Articles | Volume 10, issue 1
https://doi.org/10.5194/bg-10-67-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Special issue:
https://doi.org/10.5194/bg-10-67-2013
© Author(s) 2013. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
08 Jan 2013
Research article |
| 08 Jan 2013
Sediment community responses to marine vs. terrigenous organic matter in a submarine canyon
W. R. Hunter
Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, AB41 6AA, UK
Present Address: Department of Limnology, Universität Wien, Althanstrasse 14, 1090 Vienna, Austria
A. Jamieson
Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, AB41 6AA, UK
V. A. I. Huvenne
National Oceanography Centre, Southampton, European Way, Southampton, SO14 3ZH, UK
U. Witte
Oceanlab, University of Aberdeen, Newburgh, Aberdeenshire, AB41 6AA, UK
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In this paper, we present the first edition of a global database compiling previously published and unpublished measurements of dissolved organic matter (DOM) collected in coastal waters (CoastDOM v1). Overall, the CoastDOM v1 dataset will be useful to identify global spatial and temporal patterns and to facilitate reuse in studies aimed at better characterizing local biogeochemical processes and identifying a baseline for modelling future changes in coastal waters.
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The first benthic Foraminifera having a composite test (i.e. shell) made of opal coating the inside of the calcitic layer is reported. Based on the morphology and composition of this novel opal layer using comprehensive techniques, we concluded that this layer is precipitated by the Foraminifera itself. We further discuss the potential functions of this composite test and implications for palaeoceanographic reconstructions and the silica cycle at global scale.
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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.
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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.
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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
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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.
Oscar E. Romero, Simon Ramondenc, and Gerhard Fischer
Biogeosciences, 18, 1873–1891, https://doi.org/10.5194/bg-18-1873-2021, https://doi.org/10.5194/bg-18-1873-2021, 2021
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Upwelling intensity along NW Africa varies on the interannual to decadal timescale. Understanding its changes is key for the prediction of future changes of CO2 sequestration in the northeastern Atlantic. Based on a multiyear (1988–2009) sediment trap experiment at the site CBmeso, fluxes and the species composition of the diatom assemblage are presented. Our data help in establishing the scientific basis for forecasting and modeling future states of this ecosystem and its decadal changes.
Katharine T. Bigham, Ashley A. Rowden, Daniel Leduc, and David A. Bowden
Biogeosciences, 18, 1893–1908, https://doi.org/10.5194/bg-18-1893-2021, https://doi.org/10.5194/bg-18-1893-2021, 2021
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Turbidity flows – underwater avalanches – are large-scale physical disturbances believed to have profound impacts on productivity and diversity of benthic communities in the deep sea. We reviewed published studies and found that current evidence for changes in productivity is ambiguous at best, but the influence on regional and local diversity is clearer. We suggest study design criteria that may lead to a better understanding of large-scale disturbance effects on deep-sea benthos.
Phillip Williamson, Hans-Otto Pörtner, Steve Widdicombe, and Jean-Pierre Gattuso
Biogeosciences, 18, 1787–1792, https://doi.org/10.5194/bg-18-1787-2021, https://doi.org/10.5194/bg-18-1787-2021, 2021
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The reliability of ocean acidification research was challenged in early 2020 when a high-profile paper failed to corroborate previously observed impacts of high CO2 on the behaviour of coral reef fish. We now know the reason why: the
replicatedstudies differed in many ways. Open-minded and collaborative assessment of all research results, both negative and positive, remains the best way to develop process-based understanding of the impacts of ocean acidification on marine organisms.
Michael Lintner, Bianca Lintner, Wolfgang Wanek, Nina Keul, and Petra Heinz
Biogeosciences, 18, 1395–1406, https://doi.org/10.5194/bg-18-1395-2021, https://doi.org/10.5194/bg-18-1395-2021, 2021
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Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changes in salinity immediately influence the foraminiferal activity. Also the light regime has a significant impact on carbon or nitrogen processing in foraminifera which contain no kleptoplasts.
Michele Casini, Martin Hansson, Alessandro Orio, and Karin Limburg
Biogeosciences, 18, 1321–1331, https://doi.org/10.5194/bg-18-1321-2021, https://doi.org/10.5194/bg-18-1321-2021, 2021
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In the past 20 years the condition of the eastern Baltic cod has dropped, with large implications for the fishery. Our results show that simultaneously the cod population has moved deeper while low-oxygenated waters detrimental for cod growth have become shallower. Cod have thus dwelled more in detrimental waters, explaining the drop in its condition. This study, using long-term fish and hydrological monitoring data, evidences the impact of deoxygenation on fish biology and fishing.
