Articles | Volume 20, issue 16
https://doi.org/10.5194/bg-20-3509-2023
© Author(s) 2023. 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-20-3509-2023
© Author(s) 2023. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Ideas and perspectives
| 
23 Aug 2023
Ideas and perspectives |
| 23 Aug 2023
| 23 Aug 2023
Ideas and perspectives: The fluctuating nature of oxygen shapes the ecology of aquatic habitats and their biogeochemical cycles – the aquatic oxyscape
Joint Nature Conservation Committee, Quay House, 2 East Station Road, Fletton Quays, Peterborough, PE2 8YY, UK
Sylvain Rigaud
Univ. Nîmes, EA 7352 CHROME, Rue Du Dr Georges Salan, 30021 Nîmes, France
Giovanna Guadagnin
Department of Biology, University of Padova, Padua, Italy
Alberto Barausse
Department of Biology, University of Padova, Padua, Italy
Ramona Marasco
Biological and Environmental Sciences and Engineering Division (BESE), Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
Daniele Daffonchio
Biological and Environmental Sciences and Engineering Division (BESE), Red Sea Research Center (RSRC), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
Julie Régis
Univ. Nîmes, EA 7352 CHROME, Rue Du Dr Georges Salan, 30021 Nîmes, France
Louison Huchet
Univ. Nîmes, EA 7352 CHROME, Rue Du Dr Georges Salan, 30021 Nîmes, France
Capucine Camin
Univ. Nîmes, EA 7352 CHROME, Rue Du Dr Georges Salan, 30021 Nîmes, France
Laura Pettit
Joint Nature Conservation Committee, Quay House, 2 East Station Road, Fletton Quays, Peterborough, PE2 8YY, UK
Cristina Vina-Herbon
Joint Nature Conservation Committee, Quay House, 2 East Station Road, Fletton Quays, Peterborough, PE2 8YY, UK
Independent researcher, Padua, Italy
Related authors
Neus Garcias-Bonet, Marco Fusi, Muhammad Ali, Dario R. Shaw, Pascal E. Saikaly, Daniele Daffonchio, and Carlos M. Duarte
Biogeosciences, 15, 7333–7346, https://doi.org/10.5194/bg-15-7333-2018, https://doi.org/10.5194/bg-15-7333-2018, 2018
Short summary
Short summary
Nitrogen (N) loads are detrimental for coastal ecosystems. We measured the balance between N losses and gains in a Red Sea seagrass. The N loss was higher than N2 fixed, pointing out the importance of seagrasses in removing N from the system. N2 losses increased with temperature. Therefore, the forecasted warming could increase the N2 flux to the atmosphere, potentially impacting seagrass productivity and their capacity to mitigate climate change but also enhancing their potential N removal.
Capucine Camin, François Lacan, Catherine Pradoux, Marie Labatut, Anne Johansen, and James W. Murray
Atmos. Chem. Phys., 25, 8213–8228, https://doi.org/10.5194/acp-25-8213-2025, https://doi.org/10.5194/acp-25-8213-2025, 2025
Short summary
Short summary
This paper presents the chemical and iron isotopic composition of aerosols (> 1 µm) over the equatorial and tropical Pacific Ocean in previously undocumented areas. Analysis of our data suggests that a significant proportion of aerosol iron (∼ 13 %) is not only dissolved but also removed during atmospheric transport. Such removal had not previously been evidenced to our knowledge. This highlights the unique and strong constraints brought by iron isotopes on atmospheric process studies.
Neus Garcias-Bonet, Marco Fusi, Muhammad Ali, Dario R. Shaw, Pascal E. Saikaly, Daniele Daffonchio, and Carlos M. Duarte
Biogeosciences, 15, 7333–7346, https://doi.org/10.5194/bg-15-7333-2018, https://doi.org/10.5194/bg-15-7333-2018, 2018
Short summary
Short summary
Nitrogen (N) loads are detrimental for coastal ecosystems. We measured the balance between N losses and gains in a Red Sea seagrass. The N loss was higher than N2 fixed, pointing out the importance of seagrasses in removing N from the system. N2 losses increased with temperature. Therefore, the forecasted warming could increase the N2 flux to the atmosphere, potentially impacting seagrass productivity and their capacity to mitigate climate change but also enhancing their potential N removal.
