Articles | Volume 15, issue 10
https://doi.org/10.5194/bg-15-3169-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/bg-15-3169-2018
© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
29 May 2018
Research article |
| 29 May 2018
| 29 May 2018
Dimethyl sulfide dynamics in first-year sea ice melt ponds in the Canadian Arctic Archipelago
Margaux Gourdal
CORRESPONDING AUTHOR
Département de biologie, Québec-Océan and Unité Mixte
Internationale 3376 TAKUVIK, CNRS-Université Laval, 1045 Avenue de la
Médecine, Ville de Québec, Québec G1V 0A6, Canada
Martine Lizotte
Département de biologie, Québec-Océan and Unité Mixte
Internationale 3376 TAKUVIK, CNRS-Université Laval, 1045 Avenue de la
Médecine, Ville de Québec, Québec G1V 0A6, Canada
Guillaume Massé
Département de biologie, Québec-Océan and Unité Mixte
Internationale 3376 TAKUVIK, CNRS-Université Laval, 1045 Avenue de la
Médecine, Ville de Québec, Québec G1V 0A6, Canada
Michel Gosselin
Institut des Sciences de la Mer de Rimouski (ISMER), Université du
Québec à Rimouski, 310 Allée des Ursulines, Rimouski, Québec
G5L 3A1, Canada
Michel Poulin
Research and Collections, Canadian Museum of Nature, P.O. Box 3443,
Station D, Ottawa, Ontario K1P 6P4, Canada
Michael Scarratt
Maurice Lamontagne Institute, Fisheries and Oceans Canada, P.O. Box
1000, Mont-Joli, Québec G5H 3Z4, Canada
Joannie Charette
Institut des Sciences de la Mer de Rimouski (ISMER), Université du
Québec à Rimouski, 310 Allée des Ursulines, Rimouski, Québec
G5L 3A1, Canada
Maurice Levasseur
Département de biologie, Québec-Océan and Unité Mixte
Internationale 3376 TAKUVIK, CNRS-Université Laval, 1045 Avenue de la
Médecine, Ville de Québec, Québec G1V 0A6, Canada
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The Arctic is experiencing considerable environmental change with climate warming, illustrated by the dramatic decrease in sea-ice extent. It is important to understand both the natural and perturbed Arctic systems to gain a better understanding of how they will change in the future. This paper summarizes new insights into the relationships between Arctic aerosol particles and climate, as learned over the past five or so years by a large Canadian research consortium, NETCARE.
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Robin Bénard, Maurice Levasseur, Michael Scarratt, Marie-Amélie Blais, Alfonso Mucci, Gustavo Ferreyra, Michel Starr, Michel Gosselin, Jean-Éric Tremblay, and Martine Lizotte
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We investigated the combined effect of ocean acidification and warming on the dynamics of the phytoplankton fall boom in the Lower St. Lawrence Estuary, Canada. Twelve 2600 L mesocosms were used to cover a wide range of pH and two temperatures. We found that warming, rather than acidification, is more likely to alter the autumnal bloom in this estuary in the decades to come by stimulating the development and senescence of diatoms, and promoting picocyanobacteria proliferation.
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We developed a new algorithm to estimate the sea-surface concentration of dimethylsulfide (DMS) using satellite data. DMS is a gas produced by marine plankton that, once emitted to the atmosphere, plays a key climatic role by seeding cloud formation. We used the algorithm to produce global DMS maps and also regional DMS time series. The latter suggest that DMS can vary largely from one year to another, which should be taken into account in atmospheric studies.
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This paper presents some of the first high-resolution measurements of a biologically-produced climate-active sulfur gas (dimethylsulfide – DMS) ever made in the Canadian Arctic, taken using two novel high-resolution sampling techniques aboard an icebreaker in the summer of 2015. We show increased concentrations of DMS and its precursors in frontal zones and areas of high sea ice accumulation. Our results provide a snapshot of climate-active gas dynamics in a rapidly changing Arctic.
Martine Lizotte, Maurice Levasseur, Cliff S. Law, Carolyn F. Walker, Karl A. Safi, Andrew Marriner, and Ronald P. Kiene
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During a 4-week oceanographic cruise in 2012, we investigated the water masses bordering the subtropical front near New Zealand as sources of the biogenic gas dimethyl sulfide (DMS). DMS oxidation products may influence the atmospheric radiative budget of the Earth. Concentrations of DMS were high in the study region and DMS's precursor, dimethylsulfoniopropionate, showed a strong association with phytoplankton biomass in relation to the persistent dominance of dinoflagellates/coccolithophores.
Cliff S. Law, Murray J. Smith, Mike J. Harvey, Thomas G. Bell, Luke T. Cravigan, Fiona C. Elliott, Sarah J. Lawson, Martine Lizotte, Andrew Marriner, John McGregor, Zoran Ristovski, Karl A. Safi, Eric S. Saltzman, Petri Vaattovaara, and Carolyn F. Walker
Atmos. Chem. Phys., 17, 13645–13667, https://doi.org/10.5194/acp-17-13645-2017, https://doi.org/10.5194/acp-17-13645-2017, 2017
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We carried out a multidisciplinary study to examine how aerosol production is influenced by the production and emission of trace gases and particles in the surface ocean. Phytoplankton blooms of different species composition in frontal waters southeast of New Zealand were a significant source of dimethylsulfide and other aerosol precursors. The relationships between surface ocean biogeochemistry and aerosol composition will inform the understanding of aerosol production over the remote ocean.
Douglas B. Collins, Julia Burkart, Rachel Y.-W. Chang, Martine Lizotte, Aude Boivin-Rioux, Marjolaine Blais, Emma L. Mungall, Matthew Boyer, Victoria E. Irish, Guillaume Massé, Daniel Kunkel, Jean-Éric Tremblay, Tim Papakyriakou, Allan K. Bertram, Heiko Bozem, Michel Gosselin, Maurice Levasseur, and Jonathan P. D. Abbatt
Atmos. Chem. Phys., 17, 13119–13138, https://doi.org/10.5194/acp-17-13119-2017, https://doi.org/10.5194/acp-17-13119-2017, 2017
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The sources of aerosol particles and their growth to sizes large enough to act as cloud droplet seeds is of major importance to climate since clouds exert substantial control over the atmospheric energy balance. Using ship-board measurements from two summers in the Canadian Arctic, aerosol formation events were related to co-sampled atmospheric and oceanic parameters, providing insight into factors that drive particle formation and motivating further study of ocean–atmosphere interactions.
Victoria E. Irish, Pablo Elizondo, Jessie Chen, Cédric Chou, Joannie Charette, Martine Lizotte, Luis A. Ladino, Theodore W. Wilson, Michel Gosselin, Benjamin J. Murray, Elena Polishchuk, Jonathan P. D. Abbatt, Lisa A. Miller, and Allan K. Bertram
Atmos. Chem. Phys., 17, 10583–10595, https://doi.org/10.5194/acp-17-10583-2017, https://doi.org/10.5194/acp-17-10583-2017, 2017
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The ocean is a possible source of atmospheric ice-nucleating particles (INPs). In this study we found that INPs were ubiquitous in the sea-surface microlayer and bulk seawater in the Canadian Arctic. A strong negative correlation was observed between salinity and freezing temperatures (after correcting for freezing point depression). Heat and filtration treatments of the samples showed that the INPs were likely biological material with sizes between 0.02 μm and 0.2 μm in diameter.
Roya Ghahreman, Ann-Lise Norman, Betty Croft, Randall V. Martin, Jeffrey R. Pierce, Julia Burkart, Ofelia Rempillo, Heiko Bozem, Daniel Kunkel, Jennie L. Thomas, Amir A. Aliabadi, Gregory R. Wentworth, Maurice Levasseur, Ralf M. Staebler, Sangeeta Sharma, and W. Richard Leaitch
Atmos. Chem. Phys., 17, 8757–8770, https://doi.org/10.5194/acp-17-8757-2017, https://doi.org/10.5194/acp-17-8757-2017, 2017
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We present spring and summertime vertical profile measurements of Arctic dimethyl sulfide (DMS), together with model simulations to consider what these profiles indicate about DMS sources and lifetimes in the Arctic. Our results highlight the role of local open water as the source of DMS(g) during July 2014 and the influence of long-range transport of DMS(g) from further afield in the Arctic during April 2015.
Hakase Hayashida, Nadja Steiner, Adam Monahan, Virginie Galindo, Martine Lizotte, and Maurice Levasseur
Biogeosciences, 14, 3129–3155, https://doi.org/10.5194/bg-14-3129-2017, https://doi.org/10.5194/bg-14-3129-2017, 2017
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In remote regions, cloud conditions may be strongly influenced by oceanic source of dimethylsulfide (DMS) produced by plankton and bacteria. In the Arctic, sea ice provides an additional source of these aerosols. The results of this study highlight the importance of taking into account both the sea-ice sulfur cycle and ecosystem in the flux estimates of oceanic DMS near the ice margins and identify key uncertainties in processes and rates that would be better constrained by new observations.
Rachel Hussherr, Maurice Levasseur, Martine Lizotte, Jean-Éric Tremblay, Jacoba Mol, Helmuth Thomas, Michel Gosselin, Michel Starr, Lisa A. Miller, Tereza Jarniková, Nina Schuback, and Alfonso Mucci
Biogeosciences, 14, 2407–2427, https://doi.org/10.5194/bg-14-2407-2017, https://doi.org/10.5194/bg-14-2407-2017, 2017
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This study assesses the impact of ocean acidification on phytoplankton and its synthesis of the climate-active gas dimethyl sulfide (DMS), as well as its modulation, by two contrasting light regimes in the Arctic. The light regimes tested had no significant impact on either the phytoplankton or DMS concentration, whereas both variables decreased linearly with the decrease in pH. Thus, a rapid decrease in surface water pH could alter the algal biomass and inhibit DMS production in the Arctic.
Philippine Campagne, Xavier Crosta, Sabine Schmidt, Marie Noëlle Houssais, Olivier Ther, and Guillaume Massé
Biogeosciences, 13, 4205–4218, https://doi.org/10.5194/bg-13-4205-2016, https://doi.org/10.5194/bg-13-4205-2016, 2016
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Diatoms and biomarkers have been recently used for palaeoclimate reconstructions in the Southern Ocean. Few sediment-based ecological studies have investigated their relationships with environmental conditions. Here, we compare high-resolution sedimentary records with meteorological data to study relationships between our proxies and recent atmospheric and sea surface changes. Our results indicate that coupled wind pattern and sea surface variability act as the proximal forcing at that scale.
Amir A. Aliabadi, Jennie L. Thomas, Andreas B. Herber, Ralf M. Staebler, W. Richard Leaitch, Hannes Schulz, Kathy S. Law, Louis Marelle, Julia Burkart, Megan D. Willis, Heiko Bozem, Peter M. Hoor, Franziska Köllner, Johannes Schneider, Maurice Levasseur, and Jonathan P. D. Abbatt
Atmos. Chem. Phys., 16, 7899–7916, https://doi.org/10.5194/acp-16-7899-2016, https://doi.org/10.5194/acp-16-7899-2016, 2016
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For the first time, ship emissions of an ice-breaker, the Amundsen, is characterized while breaking ice in the Canadian Arctic using the plume intercepts by the Polar 6 aircraft. The study is novel, estimating lower plume expansion rates over the stable Arctic marine boundary layer and different emissions factors for oxides of nitrogen, black carbon, and carbon monoxide, compared to plume intercept studies in mid latitudes. These results can inform policy making and emission inventory datasets.
Emma L. Mungall, Betty Croft, Martine Lizotte, Jennie L. Thomas, Jennifer G. Murphy, Maurice Levasseur, Randall V. Martin, Jeremy J. B. Wentzell, John Liggio, and Jonathan P. D. Abbatt
Atmos. Chem. Phys., 16, 6665–6680, https://doi.org/10.5194/acp-16-6665-2016, https://doi.org/10.5194/acp-16-6665-2016, 2016
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Previous work has suggested that marine emissions of dimethyl sulfide (DMS) could impact the Arctic climate through interactions with clouds. We made the first high-time-resolution measurements of summertime atmospheric DMS in the Canadian Arctic, and performed source sensitivity simulations. We found that regional marine sources dominated, but do not appear to be sufficient to explain our observations. Understanding DMS sources in the Arctic is necessary to model future climate in the region.