Elizabeth D. LaBone, Kenneth A. Rose, Dubravko Justic, Haosheng Huang, and Lixia Wang
Biogeosciences, 18, 487–507, https://doi.org/10.5194/bg-18-487-2021, https://doi.org/10.5194/bg-18-487-2021, 2021
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The hypoxic zone is an area of low dissolved oxygen (DO) in the Gulf of Mexico. Fish can be killed by exposure to hypoxia and can be negatively impacted by exposure to low, nonlethal DO concentrations (sublethal DO). We found that high sublethal area resulted in higher exposure and DO variability had a small effect on exposure. There was a large variation in exposure among individuals, which when combined with spatial variability of DO, can result in an underestimation of exposure when averaged.
Svenja Reents, Peter Mueller, Hao Tang, Kai Jensen, and Stefanie Nolte
Biogeosciences, 18, 403–411, https://doi.org/10.5194/bg-18-403-2021, https://doi.org/10.5194/bg-18-403-2021, 2021
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By conducting a flooding experiment with two genotypes of the salt-marsh grass Elymus athericus, we show considerable differences in biomass response to flooding within the same species. As biomass production plays a major role in sedimentation processes and thereby salt-marsh accretion, we emphasise the importance of taking intraspecific differences into account when evaluating ecosystem resilience to accelerated sea level rise.
Cara Nissen and Meike Vogt
Biogeosciences, 18, 251–283, https://doi.org/10.5194/bg-18-251-2021, https://doi.org/10.5194/bg-18-251-2021, 2021
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Using a regional Southern Ocean ecosystem model, we find that the relative importance of Phaeocystis and diatoms at high latitudes is controlled by iron and temperature variability, with light levels controlling the seasonal succession in coastal areas. Yet, biomass losses via aggregation and grazing matter as well. We show that the seasonal succession of Phaeocystis and diatoms impacts the seasonality of carbon export fluxes with ramifications for nutrient cycling and food web dynamics.
Jiangtao Li, Lingyuan Gu, Shijie Bai, Jie Wang, Lei Su, Bingbing Wei, Li Zhang, and Jiasong Fang
Biogeosciences, 18, 113–133, https://doi.org/10.5194/bg-18-113-2021, https://doi.org/10.5194/bg-18-113-2021, 2021
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Few studies have focused on the particle-attached (PA) and free-living (FL) microbes of the deep ocean. Here we determined PA and FL microbial communities along depth profiles of the SCS. PA and FL fractions accommodated divergent microbial compositions, and most of them are potentially generalists with PA and FL dual lifestyles. A potential vertical connectivity between surface-specific microbes and those in the deep ocean was indicated, likely through microbial attachment to sinking particles.
Cited articles
Aberle, N. and Witte, U.: Deep-sea macrofauna exposed to a simulated sedimentation event in the abyssal NE Atlantic: in situ pulse-chase experiments using 13C-labelled phytodetritus, Mar. Ecol. Prog. Ser., 251, 37–47, 2003.
Anderson, M. J.: Distance-based tests for homogeneity of multivariate dispersions, Biometrics, 62, 245–253, 2006.
Anderson, M. J.: A new method for non-parametric multivariate analysis of variance, Aust. Ecol., 26, 32–46, 2011.
Arzola, R. G., Wynn, R. B., Lastras, G., Masson, D. G., and Weaver, P. P. E.: Sedimentary features and processes in the Nazareì and Setuìbal submarine canyons, west Iberian margin, Mar. Geol., 250, 64–88, 2008.
Billett, D. S. M., Lampitt, R. S., Rice, A. L., and Mantoura, R. F. C.: Seasonal Sedimentation of Phytoplankton to the Deep-Sea Benthos, Nature, 302, 520–522, 1983.
Boetius, A. and Lochte, K.: Regulation of microbial enzymatic degradation of organic matter in deep-sea sediments, Mar. Ecol. Prog. Ser., 104, 299–307, 1994.
Boetius, A. and Lochte, K.: Effects of organic enrichment on hydrolytic potentials and growth of bacteria in deep-sea sediments, Mar. Ecol. Prog. Ser., 140, 239–250, 1996.