Related subject area
Biodiversity and Ecosystem Function: Marine
Reviews and syntheses: A trait-based approach to constrain controls on planktic foraminiferal ecology – key trade-offs and current knowledge gaps
Extraordinary bloom of toxin-producing phytoplankton enhanced by strong retention on the offshore Patagonian shelf
Sedimentary ancient DNA insights into foraminiferal diversity near the grounding line in the western Ross Sea, Antarctica
Ideas and perspectives: How sediment archives can improve model projections of marine ecosystem change
Multispecies expression of coccolithophore vital effects with changing CO2 concentrations and pH in the laboratory with insights for reconstructing CO2 levels in geological history
The distribution and abundance of planktonic foraminifera under summer sea ice in the Arctic Ocean
Biological response of eelgrass epifauna, Taylor's Sea hare (Phyllaplysia taylori) and eelgrass isopod (Idotea resecata), to elevated ocean alkalinity
Benthic ostracod diversity and biogeography in an urban semi–enclosed eutrophic riverine bay
Including the invisible: deep depth-integrated chlorophyll estimates from remote sensing may assist in identifying biologically important areas in oligotrophic coastal margins
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
Particulate inorganic carbon quotas by coccolithophores in low oxygen/low pH waters off the Southeast Pacific margin
Refining Marine Net Primary Production Estimates: Advanced Uncertainty Quantification through Probability Prediction Models
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
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
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
Kirsty M. Edgar, Maria Grigoratou, Fanny M. Monteiro, Ruby Barrett, Rui Ying, and Daniela N. Schmidt
Biogeosciences, 22, 3463–3483, https://doi.org/10.5194/bg-22-3463-2025, https://doi.org/10.5194/bg-22-3463-2025, 2025
Short summary
Short summary
Planktic foraminifera are microscopic marine organisms whose calcium carbonate shells provide valuable insights into past ocean conditions. A promising means of understanding foraminiferal ecology and their environmental interactions is to constrain their key functional traits relating to feeding, symbioses, motility, calcification, and reproduction. Here we review what we know of their functional traits, key gaps in our understanding, and suggestions on how to fill them.
Valeria Ana Guinder, Urban Tillmann, Martin Rivarossa, Carola Ferronato, Fernando J. Ramírez, Bernd Krock, Haifeng Gu, and Martin Saraceno
Biogeosciences, 22, 3397–3428, https://doi.org/10.5194/bg-22-3397-2025, https://doi.org/10.5194/bg-22-3397-2025, 2025
Short summary
Short summary
An unusual survey involving two vessels in the Argentine Sea over a 10 d period enabled synoptic observations of a significant toxic phytoplankton bloom. Simultaneous species characterization of the bloom, along with measurements of surface currents and mesoscale fronts, provided insights into its retention. Interdisciplinary approaches shed light on the biophysical coupling that underlies the persistence and horizontal transport of harmful algal blooms in productive continental shelves.
Ewa Demianiuk, Mateusz Baca, Danijela Popović, Inès Barrenechea Angeles, Ngoc-Loi Nguyen, Jan Pawlowski, John B. Anderson, and Wojciech Majewski
Biogeosciences, 22, 2601–2620, https://doi.org/10.5194/bg-22-2601-2025, https://doi.org/10.5194/bg-22-2601-2025, 2025
Short summary
Short summary
Ancient foraminiferal DNA is studied in five Antarctic cores with sediments up to 25 kyr old. We use a standard and a new, more effective marker, which may become the next standard for paleoenvironmental studies. Much less diverse foraminifera occur on slopes of submarine moraines than in open-marine settings. Soft-walled foraminifera, not found in the fossil record, are especially abundant. There is no foraminiferal DNA in tills, suggesting its destruction during glacial redeposition.
Isabell Hochfeld, Ben A. Ward, Anke Kremp, Juliane Romahn, Alexandra Schmidt, Miklós Bálint, Lutz Becks, Jérôme Kaiser, Helge W. Arz, Sarah Bolius, Laura S. Epp, Markus Pfenninger, Christopher A. Klausmeier, Elena Litchman, and Jana Hinners
Biogeosciences, 22, 2363–2380, https://doi.org/10.5194/bg-22-2363-2025, https://doi.org/10.5194/bg-22-2363-2025, 2025
Short summary
Short summary
Marine ecosystem models (MEMs) are valuable for assessing the threats of global warming to biodiversity and ecosystem functioning, but their predictions vary widely. We argue that MEMs should consider evolutionary processes and undergo independent validation. Here, we present a novel framework for MEM development using validation data from sediment archives, which map long-term environmental and evolutionary change. Our approach is a crucial step towards improving the predictive power of MEMs.
Goulwen Le Guevel, Fabrice Minoletti, Carla Geisen, Gwendoline Duong, Virginia Rojas, and Michaël Hermoso
Biogeosciences, 22, 2287–2308, https://doi.org/10.5194/bg-22-2287-2025, https://doi.org/10.5194/bg-22-2287-2025, 2025
Short summary
Short summary
This study explores the impact of environmental conditions on the chemistry of coccoliths, calcite minerals produced by marine algae, to better understand past climate changes. By cultivating different species of coccolithophores under various CO2 and pH levels, we have shown that the isotopic composition of certain species varies with CO2 concentration and quantified these variations.
