Articles | Volume 18, issue 18
https://doi.org/10.5194/bg-18-5117-2021
© Author(s) 2021. 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-18-5117-2021
© Author(s) 2021. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
17 Sep 2021
Research article |
| 17 Sep 2021
| 17 Sep 2021
The Bouraké semi-enclosed lagoon (New Caledonia) – a natural laboratory to study the lifelong adaptation of a coral reef ecosystem to extreme environmental conditions
Federica Maggioni
CORRESPONDING AUTHOR
ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
Mireille Pujo-Pay
CNRS, UMR 7621, Laboratoire d'Océanographie Microbienne, Observatoire Océanologique de Banyuls, Sorbonne Université, Paris, France
Jérome Aucan
ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
Pacific Community Center for Ocean Science (SPC), Nouméa, New Caledonia
Carlo Cerrano
Department of Life and Environmental Sciences (DiSVA), Polytechnic University of Marche, Ancona, Italy
Barbara Calcinai
Department of Life and Environmental Sciences (DiSVA), Polytechnic University of Marche, Ancona, Italy
Claude Payri
ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
Francesca Benzoni
Red Sea Research Center, Division of Biological and Environmental Science and Engineering, King Abdullah University of Science and Technology, 23955-6900 Thuwal, Saudi Arabia
Yves Letourneur
ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
Riccardo Rodolfo-Metalpa
ENTROPIE, IRD, Université de la Réunion, CNRS, IFREMER, Université de Nouvelle-Calédonie, Nouméa 98800, New Caledonia
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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
Including the invisible: deep depth-integrated chlorophyll estimates from remote sensing may assist in identifying biologically important areas in oligotrophic coastal margins
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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
Reviews and Syntheses: Trait-based approach to constrain controls on planktic foraminiferal ecology: key trade-offs and current knowledge gaps
Seasonal foraging behavior of Weddell seals in relation to oceanographic environmental conditions in the Ross Sea, Antarctica
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Extraordinary bloom of toxin-producing phytoplankton enhanced by strong retention in offshore continental shelf waters
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Planktonic foraminifera assemblage composition and flux dynamics inferred from an annual sediment trap record in the central Mediterranean Sea
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Renée P. Schoeman, Christine Erbe, and Robert D. McCauley
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Giulia Faucher, Mathias Haunost, Allanah Joy Paul, Anne Ulrike Christiane Tietz, and Ulf Riebesell
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Ocean alkalinity enhancement (OAE) is being evaluated for its capacity to absorb atmospheric CO2 in the ocean and store it long term to mitigate climate change. As researchers plan for field tests to gain insights into OAE, sharing knowledge on its environmental impact on marine ecosystems is urgent. Our study examined NaOH-induced OAE in Emiliania huxleyi, a key coccolithophore species, and found that the added total alkalinity (ΔTA) should stay below 600 µmol kg⁻¹ to avoid negative impacts.
Isabell Hochfeld and Jana Hinners
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Ecosystem models disagree on future changes in marine ecosystem functioning. We suspect that the lack of phytoplankton adaptation represents a major uncertainty factor, given the key role that phytoplankton play in marine ecosystems. Using an evolutionary ecosystem model, we found that phytoplankton adaptation can notably change simulated ecosystem dynamics. Future models should include phytoplankton adaptation; otherwise they can systematically overestimate future ecosystem-level changes.
Evert de Froe, Igor Yashayaev, Christian Mohn, Johanne Vad, Furu Mienis, Gerard Duineveld, Ellen Kenchington, Erica Head, Steve W. Ross, Sabena Blackbird, George A. Wolff, J. Murray Roberts, Barry MacDonald, Graham Tulloch, and Dick van Oevelen
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Deep-sea sponge grounds are distributed globally and are considered hotspots of biological diversity and biogeochemical cycling. To date, little is known about the environmental constraints that control where deep-sea sponge grounds occur and what conditions favour high sponge biomass. Here, we characterize oceanographic conditions at two contrasting sponge grounds. Our results imply that sponges and associated fauna benefit from strong tidal currents and favourable regional ocean currents.
Kirsty Marie Edgar, Maria Grigoratou, Fanny Monteiro, Ruby Barrett, Rui Ying, and Daniela Schmidt
EGUsphere, https://doi.org/10.5194/egusphere-2024-3295, https://doi.org/10.5194/egusphere-2024-3295, 2024
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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.
Hyunjae Chung, Jikang Park, Mijin Park, Yejin Kim, Unyoung Chun, Sukyoung Yun, Won Sang Lee, Hyun A. Choi, Ji Sung Na, Seung-Tae Yoon, and Won Young Lee
Biogeosciences, 21, 5199–5217, https://doi.org/10.5194/bg-21-5199-2024, https://doi.org/10.5194/bg-21-5199-2024, 2024
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Understanding how marine animals adapt to variations in marine environmental conditions is paramount. In this paper, we investigated the influence of changes in seawater and light conditions on the seasonal foraging behavior of Weddell seals in the Ross Sea, Antarctica. Our findings could serve as a baseline and establish a foundational understanding for future research, particularly concerning the impact of marine environmental changes on the ecosystem of the Ross Sea Marine Protected Area.
Anaïs Lebrun, Cale A. Miller, Marc Meynadier, Steeve Comeau, Pierre Urrutti, Samir Alliouane, Robert Schlegel, Jean-Pierre Gattuso, and Frédéric Gazeau
Biogeosciences, 21, 4605–4620, https://doi.org/10.5194/bg-21-4605-2024, https://doi.org/10.5194/bg-21-4605-2024, 2024
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We tested the effects of warming, low salinity, and low irradiance on Arctic kelps. We show that growth rates were similar across species and treatments. Alaria esculenta is adapted to low-light conditions. Saccharina latissima exhibited nitrogen limitation, suggesting coastal erosion and permafrost thawing could be beneficial. Laminaria digitata did not respond to the treatments. Gene expression of Hedophyllum nigripes and S. latissima indicated acclimation to the experimental treatments.