Boschker, H. T. S. and Middelburg, J. J.: Stable isotopes and biomarkers in microbial ecology, FEMS Microbiol. Ecol., 40, 85–95, 2002.
Boschker, H. T. S., Nold, S. C., Wellsbury, P., Bos, D., de Graaf, W., Pel, R., Parkes, R. J., and Cappenberg, T. E.: Direct linking of microbial populations to specific biogeochemical processes by 13C-labelling of biomarkers, Nature, 392, 801–805, 1998.
Brinch-Iversen, J. and King, G. M.: Effects of substrate concentration, growth state, and oxygen availability on relationships among bacterial carbon, nitrogen and phospholipid phosphorus content, FEMS Microbiol. Lett., 74, 345–355, 1990.
Buhring, S. I., Lampadariou, N., Moodley, L., Tselepides, A., and Witte, U.: Benthic microbial and whole-community responses to different amounts of 13C-enriched algae: In situ experiments in the deep Cretan Sea (Eastern Mediterranean), Limnol. Oceanogr., 51, 157–165, 2006.
Canals, M., Puig, P., De Madron, X. D., Heussner, S., Palanques, A., and Fabres, J.: Flushing submarine canyons, Nature, 444, 354–357, 2006.
Clarke, K. R.: Non-parametric multivariate analyses of changes in community structure, Aust. J. Ecol., 18, 117–143, 1993.
Crossman, Z. M., Abraham, F., and Evershed, R. P.: Stable isotope pulse-chasing and compound specific stable carbon isotope analysis of phospholipid fatty acids to assess methane oxidizing bacterial populations in landfill cover soils, Environ. Sci. Technol., 38, 1359–1367, 2004.
Cunha, M. R., Paterson, G. L. J., Amaro, T., Blackbird, S., de Stigter, H. C., Ferreira, C., Glover, A., Hilário, A., Kiriakoulakis, K., Neal, L., Ravara, A., Rodrigues, C. F., Tiago, Á., and Billett, D. S. M.: Biodiversity of macrofaunal assemblages from three Portuguese submarine canyons (NE Atlantic), Deep-Sea Res. Pt. II, 58, 2433–2447, 2011.
Cunningham, M. J., Hodgson, S., Masson, D. G., and Parson, L. M.: An evaluation of along- and down-slope sediment transport processes between Goban Spur and Brenot Spur on the Celtic Margin of the Bay of Biscay, Sed. Geol., 179, 99–116, 2005.
Danavaro, R., Dell'Anno, A., Corinaldesi, C., Magagnini, M., Noble, R., Tanburini, C., and Weinbauer, M.: Major viral impact on the functioning of benthic deep-sea ecosystems, Nature, 454, 1084–1087, 2008.
Dauwe, B. and Middelburg, J. J.: Amino acids and hexosamines as indicators of organic matter degradation state in North Sea sediments, Limnol. Oceanogr., 43, 782–798, 1998.
De Leo, F. C., Smith, C. R., Rowden, A. A., Bowden, D. A., and Clark, M. R.: Submarine canyons: hotspots of benthic biomass and productivity in the deep sea, Proc. Roy. Soc. Ser. B, 277, 2783–2792, 2010.
de Stigter, H. C., Boer, W., de Jesus Mendes, P. A, Jesus, C. C., Thomsen, L., van den Bergh, G. D., and van Weering, T. C. E.: Recent sediment transport and deposition in the Nazaré Canyon, Portuguese continental margin, Mar. Geol., 246, 144–164, 2007.
Duineveld, G., Lavaleye, M., Berghuis, E., and De Wilde, P.: Activity and composition of the benthic fauna in the Whittard Canyon and the adjacent continental slope (NE Atlantic), Oceanol. Acta, 24, 69–83, 2001.
Duros, P., Fontanier, C., Metzger, E., Pusceddu, A., Cersbron, F., de Stitger, H.C., Bianchelli, S., Danovaro, R., and Jorissen, F. L.: Live (stained) benthic foraminifera in the Whittard Canyon, Celtic margin (NE Atlantic), Deep-Sea Res. Pt. I, 58, 128–146, 2011.
Escobar-Briones, E., Estrada Santillaìn, E. L., and Legendre, P.: Macrofaunal density and biomass in the Campeche Canyon, Southwestern Gulf of Mexico, Deep-Sea Res. Pt. II, 55, 2679–2685, 2008.