Flor Vermassen, Clare Bird, Tirza M. Weitkamp, Kate F. Darling, Hanna Farnelid, Céline Heuzé, Allison Y. Hsiang, Salar Karam, Christian Stranne, Marcus Sundbom, and Helen K. Coxall
Biogeosciences, 22, 2261–2286, https://doi.org/10.5194/bg-22-2261-2025, https://doi.org/10.5194/bg-22-2261-2025, 2025
Short summary
Short summary
We provide the first systematic survey of planktonic foraminifera in the high Arctic Ocean. Our results describe the abundance and species composition under summer sea ice. They indicate that the polar specialist N. pachyderma is the only species present, with subpolar species absent. The data set will be a valuable reference for continued monitoring of the state of planktonic foraminifera communities as they respond to the ongoing sea-ice decline and the “Atlantification” of the Arctic Ocean.
Kristin Jones, Lenaïg G. Hemery, Nicholas D. Ward, Peter J. Regier, Mallory C. Ringham, and Matthew D. Eisaman
Biogeosciences, 22, 1615–1630, https://doi.org/10.5194/bg-22-1615-2025, https://doi.org/10.5194/bg-22-1615-2025, 2025
Short summary
Short summary
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, whereas the isopod was more resilient. Understanding interactions with biology is important as this field expands.
Jialu Huang, Moriaki Yasuhara, He Wang, Pedro Julião Jimenez, Jiying Li, and Minhan Dai
EGUsphere, https://doi.org/10.5194/egusphere-2025-138, https://doi.org/10.5194/egusphere-2025-138, 2025
Short summary
Short summary
We investigated the abundance, diversity, composition, and distribution of ostracod (a meiobenthic group) and their interactions with eutrophication and pollution through high resolution sampling of surface sediment in Deep Bay, a small semi-enclosed riverine bay adjacent to two of the world’s most populated cities, Hong Kong and Shenzhen. The results support the idea that ostracod is a useful bioindicator of coastal benthic ecosystems shaped by distinct environmental problems.
Renée P. Schoeman, Christine Erbe, and Robert D. McCauley
Biogeosciences, 22, 959–974, https://doi.org/10.5194/bg-22-959-2025, https://doi.org/10.5194/bg-22-959-2025, 2025
Short summary
Short summary
Marine habitat models do not include deep chlorophyll maxima, which may support higher trophic level foraging in (meso-)oligotrophic habitats. We used ocean glider data to show that chlorophyll maxima form off Western Australia in September–April. At least 50 % were biomass maxima, likely supporting local krill growing sufficiently for whale consumption. We suggest including deep chlorophyll maxima in marine habitat models as deep depth-integrated estimates from satellite-derived surface values.
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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.
Francisco Javier Díaz-Rosas, Cristian Antonio Vargas, and Peter von Dassow
EGUsphere, https://doi.org/10.5194/egusphere-2024-3463, https://doi.org/10.5194/egusphere-2024-3463, 2024
Short summary
Short summary
We studied Particulate Inorganic Carbon (PIC) and coccolithophores in low-oxygen, low-pH waters off the Southeast Pacific margin. We estimated how much PIC is produced by coccolithophores, which supports carbon transport to ocean depths. Results show coccolithophores can thrive in these zones, though their role in carbon export may lessen. This work advances understanding of coccolithophores’ role in carbon cycling as ocean acidification changes marine chemistry.
Jie Niu, Mengyu Xie, Yanqun Lu, Liwei Sun, Na Liu, Han Qiu, Dongdong Liu, Chuanhao Wu, and Pan Wu
EGUsphere, https://doi.org/10.5194/egusphere-2024-3221, https://doi.org/10.5194/egusphere-2024-3221, 2024
Short summary
Short summary
Our results reveal the effectiveness of probabilistic forecasting models in analyzing the uncertainty of marine NPP estimates. Both the Bayesian and neural network models demonstrate superior capabilities in capturing the dynamic trends and uncertainties inherent in NPP data, with the neural network model demonstrating superior accuracy and reliability. Furthermore, we successfully applied these models to forecast NPP in specific ocean regions, highlighting the interannual variability of NPP.
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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.
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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
Short summary
Short summary
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.
Cited articles
Aldunate, M., De la Iglesia, R., Bertagnolli, A. D., and Ulloa, O.:
Oxygen modulates bacterial community composition in the coastal upwelling waters off central Chile, Deep-Res. Pt. II, 156, 68–79, https://doi.org/10.1016/j.dsr2.2018.02.001, 2018.