Roya Ghahreman, Ann-Lise Norman, Jonathan P. D. Abbatt, Maurice Levasseur, and Jennie L. Thomas
Atmos. Chem. Phys., 16, 5191–5202, https://doi.org/10.5194/acp-16-5191-2016, https://doi.org/10.5194/acp-16-5191-2016, 2016
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Aerosols in six size fractions (> 0.49–7.0 microns) were collected in the Arctic (July 2014). The isotopic composition of sulfate aerosols was measured to determine the role of biogenic and anthropogenic sources in the growth of aerosols. More than 63 % of the average sulfate concentration in the fine aerosols (> 0.49 microns) was from biogenic sources. For some samples, the S isotope ratio values for SO2 and fine aerosols were close together, suggesting the same source for SO2 and aerosol sulfur.
Josiane Mélançon, Maurice Levasseur, Martine Lizotte, Michael Scarratt, Jean-Éric Tremblay, Philippe Tortell, Gui-Peng Yang, Guang-Yu Shi, Huiwang Gao, David Semeniuk, Marie Robert, Michael Arychuk, Keith Johnson, Nes Sutherland, Marty Davelaar, Nina Nemcek, Angelica Peña, and Wendy Richardson
Biogeosciences, 13, 1677–1692, https://doi.org/10.5194/bg-13-1677-2016, https://doi.org/10.5194/bg-13-1677-2016, 2016
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Ocean acidification is likely to affect iron-limited phytoplankton fertilization by desert dust. Short incubations of northeast subarctic Pacific waters enriched with dust and set at pH 8.0 and 7.8 were conducted. Acidification led to a significant reduction (by 16–38 %) of the final concentration of chl a reached after enrichment. These results show that dust deposition events in a low-pH iron-limited ocean are likely to stimulate phytoplankton growth to a lesser extent than in today's ocean.
Gregory R. Wentworth, Jennifer G. Murphy, Betty Croft, Randall V. Martin, Jeffrey R. Pierce, Jean-Sébastien Côté, Isabelle Courchesne, Jean-Éric Tremblay, Jonathan Gagnon, Jennie L. Thomas, Sangeeta Sharma, Desiree Toom-Sauntry, Alina Chivulescu, Maurice Levasseur, and Jonathan P. D. Abbatt
Atmos. Chem. Phys., 16, 1937–1953, https://doi.org/10.5194/acp-16-1937-2016, https://doi.org/10.5194/acp-16-1937-2016, 2016
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Air near the surface in the summertime Arctic is extremely clean and typically has very low concentrations of both gases and particles. However, atmospheric measurements taken throughout the Canadian Arctic in the summer of 2014 revealed higher-than-expected amounts of gaseous ammonia. It is likely the majority of this ammonia is coming from migratory seabird colonies throughout the Arctic. Seabird guano (dung) releases ammonia which could impact climate and sensitive Arctic ecosystems.
P. Coupel, A. Matsuoka, D. Ruiz-Pino, M. Gosselin, D. Marie, J.-É. Tremblay, and M. Babin
Biogeosciences, 12, 991–1006, https://doi.org/10.5194/bg-12-991-2015, https://doi.org/10.5194/bg-12-991-2015, 2015
A. Taalba, H. Xie, M. G. Scarratt, S. Bélanger, and M. Levasseur
Biogeosciences, 10, 6793–6806, https://doi.org/10.5194/bg-10-6793-2013, https://doi.org/10.5194/bg-10-6793-2013, 2013
M. Ardyna, M. Babin, M. Gosselin, E. Devred, S. Bélanger, A. Matsuoka, and J.-É. Tremblay
Biogeosciences, 10, 4383–4404, https://doi.org/10.5194/bg-10-4383-2013, https://doi.org/10.5194/bg-10-4383-2013, 2013
Related subject area
Biodiversity and Ecosystem Function: Marine
Growth response of Emiliania huxleyi to ocean alkalinity enhancement
Phytoplankton adaptation to steady or changing environments affects marine ecosystem functioning
Characterizing regional oceanography and bottom environmental conditions at two contrasting sponge grounds on the northern Labrador Shelf
Seasonal foraging behavior of Weddell seals in relation to oceanographic environmental conditions in the Ross Sea, Antarctica
Multifactorial effects of warming, low irradiance, and low salinity on Arctic kelps
Early life stages of fish under ocean alkalinity enhancement in coastal plankton communities
Planktonic foraminifera assemblage composition and flux dynamics inferred from an annual sediment trap record in the central Mediterranean Sea
Reefal ostracod assemblages from the Zanzibar Archipelago (Tanzania)
Composite calcite and opal test in Foraminifera (Rhizaria)
Influence of oxygen minimum zone on macrobenthic community structure in the northern Benguela Upwelling System: a macro-nematode perspective
Simulated terrestrial runoff shifts the metabolic balance of a coastal Mediterranean plankton community towards heterotrophy
Contrasting carbon cycling in the benthic food webs between a river-fed, high-energy canyon and an upper continental slope
A critical trade-off between nitrogen quota and growth allows Coccolithus braarudii life cycle phases to exploit varying environment
Structural complexity and benthic metabolism: resolving the links between carbon cycling and biodiversity in restored seagrass meadows
Biological response of eelgrass epifauna, Taylor’s sea hare (Phyllaplysia taylori) and eelgrass isopod (Idotea resecata), to elevated ocean alkalinity
Including the invisible: Deep depth-integrated chlorophyll estimates from remote sensing may assist in identifying biologically important areas in oligotrophic coastal margins
Building your own mountain: the effects, limits, and drawbacks of cold-water coral ecosystem engineering
Phytoplankton response to increased nickel in the context of ocean alkalinity enhancement
Diversity and density relationships between lebensspuren and tracemaking organisms: a study case from abyssal northwest Pacific
Technical note: An autonomous flow-through salinity and temperature perturbation mesocosm system for multi-stressor experiments
Reviews and syntheses: The clam before the storm – a meta-analysis showing the effect of combined climate change stressors on bivalves
A step towards measuring connectivity in the deep sea: elemental fingerprints of mollusk larval shells discriminate hydrothermal vent sites
Spawner weight and ocean temperature drive Allee effect dynamics in Atlantic cod, Gadus morhua: inherent and emergent density regulation
Bacterioplankton dark CO2 fixation in oligotrophic waters
The bottom mixed layer depth as an indicator of subsurface Chlorophyll a distribution
Ideas and perspectives: The fluctuating nature of oxygen shapes the ecology of aquatic habitats and their biogeochemical cycles – the aquatic oxyscape
Impact of deoxygenation and warming on global marine species in the 21st century
Ecological divergence of a mesocosm in an eastern boundary upwelling system assessed with multi-marker environmental DNA metabarcoding
Unique benthic foraminiferal communities (stained) in diverse environments of sub-Antarctic fjords, South Georgia
Upwelled plankton community modulates surface bloom succession and nutrient availability in a natural plankton assemblage
First phytoplankton community assessment of the Kong Håkon VII Hav, Southern Ocean, during austral autumn
Early life stages of a Mediterranean coral are vulnerable to ocean warming and acidification
Mediterranean seagrasses as carbon sinks: methodological and regional differences
Contrasting vertical distributions of recent planktic foraminifera off Indonesia during the southeast monsoon: implications for paleoceanographic reconstructions
The onset of the spring phytoplankton bloom in the coastal North Sea supports the Disturbance Recovery Hypothesis
Species richness and functional attributes of fish assemblages across a large-scale salinity gradient in shallow coastal areas
Modeling the growth and sporulation dynamics of the macroalga Ulva in mixed-age populations in cultivation and the formation of green tides
Spatial changes in community composition and food web structure of mesozooplankton across the Adriatic basin (Mediterranean Sea)
Predicting mangrove forest dynamics across a soil salinity gradient using an individual-based vegetation model linked with plant hydraulics
Will daytime community calcification reflect reef accretion on future, degraded coral reefs?
Modeling polar marine ecosystem functions guided by bacterial physiological and taxonomic traits
Quantifying functional consequences of habitat degradation on a Caribbean coral reef
Enhanced chlorophyll-a concentration in the wake of Sable Island, eastern Canada, revealed by two decades of satellite observations: a response to grey seal population dynamics?
Population dynamics and reproduction strategies of planktonic foraminifera in the open ocean
The Bouraké semi-enclosed lagoon (New Caledonia) – a natural laboratory to study the lifelong adaptation of a coral reef ecosystem to extreme environmental conditions
Atypical, high-diversity assemblages of foraminifera in a mangrove estuary in northern Brazil
Permanent ectoplasmic structures in deep-sea Cibicides and Cibicidoides taxa – long-term observations at in situ pressure
Ideas and perspectives: Ushering the Indian Ocean into the UN Decade of Ocean Science for Sustainable Development (UNDOSSD) through marine ecosystem research and operational services – an early career's take
Persistent effects of sand extraction on habitats and associated benthic communities in the German Bight
Spatial patterns of ectoenzymatic kinetics in relation to biogeochemical properties in the Mediterranean Sea and the concentration of the fluorogenic substrate used
Giulia Faucher, Mathias Haunost, Allanah Joy Paul, Anne Ulrike Christiane Tietz, and Ulf Riebesell
Biogeosciences, 22, 405–415, https://doi.org/10.5194/bg-22-405-2025, https://doi.org/10.5194/bg-22-405-2025, 2025
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Ocean alkalinity enhancement (OAE) is being evaluated for its capacity to absorb atmospheric CO2 in the ocean and store it long term to mitigate climate change. As researchers plan for field tests to gain insights into OAE, sharing knowledge on its environmental impact on marine ecosystems is urgent. Our study examined NaOH-induced OAE in Emiliania huxleyi, a key coccolithophore species, and found that the added total alkalinity (ΔTA) should stay below 600 µmol kg⁻¹ to avoid negative impacts.
Isabell Hochfeld and Jana Hinners
Biogeosciences, 21, 5591–5611, https://doi.org/10.5194/bg-21-5591-2024, https://doi.org/10.5194/bg-21-5591-2024, 2024
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Ecosystem models disagree on future changes in marine ecosystem functioning. We suspect that the lack of phytoplankton adaptation represents a major uncertainty factor, given the key role that phytoplankton play in marine ecosystems. Using an evolutionary ecosystem model, we found that phytoplankton adaptation can notably change simulated ecosystem dynamics. Future models should include phytoplankton adaptation; otherwise they can systematically overestimate future ecosystem-level changes.
Evert de Froe, Igor Yashayaev, Christian Mohn, Johanne Vad, Furu Mienis, Gerard Duineveld, Ellen Kenchington, Erica Head, Steve W. Ross, Sabena Blackbird, George A. Wolff, J. Murray Roberts, Barry MacDonald, Graham Tulloch, and Dick van Oevelen
Biogeosciences, 21, 5407–5433, https://doi.org/10.5194/bg-21-5407-2024, https://doi.org/10.5194/bg-21-5407-2024, 2024
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Deep-sea sponge grounds are distributed globally and are considered hotspots of biological diversity and biogeochemical cycling. To date, little is known about the environmental constraints that control where deep-sea sponge grounds occur and what conditions favour high sponge biomass. Here, we characterize oceanographic conditions at two contrasting sponge grounds. Our results imply that sponges and associated fauna benefit from strong tidal currents and favourable regional ocean currents.