Evrard, V., Soetaert, K., Heip, C. H. R., Huettel, M., Xenopoulos, M. A., and Middelburg, J. J.: Carbon and nitrogen flows through the benthic food web of a photic subtidal sandy sediment, Mar. Ecol. Prog. Ser., 416, 1–16, 2010.
Fauchald, K. and Jumars, P. A.: The Diet of Worms: a study of polychaete feeding guilds, Oceanogr. Mar. Biol. Ann. Rev., 17, 193–284, 1979.
Frost, P. C., Stelzer, R. S., Lamberti, G. A., and Elser, J. J.: Ecological stoichiometry of trophic interactions in the benthos: Understanding the role of C:N:P ratios in lentic and lotic habitats, J. N. Am. Benthol. Soc., 21, 515–528, 2002.
Frost, P. C., Evans-White, M. A., Finkel, Z. V., Jensen, T. C., and Matzek, V.: Are you what you eat?, Physiological constraints on organismal stoichiometry in an elementally imbalanced world, Oikos, 109, 18–28, 2005.
Giblin, A. E., Foreman, K. H., and Banta, G. T.: Biogeochemical processes and marine benthic community structure: which follows which?, in: Linking Species and Ecosystems, Chapman and Hall, New York, USA, 29–36, 1995.
Glud, R. N. and Middelboe, M.: Virus and bacteria dynamics of a coastal sediment: Implications for benthic carbon cycling, Limnol. Oceanogr., 49, 2073–2081, 2004.
Gontikaki, E., Mayor, D. J., Narayanaswamy, B. E., and Witte, U.: Feeding strategies of deep-sea sub-Arctic macrofauna of the Faroe-Shetland Channel: Combining natural stable isotopes and enrichment techniques, Deep-Sea Res. Pt. I, 58, 160–172, 2011a.
Gontikaki, E., Mayor, D. J., Thornton, B., Black, K., and Witte, U.: Processing of 13C-labelled diatoms by a bathyal community at sub-zero temperatures, Mar. Ecol. Prog. Ser., 421, 39–50, 2011b.
Gontikaki, E., van Oevelen, D., Soetaert, K., and Witte, U.: Food web flows through a sub-arctic deep-sea benthic community, Prog. Oceanogr., 91, 245–259, 2011c.
Gooday, A. J.: Biological responses to seasonally varying fluxes of organic matter to the ocean floor: A review, J. Oceanogr., 58, 305–332, 2002.
Gregory, R., Saunders, V. A., and Saunders, J. R.: Rule-based simulation of temperate bacteriophage infection: Restriction–modification as a limiter to infection in bacterial populations, Bio Sys, 100, 166–177, 2010.
Hall, P. O. J., Brunnegard, J., Hulthe, G., Martin, W. R., Stahl, H., and Tengberg, A.: Dissolved organic matter in abyssal sediments: Core recovery artefacts, Limnol. Oceanogr., 52, 19–31, 2007.
Harris, P. T. and Whiteway, T.: Global distribution of large submarine canyons: Geomorphic differences between active and passive continental margins, Mar. Geol., 285, 69–86, 2011.
Hayes, J. M.: Fractionation of the isotopes of carbon and hydrogen in biosynthetic processes, in: Stable Isotope Geochemistry, Reviews in Mineralogy and Geochemistry, edited by: Valley, J. W. and Cole, D. R., Washington DC, Min. Soc. Ser. Am., 43, 225–278, 2001.
Hedges, J. I. and Keil, R. G.: Sedimentary organic matter preservation: an assessment and speculative synthesis, Mar. Chem., 49, 81–115, 1995.
Hedges, J. I. and Stern, J. H.: Carbon and nitrogen determinations of carbonate-containing solids, Limnol. Oceanogr., 29, 657–663, 1984.
Hunter, W. R., Levin, L. A., Kitazato, H., and Witte, U.: Macrobenthic assemblage structure and organismal stoichiometry control faunal processing of particulate organic carbon and nitrogen in oxygen minimum zone sediments, Biogeosciences, 9, 993–1006, https://doi.org/10.5194/bg-9-993-2012, 2012a.
Hunter, W. R., Veuger, B., and Witte, U.: Macrofauna regulate heterotrophic bacterial carbon and nitrogen incorporation in low-oxygen sediments, ISME J., 6, 2140–2151, 2012b.