Andersen, M. R., Kragh, T., and Sand-Jensen, K.:
Extreme diel dissolved oxygen and carbon cycles in shallow vegetated lakes, P. Roy. Soc. B-Biol. Sci., 284, 20171427, https://doi.org/10.1098/rspb.2017.1427, 2017.
Antão, L. H., Bates, A. E., Blowes, S. A., Waldock, C., Supp, S. R., Magurran, A. E., Dornelas, M., and Schipper, A. M.:
Temperature-related biodiversity change across temperate marine and terrestrial systems, Nat. Ecol. Evol., 4, 927–933, https://doi.org/10.1038/s41559-020-1185-7, 2020.
Bates, A. E., Helmuth, B., Burrows, M. T., Duncan, M. I., Garrabou, J., Guy-Haim, T., Lima, F., Queiros, A. M., Seabra, R., Marsh, R., Belmaker, J., Bensoussan, N., Dong, Y., Mazaris, A. D., Smale, D., Wahl, M., and Rilov, G.:
Biologists ignore ocean weather at their peril, Nature, 560, 299–301, 2018.
Bennett, J. M., Sunday, J., Calosi, P., Villalobos, F., Martínez, B., Molina-Venegas, R., Araújo, M. B., Algar, A. C., Clusella-Trullas, S., Hawkins, B. A., Keith, S. A., Kühn, I., Rahbek, C., Rodríguez, L., Singer, A., Morales-Castilla, I., and Olalla-Tárraga, M. Á.:
The evolution of critical thermal limits of life on Earth, Nat. Commun., 12, 1–9, https://doi.org/10.1038/s41467-021-21263-8, 2021.
Benoiston, A. S., Ibarbalz, F. M., Bittner, L., Guidi, L., Jahn, O., Dutkiewicz, S., and Bowler, C.:
The evolution of diatoms and their biogeochemical functions, Philos. T. R. Soc. B, 372, https://doi.org/10.1098/rstb.2016.0397, 2017.
Berg, P., Huettel, M., Glud, R. N., Reimers, C. E., and Attard, K. M.:
Aquatic Eddy Covariance: The Method and Its Contributions to Defining Oxygen and Carbon Fluxes in Marine Environments, Annu. Rev. Mar. Sci., 14, 431–455, https://doi.org/10.1146/annurev-marine-042121-012329, 2022.
Bernhardt, J. R., O'Connor, M. I., Sunday, J. M., and Gonzalez, A.:
Life in fluctuating environments, Philos. T. Roy. Soc. B., 375, 20190454, https://doi.org/10.1098/rstb.2019.0454, 2020.
Bickler, P. E. and Buck, L. T.:
Hypoxia tolerance in reptiles, amphibians, and fishes: Life with variable oxygen availability, Annu. Rev. Physiol., 69, 145–170, https://doi.org/10.1146/annurev.physiol.69.031905.162529, 2007.
Bitter, M. C., Wong, J. M., Dam, H. G., Donelan, S. C., Kenkel, C. D., Komoroske, L. M., Nickols, K. J., Rivest, E. B., Salinas, S., Burgess, S. C., and Lotterhos, K. E.:
Fluctuating selection and global change: A synthesis and review on disentangling the roles of climate amplitude, predictability and novelty, P. Roy. Soc. B-Biol. Sci, 288, https://doi.org/10.1098/rspb.2021.0727, 2021.
Blewett, T. A., Binning, S. A., Weinrauch, A. M., Ivy, C. M., Rossi, G. S., Borowiec, B. G., Lau, G. Y., Overduin, S. L., Aragao, I., and Norin, T.:
Physiological and behavioural strategies of aquatic animals living in fluctuating environments, J. Exp. Biol., 225, jeb242503, https://doi.org/10.1242/jeb.242503, 2022.
Booth, J., Fusi, M., Giomi, F., Chapman, E., Diele, K., and McQuaid, C.:
Diel oxygen fluctuation drives the thermal response and metabolic performance of coastal marine ectotherms, P. Roy. Soc. B-Biol. Sci, 288, 20211141, 2021.
Booth, J. M., Fusi, M., Marasco, R., Mbobo, T., and Daffonchio, D.:
Fiddler crab bioturbation determines consistent changes in bacterial communities across contrasting environmental conditions, Sci. Rep.-UK, 9, 1–14, https://doi.org/10.1038/s41598-019-40315-0, 2019.
Booth, J. M., Giomi, F., Daffonchio, D., Mcquaid, C. D., and Fusi, M.:
Disturbance of primary producer communities disrupts the thermal limits of the associated aquatic fauna, Sci. Total Environ., 872, 162135, https://doi.org/10.1016/j.scitotenv.2023.162135, 2023a.