Hyunjae Chung, Jikang Park, Mijin Park, Yejin Kim, Unyoung Chun, Sukyoung Yun, Won Sang Lee, Hyun A. Choi, Ji Sung Na, Seung-Tae Yoon, and Won Young Lee
Biogeosciences, 21, 5199–5217, https://doi.org/10.5194/bg-21-5199-2024, https://doi.org/10.5194/bg-21-5199-2024, 2024
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Understanding how marine animals adapt to variations in marine environmental conditions is paramount. In this paper, we investigated the influence of changes in seawater and light conditions on the seasonal foraging behavior of Weddell seals in the Ross Sea, Antarctica. Our findings could serve as a baseline and establish a foundational understanding for future research, particularly concerning the impact of marine environmental changes on the ecosystem of the Ross Sea Marine Protected Area.
Anaïs Lebrun, Cale A. Miller, Marc Meynadier, Steeve Comeau, Pierre Urrutti, Samir Alliouane, Robert Schlegel, Jean-Pierre Gattuso, and Frédéric Gazeau
Biogeosciences, 21, 4605–4620, https://doi.org/10.5194/bg-21-4605-2024, https://doi.org/10.5194/bg-21-4605-2024, 2024
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We tested the effects of warming, low salinity, and low irradiance on Arctic kelps. We show that growth rates were similar across species and treatments. Alaria esculenta is adapted to low-light conditions. Saccharina latissima exhibited nitrogen limitation, suggesting coastal erosion and permafrost thawing could be beneficial. Laminaria digitata did not respond to the treatments. Gene expression of Hedophyllum nigripes and S. latissima indicated acclimation to the experimental treatments.
Silvan Urs Goldenberg, Ulf Riebesell, Daniel Brüggemann, Gregor Börner, Michael Sswat, Arild Folkvord, Maria Couret, Synne Spjelkavik, Nicolás Sánchez, Cornelia Jaspers, and Marta Moyano
Biogeosciences, 21, 4521–4532, https://doi.org/10.5194/bg-21-4521-2024, https://doi.org/10.5194/bg-21-4521-2024, 2024
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Ocean alkalinity enhancement (OAE) is being evaluated as a carbon dioxide removal technology for climate change mitigation. With an experiment on species communities, we show that larval and juvenile fish can be resilient to the resulting perturbation of seawater. Fish may hence recruit successfully and continue to support fisheries' production in regions of OAE. Our findings help to establish an environmentally safe operating space for this ocean-based solution.
Thibauld M. Béjard, Andrés S. Rigual-Hernández, Javier P. Tarruella, José-Abel Flores, Anna Sanchez-Vidal, Irene Llamas-Cano, and Francisco J. Sierro
Biogeosciences, 21, 4051–4076, https://doi.org/10.5194/bg-21-4051-2024, https://doi.org/10.5194/bg-21-4051-2024, 2024
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The Mediterranean Sea is regarded as a climate change hotspot. Documenting the population of planktonic foraminifera is crucial. In the Sicily Channel, fluxes are higher during winter and positively linked with chlorophyll a concentration and cool temperatures. A comparison with other Mediterranean sites shows the transitional aspect of the studied zone. Finally, modern populations significantly differ from those in the sediment, highlighting a possible effect of environmental change.
Skye Yunshu Tian, Martin Langer, Moriaki Yasuhara, and Chih-Lin Wei
Biogeosciences, 21, 3523–3536, https://doi.org/10.5194/bg-21-3523-2024, https://doi.org/10.5194/bg-21-3523-2024, 2024
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Through the first large-scale study of meiobenthic ostracods from the diverse and productive reef ecosystem in the Zanzibar Archipelago, Tanzania, we found that the diversity and composition of ostracod assemblages as controlled by benthic habitats and human impacts were indicative of overall reef health, and we highlighted the usefulness of ostracods as a model proxy to monitor and understand the degradation of reef ecosystems from the coral-dominated phase to the algae-dominated phase.
Julien Richirt, Satoshi Okada, Yoshiyuki Ishitani, Katsuyuki Uematsu, Akihiro Tame, Kaya Oda, Noriyuki Isobe, Toyoho Ishimura, Masashi Tsuchiya, and Hidetaka Nomaki
Biogeosciences, 21, 3271–3288, https://doi.org/10.5194/bg-21-3271-2024, https://doi.org/10.5194/bg-21-3271-2024, 2024
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We report the first benthic foraminifera with a composite test (i.e. shell) made of opal, which coats the inner part of the calcitic layer. Using comprehensive techniques, we describe the morphology and the composition of this novel opal layer and provide evidence that the opal is precipitated by the foraminifera itself. We explore the potential precipitation process and function(s) of this composite test and further discuss the possible implications for palaeoceanographic reconstructions.
Said Mohamed Hashim, Beth Wangui Waweru, and Agnes Muthumbi
Biogeosciences, 21, 2995–3006, https://doi.org/10.5194/bg-21-2995-2024, https://doi.org/10.5194/bg-21-2995-2024, 2024
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The study investigates the impact of decreasing oxygen in the ocean on macrofaunal communities using the BUS as an example. It identifies distinct shifts in community composition and feeding guilds across oxygen zones, with nematodes dominating dysoxic areas. These findings underscore the complex responses of benthic organisms to oxygen gradients, crucial for understanding ecosystem dynamics in hypoxic environments and their implications for marine biodiversity and sustainability.
Tanguy Soulié, Francesca Vidussi, Justine Courboulès, Marie Heydon, Sébastien Mas, Florian Voron, Carolina Cantoni, Fabien Joux, and Behzad Mostajir
Biogeosciences, 21, 1887–1902, https://doi.org/10.5194/bg-21-1887-2024, https://doi.org/10.5194/bg-21-1887-2024, 2024
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Due to climate change, it is projected that extreme rainfall events, which bring terrestrial matter into coastal seas, will occur more frequently in the Mediterranean region. To test the effects of runoffs of terrestrial matter on plankton communities from Mediterranean coastal waters, an in situ mesocosm experiment was conducted. The simulated runoff affected key processes mediated by plankton, such as primary production and respiration, suggesting major consequences of such events.
Chueh-Chen Tung, Yu-Shih Lin, Jian-Xiang Liao, Tzu-Hsuan Tu, James T. Liu, Li-Hung Lin, Pei-Ling Wang, and Chih-Lin Wei
Biogeosciences, 21, 1729–1756, https://doi.org/10.5194/bg-21-1729-2024, https://doi.org/10.5194/bg-21-1729-2024, 2024
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This study contrasts seabed food webs between a river-fed, high-energy canyon and the nearby slope. We show higher organic carbon (OC) flows through the canyon than the slope. Bacteria dominated the canyon, while seabed fauna contributed more to the slope food web. Due to frequent perturbation, the canyon had a lower faunal stock and OC recycling. Only 4 % of the seabed OC flux enters the canyon food web, suggesting a significant role of the river-fed canyon in transporting OC to the deep sea.
Joost de Vries, Fanny Monteiro, Gerald Langer, Colin Brownlee, and Glen Wheeler
Biogeosciences, 21, 1707–1727, https://doi.org/10.5194/bg-21-1707-2024, https://doi.org/10.5194/bg-21-1707-2024, 2024
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Calcifying phytoplankton (coccolithophores) utilize a life cycle in which they can grow and divide into two different phases. These two phases (HET and HOL) vary in terms of their physiology and distributions, with many unknowns about what the key differences are. Using a combination of lab experiments and model simulations, we find that nutrient storage is a critical difference between the two phases and that this difference allows them to inhabit different nitrogen input regimes.
Theodor Kindeberg, Karl Michael Attard, Jana Hüller, Julia Müller, Cintia Organo Quintana, and Eduardo Infantes
Biogeosciences, 21, 1685–1705, https://doi.org/10.5194/bg-21-1685-2024, https://doi.org/10.5194/bg-21-1685-2024, 2024
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Seagrass meadows are hotspots for biodiversity and productivity, and planting seagrass is proposed as a tool for mitigating biodiversity loss and climate change. We assessed seagrass planted in different years and found that benthic oxygen and carbon fluxes increased as the seabed developed from bare sediments to a mature seagrass meadow. This increase was partly linked to the diversity of colonizing algae which increased the light-use efficiency of the seagrass meadow community.
Kristin Jones, Lenaïg Hemery, Nicholas Ward, Peter Regier, Mallory Ringham, and Matthew Eisaman
EGUsphere, https://doi.org/10.5194/egusphere-2024-972, https://doi.org/10.5194/egusphere-2024-972, 2024
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Ocean alkalinity enhancement is a marine carbon dioxide removal method that aims to mitigate the effects of climate change. This method causes localized increases in ocean pH, but the biological impacts of such changes are not well known. Our study investigated the response of two nearshore invertebrate species to increased pH and found the sea hare to be sensitive to pH changes, while the isopod was more resilient. Understanding interactions with biology is important as this field expands.
Renée P. Schoeman, Christine Erbe, and Robert D. McCauley
EGUsphere, https://doi.org/10.5194/egusphere-2024-859, https://doi.org/10.5194/egusphere-2024-859, 2024
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This study used ocean glider data to extend previously established relationships between surface and depth-integrated chlorophyll to an intermittent-oligotrophic continental margin. Relationships were established for stratified summer-transition months, stratified winter months, and mixed water columns. Integrations over twice the euphotic zone depth best captured Deep Chlorophyll Maxima contributing to a seasonal increase in depth-integrated chlorophyll likely relevant to higher trophic levels.
Anna-Selma van der Kaaden, Sandra R. Maier, Siluo Chen, Laurence H. De Clippele, Evert de Froe, Theo Gerkema, Johan van de Koppel, Furu Mienis, Christian Mohn, Max Rietkerk, Karline Soetaert, and Dick van Oevelen
Biogeosciences, 21, 973–992, https://doi.org/10.5194/bg-21-973-2024, https://doi.org/10.5194/bg-21-973-2024, 2024
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Combining hydrodynamic simulations and annotated videos, we separated which hydrodynamic variables that determine reef cover are engineered by cold-water corals and which are not. Around coral mounds, hydrodynamic zones seem to create a typical reef zonation, restricting corals from moving deeper (the expected response to climate warming). But non-engineered downward velocities in winter (e.g. deep winter mixing) seem more important for coral reef growth than coral engineering.
Xiaoke Xin, Giulia Faucher, and Ulf Riebesell
Biogeosciences, 21, 761–772, https://doi.org/10.5194/bg-21-761-2024, https://doi.org/10.5194/bg-21-761-2024, 2024
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Ocean alkalinity enhancement (OAE) is a promising approach to remove CO2 by accelerating natural rock weathering. However, some of the alkaline substances contain trace metals which could be toxic to marine life. By exposing three representative phytoplankton species to Ni released from alkaline materials, we observed varying responses of phytoplankton to nickel concentrations, suggesting caution should be taken and toxic thresholds should be avoided in OAE with Ni-rich materials.
Olmo Miguez-Salas, Angelika Brandt, Henry Knauber, and Torben Riehl
Biogeosciences, 21, 641–655, https://doi.org/10.5194/bg-21-641-2024, https://doi.org/10.5194/bg-21-641-2024, 2024
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In the deep sea, the interaction between benthic fauna (tracemakers) and substrate can be preserved as traces (i.e. lebensspuren), which are common features of seafloor landscapes, rendering them promising proxies for inferring biodiversity from marine images. No general correlation was observed between traces and benthic fauna. However, a local correlation was observed between specific stations depending on unknown tracemakers, tracemaker behaviour, and lebensspuren morphotypes.
Cale A. Miller, Pierre Urrutti, Jean-Pierre Gattuso, Steeve Comeau, Anaïs Lebrun, Samir Alliouane, Robert W. Schlegel, and Frédéric Gazeau
Biogeosciences, 21, 315–333, https://doi.org/10.5194/bg-21-315-2024, https://doi.org/10.5194/bg-21-315-2024, 2024
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This work describes an experimental system that can replicate and manipulate environmental conditions in marine or aquatic systems. Here, we show how the temperature and salinity of seawater delivered from a fjord is manipulated to experimental tanks on land. By constantly monitoring temperature and salinity in each tank via a computer program, the system continuously adjusts automated flow valves to ensure the seawater in each tank matches the targeted experimental conditions.