Valeria Ana Guinder, Urban Tillmann, Martin Rivarossa, Carola Ferronato, Fernando Javier Ramirez, Bernd Krock, Haifeng Gu, and Martin Saraceno
EGUsphere, https://doi.org/10.5194/egusphere-2024-3157, https://doi.org/10.5194/egusphere-2024-3157, 2024
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An unusual survey involving two vessels in the Argentine Sea over a ten-day period enabled synoptic observations of a significant bloom of toxic phytoplankton. Simultaneous species characterization of the bloom, along with measurements of surface currents and fronts, provided insights into its development and retention. Interdisciplinary approaches shed light on the biophysical coupling underlying the persistence and horizontal transport of harmful algal blooms in productive marine environments.
Silvan Urs Goldenberg, Ulf Riebesell, Daniel Brüggemann, Gregor Börner, Michael Sswat, Arild Folkvord, Maria Couret, Synne Spjelkavik, Nicolás Sánchez, Cornelia Jaspers, and Marta Moyano
Biogeosciences, 21, 4521–4532, https://doi.org/10.5194/bg-21-4521-2024, https://doi.org/10.5194/bg-21-4521-2024, 2024
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Ocean alkalinity enhancement (OAE) is being evaluated as a carbon dioxide removal technology for climate change mitigation. With an experiment on species communities, we show that larval and juvenile fish can be resilient to the resulting perturbation of seawater. Fish may hence recruit successfully and continue to support fisheries' production in regions of OAE. Our findings help to establish an environmentally safe operating space for this ocean-based solution.
Ewa Demianiuk, Mateusz Baca, Danijela Popović, Inès Barrenechea Angeles, Ngoc-Loi Nguyen, Jan Pawlowski, John B. Anderson, and Wojciech Majewski
EGUsphere, https://doi.org/10.5194/egusphere-2024-2824, https://doi.org/10.5194/egusphere-2024-2824, 2024
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Ancient foraminifera 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. Softly-walled foraminifera, not found in the fossil record, are especially abundant. There is no foraminiferal DNA in tills, suggesting its destruction during glacial redeposition.
Thibauld M. Béjard, Andrés S. Rigual-Hernández, Javier P. Tarruella, José-Abel Flores, Anna Sanchez-Vidal, Irene Llamas-Cano, and Francisco J. Sierro
Biogeosciences, 21, 4051–4076, https://doi.org/10.5194/bg-21-4051-2024, https://doi.org/10.5194/bg-21-4051-2024, 2024
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The Mediterranean Sea is regarded as a climate change hotspot. Documenting the population of planktonic foraminifera is crucial. In the Sicily Channel, fluxes are higher during winter and positively linked with chlorophyll a concentration and cool temperatures. A comparison with other Mediterranean sites shows the transitional aspect of the studied zone. Finally, modern populations significantly differ from those in the sediment, highlighting a possible effect of environmental change.
Skye Yunshu Tian, Martin Langer, Moriaki Yasuhara, and Chih-Lin Wei
Biogeosciences, 21, 3523–3536, https://doi.org/10.5194/bg-21-3523-2024, https://doi.org/10.5194/bg-21-3523-2024, 2024
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Through the first large-scale study of meiobenthic ostracods from the diverse and productive reef ecosystem in the Zanzibar Archipelago, Tanzania, we found that the diversity and composition of ostracod assemblages as controlled by benthic habitats and human impacts were indicative of overall reef health, and we highlighted the usefulness of ostracods as a model proxy to monitor and understand the degradation of reef ecosystems from the coral-dominated phase to the algae-dominated phase.
Julien Richirt, Satoshi Okada, Yoshiyuki Ishitani, Katsuyuki Uematsu, Akihiro Tame, Kaya Oda, Noriyuki Isobe, Toyoho Ishimura, Masashi Tsuchiya, and Hidetaka Nomaki
Biogeosciences, 21, 3271–3288, https://doi.org/10.5194/bg-21-3271-2024, https://doi.org/10.5194/bg-21-3271-2024, 2024
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We report the first benthic foraminifera with a composite test (i.e. shell) made of opal, which coats the inner part of the calcitic layer. Using comprehensive techniques, we describe the morphology and the composition of this novel opal layer and provide evidence that the opal is precipitated by the foraminifera itself. We explore the potential precipitation process and function(s) of this composite test and further discuss the possible implications for palaeoceanographic reconstructions.
Said Mohamed Hashim, Beth Wangui Waweru, and Agnes Muthumbi
Biogeosciences, 21, 2995–3006, https://doi.org/10.5194/bg-21-2995-2024, https://doi.org/10.5194/bg-21-2995-2024, 2024
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The study investigates the impact of decreasing oxygen in the ocean on macrofaunal communities using the BUS as an example. It identifies distinct shifts in community composition and feeding guilds across oxygen zones, with nematodes dominating dysoxic areas. These findings underscore the complex responses of benthic organisms to oxygen gradients, crucial for understanding ecosystem dynamics in hypoxic environments and their implications for marine biodiversity and sustainability.