Booth, J. M., Fusi, M., Marasco, R., and Daffonchio, D.:
The microbial landscape in bioturbated mangrove sediment: A resource for promoting nature-based solutions for mangroves, Microb. Biotechnol., in press, https://doi.org/10.1111/1751-7915.14273, 2023b.
Breen, P. A. and Mann, K. H.:
Changing lobster abundance and the destruction of kelp beds by sea urchins, Mar. Biol., 34, 137–142, https://doi.org/10.1007/BF00390755, 1976.
Breitburg, D., Grégoire, M., and Isensee, K.:
The ocean is losing its breath, UNESCO, Paris, France, 11, 1–43, 2018.
Breitburg, D., Levin, L. A., Oschlies, A., Grégoire, M., Chavez, F. P., Conley, D. J., Garçon, V., Gilbert, D., Gutiérrez, D., Isensee, K., Jacinto, G. S., Limburg, K. E., Montes, I., Naqvi, S. W. A., Pitcher, G. C., Rabalais, N. N., Roman, M. R., Rose, K. A., Seibel, B. A., Telszewski, M., Yasuhara, M., and Zhang, J.:
Declining oxygen in the global ocean and coastal waters, Science, 359, eaam7240, https://doi.org/10.1126/science.aam7240, 2018.
Breitburg, D. L., Conley, D., Isensee, K., Levin, L. A., Limburg, K. E., and Williamson, P.:
What can we do? Adaptation and solutions to declining ocean oxygen, in: Ocean deoxygenation everyone's Probl. Causes, impacts, consequences Solut., edited by: Laffoley, D. and Baxter, J. M., IUCN, Gland Switzerland, 545–562, 2019.
Caballero-Alfonso, A. M., Carstensen, J., and Conley, D. J.:
Biogeochemical and environmental drivers of coastal hypoxia, J. Marine Syst., 141, 190–199, https://doi.org/10.1016/j.jmarsys.2014.04.008, 2015.
Caron, D. A.:
Inorganic nutrients, bacteria, and the microbial loop, Microb. Ecol. Ecol., 28, 295–298, https://doi.org/10.1007/BF00166820, 1994.
Challener, R. C., Robbins, L. L., and Mcclintock, J. B.:
Variability of the carbonate chemistry in a shallow, seagrass-dominated ecosystem: Implications for ocean acidification experiments, Mar. Freshwater Res., 67, 163–172, https://doi.org/10.1071/MF14219, 2016.
Chapman, D. (Ed.): Water Quality Assessments – A Guide to Use of Biota, Sediments and Water in Environmental Monitoring, Second Edn., E&FN Spon, London, 0419216006, 2021.
Chen, H., Costanza, R., and Kubiszewski, I.:
Legitimacy and limitations of valuing the oxygen production of ecosystems, Ecosyst. Serv., 58, 101485, https://doi.org/10.1016/j.ecoser.2022.101485, 2022.
Craig, H. and Hayward, T.:
Oxygen Supersaturation in the Ocean: Biological Versus Physical Contributons, Science, 735, 1983–1986, 1983.
Dafforn, K. A., Simpson, S. L., Kelaher, B. P., Clark, G. F., Komyakova, V., Wong, C. K. C., and Johnston, E. L.:
The challenge of choosing environmental indicators of anthropogenic impacts in estuaries, Environ. Pollut., 163, 207–217, https://doi.org/10.1016/j.envpol.2011.12.029, 2012.
Denis, L., Gevaert, F., and Spilmont, N.:
Microphytobenthic production estimated by in situ oxygen microprofiling: Short-term dynamics and carbon budget implications, J. Soils Sediments, 12, 1517–1529, https://doi.org/10.1007/s11368-012-0588-8, 2012.
Diaz, R. J. and Rosenberg, R.:
Spreading dead zones and consequences for marine ecosystems, Science, 321, 926–929, https://doi.org/10.1126/science.1156401, 2008.
Duarte, C. M., Losada, I. J., Hendriks, I. E., Mazarrasa, I., and Marbà, N.:
The role of coastal plant communities for climate change mitigation and adaptation, Nat. Clim. Change, 3, 961–968, https://doi.org/10.1038/nclimate1970, 2013.
Fenchel, T. and Finlay, B.:
Oxygen and the spatial structure of microbial communities, Biol. Rev., 83, 553–569, https://doi.org/10.1111/j.1469-185X.2008.00054.x, 2008.
Fusi, M., Daffonchio, D., Booth, J., and Giomi, F.:
Dissolved Oxygen in Heterogeneous Environments Dictates the Metabolic Rate and Thermal Sensitivity of a Tropical Aquatic Crab, Front. Mar. Sci., 8, 1–9, https://doi.org/10.3389/fmars.2021.767471, 2021.