Huvenne, V. A. I., Tyler, P. A., Masson, D. G., Fisher, E. H., Hauton, C., Hühnerbach, V., Le Bas, T., and Wolff, G. A.: A picture on the wall: innovative mapping reveals cold-water coral refuge in submarine canyon, PLoS One, 6, e28755, https://doi.org/10.1371/journal.pone.0028755, 2011.
Jumars, P. A., Mayer, L. M., Deming, J. W., Baross, J. A., and Wheatcroft, R. A.: Deep-Sea Deposit-Feeding Strategies Suggested by Environmental and Feeding Constraints, Phil. Trans. Roy. Soc. Ser. A, 331, 85–101, 1990.
Kaehler, S. and Pakhomov, E. A.: Effects of storage and preservation on the δ13C and δ15N signatures of selected marine organisms, Mar. Ecol. Prog. Ser., 219, 299–304, 2001.
Kemp, P. F.: Potential impact on bacteria of grazing by a macrofaunal deposit-feeder, and the fate of bacterial production, Mar. Ecol. Prog. Ser., 36, 151–161, 1987.
Komsta, L.: Median-based Linear Models, 0.11, 2007.
Kristensen, E. and Holmer, M.: Decomposition of plant materials in marine sediment exposed to different electron acceptors (O2, NO3-, and SO$_{4}^{-2})$ with emphasis on substrate origin, degradation kinetics, and the role of bioturbation, Geochim. Cosmochim. Ac., 65, 1404–1419, 2001.
Lampitt, R. S., Bett, B. J., Kiriakoulakis, K., Popova, E. E., Ragueneau, O., Vangriesheim, A., and Wolff, G. A.: Material supply to the abyssal seafloor in the northeast Atlantic, Prog. Oceanogr., 50, 27–63, 2001.
Levin, L., Blair, N., DeMaster, D., Plaia, G., Fornes, W., Martin, C., and Thomas, C.: Rapid subduction of organic matter by maldanid polychaetes on the North Carolina slope, J. Mar. Res., 55, 595–611, 1997.
Mayor, D. J., Thornton, B., Hay, S., Zuur, A. F., Nicol, G., McWilliams, J. M., and Witte, U. F. M.: Resource quality affects carbon cycling in deep-sea sediments, ISME J., 6, 1740–1748, 2012.
Middelboe, M., Glud, R. N., and Finster, K.: Distribution of viruses and bacteria in relation to diagenetic activity in an estuarine sediment, Limnol. Oceanogr., 48, 1447–1456, 2003.
Middelburg, J. J., Barranguet, C., Boschker, H. T. S., Herman, P. M. J., Moens, T., and Heip, C. H. R.: The fate of intertidal microphytobenthos carbon: An in situ 13C-labeling study, Limnol. Oceanogr., 45, 1224–1234, 2000.
Mojtahid, M., Zubkov, M. V., Hartmann, M., and Gooday, A. J.: Grazing of intertidal benthic foraminifera on bacteria: Assessment using pulse-chase radiotracing, J. Exp. Mar. Biol. Ecol., 399, 25–34 2011.
Nomaki, H., Heinz, P., Nakatsuka, T., Simanaga, M., Ohkouchi, N., Ogawai, N. O., Kogure, K., Ikemoto, E., and Kitazato, H.: Different ingestion patterns of 13C-labeled bacteria and algae by deep-sea benthic foraminifera, Mar. Ecol. Prog. Ser., 310, 95–108, 2006.
Nomaki, H., Ogawa, N. O., Ohkouchi, N., Suga, H., Toyofuku, T., Shimanaga, M., Nakatsuka, T., and Kitazato, H.: Benthic foraminifera as trophic links between phytodetritus and benthic metazoans: carbon and nitrogen isotopic evidence, Mar. Ecol. Prog. Ser., 357, 153–164, 2008.
Oksanen, J., Kindt, R., Legendre, P., O'Hara, B., Simpson, G. L., Solymos, P. M., Stevens, H. H., and Wagner, H.: vegan: Community Ecology Package, 1.15-4, 2009.
Otto, S. and Balzer, W.: Release of dissolved organic carbon (DOC) from the sediments of the N.W. European Continental Margin (Goban Spur) and its significance for benthic carbon cycling, Prog. Oceanogr., 42, 127–144, 1998.
Pascal, P.-Y., Dupuy, C., Richard, P., Rzeznik-Orignac, J., and Nipuil, N.: Bacterivory of a mudflat nematode community under different environmental conditions, Mar. Biol., 154, 671–682, 2008.