Rachel A. Kruft Welton, George Hoppit, Daniela N. Schmidt, James D. Witts, and Benjamin C. Moon
Biogeosciences, 21, 223–239, https://doi.org/10.5194/bg-21-223-2024, https://doi.org/10.5194/bg-21-223-2024, 2024
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We conducted a meta-analysis of known experimental literature examining how marine bivalve growth rates respond to climate change. Growth is usually negatively impacted by climate change. Bivalve eggs/larva are generally more vulnerable than either juveniles or adults. Available data on the bivalve response to climate stressors are biased towards early growth stages (commercially important in the Global North), and many families have only single experiments examining climate change impacts.
Vincent Mouchi, Christophe Pecheyran, Fanny Claverie, Cécile Cathalot, Marjolaine Matabos, Yoan Germain, Olivier Rouxel, Didier Jollivet, Thomas Broquet, and Thierry Comtet
Biogeosciences, 21, 145–160, https://doi.org/10.5194/bg-21-145-2024, https://doi.org/10.5194/bg-21-145-2024, 2024
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The impact of deep-sea mining will depend critically on the ability of larval dispersal of hydrothermal mollusks to connect and replenish natural populations. However, assessing connectivity is extremely challenging, especially in the deep sea. Here, we investigate the potential of using the chemical composition of larval shells to discriminate larval origins between multiple hydrothermal sites in the southwest Pacific. Our results confirm that this method can be applied with high accuracy.
Anna-Marie Winter, Nadezda Vasilyeva, and Artem Vladimirov
Biogeosciences, 20, 3683–3716, https://doi.org/10.5194/bg-20-3683-2023, https://doi.org/10.5194/bg-20-3683-2023, 2023
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There is an increasing number of fish in poor state, and many do not recover, even when fishing pressure is ceased. An Allee effect can hinder population recovery because it suppresses the fish's productivity at low abundance. With a model fitted to 17 Atlantic cod stocks, we find that ocean warming and fishing can cause an Allee effect. If present, the Allee effect hinders fish recovery. This shows that Allee effects are dynamic, not uncommon, and calls for precautionary management measures.
Afrah Alothman, Daffne López-Sandoval, Carlos M. Duarte, and Susana Agustí
Biogeosciences, 20, 3613–3624, https://doi.org/10.5194/bg-20-3613-2023, https://doi.org/10.5194/bg-20-3613-2023, 2023
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This study investigates bacterial dissolved inorganic carbon (DIC) fixation in the Red Sea, an oligotrophic ecosystem, using stable-isotope labeling and spectroscopy. The research reveals that bacterial DIC fixation significantly contributes to total DIC fixation, in the surface and deep water. The study demonstrates that as primary production decreases, the role of bacterial DIC fixation increases, emphasizing its importance with photosynthesis in estimating oceanic carbon dioxide production.
Arianna Zampollo, Thomas Cornulier, Rory O'Hara Murray, Jacqueline Fiona Tweddle, James Dunning, and Beth E. Scott
Biogeosciences, 20, 3593–3611, https://doi.org/10.5194/bg-20-3593-2023, https://doi.org/10.5194/bg-20-3593-2023, 2023
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This paper highlights the use of the bottom mixed layer depth (BMLD: depth between the end of the pycnocline and the mixed layer below) to investigate subsurface Chlorophyll a (a proxy of primary production) in temperate stratified shelf waters. The strict correlation between subsurface Chl a and BMLD becomes relevant in shelf-productive waters where multiple stressors (e.g. offshore infrastructure) will change the stratification--mixing balance and related carbon fluxes.
Marco Fusi, Sylvain Rigaud, Giovanna Guadagnin, Alberto Barausse, Ramona Marasco, Daniele Daffonchio, Julie Régis, Louison Huchet, Capucine Camin, Laura Pettit, Cristina Vina-Herbon, and Folco Giomi
Biogeosciences, 20, 3509–3521, https://doi.org/10.5194/bg-20-3509-2023, https://doi.org/10.5194/bg-20-3509-2023, 2023
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Oxygen availability in marine water and freshwater is very variable at daily and seasonal scales. The dynamic nature of oxygen fluctuations has important consequences for animal and microbe physiology and ecology, yet it is not fully understood. In this paper, we showed the heterogeneous nature of the aquatic oxygen landscape, which we defined here as the
oxyscape, and we addressed the importance of considering the oxyscape in the modelling and managing of aquatic ecosystems.
Anne L. Morée, Tayler M. Clarke, William W. L. Cheung, and Thomas L. Frölicher
Biogeosciences, 20, 2425–2454, https://doi.org/10.5194/bg-20-2425-2023, https://doi.org/10.5194/bg-20-2425-2023, 2023
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Ocean temperature and oxygen shape marine habitats together with species’ characteristics. We calculated the impacts of projected 21st-century warming and oxygen loss on the contemporary habitat volume of 47 marine species and described the drivers of these impacts. Most species lose less than 5 % of their habitat at 2 °C of global warming, but some species incur losses 2–3 times greater than that. We also calculate which species may be most vulnerable to climate change and why this is the case.
Markus A. Min, David M. Needham, Sebastian Sudek, Nathan Kobun Truelove, Kathleen J. Pitz, Gabriela M. Chavez, Camille Poirier, Bente Gardeler, Elisabeth von der Esch, Andrea Ludwig, Ulf Riebesell, Alexandra Z. Worden, and Francisco P. Chavez
Biogeosciences, 20, 1277–1298, https://doi.org/10.5194/bg-20-1277-2023, https://doi.org/10.5194/bg-20-1277-2023, 2023
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Emerging molecular methods provide new ways of understanding how marine communities respond to changes in ocean conditions. Here, environmental DNA was used to track the temporal evolution of biological communities in the Peruvian coastal upwelling system and in an adjacent enclosure where upwelling was simulated. We found that the two communities quickly diverged, with the open ocean being one found during upwelling and the enclosure evolving to one found under stratified conditions.
Wojciech Majewski, Witold Szczuciński, and Andrew J. Gooday
Biogeosciences, 20, 523–544, https://doi.org/10.5194/bg-20-523-2023, https://doi.org/10.5194/bg-20-523-2023, 2023
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We studied foraminifera living in the fjords of South Georgia, a sub-Antarctic island sensitive to climate change. As conditions in water and on the seafloor vary, different associations of these microorganisms dominate far inside, in the middle, and near fjord openings. Assemblages in inner and middle parts of fjords are specific to South Georgia, but they may become widespread with anticipated warming. These results are important for interpretating fossil records and monitoring future change.
Allanah Joy Paul, Lennart Thomas Bach, Javier Arístegui, Elisabeth von der Esch, Nauzet Hernández-Hernández, Jonna Piiparinen, Laura Ramajo, Kristian Spilling, and Ulf Riebesell
Biogeosciences, 19, 5911–5926, https://doi.org/10.5194/bg-19-5911-2022, https://doi.org/10.5194/bg-19-5911-2022, 2022
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We investigated how different deep water chemistry and biology modulate the response of surface phytoplankton communities to upwelling in the Peruvian coastal zone. Our results show that the most influential drivers were the ratio of inorganic nutrients (N : P) and the microbial community present in upwelling source water. These led to unexpected and variable development in the phytoplankton assemblage that could not be predicted by the amount of inorganic nutrients alone.
Hanna M. Kauko, Philipp Assmy, Ilka Peeken, Magdalena Różańska-Pluta, Józef M. Wiktor, Gunnar Bratbak, Asmita Singh, Thomas J. Ryan-Keogh, and Sebastien Moreau
Biogeosciences, 19, 5449–5482, https://doi.org/10.5194/bg-19-5449-2022, https://doi.org/10.5194/bg-19-5449-2022, 2022
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This article studies phytoplankton (microscopic
plantsin the ocean capable of photosynthesis) in Kong Håkon VII Hav in the Southern Ocean. Different species play different roles in the ecosystem, and it is therefore important to assess the species composition. We observed that phytoplankton blooms in this area are formed by large diatoms with strong silica armors, which can lead to high silica (and sometimes carbon) export to depth and be important prey for krill.
Chloe Carbonne, Steeve Comeau, Phoebe T. W. Chan, Keyla Plichon, Jean-Pierre Gattuso, and Núria Teixidó
Biogeosciences, 19, 4767–4777, https://doi.org/10.5194/bg-19-4767-2022, https://doi.org/10.5194/bg-19-4767-2022, 2022
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For the first time, our study highlights the synergistic effects of a 9-month warming and acidification combined stress on the early life stages of a Mediterranean azooxanthellate coral, Astroides calycularis. Our results predict a decrease in dispersion, settlement, post-settlement linear extention, budding and survival under future global change and that larvae and recruits of A. calycularis are stages of interest for this Mediterranean coral resistance, resilience and conservation.
Iris E. Hendriks, Anna Escolano-Moltó, Susana Flecha, Raquel Vaquer-Sunyer, Marlene Wesselmann, and Núria Marbà
Biogeosciences, 19, 4619–4637, https://doi.org/10.5194/bg-19-4619-2022, https://doi.org/10.5194/bg-19-4619-2022, 2022
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Seagrasses are marine plants with the capacity to act as carbon sinks due to their high primary productivity, using carbon for growth. This capacity can play a key role in climate change mitigation. We compiled and published data showing that two Mediterranean seagrass species have different metabolic rates, while the study method influences the rates of the measurements. Most communities act as carbon sinks, while the western basin might be more productive than the eastern Mediterranean.
Raúl Tapia, Sze Ling Ho, Hui-Yu Wang, Jeroen Groeneveld, and Mahyar Mohtadi
Biogeosciences, 19, 3185–3208, https://doi.org/10.5194/bg-19-3185-2022, https://doi.org/10.5194/bg-19-3185-2022, 2022
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We report census counts of planktic foraminifera in depth-stratified plankton net samples off Indonesia. Our results show that the vertical distribution of foraminifera species routinely used in paleoceanographic reconstructions varies in hydrographically distinct regions, likely in response to food availability. Consequently, the thermal gradient based on mixed layer and thermocline dwellers also differs for these regions, suggesting potential implications for paleoceanographic reconstructions.
Ricardo González-Gil, Neil S. Banas, Eileen Bresnan, and Michael R. Heath
Biogeosciences, 19, 2417–2426, https://doi.org/10.5194/bg-19-2417-2022, https://doi.org/10.5194/bg-19-2417-2022, 2022
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In oceanic waters, the accumulation of phytoplankton biomass in winter, when light still limits growth, is attributed to a decrease in grazing as the mixed layer deepens. However, in coastal areas, it is not clear whether winter biomass can accumulate without this deepening. Using 21 years of weekly data, we found that in the Scottish coastal North Sea, the seasonal increase in light availability triggers the accumulation of phytoplankton biomass in winter, when light limitation is strongest.
Birgit Koehler, Mårten Erlandsson, Martin Karlsson, and Lena Bergström
Biogeosciences, 19, 2295–2312, https://doi.org/10.5194/bg-19-2295-2022, https://doi.org/10.5194/bg-19-2295-2022, 2022
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Understanding species richness patterns remains a challenge for biodiversity management. We estimated fish species richness over a coastal salinity gradient (3–32) with a method that allowed comparing data from various sources. Species richness was 3-fold higher at high vs. low salinity, and salinity influenced species’ habitat preference, mobility and feeding type. If climate change causes upper-layer freshening of the Baltic Sea, further shifts along the identified patterns may be expected.
Uri Obolski, Thomas Wichard, Alvaro Israel, Alexander Golberg, and Alexander Liberzon
Biogeosciences, 19, 2263–2271, https://doi.org/10.5194/bg-19-2263-2022, https://doi.org/10.5194/bg-19-2263-2022, 2022
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The algal genus Ulva plays a major role in coastal ecosystems worldwide and is a promising prospect as an seagriculture crop. A substantial hindrance to cultivating Ulva arises from sudden sporulation, leading to biomass loss. This process is not yet well understood. Here, we characterize the dynamics of Ulva growth, considering the potential impact of sporulation inhibitors, using a mathematical model. Our findings are an essential step towards understanding the dynamics of Ulva growth.