Fusi, M., Marasco, R., Ramond, J., Barausse, A., and Baldanzi, S.:
Editorial: Fluctuating Habitats: Ecological Relevance of Environmental Variability and Predictability on Species, Communities, and Ecosystems, Front. Ecol. Evol., 10, 1–4, https://doi.org/10.3389/fevo.2022.907622, 2022.
Garzke, J., Connor, S. J., Sommer, U., and O'connor, M. I.:
Trophic interactions modify the temperature dependence of community biomass and ecosystem function, PLOS Biol., 17, 1–27, https://doi.org/10.1371/journal.pbio.2006806, 2019.
Giomi, F., Barausse, A., Duarte, C. M., Booth, J., Agusti, S., Saderne, V., Anton, A., Daffonchio, D., and Fusi, M.:
Oxygen supersaturation protects coastal marine fauna from ocean warming, Sci. Adv., 5, 1–8, https://doi.org/10.1126/sciadv.aax1814, 2019.
Glud, R. N.:
Oxygen dynamics of marine sediments, Mar. Biol. Res., 4, 243–289, https://doi.org/10.1080/17451000801888726, 2008.
Graham, N. A. J., Wilson, S. K., Carr, P., Hoey, A. S., Jennings, S., and MacNeil, M. A.:
Seabirds enhance coral reef productivity and functioning in the absence of invasive rats, Nature, 559, 250–253, https://doi.org/10.1038/s41586-018-0202-3, 2018.
Guo, X., Song, G., Li, Y., Zhao, L., and Wang, J.:
Switch of Bacteria Community Under Oxygen Depletion in Sediment of Bohai Sea, Front. Mar. Sci., 9, 1–13, https://doi.org/10.3389/fmars.2022.833513, 2022.
Hochachka, P. W.:
Temperature: the ectothermy option, in: Phylogenetic and biochemical perspectives: Biochemistry and molecular biology of fishes, 1, vol. 1, edited by: Hochachka, P. W. and Mommsen, T. P., Elsevier, Amsterdam, https://doi.org/10.1016/B978-0-444-89124-2.50016-6, 313–322, 1991.
Ito, T., Nenes, A., Johnson, M. S., Meskhidze, N., and Deutsch, C.:
Acceleration of oxygen decline in the tropical Pacific over the past decades by aerosol pollutants, Nat. Geosci., 9, 443–447, https://doi.org/10.1038/ngeo2717, 2016.
Keeling, R. F., Körtzinger, A., and Gruber, N.:
Ocean deoxygenation in a warming world, Annu. Rev. Mar. Sci., 2, 199–229, https://doi.org/10.1146/annurev.marine.010908.163855, 2010.
Kerrison, P., Hall-Spencer, J. M., Suggett, D. J., Hepburn, L. J., and Steinke, M.:
Assessment of pH variability at a coastal CO2 vent for ocean acidification studies, Estuar. Coast. Shelf S., 94, 129–137, https://doi.org/10.1016/j.ecss.2011.05.025, 2011.
Kinney, E. H. and Roman, C. T.:
Response of primary producers to nutrient enrichment in a shallow estuary, Mar. Ecol. Prog. Ser., 163, 89–98, https://doi.org/10.3354/meps163089, 1998.
Krause-Jensen, D., Marba, N., Sanz-Martin, M., Hendriks, I. E., Thyrring, J., Carstensen, J., Sejr, M. K., and Duarte, C. M.:
Long photoperiods sustain high pH in Arctic kelp forests, Sci. Adv., 2, e1501938–e1501938, https://doi.org/10.1126/sciadv.1501938, 2016.
Laffoley, D. and Baxter, J. M.:
Explaining Ocean Warming: Causes, scale, effects and consequences, IUCN, Gland Switzerland, 458 pp., https://doi.org/10.2305/IUCN.CH.2016.08.en, 2016.
Laffoley, D. D. A. and Baxter, J. M.:
Ocean Deoxygenation: Everyone's Problem-Causes, Impacts, Consequences and Solutions, IUCN, Gland Switzerland, 2019.
Limburg, K. E., Breitburg, D., Swaney, D. P., and Jacinto, G.:
Ocean Deoxygenation: A Primer, One Earth, 2, 24–29, https://doi.org/10.1016/j.oneear.2020.01.001, 2020.
Mallin, M. A., Paerl, H. W., Rudek, J., and Bates, P. W.:
Regulation of estuarine primary production by watershed rainfall and river flow, Mar. Ecol. Prog. Ser., 93, 199–203, https://doi.org/10.3354/meps093199, 1993.