Pasqual, C., Lee, C., Goni, M., Tesi, T., Sanchez-Vidal, A., Calafat, A., Canals, M., and Heussner, S.: Use of organic biomarkers to trace the transport of marine and terrigenous organic matter through the southwestern canyons of the Gulf of Lion, Mar. Chem., 126, 1–12, 2011.
Paterson, G. L. J., Glover, A. G., Cunha, M. R., Neal, L., de Stigter, H. C., Kiriakoulakis, K., Billett, D. S. M., Wolff, G. A., Ravara, A., Lamont, P., and Tyler, P.: Disturbance, productivity and diversity in deep-sea canyons: A worm's eye view, Deep-Sea Res. Pt. II, 58, 2448–2460, 2011.
Pearson, T. H. and Rosenberg, R.: Macrobenthic succession in relation to organic enrichment and pollution of the marine environment, Oceanogr. Mar. Biol. Ann. Rev., 16, 229–311, 1978.
Quinn, G. P. and Keough, M. J.: Experimental Design and Data Analysis for Biologists, Cambridge University Press, Cambridge, 2002.
R Development Core Team: R: A language and environment for statistical computing, R Foundation for Statistical Computing, 2009.
Rabouille, C., Caprais, J. C., Lansard, B., Crassous, P., Dedieu, K., Reyss, J. L., and Khripounoff, A.: Organic matter budget in the Southeast Atlantic continental margin close to the Congo Canyon: In situ measurements of sediment oxygen consumption, Deep-Sea Res. Pt. II, 56, 2223–2238, 2009.
Rajendran, N., Suwa, Y., Urushigawa, Y., and Simidu, U.: Distribution of phospholipid ester-linked fatty acid biomarkers for bacteria in the sediments of Ise Bay, Japan, Mar. Chem., 42, 39–56, 1993.
Rajendran, N., Matsuda, O., Urushigawa ,Y., and Simidu, U.: Characterization of microbial community structure in the surface sediment of Osaka Bay, Japan, by phospholipid fatty acid analysis, App. Environ. Microbiol., 60, 248–257, 1994.
Reid, G. S. and Hamilton, D.: A reconnaissance survey of the Whittard Sea Fan, Southwestern Approaches, British Isles, Mar. Geol., 92, 69–86, 1990.
Rowe, G. T., Wei, C. L., Nunnally, C., Haedrich, R., Montagna, P., Baguley, J. G., Bernhard, J. M., Wicksten, M., Ammons, A., Briones, E. E., Soliman, Y., and Deming, J. W.: Comparative biomass structure and estimated carbon flow in food webs in the deep Gulf of Mexico, Deep-Sea Res. Pt. II, 55, 2699–2711, 2008.
Sen, P. K.: Estimates of Regression Coefficient Based on Kendall's tau, J. Am. Stat. Ass., 63, 1379–1389, 1968.
Smith, K. L., Ruhl, H. A., Bett, B. J., Billett, D. S. M., Lampitt, R. S., and Kaufmann, R. S.: Climate, carbon cycling, and deep-ocean ecosystems, Proc. Natl. Acad. Sci., 106, 19211–19218, 2010.
Stoeck, T., Kröncke, I., Duineveld, G. C. A., and Palojärvi, A.: Phospholipid fatty acid profiles at depositional and non-depositional sites in the North Sea, Mar. Ecol. Prog. Ser., 241, 57–70, 2002.
Sweetman, A. K. and Witte, U.: Response of an abyssal macrofaunal community to a phytodetrital pulse, Mar. Ecol. Prog. Ser., 355, 73–84, 2008a.
Sweetman, A. K. and Witte, U.: Macrofaunal response to phytodetritus in a bathyal Norwegian fjord, Deep-Sea Res. Pt. I, 55, 1503–1514, 2008b.
Tengberg, A., Hall, P. O. J., Andersson, U., Linden, B., Styrenius, O., Boland, G., de Bovee, F., Carlsson, B., Ceradini, S., Devol, A., Duiniveld, G., Friemann, J.-U., Glud, R. N., Khripounoff, A., Leather, A., Linke, P., Lund-Hansen, L., Rowe, G., Santschi, P., de Wilde, P., and Witte, U.: Intercalibration of benthic flux chambers II. Hydrodynamic characterization and flux comparisons of 14 different designs, Mar. Chem., 94, 147–173, 2005.