Tanguy Soulié, Francesca Vidussi, Justine Courboulès, Marie Heydon, Sébastien Mas, Florian Voron, Carolina Cantoni, Fabien Joux, and Behzad Mostajir
Biogeosciences, 21, 1887–1902, https://doi.org/10.5194/bg-21-1887-2024, https://doi.org/10.5194/bg-21-1887-2024, 2024
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Due to climate change, it is projected that extreme rainfall events, which bring terrestrial matter into coastal seas, will occur more frequently in the Mediterranean region. To test the effects of runoffs of terrestrial matter on plankton communities from Mediterranean coastal waters, an in situ mesocosm experiment was conducted. The simulated runoff affected key processes mediated by plankton, such as primary production and respiration, suggesting major consequences of such events.
Chueh-Chen Tung, Yu-Shih Lin, Jian-Xiang Liao, Tzu-Hsuan Tu, James T. Liu, Li-Hung Lin, Pei-Ling Wang, and Chih-Lin Wei
Biogeosciences, 21, 1729–1756, https://doi.org/10.5194/bg-21-1729-2024, https://doi.org/10.5194/bg-21-1729-2024, 2024
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This study contrasts seabed food webs between a river-fed, high-energy canyon and the nearby slope. We show higher organic carbon (OC) flows through the canyon than the slope. Bacteria dominated the canyon, while seabed fauna contributed more to the slope food web. Due to frequent perturbation, the canyon had a lower faunal stock and OC recycling. Only 4 % of the seabed OC flux enters the canyon food web, suggesting a significant role of the river-fed canyon in transporting OC to the deep sea.
Joost de Vries, Fanny Monteiro, Gerald Langer, Colin Brownlee, and Glen Wheeler
Biogeosciences, 21, 1707–1727, https://doi.org/10.5194/bg-21-1707-2024, https://doi.org/10.5194/bg-21-1707-2024, 2024
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Calcifying phytoplankton (coccolithophores) utilize a life cycle in which they can grow and divide into two different phases. These two phases (HET and HOL) vary in terms of their physiology and distributions, with many unknowns about what the key differences are. Using a combination of lab experiments and model simulations, we find that nutrient storage is a critical difference between the two phases and that this difference allows them to inhabit different nitrogen input regimes.
Theodor Kindeberg, Karl Michael Attard, Jana Hüller, Julia Müller, Cintia Organo Quintana, and Eduardo Infantes
Biogeosciences, 21, 1685–1705, https://doi.org/10.5194/bg-21-1685-2024, https://doi.org/10.5194/bg-21-1685-2024, 2024
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Seagrass meadows are hotspots for biodiversity and productivity, and planting seagrass is proposed as a tool for mitigating biodiversity loss and climate change. We assessed seagrass planted in different years and found that benthic oxygen and carbon fluxes increased as the seabed developed from bare sediments to a mature seagrass meadow. This increase was partly linked to the diversity of colonizing algae which increased the light-use efficiency of the seagrass meadow community.
Anna-Selma van der Kaaden, Sandra R. Maier, Siluo Chen, Laurence H. De Clippele, Evert de Froe, Theo Gerkema, Johan van de Koppel, Furu Mienis, Christian Mohn, Max Rietkerk, Karline Soetaert, and Dick van Oevelen
Biogeosciences, 21, 973–992, https://doi.org/10.5194/bg-21-973-2024, https://doi.org/10.5194/bg-21-973-2024, 2024
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Combining hydrodynamic simulations and annotated videos, we separated which hydrodynamic variables that determine reef cover are engineered by cold-water corals and which are not. Around coral mounds, hydrodynamic zones seem to create a typical reef zonation, restricting corals from moving deeper (the expected response to climate warming). But non-engineered downward velocities in winter (e.g. deep winter mixing) seem more important for coral reef growth than coral engineering.
Xiaoke Xin, Giulia Faucher, and Ulf Riebesell
Biogeosciences, 21, 761–772, https://doi.org/10.5194/bg-21-761-2024, https://doi.org/10.5194/bg-21-761-2024, 2024
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Ocean alkalinity enhancement (OAE) is a promising approach to remove CO2 by accelerating natural rock weathering. However, some of the alkaline substances contain trace metals which could be toxic to marine life. By exposing three representative phytoplankton species to Ni released from alkaline materials, we observed varying responses of phytoplankton to nickel concentrations, suggesting caution should be taken and toxic thresholds should be avoided in OAE with Ni-rich materials.
Olmo Miguez-Salas, Angelika Brandt, Henry Knauber, and Torben Riehl
Biogeosciences, 21, 641–655, https://doi.org/10.5194/bg-21-641-2024, https://doi.org/10.5194/bg-21-641-2024, 2024
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In the deep sea, the interaction between benthic fauna (tracemakers) and substrate can be preserved as traces (i.e. lebensspuren), which are common features of seafloor landscapes, rendering them promising proxies for inferring biodiversity from marine images. No general correlation was observed between traces and benthic fauna. However, a local correlation was observed between specific stations depending on unknown tracemakers, tracemaker behaviour, and lebensspuren morphotypes.
Cale A. Miller, Pierre Urrutti, Jean-Pierre Gattuso, Steeve Comeau, Anaïs Lebrun, Samir Alliouane, Robert W. Schlegel, and Frédéric Gazeau
Biogeosciences, 21, 315–333, https://doi.org/10.5194/bg-21-315-2024, https://doi.org/10.5194/bg-21-315-2024, 2024
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This work describes an experimental system that can replicate and manipulate environmental conditions in marine or aquatic systems. Here, we show how the temperature and salinity of seawater delivered from a fjord is manipulated to experimental tanks on land. By constantly monitoring temperature and salinity in each tank via a computer program, the system continuously adjusts automated flow valves to ensure the seawater in each tank matches the targeted experimental conditions.