Manzello, D. P.:
Ocean acidification hot spots: Spatiotemporal dynamics of the seawater CO2 system of eastern Pacific coral reefs, Limnol. Oceanogr., 55, 239–248, https://doi.org/10.4319/lo.2010.55.1.0239, 2010.
Marasco, R., Fusi, M., Coscolín, C., Barozzi, A., Almendral, D., Bargiela, R., Gohlke, C., Christopher, P., Dittrich, J., Gohlke, H., Matesanz, R., Sanchez-carrillo, S., Mapelli, F., Chernikova, T. N., Golyshin, P. N., Ferrer, M., and Daffonchio, D.:
Enzyme adaptation to habitat thermal legacy microbiomes, Nat. Commun., in press, https://doi.org/10.1038/s41467-023-36610-0, 2023.
McArley, T. J., Sandblom, E., and Herbert, N. A.:
Fish and hyperoxia—From cardiorespiratory and biochemical adjustments to aquaculture and ecophysiology implications, Fish Fish., 1–32, https://doi.org/10.1111/faf.12522, 2020.
McArley, T. J., Morgenroth, D., Zena, L. A., Ekström, A. T., and Sandblom, E.:
Experimental hyperoxia (O2 supersaturation) reveals a gill diffusion limitation of maximum aerobic performance in fish, Biol. Lett.-UK, 18, 20220401, https://doi.org/10.1098/rsbl.2022.0401, 2022.
Meire, L., Soetaert, K. E. R., and Meysman, F. J. R.:
Impact of global change on coastal oxygen dynamics and risk of hypoxia, Biogeosciences, 10, 2633–2653, https://doi.org/10.5194/bg-10-2633-2013, 2013.
Morash, A. J., Neufeld, C., MacCormack, T. J., and Currie, S:
The importance of incorporating natural thermal variation when evaluating physiological performance in wild species, J. Exp. Biol., 221, 1–10, https://doi.org/10.1242/JEB.164673, 2018.
Nilsson, H. C. and Rosenberg, R.:
Benthic habitat quality assessment of an oxygen stressed fjord by surface and sediment profile images, J. Marine Syst., 11, 249–264, https://doi.org/10.1016/S0924-7963(96)00111-X, 1997.
Pacherres, C. O., Ahmerkamp, S., Koren, K., Richter, C., and Holtappels, M.:
Ciliary flows in corals ventilate target areas of high photosynthetic oxygen production, Curr. Biol., 32, 4150–4158, https://doi.org/10.1016/j.cub.2022.07.071, 2022.
Palmeri, L., Barausse, A., and Jorgensen, S. E. (Eds.): Ecological processes handbook, CRC Press, Boca Raton FL, ISBN 9780429097997, 375 pp., 2013.
Pörtner, H.-O.:
Oxygen- and capacity-limitation of thermal tolerance: a matrix for integrating climate-related stressor effects in marine ecosystems., J. Exp. Biol., 213, 881–893, 2010.
Pörtner, H.-O., Scholes, R. J., Arneth, A., Barnes, D. K. A., Burrows, M. T., Diamond, S. E., Duarte, C. M., Kiessling, W., Leadley, P., Managi, S., McElwee, P., Midgley, G., Ngo, H. T., Obura, D., Pascual, U., Sankaran, M., Shin, Y. J., and Val, A. L.:
Overcoming the coupled climate and biodiversity crises and their societal impacts, Science, 380, eabl4881, https://doi.org/10.1126/science.abl4881, 2023.
Power, L. D. and Cardinale, B. J.:
Species richness enhances both algal biomass and rates of oxygen production in aquatic microcosms, Oikos, 118, 1703–1711, https://doi.org/10.1111/j.1600-0706.2009.17585.x, 2009.
Rigaud, S., Deflandre, B., Maire, O., Bernard, G., Duchêne, J. C., Poirier, D., and Anschutz, P.:
Transient biogeochemistry in intertidal sediments: New insights from tidal pools in Zostera noltei meadows of Arcachon Bay (France), Mar. Chem., 200, 1–13, https://doi.org/10.1016/j.marchem.2018.02.002, 2018.
Riser, S. C. and Johnson, K. S.:
Net production of oxygen in the subtropical ocean, Nature, 451, 323–325, https://doi.org/10.1038/nature06441, 2008.
Sandrin, T. R., Dowd, S. E., Herman, D. C., and Maier, R. M.:
Aquatic environments, in: Environment Microbiology, edited by: Maier, R. M., Pepper, I. L., and Gerba, C. P., Elsevier, 103–122, 2009.