Emanuela Fanelli, Samuele Menicucci, Sara Malavolti, Andrea De Felice, and Iole Leonori
Biogeosciences, 19, 1833–1851, https://doi.org/10.5194/bg-19-1833-2022, https://doi.org/10.5194/bg-19-1833-2022, 2022
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Zooplankton play a key role in marine ecosystems, forming the base of the marine food web and a link between primary producers and higher-order consumers, such as fish. This aspect is crucial in the Adriatic basin, one of the most productive and overexploited areas of the Mediterranean Sea. A better understanding of community and food web structure and their response to water mass changes is essential under a global warming scenario, as zooplankton are sensitive to climate change.
Masaya Yoshikai, Takashi Nakamura, Rempei Suwa, Sahadev Sharma, Rene Rollon, Jun Yasuoka, Ryohei Egawa, and Kazuo Nadaoka
Biogeosciences, 19, 1813–1832, https://doi.org/10.5194/bg-19-1813-2022, https://doi.org/10.5194/bg-19-1813-2022, 2022
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This study presents a new individual-based vegetation model to investigate salinity control on mangrove productivity. The model incorporates plant hydraulics and tree competition and predicts unique and complex patterns of mangrove forest structures that vary across soil salinity gradients. The presented model does not hold an empirical expression of salinity influence on productivity and thus may provide a better understanding of mangrove forest dynamics in future climate change.
Coulson A. Lantz, William Leggat, Jessica L. Bergman, Alexander Fordyce, Charlotte Page, Thomas Mesaglio, and Tracy D. Ainsworth
Biogeosciences, 19, 891–906, https://doi.org/10.5194/bg-19-891-2022, https://doi.org/10.5194/bg-19-891-2022, 2022
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Coral bleaching events continue to drive the degradation of coral reefs worldwide. In this study we measured rates of daytime coral reef community calcification and photosynthesis during a reef-wide bleaching event. Despite a measured decline in coral health across several taxa, there was no change in overall daytime community calcification and photosynthesis. These findings highlight potential limitations of these community-level metrics to reflect actual changes in coral health.
Hyewon Heather Kim, Jeff S. Bowman, Ya-Wei Luo, Hugh W. Ducklow, Oscar M. Schofield, Deborah K. Steinberg, and Scott C. Doney
Biogeosciences, 19, 117–136, https://doi.org/10.5194/bg-19-117-2022, https://doi.org/10.5194/bg-19-117-2022, 2022
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Heterotrophic marine bacteria are tiny organisms responsible for taking up organic matter in the ocean. Using a modeling approach, this study shows that characteristics (taxonomy and physiology) of bacteria are associated with a subset of ecological processes in the coastal West Antarctic Peninsula region, a system susceptible to global climate change. This study also suggests that bacteria will become more active, in particular large-sized cells, in response to changing climates in the region.
Alice E. Webb, Didier M. de Bakker, Karline Soetaert, Tamara da Costa, Steven M. A. C. van Heuven, Fleur C. van Duyl, Gert-Jan Reichart, and Lennart J. de Nooijer
Biogeosciences, 18, 6501–6516, https://doi.org/10.5194/bg-18-6501-2021, https://doi.org/10.5194/bg-18-6501-2021, 2021
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The biogeochemical behaviour of shallow reef communities is quantified to better understand the impact of habitat degradation and species composition shifts on reef functioning. The reef communities investigated barely support reef functions that are usually ascribed to conventional coral reefs, and the overall biogeochemical behaviour is found to be similar regardless of substrate type. This suggests a decrease in functional diversity which may therefore limit services provided by this reef.
Emmanuel Devred, Andrea Hilborn, and Cornelia Elizabeth den Heyer
Biogeosciences, 18, 6115–6132, https://doi.org/10.5194/bg-18-6115-2021, https://doi.org/10.5194/bg-18-6115-2021, 2021
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A theoretical model of grey seal seasonal abundance on Sable Island (SI) coupled with chlorophyll-a concentration [chl-a] measured by satellite revealed the impact of seal nitrogen fertilization on the surrounding waters of SI, Canada. The increase in seals from about 100 000 in 2003 to about 360 000 in 2018 during the breeding season is consistent with an increase in [chl-a] leeward of SI. The increase in seal abundance explains 8 % of the [chl-a] increase.
Julie Meilland, Michael Siccha, Maike Kaffenberger, Jelle Bijma, and Michal Kucera
Biogeosciences, 18, 5789–5809, https://doi.org/10.5194/bg-18-5789-2021, https://doi.org/10.5194/bg-18-5789-2021, 2021
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Planktonic foraminifera population dynamics has long been assumed to be controlled by synchronous reproduction and ontogenetic vertical migration (OVM). Due to contradictory observations, this concept became controversial. We here test it in the Atlantic ocean for four species of foraminifera representing the main clades. Our observations support the existence of synchronised reproduction and OVM but show that more than half of the population does not follow the canonical trajectory.
Federica Maggioni, Mireille Pujo-Pay, Jérome Aucan, Carlo Cerrano, Barbara Calcinai, Claude Payri, Francesca Benzoni, Yves Letourneur, and Riccardo Rodolfo-Metalpa
Biogeosciences, 18, 5117–5140, https://doi.org/10.5194/bg-18-5117-2021, https://doi.org/10.5194/bg-18-5117-2021, 2021
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Based on current experimental evidence, climate change will affect up to 90 % of coral reefs worldwide. The originality of this study arises from our recent discovery of an exceptional study site where environmental conditions (temperature, pH, and oxygen) are even worse than those forecasted for the future.
While these conditions are generally recognized as unfavorable for marine life, we found a rich and abundant coral reef thriving under such extreme environmental conditions.
Nisan Sariaslan and Martin R. Langer
Biogeosciences, 18, 4073–4090, https://doi.org/10.5194/bg-18-4073-2021, https://doi.org/10.5194/bg-18-4073-2021, 2021
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Analyses of foraminiferal assemblages from the Mamanguape mangrove estuary (northern Brazil) revealed highly diverse, species-rich, and structurally complex biotas. The atypical fauna resembles shallow-water offshore assemblages and are interpreted to be the result of highly saline ocean waters penetrating deep into the estuary. The findings contrast with previous studies, have implications for the fossil record, and provide novel perspectives for reconstructing mangrove environments.
Jutta E. Wollenburg, Jelle Bijma, Charlotte Cremer, Ulf Bickmeyer, and Zora Mila Colomba Zittier
Biogeosciences, 18, 3903–3915, https://doi.org/10.5194/bg-18-3903-2021, https://doi.org/10.5194/bg-18-3903-2021, 2021
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Cultured at in situ high-pressure conditions Cibicides and Cibicidoides taxa develop lasting ectoplasmic structures that cannot be retracted or resorbed. An ectoplasmic envelope surrounds their test and may protect the shell, e.g. versus carbonate aggressive bottom water conditions. Ectoplasmic roots likely anchor the specimens in areas of strong bottom water currents, trees enable them to elevate themselves above ground, and twigs stabilize and guide the retractable pseudopodial network.
Kumar Nimit
Biogeosciences, 18, 3631–3635, https://doi.org/10.5194/bg-18-3631-2021, https://doi.org/10.5194/bg-18-3631-2021, 2021
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The Indian Ocean Rim hosts many of the underdeveloped and emerging economies that depend on ocean resources for the livelihood of millions. Operational ocean information services cater to the requirements of resource managers and end-users to efficiently harness resources, mitigate threats and ensure safety. This paper outlines existing tools and explores the ongoing research that has the potential to convert the findings into operational services in the near- to midterm.
Finn Mielck, Rune Michaelis, H. Christian Hass, Sarah Hertel, Caroline Ganal, and Werner Armonies
Biogeosciences, 18, 3565–3577, https://doi.org/10.5194/bg-18-3565-2021, https://doi.org/10.5194/bg-18-3565-2021, 2021
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Marine sand mining is becoming more and more important to nourish fragile coastlines that face global change. We investigated the largest sand extraction site in the German Bight. The study reveals that after more than 35 years of mining, the excavation pits are still detectable on the seafloor while the sediment composition has largely changed. The organic communities living in and on the seafloor were strongly decimated, and no recovery is observable towards previous conditions.
France Van Wambeke, Elvira Pulido, Philippe Catala, Julie Dinasquet, Kahina Djaoudi, Anja Engel, Marc Garel, Sophie Guasco, Barbara Marie, Sandra Nunige, Vincent Taillandier, Birthe Zäncker, and Christian Tamburini
Biogeosciences, 18, 2301–2323, https://doi.org/10.5194/bg-18-2301-2021, https://doi.org/10.5194/bg-18-2301-2021, 2021
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Michaelis–Menten kinetics were determined for alkaline phosphatase, aminopeptidase and β-glucosidase in the Mediterranean Sea. Although the ectoenzymatic-hydrolysis contribution to heterotrophic prokaryotic needs was high in terms of N, it was low in terms of C. This study points out the biases in interpretation of the relative differences in activities among the three tested enzymes in regard to the choice of added concentrations of fluorogenic substrates.
Cited articles
Agarwal, S., Moon, W., and Wettlaufer, J. S.: Decadal to seasonal variability
of Arctic sea ice albedo, Geophys. Res. Lett., 38, L20504,
https://doi.org/10.1029/2011GL049109, 2011.
Albrecht, B. A.: Aerosols, cloud microphysics, and fractional cloudiness,
Science, 245, 1227–1231, 1989.
Aliabadi, A. A., Staebler, R. M., de Grandpré, J., Zadra, A., and
Vaillancourt, P. A.: Comparison of Estimated Atmospheric Boundary Layer
Mixing Height in the Arctic and Southern Great Plains under Statically Stable
Conditions: Experimental and Numerical Aspects, Atmos.-Ocean, 54, 60–74,
https://doi.org/10.1080/07055900.2015.1119100, 2016.
Asher, E. C., Dacey, J. W., Mills, M. M., Arrigo, K. R., and Tortell, P. D.:
High concentrations and turnover rates of DMS, DMSP and DMSO in Antarctic sea
ice, Geophys. Res. Lett., 38, L23609, https://doi.org/10.1029/2011GL049712, 2011.
Ayers, G. P. and Cainey, J. M.: The CLAW hypothesis: a review of the major
developments, Environ. Chem., 4, 366–374, 2008.
Bates, T. S., Lamb, B. K., Guenther, A., Dignon, J., and Stoiber, R. E.:
Sulfur emissions to the atmosphere from natural sources, J. Atmos. Chem., 14,
315–337, 1992.
Bates, T. S., Kiene, R. P., Wolfe, G. V., Matrai, P. A., Chavez, F. P., Buck,
K. R., Blomquist, B., W., and Cuhel, R. L.: The cycling of sulfur in surface
seawater of the northeast Pacific, J. Geophys. Res.-Oceans, 99, 7835–7843,
1994.
Bérard-Therriault, L., Poulin, M., and Bossé, L.: Guide
d'identification du phytoplancton marin de l'estuaire et du golfe du
Saint-Laurent, incluant également certains protozoaires, Publ. Spéc.
Can. Sci. Halieut. Aquat, 128, 1–387, 1999.
Bopp, L., Boucher, O., Aumont, O., Belviso, S., Dufresne, J. L., Pham, M.,
and Monfray, P.: Will marine dimethylsulfide emissions amplify or alleviate
global warming? A model study, Can. J. Fish. Aquat. Sci., 61, 826–835, 2004.
Browse, J., Carslaw, K. S., Arnold, S. R., Pringle, K., and Boucher, O.: The
scavenging processes controlling the seasonal cycle in Arctic sulphate and
black carbon aerosol, Atmos. Chem. Phys., 12, 6775–6798,
https://doi.org/10.5194/acp-12-6775-2012, 2012.