Rachel A. Kruft Welton, George Hoppit, Daniela N. Schmidt, James D. Witts, and Benjamin C. Moon
Biogeosciences, 21, 223–239, https://doi.org/10.5194/bg-21-223-2024, https://doi.org/10.5194/bg-21-223-2024, 2024
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We conducted a meta-analysis of known experimental literature examining how marine bivalve growth rates respond to climate change. Growth is usually negatively impacted by climate change. Bivalve eggs/larva are generally more vulnerable than either juveniles or adults. Available data on the bivalve response to climate stressors are biased towards early growth stages (commercially important in the Global North), and many families have only single experiments examining climate change impacts.
Vincent Mouchi, Christophe Pecheyran, Fanny Claverie, Cécile Cathalot, Marjolaine Matabos, Yoan Germain, Olivier Rouxel, Didier Jollivet, Thomas Broquet, and Thierry Comtet
Biogeosciences, 21, 145–160, https://doi.org/10.5194/bg-21-145-2024, https://doi.org/10.5194/bg-21-145-2024, 2024
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The impact of deep-sea mining will depend critically on the ability of larval dispersal of hydrothermal mollusks to connect and replenish natural populations. However, assessing connectivity is extremely challenging, especially in the deep sea. Here, we investigate the potential of using the chemical composition of larval shells to discriminate larval origins between multiple hydrothermal sites in the southwest Pacific. Our results confirm that this method can be applied with high accuracy.
Anna-Marie Winter, Nadezda Vasilyeva, and Artem Vladimirov
Biogeosciences, 20, 3683–3716, https://doi.org/10.5194/bg-20-3683-2023, https://doi.org/10.5194/bg-20-3683-2023, 2023
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There is an increasing number of fish in poor state, and many do not recover, even when fishing pressure is ceased. An Allee effect can hinder population recovery because it suppresses the fish's productivity at low abundance. With a model fitted to 17 Atlantic cod stocks, we find that ocean warming and fishing can cause an Allee effect. If present, the Allee effect hinders fish recovery. This shows that Allee effects are dynamic, not uncommon, and calls for precautionary management measures.
Afrah Alothman, Daffne López-Sandoval, Carlos M. Duarte, and Susana Agustí
Biogeosciences, 20, 3613–3624, https://doi.org/10.5194/bg-20-3613-2023, https://doi.org/10.5194/bg-20-3613-2023, 2023
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This study investigates bacterial dissolved inorganic carbon (DIC) fixation in the Red Sea, an oligotrophic ecosystem, using stable-isotope labeling and spectroscopy. The research reveals that bacterial DIC fixation significantly contributes to total DIC fixation, in the surface and deep water. The study demonstrates that as primary production decreases, the role of bacterial DIC fixation increases, emphasizing its importance with photosynthesis in estimating oceanic carbon dioxide production.
Arianna Zampollo, Thomas Cornulier, Rory O'Hara Murray, Jacqueline Fiona Tweddle, James Dunning, and Beth E. Scott
Biogeosciences, 20, 3593–3611, https://doi.org/10.5194/bg-20-3593-2023, https://doi.org/10.5194/bg-20-3593-2023, 2023
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This paper highlights the use of the bottom mixed layer depth (BMLD: depth between the end of the pycnocline and the mixed layer below) to investigate subsurface Chlorophyll a (a proxy of primary production) in temperate stratified shelf waters. The strict correlation between subsurface Chl a and BMLD becomes relevant in shelf-productive waters where multiple stressors (e.g. offshore infrastructure) will change the stratification--mixing balance and related carbon fluxes.
Marco Fusi, Sylvain Rigaud, Giovanna Guadagnin, Alberto Barausse, Ramona Marasco, Daniele Daffonchio, Julie Régis, Louison Huchet, Capucine Camin, Laura Pettit, Cristina Vina-Herbon, and Folco Giomi
Biogeosciences, 20, 3509–3521, https://doi.org/10.5194/bg-20-3509-2023, https://doi.org/10.5194/bg-20-3509-2023, 2023
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Oxygen availability in marine water and freshwater is very variable at daily and seasonal scales. The dynamic nature of oxygen fluctuations has important consequences for animal and microbe physiology and ecology, yet it is not fully understood. In this paper, we showed the heterogeneous nature of the aquatic oxygen landscape, which we defined here as the
oxyscape, and we addressed the importance of considering the oxyscape in the modelling and managing of aquatic ecosystems.
Anne L. Morée, Tayler M. Clarke, William W. L. Cheung, and Thomas L. Frölicher
Biogeosciences, 20, 2425–2454, https://doi.org/10.5194/bg-20-2425-2023, https://doi.org/10.5194/bg-20-2425-2023, 2023
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Ocean temperature and oxygen shape marine habitats together with species’ characteristics. We calculated the impacts of projected 21st-century warming and oxygen loss on the contemporary habitat volume of 47 marine species and described the drivers of these impacts. Most species lose less than 5 % of their habitat at 2 °C of global warming, but some species incur losses 2–3 times greater than that. We also calculate which species may be most vulnerable to climate change and why this is the case.
Markus A. Min, David M. Needham, Sebastian Sudek, Nathan Kobun Truelove, Kathleen J. Pitz, Gabriela M. Chavez, Camille Poirier, Bente Gardeler, Elisabeth von der Esch, Andrea Ludwig, Ulf Riebesell, Alexandra Z. Worden, and Francisco P. Chavez
Biogeosciences, 20, 1277–1298, https://doi.org/10.5194/bg-20-1277-2023, https://doi.org/10.5194/bg-20-1277-2023, 2023
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Emerging molecular methods provide new ways of understanding how marine communities respond to changes in ocean conditions. Here, environmental DNA was used to track the temporal evolution of biological communities in the Peruvian coastal upwelling system and in an adjacent enclosure where upwelling was simulated. We found that the two communities quickly diverged, with the open ocean being one found during upwelling and the enclosure evolving to one found under stratified conditions.