Schmidt, S., Diallo, I. I., Derriennic, H., Fallou, H., and Lepage, M.:
Exploring the susceptibility of turbid estuaries to hypoxia as a prerequisite to designing a pertinent monitoring strategy of dissolved oxygen, Front. Mar. Sci., 6, 1–8, https://doi.org/10.3389/fmars.2019.00352, 2019.
Schmidtko, S., Stramma, L., and Visbeck, M.:
Decline in global oceanic oxygen content during the past five decades, Nature, 542, 335–339, https://doi.org/10.1038/nature21399, 2017.
Shaw, E. C., Munday, P. L., and McNeil, B. I.:
The role of CO2 variability and exposure time for biological impacts of ocean acidification, Geophys. Res. Lett., 40, 4685–4688, https://doi.org/10.1002/grl.50883, 2013.
Spietz, R. L., Williams, C. M., Rocap, G., and Horner-Devine, M. C.:
A dissolved oxygen threshold for shifts in bacterial community structure in a seasonally hypoxic estuary, PLOS ONE, 10, 1–18, https://doi.org/10.1371/journal.pone.0135731, 2015.
Steiner, P. A., De Corte, D., Geijo, J., Mena, C., Yokokawa, T., Rattei, T., Herndl, G. J., and Sintes, E.:
Highly variable mRNA half-life time within marine bacterial taxa and functional genes, Environ. Microbiol., 21, 3873–3884, https://doi.org/10.1111/1462-2920.14737, 2019.
Stillman, J. H. and Somero, G. N.:
A comparative analysis of the upper thermal tolerance limits of eastern Pacific porcelain crabs, genus Petrolisthes: influences of latitude, vertical zonation, acclimation, and phylogeny, Physiol. Biochem. Zool., 73, 200–208, https://doi.org/10.1086/316738, 2000.
Stramma, L., Schmidtko, S., Levin, L. A., and Johnson, G. C.:
Ocean oxygen minima expansions and their biological impacts, Deep-Sea Res. Pt. I, 57, 587–595, https://doi.org/10.1016/j.dsr.2010.01.005, 2010.
Talke, S. A., De Swart, H. E., and De Jonge, V. N.:
An idealized model and systematic process study of oxygen depletion in highly turbid estuaries, Estuar. Coast., 32, 602–620, https://doi.org/10.1007/s12237-009-9171-y, 2009.
Tomasetti, S. J. and Gobler, C. J.:
Dissolved oxygen and pH criteria leave fisheries at risk, Science, 368, 372–373, https://doi.org/10.1126/science.aba4896, 2020.
Trowbridge, C. D., Davenport, J., Cottrell, D. M., Harman, L., Plowman, C. Q., Little, C., and McAllen, R.:
Extreme oxygen dynamics in shallow water of a fully marine Irish sea lough, Reg. Stud. Mar. Sci., 11, 9–16, https://doi.org/10.1016/j.rsma.2017.01.008, 2017.
Vargas, C. A., Lagos, N. A., Lardies, M. A., Duarte, C., Manríquez, P. H., Aguilera, V. M., Broitman, B., Widdicombe, S., and Dupont, S.:
Species-specific responses to ocean acidification should account for local adaptation and adaptive plasticity, Nat. Ecol. Evol., 1, 1–7, https://doi.org/10.1038/s41559-017-0084, 2017.
Vargas, C. A., Cuevas, L. A., Broitman, B. R., San Martin, V. A., Lagos, N. A., Gaitán-Espitia, J. D., and Dupont, S.:
Upper environmental pCO2 drives sensitivity to ocean acidification in marine invertebrates, Nat. Clim. Change, 12, 200–207, https://doi.org/10.1038/s41558-021-01269-2, 2022.
Viaroli, P. and Christian, R. R.:
Description of trophic status, hyperautotrophy and dystrophy of a coastal lagoon through a potential oxygen production and consumption index – TOSI: Trophic Oxygen Status Index, Ecol. Indic., 3, 237–250, https://doi.org/10.1016/j.ecolind.2003.11.001, 2004.
Virtanen, E. A., Norkko, A., Nyström Sandman, A., and Viitasalo, M.:
Identifying areas prone to coastal hypoxia – the role of topography, Biogeosciences, 16, 3183–3195, https://doi.org/10.5194/bg-16-3183-2019, 2019.
Winter, G., Hetzel, Y., Huang, P., Hipsey, M. R., Mulligan, R. P., and Hansen, J.:
Coastal processes, extreme events and forecasting, in: Marine Extremes, edited by: Techera, E. and Winter, G., London ISBN 9780429491023, 17, 2019.
Short summary
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.
Oxygen availability in marine water and freshwater is very variable at daily and seasonal...
Altmetrics
Final-revised paper
Preprint