Burkart, J., Willis, M. D., Bozem, H., Thomas, J. L., Law, K., Hoor, P.,
Aliabadi, A. A., Köllner, F., Schneider, J., Herber, A., Abbatt, J. P.
D., and Leaitch, W. R.: Summertime observations of elevated levels of
ultrafine particles in the high Arctic marine boundary layer, Atmos. Chem.
Phys., 17, 5515–5535, https://doi.org/10.5194/acp-17-5515-2017, 2017.
Bursa, A.: Phytoplankton in coastal waters of the Arctic Ocean at Point
Barrow, Alaska, Arctic, 16, 239–262, 1963.
Carnat, G., Papakyriakou, T., Geilfus, N., Brabant, F., Delille, B.,
Vancoppenolle, M., Gilson, G., Zhou, J., and Tison, J.: Investigations on
physical and textural properties of Arctic first-year sea ice in the Amundsen
Gulf, Canada, November 2007–June 2008 (IPY-CFL system study), J. Glaciol.,
59, 819–837, 2013.
Carnat, G., Zhou, J., Papakyriakou, T., Delille, B., Goossens, T., Haskell,
T., Schoemann, V., Fripiat, F., Rintala, J.-M., and Tison, J.-L.: Physical
and biogeochemical controls on DMSP dynamics in ice shelf influenced fast ice
during a winter-spring and a spring-summer transitions, J. Geophys.
Res.-Oceans, 119, 2882–2905 2014.
Carslaw, K. S., Lee, L. A., Reddington, C. L., Pringle, K. J., Rap, A.,
Forster, P. M., Mann, G. W., Spracklen, D.V, Woodhouse, M. T., Regayre, L.
A., and Pierce, J. R.: Large contribution of natural aerosols to uncertainty
in indirect forcing. Nature, 503, 67–71, 2013.
Chang, R. Y. W., Sjostedt, S. J., Pierce, J. R., Papakyriakou, T. N.,
Scarratt, M. G., Michaud, S., Levasseur, M., Leaitch, W. R., and Abbatt, J.
P. D.: Relating atmospheric and oceanic DMS levels to particle nucleation
events in the Canadian Arctic, J. Geophys. Res.-Atmos. 116, D00S03,
https://doi.org/10.1029/2011JD015926, 2011.
Charette, J., Gosselin, M., Levasseur, M., Poulin, M., Blais, M., Tremblay,
J.-É., and Bélanger, S.: Characterization of melt pond algal
community and their photoprotection strategies in the Canadian Arctic, in
preparation, 2018.
Charlson, R. J., Lovelock, J. E., Andreae, M. O., and Warren, S. G.: Oceanic
phytoplankton, atmospheric sulphur, cloud albedo and climate, Nature, 326,
655–661, 1987.
Collins, D. B., Burkart, J., Chang, R. Y.-W., Lizotte, M., Boivin-Rioux, A.,
Blais, M., Mungall, E. L., Boyer, M., Irish, V. E., Massé, G., Kunkel,
D., Tremblay, J.-É., Papakyriakou, T., Bertram, A. K., Bozem, H.,
Gosselin, M., Levasseur, M., and Abbatt, J. P. D.: Frequent ultrafine
particle formation and growth in Canadian Arctic marine and coastal
environments, Atmos. Chem. Phys., 17, 13119–13138,
https://doi.org/10.5194/acp-17-13119-2017, 2017.
Cox, G. F. and Weeks, W. F.: Equations for determining the gas and brine
volumes in sea ice samples, J. Glaciol., 29, 306–316, 1983.
Croft, B., Martin, R. V., Leaitch, W. R., Tunved, P., Breider, T. J.,
D'Andrea, S. D., and Pierce, J. R.: Processes controlling the annual cycle of
Arctic aerosol number and size distributions, Atmos. Chem. Phys., 16,
3665–3682, https://doi.org/10.5194/acp-16-3665-2016, 2016.
Dacey, J. W. and Blough, N. V.: Hydroxide decomposition of
dimethylsulfoniopropionate to form dimethylsulfide, Geophys. Res. Lett., 14,
1246–1249, 1987.
Delille, B., Jourdain, B., Borges, A. V., Tison, J. L., and Delille, D.:
Biogas (CO2, O2, dimethylsulfide) dynamics in spring Antarctic fast
ice, Limnol. Oceanogr., 52, 1367–1379, 2007.
del Valle, D. A., Kieber, D. J., and Kiene, R. P.: Depth-dependent fate of
biologically-consumed dimethylsulfide in the Sargasso Sea, Mar. Chem., 103,
197–208, 2007.
del Valle, D. A. D., Kieber, D. J., Toole, D. A., Brinkley, J., and Kiene, R.
P.: Biological consumption of dimethylsulfide (DMS) and its importance in DMS
dynamics in the Ross Sea, Antarctica, Limnol. Oceanogr., 54, 785–798, 2009.
DiTullio, G. R. and Smith Jr., W. O.: Relationship between dimethylsulfide
and phytoplankton pigment concentrations in the Ross Sea, Antarctica,
Deep-Sea Res. Pt. I, 42, 873–892, 1995.
Ehn, J. K., Mundy, C. J., Barber, D. G., Hop, H., Rossnagel, A., and Stewart,
J.: Impact of horizontal spreading on light propagation in melt pond covered
seasonal sea ice in the Canadian Arctic, J. Geophys. Res., 116, C00G02,
https://doi.org/10.1029/2010JC006908, 2011.
Eicken, H.: Salinity profiles of Antarctic sea ice: Field data and model
results, J. Geophys. Res., 97, 15545–15557, 1992.
Eicken, H., Grenfell, T. C., Perovich, D. K., Richter-Menge, J. A., and Frey,
K.: Hydraulic controls of summer Arctic pack ice albedo, J. Geophys.
Res.-Oceans., 109, C08007, https://doi.org/10.1029/2003JC001989, 2004.
Elliott, A., Mundy, C. J., Gosselin, M., Poulin, M., Campbell, K., and Wang,
F.: Spring production of mycosporine-like amino acids and other UV-absorbing
compounds in sea ice-associated algae communities in the Canadian Arctic,
Mar. Ecol.-Prog. Ser., 541, 91–104, https://doi.org/10.3354/meps11540, 2015.
Fetterer, F. and Untersteiner, N.: Observations of melt ponds on Arctic sea
ice, J. Geophys. Res.-Oceans, 103, 24821–24835, https://doi.org/10.1029/98JC02034, 1998.
Fuse, H., Takimura, O., Kamimura, K., Murakami, K., Yamaoka, Y., and Murooka,
Y.: Transformation of dimethyl sulfide and related compounds by cultures and
cell extracts of marine phytoplankton, Biosci. Biotech. Bioch., 59,
1773–1775, 1995.
Galindo, V., Levasseur, M., Mundy, C. J., Gosselin, M., Tremblay, J.-E.,
Scarratt, M., Gratton, Y., Papakiriakou, T., Poulin, M., and Lizotte, M.:
Biological and physical processes influencing sea ice, under-ice algae, and
dimethylsulfoniopropionate during spring in the Canadian Arctic Archipelago,
J. Geophys. Res.-Oceans, 119, 3746–3766, https://doi.org/10.1002/2013JC009497, 2014.
Galindo, V., Levasseur, M., Scarratt, M., Mundy, C. J., Gosselin, M., Kiene,
R. P., Gourdal, M., and Lizotte, M.: Under-ice microbial
dimethylsulfoniopropionate metabolism during the melt period in the Canadian
Arctic Archipelago, Mar. Ecol.-Prog. Ser., 524, 39–53,
https://doi.org/10.3354/meps11144, 2015.
Gasol, J. M. and Del Giorgio, P. A.: Using flow cytometry for counting
natural planktonic bacteria and understanding the structure of planktonic
bacterial communities, Sci. Mar., 64, 197–224, 2000.
Ghiglione, J. F., Galand, P. E., Pommier, T., Pedrós-Alió, C., Maas,
E. W., Bakker, K., Bertilson, S., Kirchman, D. L., Lovejoy, C., Yager, P. L.
and Murray A. E.: Pole-to-pole biogeography of surface and deep marine
bacterial communities, P. Natl. Acad. Sci. USA, 109, 17633–17638, 2012.
Giamarelou, M., Eleftheriadis, K., Nyeki, S., Tunved, P., Torseth, K., and
Biskos, G.: Indirect evidence of the composition of nucleation mode
atmospheric particles in the high Arctic, J. Geophys. Res.-Atmos., 121,
965–975, 2016.
González, J. M., Kiene, R. P., and Moran, M. A.: Transformation of Sulfur
Compounds by an Abundant Lineage of Marine Bacteria in the α-Subclass
of the ClassProteobacteria, Appl. Environ. Microbiol., 65, 3810–3819, 1999.
Gourdal, M., Lizotte, M., and Levasseur, M.: Dimethylsulfide dynamics in
first-year sea ice melt ponds in the Canadian Arctic Archipelago, available
at: http://www.polardata.ca (last access: May 2018), last modification
October 2017.
Gow, A. J., Ackley, S. F., Weeks, W. F., and Govoni, J. W.: Physical and
structural characteristics of Antarctic sea ice, Ann. Glaciol., 3, 113–117,
1982.
Gow, A. J., Ackley, S. F., Buck, K. R., and Golden, K. M.: Physical and
structural characteristics of Weddell Sea pack ice, Tech. Rep. 87-14, CRREL
Cold Reg. Res. Eng. Lab., Hanover, N.H, 1987.
Gradinger, R. R., Meiners, K., Plumley, G., Zhang, Q., and Bluhm, B. A.:
Abundance and composition of the sea-ice meiofauna in off-shore pack ice of
the Beaufort Gyre in summer 2002 and 2003, Polar Biol., 28, 171–181,
https://doi.org/10.1007/s00300-004-0674-5, 2005.
Green, T. K. and Hatton, A. D.: The CLAW hypothesis: a new perspective on the
role of biogenic sulphur in the regulation of global climate, Oceanogr. Mar.
Biol., 52, 315–336, 2014.
Gunson, J. R., Spall, S. A., Anderson, T. R., Jones, A., Totterdell, I. J.,
and Woodage, M. J.: Climate sensitivity to ocean dimethylsulphide emissions,
Geophys. Res. Lett., 33, L07701, https://doi.org/10.1029/2005GL024982, 2006.
Haas, C., Thomas, D. N., and Bareiss, J.: Surface properties and processes of
perennial Antarctic sea ice in summer, J. Glaciol., 47, 613–625, 2001.
Hatton, A. D., Darroch, L., and Malin, G.: The role of dimethylsulphoxide in
the marine biogeochemical cycle of dimethylsulphide, Oceanogr. Mar. Biol.,
42, 29–56, 2004.
Hatton, A. D., Shenoy, D. M., Hart, M. C., Mogg, A., and Green, D. H.:
Metabolism of DMSP, DMS and DMSO by the cultivable bacterial community
associated with the DMSP-producing dinoflagellate Scrippsiella trochoidea,
Biogeochemistry, 110, 131–146, https://doi.org/10.1007/s10533-012-9702-7, 2012.
Holm-Hansen, O., Lorenzen, C. J., Holmes, R. W., and Strickland, J. D.:
Fluorometric determination of chlorophyll ICES, J. Mar. Sci., 30, 3–15,
1965.
Hunke, E. C., Notz, D., Turner, A. K., and Vancoppenolle, M.: The multiphase
physics of sea ice: a review for model developers, The Cryosphere, 5,
989–1009, https://doi.org/10.5194/tc-5-989-2011, 2011.
Jardon, F. P., Vivier, F., Vancoppenolle, M., Lourenço, A.,
Bouruet-Aubertot, P., and Cuypers, Y.: Full-depth desalination of warm sea
ice, J. Geophys. Res.-Oceans., 118, 435–447, https://doi.org/10.1029/2012JC007962, 2013.