Wojciech Majewski, Witold Szczuciński, and Andrew J. Gooday
Biogeosciences, 20, 523–544, https://doi.org/10.5194/bg-20-523-2023, https://doi.org/10.5194/bg-20-523-2023, 2023
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We studied foraminifera living in the fjords of South Georgia, a sub-Antarctic island sensitive to climate change. As conditions in water and on the seafloor vary, different associations of these microorganisms dominate far inside, in the middle, and near fjord openings. Assemblages in inner and middle parts of fjords are specific to South Georgia, but they may become widespread with anticipated warming. These results are important for interpretating fossil records and monitoring future change.
Allanah Joy Paul, Lennart Thomas Bach, Javier Arístegui, Elisabeth von der Esch, Nauzet Hernández-Hernández, Jonna Piiparinen, Laura Ramajo, Kristian Spilling, and Ulf Riebesell
Biogeosciences, 19, 5911–5926, https://doi.org/10.5194/bg-19-5911-2022, https://doi.org/10.5194/bg-19-5911-2022, 2022
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We investigated how different deep water chemistry and biology modulate the response of surface phytoplankton communities to upwelling in the Peruvian coastal zone. Our results show that the most influential drivers were the ratio of inorganic nutrients (N : P) and the microbial community present in upwelling source water. These led to unexpected and variable development in the phytoplankton assemblage that could not be predicted by the amount of inorganic nutrients alone.
Hanna M. Kauko, Philipp Assmy, Ilka Peeken, Magdalena Różańska-Pluta, Józef M. Wiktor, Gunnar Bratbak, Asmita Singh, Thomas J. Ryan-Keogh, and Sebastien Moreau
Biogeosciences, 19, 5449–5482, https://doi.org/10.5194/bg-19-5449-2022, https://doi.org/10.5194/bg-19-5449-2022, 2022
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This article studies phytoplankton (microscopic
plantsin the ocean capable of photosynthesis) in Kong Håkon VII Hav in the Southern Ocean. Different species play different roles in the ecosystem, and it is therefore important to assess the species composition. We observed that phytoplankton blooms in this area are formed by large diatoms with strong silica armors, which can lead to high silica (and sometimes carbon) export to depth and be important prey for krill.
Chloe Carbonne, Steeve Comeau, Phoebe T. W. Chan, Keyla Plichon, Jean-Pierre Gattuso, and Núria Teixidó
Biogeosciences, 19, 4767–4777, https://doi.org/10.5194/bg-19-4767-2022, https://doi.org/10.5194/bg-19-4767-2022, 2022
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For the first time, our study highlights the synergistic effects of a 9-month warming and acidification combined stress on the early life stages of a Mediterranean azooxanthellate coral, Astroides calycularis. Our results predict a decrease in dispersion, settlement, post-settlement linear extention, budding and survival under future global change and that larvae and recruits of A. calycularis are stages of interest for this Mediterranean coral resistance, resilience and conservation.
Iris E. Hendriks, Anna Escolano-Moltó, Susana Flecha, Raquel Vaquer-Sunyer, Marlene Wesselmann, and Núria Marbà
Biogeosciences, 19, 4619–4637, https://doi.org/10.5194/bg-19-4619-2022, https://doi.org/10.5194/bg-19-4619-2022, 2022
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Seagrasses are marine plants with the capacity to act as carbon sinks due to their high primary productivity, using carbon for growth. This capacity can play a key role in climate change mitigation. We compiled and published data showing that two Mediterranean seagrass species have different metabolic rates, while the study method influences the rates of the measurements. Most communities act as carbon sinks, while the western basin might be more productive than the eastern Mediterranean.
Raúl Tapia, Sze Ling Ho, Hui-Yu Wang, Jeroen Groeneveld, and Mahyar Mohtadi
Biogeosciences, 19, 3185–3208, https://doi.org/10.5194/bg-19-3185-2022, https://doi.org/10.5194/bg-19-3185-2022, 2022
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We report census counts of planktic foraminifera in depth-stratified plankton net samples off Indonesia. Our results show that the vertical distribution of foraminifera species routinely used in paleoceanographic reconstructions varies in hydrographically distinct regions, likely in response to food availability. Consequently, the thermal gradient based on mixed layer and thermocline dwellers also differs for these regions, suggesting potential implications for paleoceanographic reconstructions.
Ricardo González-Gil, Neil S. Banas, Eileen Bresnan, and Michael R. Heath
Biogeosciences, 19, 2417–2426, https://doi.org/10.5194/bg-19-2417-2022, https://doi.org/10.5194/bg-19-2417-2022, 2022
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In oceanic waters, the accumulation of phytoplankton biomass in winter, when light still limits growth, is attributed to a decrease in grazing as the mixed layer deepens. However, in coastal areas, it is not clear whether winter biomass can accumulate without this deepening. Using 21 years of weekly data, we found that in the Scottish coastal North Sea, the seasonal increase in light availability triggers the accumulation of phytoplankton biomass in winter, when light limitation is strongest.
Birgit Koehler, Mårten Erlandsson, Martin Karlsson, and Lena Bergström
Biogeosciences, 19, 2295–2312, https://doi.org/10.5194/bg-19-2295-2022, https://doi.org/10.5194/bg-19-2295-2022, 2022
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Understanding species richness patterns remains a challenge for biodiversity management. We estimated fish species richness over a coastal salinity gradient (3–32) with a method that allowed comparing data from various sources. Species richness was 3-fold higher at high vs. low salinity, and salinity influenced species’ habitat preference, mobility and feeding type. If climate change causes upper-layer freshening of the Baltic Sea, further shifts along the identified patterns may be expected.