Tesi, T., Langone, L., Goñi, M. A., Turchetto, M., Miserocchi, S., and Boldrin, A.: Source and composition of organic matter in the Bari canyon (Italy): Dense water cascading versus particulate export from?the upper ocean, Deep-Sea Res. Pt. I, 55, 813–831, 2008.
Tesi, T., Puig, P., Palanques, A., and Goñi, M. A.: Lateral advection of organic matter in cascading-dominated submarine canyons, Prog. Oceanogr., 84, 185–203, 2010.
Thingstad, T. F.: Utilization of N, P, and organic C by heterotrophic bacteria, I, outline of a chemostat theory with a consistent concept of "maintenance" metabolism, Mar. Ecol. Prog. Ser., 35, 99–109, 1987.
Toucanne, S., Zaragosi, S., Bourillet, J.-F., Naughton, F., Cremer, M., Eynaud, F., and Denielou, B.: Activity of the turbidite levees of the Celtic-Armorican margin (Bay of Biscay) during the last 30 000 years: imprints of the last European deglaciation and Heinrich events, Mar. Geol., 247, 84–103, 2008.
van Nugteren, P., Herman, P. M. J., Moodley, L., Middelburg, J. J., Vos, M., and Heip, C. H. R.: Spatial distribution of detrital resources determines the outcome of competition between bacteria and a facultative detritivorous worm, Limnol. Oceanogr., 54, 1413–1419, 2009.
van Oevelen, D., Soetaert, K., Middelburg, J. J., Herman, P. M. J., Moodley, L., Hamels, I., Moens, T., and Heip, C.: Carbon flows through a benthic food web: Integrating biomass, isotope and tracer data, J. Mar. Res., 64, 453–482, 2006.
van Oevelen, D., Bergmann, M., Soetaert, K., Bauerfeind, E., Hasemann, C., Klages, M., Schewe, I., Soltwedel, T., and Budeva, N. E.: Carbon flows in the benthic food web at the deep-sea observatory HAUSGARTEN (Fram Strait), Deep-Sea Res. Pt. I, 58, 1069–1083, 2011a.
van Oevelen, D., Soetaert, K., Garcia, R., de Stigter, H. C., Cunha M. R., Pusceddu, A., and Danavaro, R.: Canyon conditions impact carbon flows in food webs of three sections of the Nazaré canyon, Deep-Sea Res. Pt. II, 58, 2461–2476, 2011b.
Venables, W. N. and Ripley, B. D.: Modern Applied Statistics with S. Springer, New York, 2002.
Vetter, E. W. and Dayton, P. K.: Macrofaunal communities within and adjacent to a detritus-rich submarine canyon system, Deep-Sea Res. Pt. II, 45, 25–54, 1998.
Vitousek, P. M. and Howarth, R. W.: Nitrogen limitation on land and in the sea: how can it occur?, Biogeochem., 13, 87–115, 1991.
White, D. C., Davis, W. M., Nickels, J. S., King, J. D., and Bobbie, R. J.: Determination of the sedimentary microbial biomass by extractable lipid phosphate, Oecologia, 40, 51–62, 1979.
Witte, U., Aberle, N., Sand, M., and Wenzhofer, F.: Rapid response of a deep-sea benthic community to POM enrichment: an in situ experimental study, Mar. Ecol. Prog. Ser., 251, 27–36, 2003a.
Witte, U., Wenzhofer, F., Sommer, S., Boetius, A., Heinz, P., Aberle, N., Sand, M., Cremer, A., Abraham, W.-R., Jørgensen, B. B., and Pfannkuche, O.: In situ experimental evidence of the fate of a phytodetritus pulse at the abyssal sea floor, Nature, 424, 763–766, 2003b.
Woulds, C., Andersson, J. H., Cowie, G. L., Middelburg, J. J., and Levin, L. A.: The short-term fate of organic carbon in marine sediments: Comparing the Pakistan margin to other regions, Deep-Sea Res. Pt. II, 56, 393–402, 2009.
Zaragosi, S., Bourillet, J.-F., Eynaud, F., Toucanne, S., Denhard, B., Van Toert, A., and Lanfumey, V.: The impact of the last European deglaciation on the deep-sea turbidite systems of the Celtic-Armorican margin (Bay of Biscay), Geo.-Mar. Lett., 26, 317–329, 2006.
Zuur, A. F., Ieno, E. N., and Elphick, C. S.: A protocol for data exploration to avoid common statistical problems, Meth. Ecol. Evol., 1, 3–14, 2010.
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