Jung, J., Min, J. O., Yang, E. J., Lee, S. H., and Kang, S. H.: Nutrients in
melt ponds and snows on Arctic sea ice during 2014 sea ice camp, The 21st
International Symposium on Polar Sciences, 19–20 May 2015, KOPRI, Incheon.,
2015.
Karsten, U., Kück, K., Vogt, C., and Kirst, G. O. (Eds.):
Dimethylsulfoniopropionate production in phototrophic organisms and its
physiological functions as a cryoprotectant, in: Biological and environmental
chemistry of DMSP and related sulfonium compounds, Springer, New York, USA,
1996.
Keller, M. D., Bellows, W. K., and Guillard, R. R: Dimethyl sulfide
production in marine phytoplankton: the importance of species composition and
cell size, Biol. Oceanogr, 6, 375–382, 1989.
Kieber, D. J., Jiao, J., Kiene, R. P., and Bates, T. S.: Impact of
dimethylsulfide photochemistry on methyl sulfur cycling in the equatorial
Pacific Ocean, J. Geophys. Res., 101, 3715–3722, https://doi.org/10.1029/95JC03624,
1996.
Kiene, R. P. and Slezak, D.: Low dissolved DMSP concentrations in seawater
revealed by small-volume gravity filtration and dialysis sampling, Limnol.
Oceanogr.-Meth., 4, 80–95, 2006.
Kiene, R. P., Linn, L. J., and Bruton, J. A.: New and important roles for
DMSP in marine microbial communities, J. Sea Res., 43, 209–224, 2000.
Kirst, G. O., Thiel, C., Wolff, H., Nothnagel, J., Wanzek, M., and Ulmke, R.:
Dimethylsulfoniopropionate (DMSP) in icealgae and its possible biological
role, Mar. Chem., 35, 381–388, https://doi.org/10.1016/S0304-4203(09)90030-5, 1991.
Korhonen, H., Carslaw, K. S., Forster, P. M., Mikkonen, S., Gordon, N. D.,
and Kokkola, H.: Aerosol climate feedback due to decadal increases in
Southern Hemisphere wind speeds, Geophys. Res. Lett., 37, L02805,
https://doi.org/10.1029/2009GL041320, 2010.
Kwok, R., Cunningham, G. F., Wensnahan, M., Rigor, I., Zwally, H. J., and Yi,
D.: Thinning and volume loss of the Arctic Ocean sea ice cover: 2003–2008:
J. Geophys. Res.-Oceans, 114, C07005, https://doi.org/10.1029/2009JC005312, 2009.
Lana, A., Bell, T. G., Simó, R., Vallina, S. M., Ballabrera-Poy, J.,
Kettle, A. J., Dachs, J., Bopp, L., Saltzman, E. S., Stefels, J., Johnson, J.
E., and Liss, P. S.: An updated climatology of surface dimethlysulfide
concentrations and emission fluxes in the global ocean, Global Biogeochem.
Cy., 25, GB1004, https://doi.org/10.1029/2010GB003850, 2011.
Lebaron, P., Servais, P., Agogué, H., Courties, C., and Joux, F.: Does
the high nucleic acid content of individual bacterial cells allow us to
discriminate between active cells and inactive cells in aquatic systems?,
Appl. Environ. Microbiol., 67, 1775–1782, 2001.
Leck, C. and Bågander, L. E.: Determination of reduced sulfur compounds
in aqueous solutions using gas chromatography-flame photometric detection,
Anal. Chem., 60, 1680–1683, https://doi.org/10.1021/ac00168a011, 1988.
Leck, C. and Persson, C.: The central Arctic Ocean as a source of dimethyl
sulfide: seasonal variability in relation to biological activity, Tellus B,
48, 156–177, 1996.
Lee, P. A. and De Mora, S. J.: Intracellular dimethylsulfoxide (DMSO) in
unicellular marine algae: speculations on its origin and possible biological
role, J. Phycol., 35, 8–18, 1999.
Lee, P. A., De Mora, S. J., Gosselin, M., Levasseur, M., Bouillon, R. C.,
Nozais, C., and Michel, C.: Particulate dimethylsulfoxide in Arctic sea-ice
algal communities: The cryoprotectant hypothesis revisited, J. Phycol., 37,
488–499, 2001.
Lee, S. H., Stockwell, D. A., Joo, H.-M., Son, Y. B., Kang, C.-K., and
Whitledge, T. E.: Phytoplankton production from melting ponds on Arctic sea
ice, J. Geophys. Res., 117, C04030, https://doi.org/10.1029/2011JC007717, 2012.
Legendre, L., Ackley, S. F., Dieckmann, G. S., Gulliksen, B., Horner, R.,
Hoshiai, T., Melnikov, I. A., Reeburgh, W. S., Spindler, M., and Sullivan, C.
W.: Ecology of sea ice biota, Polar Biol., 12, 429–444, 1992.
Leppäranta, M. and Manninen, T.: The brine and gas content of sea ice
with attention to low salinities and high temperatures, Internal Rep., 1–14,
Finn. Inst. of Mar. Res., Helsinki, 1988.
Levasseur, M.: Impact of Arctic meltdown on the microbial cycling of sulphur,
Nat. Geosci., 6, 691–700, 2013.
Levasseur, M., Gosselin, M., and Michaud, S.: A new source of dimethylsulfide
(DMS) for the arctic atmosphere: ice diatoms, Mar. Biol., 121, 381–387,
1994.
Lizotte, M., Levasseur, M., Michaud, S., Scarratt, M. G., Merzouk, A.,
Gosselin, M., and Kiene, R. P.: Macroscale patterns of the biological cycling
of dimethylsulfoniopropionate (DMSP) and dimethylsulfide (DMS) in the
Northwest Atlantic, Biogeochemistry, 110, 183–200,
https://doi.org/10.1007/s10533-011-9698-4, 2012.
Locarnini, S. J. P., Turner, S. M., and Liss, P. S.: The distribution of
dimethylsulfide, DMS, and dimethylsulfoniopropionate, DMSP, in waters off the
Western Coast of Ireland, Cont, Shelf Res., 18, 1455–1473, 1998.
Luce, M., Levasseur, M., Scarratt, M. G., Michaud, S., Royer, S. J., Kiene,
R., Lovejoy, C., Gosselin, M., Poulin, M., Gratton, Y., and Lizotte, M.:
Distribution and microbial metabolism of dimethylsulfoniopropionate and
dimethylsulfide during the 2007 Arctic ice minimum, J. Geophys. Res.-Oceans,
116, C00G06, https://doi.org/10.1029/2010JC006914, 2011.
Lund, J. W. G., Kipling, C., and Le Cren, E. D.: The inverted microscope
method of estimating algal numbers and the statistical basis of estimations
by counting, Hydrobiologia, 11, 143–170, 1958.
Lüthje, M., Feltham, D. L., Taylor, P. D., and Worster, M. G.: Modeling
the summertime evolution of sea-ice melt ponds, J. Geophys. Res.-Oceans, 111,
C02001, https://doi.org/10.1029/2004JC002818, 2006.
Lyon, B. R., Bennett-Mintz, J. M., Lee, P. A., Janech, M. G., and DiTullio,
G. R.: Role of dimethylsulfoniopropionate as an osmoprotectant following
gradual salinity shifts in the sea-ice diatom Fragilariopsis cylindrus,
Environ. Chem., 13, 181–194, 2016.
Malin, G., Turner, S., Liss, P., Holligan, P., and Harbour, D.:
Dimethylsulphide and dimethylsulphoniopropionate in the Northeast Atlantic
during the summer coccolithophore bloom, Deep-Sea Res. Pt. I, 40, 1487–1508,
https://doi.org/10.1016/0967-0637(93)90125-M, 1993.
Marie, D., Simon, N., and Vaulot, D. (Eds.): Phytoplankton cell counting by
flow cytometry. Andersen R., Algal culturing techniques, Academic Press,
London, UK, 2005.
Massom, R. A., Stammerjohn, S. E., Smith, R. C., Pook, M. J., Iannuzzi, R.
A., Adams, N., Martinson, D. G., Vernet, M., Fraser, W. R., Quetin, L. B.,
Ross, R. M., Massom, Y., and Krouse, R. H.: Extreme anomalous atmospheric
circulation in the West Antarctic Peninsula region in austral spring and
summer 2001/02, and its profound impact on sea ice and biota, J. Climate, 19,
3544–3571, 2006.
Matrai, P. A. and Vernet, M.: Dynamics of the vernal bloom in the marginal
ice zone of the Barents Sea: Dimethyl sulfide and dimethylsulfoniopropionate
budgets, J. Geophys. Res.-Oceans, 102, 22965–22979, 1997.
McArdle, N. C. and Liss, P. S.: Isotopes and atmospheric sulphur, Atmos.
Environ., 29, 2553–2556, https://doi.org/10.1016/1352-2310(95)00188-5, 1995.
Miller, L. A., Fripiat, F., Else, B. G. T., Bowman, J. S., Brown, K. A.,
Collins, R. E., Ewert, M, Fransson, A., Gosselin, M., Lannuzel, D., Meiners,
K. M., Michel, C., Nishioka, J., Nomura, D., Papadimitriou, S., Russell, L.
M., Sørensen, L. L., Thomas, D. N., Tison, J.-L., van Leeuwe, M. A.,
Vancoppenolle, M., Wolff, E. W., and Zhou J.: Methods for biogeochemical
studies of sea ice: The state of the art, caveats, and recommendations, Elem.
Sci. Anth., 3, 53, https://doi.org/10.12952/journal.elementa.000038, 2015.
Mungall, E. L., Croft, B., Lizotte, M., Thomas, J. L., Murphy, J. G.,
Levasseur, M., Martin, R. V., Wentzell, J. J. B., Liggio, J., and Abbatt, J.
P. D.: Dimethyl sulfide in the summertime Arctic atmosphere: measurements and
source sensitivity simulations, Atmos. Chem. Phys., 16, 6665–6680,
https://doi.org/10.5194/acp-16-6665-2016, 2016.
Niki, T., Kunugi, M., and Otsuki, A.: DMSP-lyase activity in five marine
phytoplankton species: its potential importance in DMS production, Mar.
Biol., 136, 759–764, 2000.
Nomura, D., Koga, S., Kasamatsu, N., Shinagawa, H., Simizu, D., Wada, M., and
Fukuchi, M.: Direct measurements of DMS flux from Antarctic fast sea ice to
the atmosphere by a chamber technique, J. Geophys. Res.-Oceans, 117, 2012.
Pandey, S. K. and Kim, K. H.: A review of methods for the determination of
reduced sulfur compounds (RSCs) in air, Environ. Sci. Technol., 43,
3020–3029, https://doi.org/10.1021/es803272f, 2009.
Parsons, T. R., Maita, Y., and Lalli, C. M.: A manual of biological and
chemical methods for seawater analysis, Publ. Pergamon Press, Oxford, 1984.
Perovich, D. K., Richter-Menge, J. A., Jones, K. F., Light, B., Elder, B. C.,
Polashenski, C., Laroche, D., Markus, T., and Lindsay, R.: Arctic sea-ice
melt in 2008 and the role of solar heating, Ann. Glaciol., 52, 355–359,
https://doi.org/10.3189/172756411795931714, 2011.
Petrich, C. and Eicken H.: Growth, structure and properties of sea ice, in:
Sea Ice, edited by: Thomas, D. N. and Dieckmann, G. S., 23–77, Blackwell,
Oxford, UK, 2010.
Pio, C. A., Castro, L. M., Cerqueira, M. A., Santos, I. M., Belchior, F., and
Salgueiro, M. L.: Source assessment of particulate air pollutants measured at
the southwest European coast, Atmos. Environ., 30, 3309–3320,
https://doi.org/10.1016/1352-2310(96)00058-1, 1996.
Polashenski, C., Perovich, D., and Courville, Z.: The mechanisms of sea ice
melt pond formation and evolution, J. Geophys. Res.-Oceans, 117, C01001,
https://doi.org/10.1029/2011JC007231, 2012.