Uri Obolski, Thomas Wichard, Alvaro Israel, Alexander Golberg, and Alexander Liberzon
Biogeosciences, 19, 2263–2271, https://doi.org/10.5194/bg-19-2263-2022, https://doi.org/10.5194/bg-19-2263-2022, 2022
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The algal genus Ulva plays a major role in coastal ecosystems worldwide and is a promising prospect as an seagriculture crop. A substantial hindrance to cultivating Ulva arises from sudden sporulation, leading to biomass loss. This process is not yet well understood. Here, we characterize the dynamics of Ulva growth, considering the potential impact of sporulation inhibitors, using a mathematical model. Our findings are an essential step towards understanding the dynamics of Ulva growth.
Emanuela Fanelli, Samuele Menicucci, Sara Malavolti, Andrea De Felice, and Iole Leonori
Biogeosciences, 19, 1833–1851, https://doi.org/10.5194/bg-19-1833-2022, https://doi.org/10.5194/bg-19-1833-2022, 2022
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Zooplankton play a key role in marine ecosystems, forming the base of the marine food web and a link between primary producers and higher-order consumers, such as fish. This aspect is crucial in the Adriatic basin, one of the most productive and overexploited areas of the Mediterranean Sea. A better understanding of community and food web structure and their response to water mass changes is essential under a global warming scenario, as zooplankton are sensitive to climate change.
Masaya Yoshikai, Takashi Nakamura, Rempei Suwa, Sahadev Sharma, Rene Rollon, Jun Yasuoka, Ryohei Egawa, and Kazuo Nadaoka
Biogeosciences, 19, 1813–1832, https://doi.org/10.5194/bg-19-1813-2022, https://doi.org/10.5194/bg-19-1813-2022, 2022
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This study presents a new individual-based vegetation model to investigate salinity control on mangrove productivity. The model incorporates plant hydraulics and tree competition and predicts unique and complex patterns of mangrove forest structures that vary across soil salinity gradients. The presented model does not hold an empirical expression of salinity influence on productivity and thus may provide a better understanding of mangrove forest dynamics in future climate change.
Coulson A. Lantz, William Leggat, Jessica L. Bergman, Alexander Fordyce, Charlotte Page, Thomas Mesaglio, and Tracy D. Ainsworth
Biogeosciences, 19, 891–906, https://doi.org/10.5194/bg-19-891-2022, https://doi.org/10.5194/bg-19-891-2022, 2022
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Coral bleaching events continue to drive the degradation of coral reefs worldwide. In this study we measured rates of daytime coral reef community calcification and photosynthesis during a reef-wide bleaching event. Despite a measured decline in coral health across several taxa, there was no change in overall daytime community calcification and photosynthesis. These findings highlight potential limitations of these community-level metrics to reflect actual changes in coral health.
Hyewon Heather Kim, Jeff S. Bowman, Ya-Wei Luo, Hugh W. Ducklow, Oscar M. Schofield, Deborah K. Steinberg, and Scott C. Doney
Biogeosciences, 19, 117–136, https://doi.org/10.5194/bg-19-117-2022, https://doi.org/10.5194/bg-19-117-2022, 2022
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Heterotrophic marine bacteria are tiny organisms responsible for taking up organic matter in the ocean. Using a modeling approach, this study shows that characteristics (taxonomy and physiology) of bacteria are associated with a subset of ecological processes in the coastal West Antarctic Peninsula region, a system susceptible to global climate change. This study also suggests that bacteria will become more active, in particular large-sized cells, in response to changing climates in the region.
Alice E. Webb, Didier M. de Bakker, Karline Soetaert, Tamara da Costa, Steven M. A. C. van Heuven, Fleur C. van Duyl, Gert-Jan Reichart, and Lennart J. de Nooijer
Biogeosciences, 18, 6501–6516, https://doi.org/10.5194/bg-18-6501-2021, https://doi.org/10.5194/bg-18-6501-2021, 2021
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The biogeochemical behaviour of shallow reef communities is quantified to better understand the impact of habitat degradation and species composition shifts on reef functioning. The reef communities investigated barely support reef functions that are usually ascribed to conventional coral reefs, and the overall biogeochemical behaviour is found to be similar regardless of substrate type. This suggests a decrease in functional diversity which may therefore limit services provided by this reef.
Emmanuel Devred, Andrea Hilborn, and Cornelia Elizabeth den Heyer
Biogeosciences, 18, 6115–6132, https://doi.org/10.5194/bg-18-6115-2021, https://doi.org/10.5194/bg-18-6115-2021, 2021
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A theoretical model of grey seal seasonal abundance on Sable Island (SI) coupled with chlorophyll-a concentration [chl-a] measured by satellite revealed the impact of seal nitrogen fertilization on the surrounding waters of SI, Canada. The increase in seals from about 100 000 in 2003 to about 360 000 in 2018 during the breeding season is consistent with an increase in [chl-a] leeward of SI. The increase in seal abundance explains 8 % of the [chl-a] increase.
Julie Meilland, Michael Siccha, Maike Kaffenberger, Jelle Bijma, and Michal Kucera
Biogeosciences, 18, 5789–5809, https://doi.org/10.5194/bg-18-5789-2021, https://doi.org/10.5194/bg-18-5789-2021, 2021
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Planktonic foraminifera population dynamics has long been assumed to be controlled by synchronous reproduction and ontogenetic vertical migration (OVM). Due to contradictory observations, this concept became controversial. We here test it in the Atlantic ocean for four species of foraminifera representing the main clades. Our observations support the existence of synchronised reproduction and OVM but show that more than half of the population does not follow the canonical trajectory.
Cited articles
Agostini, S., Harvey, B. P., Wada, S., Kon, K., Milazzo, M., Inaba, K., and Hall-Spencer, J. M.: Ocean acidification drives community shifts towards simplified non-calcified habitats in a subtropical-temperate transition zone, Sci. Rep., 8, 11354, https://doi.org/10.1038/s41598-018-29251-7, 2018.
Aiuppa, A., Hall-Spencer, J. M., Milazzo, M., Turco, G., Caliro, S., and Di Napoli, R.: Volcanic CO2 seep geochemistry and use in understanding ocean acidification, Biogeochemistry, 152, 93–115, https://doi.org/10.1007/s10533-020-00737-9, 2021.
Alderdice, R., Suggett, D. J., Cárdenas, A., Hughes, D. J., Kühl, M., Pernice, M., and Voolstra, C. R.: Divergent expression of hypoxia response systems under deoxygenation in reef-forming corals aligns with bleaching susceptibility, Glob. Change Biol., 27, 312–326, https://doi.org/10.1111/gcb.15436, 2021.
Alongi, D. M., Sasekumar, A., Chong, V. C., Pfitzner, J., Trott, L. A., Tirendi, F., Dixon, P., and Brunskill, G. J.: Sediment accumulation and organic material flux in a managed mangrove ecosystem: Estimates of land-ocean-atmosphere exchange in peninsular Malaysia, Mar. Geol., 208, 383–402, https://doi.org/10.1016/j.margeo.2004.04.016, 2004.
Anthony, K. R. N. and Fabricius, K. E.: Shifting roles of heterotrophy and autotrophy in coral energetics under varying turbidity, J. Exp. Mar. Biol. Ecol., 252, 221–253, https://doi.org/10.1016/S0022-0981(00)00237-9, 2000.
Atkinson, M. J., Carlson, B., and Crow, G. L.: Coral growth in high-nutrient, low-pH seawater: a case study of corals cultured at the Waikiki Aquarium, Honolulu, Hawaii, Coral Reefs, 14, 215–223, https://doi.org/10.1007/BF00334344, 1995.
Barkley, H. C., Cohen, A. L., Golbuu, Y., Starczak, V. R., DeCarlo, T. M., and Shamberger, K. E. F.: Changes in coral reef communities across a natural gradient in seawater pH, Science Advances, 1, e1500328, https://doi.org/10.1126/sciadv.1500328, 2015.
Barkley, H. C., Cohen, A. L., McCorkle, D. C., and Golbuu, Y.: Mechanisms and thresholds for pH tolerance in Palau corals, J. Exp. Mar. Biol. Ecol., 489, 7–14, https://doi.org/10.1016/j.jembe.2017.01.003, 2017.
Barshis, D. J., Ladner, J. T., Oliver, T. A., Seneca, F. O., Traylor-Knowles, N., and Palumbi, S. R.: Genomic basis for coral resilience to climate change, P. Natl. Acad. Sci. USA, 110, 1387–1392, https://doi.org/10.1073/pnas.1210224110, 2013.
Bellworthy, J. and Fine, M.: Warming resistant corals from the Gulf of Aqaba live close to their cold-water bleaching threshold, 1843, PeerJ, 9, e11100, https://doi.org/10.7717/peerj.11100, 2021.
Benzoni, F., Houlbrèque, F., André, L. V., and Payri, C.: Plan d'action rapide et adaptatif en cas de blanchissement corallien: Le cas de la Nouvelle-Calédonie, épisode 2016, synthèse, Sciences de la Mer. Biologie Marine, Rapports Scientifiques et Techniques, 6, 90, 2017.
Bertolino, M., Oprandi, A., Santini, C., Castellano, M., Pansini, M., Boyer, M., and Bavestrello, G.: Hydrothermal waters enriched in silica promote the development of a sponge community in North Sulawesi (Indonesia), European Zoological Journal, 84, 128–135, https://doi.org/10.1080/11250003.2016.1278475, 2017.
Bongiorni, L., Shafir, S., Angel, D., and Rinkevich, B.: Survival, growth and gonad development of two hermatypic corals subjected to in situ fish-farm nutrient enrichment, Mar. Ecol. Prog. Ser., 253, 137–144, https://doi.org/10.3354/meps253137, 2003.
Borges, A. V., Djenidi, S., Lacroix, G., Théate, J., Delille, B., and Frankignoulle, M.: Atmospheric CO2 flux from mangrove surrounding waters, Geophys. Res. Lett., 30, 1558, https://doi.org/10.1029/2003GL017143, 2003.
Bouillon, S., Middelburg, J. J., Dehairs, F., Borges, A. V., Abril, G., Flindt, M. R., Ulomi, S., and Kristensen, E.: Importance of intertidal sediment processes and porewater exchange on the water column biogeochemistry in a pristine mangrove creek (Ras Dege, Tanzania), Biogeosciences, 4, 311–322, https://doi.org/10.5194/bg-4-311-2007, 2007.
Bouillon, S., Yambélé, A., Gillikin, D. P., Teodoru, C., Darchambeau, F., Lambert, T., and Borges, A. V.: Contrasting biogeochemical characteristics of the Oubangui River and tributaries (Congo River basin), Sci. Rep., 4, 5402, https://doi.org/10.1038/srep05402, 2014.
Boyd, P. W., Cornwall, C. E., Davison, A., Doney, S. C., Fourquez, M., Hurd, C. L., Lima, I. D., and McMinn, A.: Biological responses to environmental heterogeneity under future ocean conditions, Glob. Change Biol., 22, 2633–2650, https://doi.org/10.1111/gcb.13287, 2016.