Polashenski, C., Golden, K. M., Perovich, D. K., Skyllingstad, E., Arnsten,
A., Stwertka, C., and Wright, N.: Percolation blockage: A process that
enables melt pond formation on first year Arctic sea ice, J. Geophys.
Res.-Oceans, 122, 413–440, 2017.
Quinn, P. K. and Bates, T. S.: The case against climate regulation via
oceanic phytoplankton sulphur emissions, Nature, 480, 51–56,
https://doi.org/10.1038/nature10580, 2011.
R Core Team: A language and environment for statistical computing, R
Foundation for Statistical Computing, Vienna, Austria, available at:
https://www.R-project.org/ (last access: November 2017), 2016.
Rempillo, O., Seguin, A. M., Norman, A.-L., Scarratt, M., Michaud, S., Chang,
R., Sjostedt, S., Abbatt, J., Else, B., Papakyriakou, T., Sharma, S., Grasby,
S., and Levasseur, M.: Dimethyl sulfide air-sea fluxes and biogenic sulfur as
a source of new aerosols in the Arctic fall, J. Geophys. Res., 116, D00S04,
https://doi.org/10.1029/2011JD016336, 2011.
Rösel, A., Kaleschke, L., and Birnbaum, G.: Melt ponds on Arctic sea ice
determined from MODIS satellite data using an artificial neural network, The
Cryosphere, 6, 431–446, https://doi.org/10.5194/tc-6-431-2012, 2012.
Royer, S. J., Galí, M., Mahajan, A. S., Ross, O. N., Pérez, G. L.,
Saltzman, E. S., and Simó, R.: A high-resolution time-depth view of
dimethylsulphide cycling in the surface sea, Sci. Rep.-UK., 6, 32325,
https://doi.org/10.1038/srep32325, 2016.
Scarratt, M. G., Levasseur, M., Schultes, S., Michaud, S., Cantin, G.,
Vezina, A., and De Mora, S. J.: Production and consumption of dimethylsulfide
(DMS) in North Atlantic waters, Mar. Ecol.-Prog. Ser., 204, 13–26,
https://doi.org/10.3354/meps204013, 2000.
Sharma, S., Barrie, L. A., Plummer, D., McConnell, J. C., Brickell, P. C.,
Levasseur, M., Gosselin, M., and Bates, T. S.: Flux estimation of oceanic
dimethyl sulfide around North America, J. Geophys. Res., 104, 21327–21342,
1999.
Simó, R.: Production of atmospheric sulfur by oceanic plankton:
biogeochemical, ecological and evolutionary links, Trends Ecol. Evol., 16,
287–294, 2001.
Simó, R. and Pedrós-Alió, C.: Role of vertical mixing in
controlling the oceanic production of dimethyl sulphide, Nature, 402,
396–399, 1999a.
Simó, R. and Pedrós-Alió, C.: Short-term variability in the open
ocean cycle of dimethylsulfide, Global Biogeochem. Cy., 13, 1173–1181,
1999b.
Simó, R., Pedrós-Alió, C., Malin, G., and Grimalt, J. O.:
Biological turnover of DMS, DMSP and DMSO in contrasting open-sea waters,
Mar. Ecol.-Prog. Ser., 203, 1–11, 2000.
Skyllingstad, E. D. and Paulson, C. A.: A numerical study of melt ponds, J.
Geophys. Res., 112, C08015, https://doi.org/10.1029/2006JC003729, 2007.
Sokal, R. R. and Rohlf, F. J. (Eds): Biometry: the principles and practice of
statistics in biological research, WH Freeman and Co., New York, USA, 1995.
Sørensen, H. L., Thamdrup, B., Jeppesen, E., Rysgaard, S., and Glud, R.
N.: Nutrient availability limits biological production in Arctic sea ice melt
ponds, Polar Biol., 40, 1593–1606, https://doi.org/10.1007/s00300-017-2082-7, 2017.
Spiese, C. E., Kieber, D. J., Nomura, C. T., and Kiene, R. P.: Reduction of
dimethylsulfoxide to dimethylsulfide by marine phytoplankton, Limnol.
Oceanogr., 54, 560–570, 2009.
Stefels, J.: Physiological aspects of the production and conversion of DMSP
in marine algae and higher plants, J. Sea Res., 43, 183–197, 2000.
Stefels, J., Steinke, M., Turner, S., Malin, G., and Belviso, S.:
Environmental constraints on the production and removal of the climatically
active gas dimethylsulphide (DMS) and implications for ecosystem modelling,
Biogeochemistry, 83, 245–275, https://doi.org/10.1007/s10533-007-9091-5, 2007.
Stohl, A.: Characteristics of atmospheric transport into the Arctic
troposphere, J. Geophys. Res.-Atmos., 111, D11306, https://doi.org/10.1029/2005JD006888,
2006.
Stroeve, J. C., Markus, T., Boisvert, L., Miller, J., and Barrett, A.:
Changes in Arctic melt season and implications for sea ice loss, Geophys.
Res. Lett., 41, 1216–1225, https://doi.org/10.1002/2013GL058951, 2014.
Sunda, W. K. D. J., Kieber, D. J., Kiene, R. P., and Huntsman, S.: An
antioxidant function for DMSP and DMS in marine algae, Nature, 418, 317–320,
2002.
Thomas, M. A., Suntharalingam, P., Pozzoli, L., Rast, S., Devasthale, A.,
Kloster, S., Feichter, J., and Lenton, T. M.: Quantification of DMS
aerosol-cloud-climate interactions using the ECHAM5-HAMMOZ model in a current
climate scenario, Atmos. Chem. Phys., 10, 7425–7438,
https://doi.org/10.5194/acp-10-7425-2010, 2010.
Throndsen, J., Hasle, G. R., and Tangen, K. (Eds.): Phytoplankton of
Norwegian coastal waters, Almater Forlag AS, Oslo, Norway, 2003.
Tison, J. L., Brabant, F., Dumont, I., and Stefels, J.: High-resolution
dimethyl sulfide and dimethylsulfoniopropionate time series profiles in
decaying summer first-year sea ice at Ice Station Polarstern, western Weddell
Sea, Antarctica, J. Geophys. Res.-Biogeo., 115, G04044,
https://doi.org/10.1029/2010JG001427, 2010.
Tomas, C. R. and Hasle, G. R. (Eds.): Identifying marine phytoplankton,
Academic Press, New York, USA, 1997.
Trevena, A. J. and Jones, G. B.: Dimethylsulphide and
dimethylsulphoniopropionate in Antarctic sea ice and their release during sea
ice melting, Mar. Chem., 98, 210–222, 2006.
Trevena, A. J., Jones, G. B., Wright, S. W., and Van den Enden, R. L.:
Profiles of dimethylsulphoniopropionate (DMSP), algal pigments, nutrients,
and salinity in the fast ice of Prydz Bay, Antarctica, J. Geophys.
Res.-Oceans, 108, 3145, https://doi.org/10.1029/2002JC001369, 2003.
Turner, S. M., Nightingale, P. D., Broadgate, W., and Liss, P. S.: The
distribution of dimethyl sulphide and dimethylsulphoniopropionate in
Antarctic waters and sea ice, Deep-Sea Res. Pt. II, 42, 1059–1080, 1995.
Twomey, S.: Pollution and the planetary albedo, Atmos. Environ, 8,
1251–1256, https://doi.org/10.1016/0004-6981(74)90004-3, 1974.
van Bergeijk, S. A. and Stal, L. J.: The role of oxygenic phototrophic
microorganisms in production and conversion of dimethylsulfoniopropioniate
and dimethylsulfide in microbial mats, In Biological and Environmental
Chemistry of DMSP and Related Sulfonium Compounds, 369–379, Springer,
Boston, MA, 1996.
Vancoppenolle, M., Bitz, C. M., and Fichefet, T., Summer landfast sea ice
desalination at point barrow: Model and observations, J. Geophys. Res., 112,
C04022, https://doi.org/10.1029/2006JC003493, 2007.
Vancoppenolle, M., Goosse, H., De Montety, A., Fichefet, T., Tremblay, B.,
and Tison, J. L.: Modeling brine and nutrient dynamics in Antarctic sea ice:
The case of dissolved silica, J. Geophys. Res.-Oceans, 115, C02005,
https://doi.org/10.1029/2009JC00536, 2010.
Vila-Costa, M., Simó, R., Harada, H., Gasol, J. M., Slezak, D., and
Kiene, R. P.: Dimethylsulfoniopropionate uptake by marine phytoplankton,
Science, 314, 652–654, https://doi.org/10.1126/science.1131043, 2006.
Vila-Costa, M., Simó, R., Alonso-Sáez, L., and Pedrós-Alió,
C.: Number and phylogenetic affiliation of bacteria assimilating
dimethylsulfoniopropionate and leucine in the ice-covered coastal Arctic
Ocean, J. Marine Syst., 74, 957–963, 2008.
Vogt, C., Rabenstein, A., Rethmeier, J., and Fischer, U.: Dimethyl sulphoxide
reduction with reduced sulphur compounds as electron donors by anoxygenic
phototrophic bacteria, Microbiology, 143, 767–773, 1997.
Welsh, D. T.: Ecological significance of compatible solute accumulation by
micro-organisms: from single cells to global climate, FEMS Microbiol. Rev.,
24, 263–290, 2000.
Weeks, W. F. and Ackley, S. F.: The growth, structure, and properties of sea
ice, in: The geophysics of sea ice, 9–164, Springer, Boston, MA, 1986.
Willis, M. D., Burkart, J., Thomas, J. L., Köllner, F., Schneider, J.,
Bozem, H., Hoor, P. M., Aliabadi, A. A., Schulz, H., Herber, A. B., Leaitch,
W. R., and Abbatt, J. P. D.: Growth of nucleation mode particles in the
summertime Arctic: a case study, Atmos. Chem. Phys., 16, 7663–7679,
https://doi.org/10.5194/acp-16-7663-2016, 2016.
Wolfe, G. V., Levasseur, M., Cantin, G., and Michaud, S.: Microbial
consumption and production of dimethyl sulfide (DMS) in the Labrador Sea,
Aquat. Microb. Ecol., 18, 197–205, https://doi.org/10.3354/ame018197, 1999.
Woodhouse, M. T., Carslaw, K. S., Mann, G. W., Vallina, S. M., Vogt, M.,
Halloran, P. R., and Boucher, O.: Low sensitivity of cloud condensation
nuclei to changes in the sea-air flux of dimethyl-sulphide, Atmos. Chem.
Phys., 10, 7545–7559, https://doi.org/10.5194/acp-10-7545-2010, 2010.
Zemmelink, H. J., Gieskes, W. W. C., Klaassen, W., De Groot, H. W., De Baar,
H. J. W., Dacey, J. W. H., Hintsa, E. J., and McGillis, W. R.: Simultaneous
use of relaxed eddy accumulation and gradient flux techniques for the
measurement of sea-to-air exchange of dimethyl sulphide, Atmos. Environ., 36,
5709–5717, https://doi.org/10.1016/S1352-2310(02)00577-0, 2002.
Zemmelink, H. J., Dacey, J. W., Houghton, L., Hintsa, E. J., and Liss, P. S.:
Dimethylsulfide emissions over the multi-year ice of the western Weddell Sea,
Geophys. Res. Lett., 35, L06603, https://doi.org/10.1029/2007GL031847, 2008.
Short summary
Melt ponds (MP) forming over first year ice (FYI) represent a potential source of the climate-relevant gas dimethylsulfide (DMS) to the atmosphere. Nine MP were sampled in the Canadian Arctic Archipelago. DMS concentrations reaching up to 6 nmol L−1, twice the world's surface oceanic mean, were measured. Seawater intrusion appeared to seed MP with DMS-producing communities. DMS flux from Arctic MP is expected to increase in response to the expanding areal and temporal trends of MP on FYI.
Melt ponds (MP) forming over first year ice (FYI) represent a potential source of the...
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