Burger, F. A., John, J. G., and Frölicher, T. L.: Increase in ocean acidity variability and extremes under increasing atmospheric CO2, Biogeosciences, 17, 4633–4662, https://doi.org/10.5194/bg-17-4633-2020, 2020.
Calcinai, B., Bastari, A., Makapedua, D. M., and Cerrano, C.: Mangrove sponges from Bangka Island (North Sulawesi, Indonesia) with the description of a new species, J. Mar. Biol. Assoc. UK, 97, 1417–1422, https://doi.org/10.1017/S0025315416000710, 2017.
Call, M., Maher, D. T., Santos, I. R., Ruiz-Halpern, S., Mangion, P., Sanders, C. J., Erler, D. V., Oakes, J. M., Rosentreter, J., Murray, R., and Eyre, B. D.: Spatial and temporal variability of carbon dioxide and methane fluxes over semi-diurnal and spring-neap-spring timescales in a mangrove creek, Geochim. Cosmochim. Ac., 150, 211–225, https://doi.org/10.1016/j.gca.2014.11.023, 2015.
Camp, E. F., Nitschke, M. R., Rodolfo-Metalpa, R., Houlbreque, F., Gardner, S. G., Smith, D. J., Zampighi, M., and Suggett, D. J.: Reef-building corals thrive within hot-acidified and deoxygenated waters, Sci. Rep., 7, 2434, https://doi.org/10.1038/s41598-017-02383-y, 2017.
Camp, E. F., Schoepf, V., Mumby, P. J., Hardtke, L. A., Rodolfo-Metalpa, R., Smith, D. J., and Suggett, D. J.: The future of coral reefs subject to rapid climate change: Lessons from natural extreme environments, Frontiers in Marine Science, 5, 4, https://doi.org/10.3389/fmars.2018.00004, 2018.
Camp, E. F., Edmondson, J., Doheny, A., Rumney, J., Grima, A. J., Huete, A., and Suggett, D. J.: Mangrove lagoons of the Great Barrier Reef support coral populations persisting under extreme environmental conditions, Mar. Ecol. Prog. Ser., 625, 1–14, https://doi.org/10.3354/meps13073, 2019.
Cárdenas, P. and Rapp, H. T.: Disrupted spiculogenesis in deep-water Geodiidae (Porifera, Demospongiae) growing in shallow waters, Invertebr. Biol., 132, 173–194, https://doi.org/10.1111/ivb.12027, 2013.
Carstensen, J. and Duarte, C. M.: Drivers of pH Variability in Coastal Ecosystems, Environ. Sci. Technol., 53, 4020–4029, https://doi.org/10.1021/acs.est.8b03655, 2019.
Castillo, K. D., Ries, J. B., Weiss, J. M., and Lima, F. P.: Decline of forereef corals in response to recent warming linked to history of thermal exposure, Nat. Clim. Change, 2, 756–760, https://doi.org/10.1038/nclimate1577, 2012.
Cauwet, G.: HTCO method for dissolved organic carbon analysis in seawater: influence of catalyst on blank estimation, Mar. Chem., 47, 55–64, https://doi.org/10.1016/0304-4203(94)90013-2, 1994.
Codiga, D. L.: Unified Tidal Analysis and Prediction Using the UTide Matlab Functions, September, 59, https://doi.org/10.13140/RG.2.1.3761.2008, 2011.
Coles, S. L. and Jokiel, P. L.: Effects of temperature on photosynthesis and respiration in hermatypic corals, Mar. Biol., 43, 209–216, https://doi.org/10.1007/BF00402313, 1977.
Comeau, S., Edmunds, P. J., Spindel, N. B., and Carpenter, R. C.: The responses of eight coral reef calcifiers to increasing partial pressure of CO2 do not exhibit a tipping point, Limnol. Oceanogr., 58, 388–398, https://doi.org/10.4319/lo.2013.58.1.0388, 2013.
Comeau, S., Cornwall, C. E., Pupier, C. A., DeCarlo, T. M., Alessi, C., Trehern, R., and McCulloch, M. T.: Flow-driven micro-scale pH variability affects the physiology of corals and coralline algae under ocean acidification, Sci. Rep., 9, 12829, https://doi.org/10.1038/s41598-019-49044-w, 2019.
Cornwall, C. E., Boyd, P. W., McGraw, C. M., Hepburn, C. D., Pilditch, C. A., Morris, J. N., Smith, A. M., and Hurd, C. L.: Diffusion boundary layers ameliorate the negative effects of ocean acidification on the temperate coralline macroalga Arthrocardia corymbosa, PLoS ONE, 9, e97235, https://doi.org/10.1371/journal.pone.0097235, 2014.
Cornwall, C. E., Comeau, S., DeCarlo, T. M., Moore, B., D'Alexis, Q., and McCulloch, M. T.: Resistance of corals and coralline algae to ocean acidification: Physiological control of calcification under natural pH variability, P. Roy. Soc. B-Biol. Sci., 285, 20181168, https://doi.org/10.1098/rspb.2018.1168, 2018.
Cornwall, C. E., Comeau, S., DeCarlo, T. M., Larcombe, E., Moore, B., Giltrow, K., Puerzer, F., D'Alexis, Q., and McCulloch, M. T.: A coralline alga gains tolerance to ocean acidification over multiple generations of exposure, Nat. Clim. Change, 10, 143–146, https://doi.org/10.1038/s41558-019-0681-8, 2020.
Craig, P., Birkeland, C., and Belliveau, S.: High temperatures tolerated by a diverse assemblage of shallow-water corals in American Samoa, Coral Reefs, 20, 185–189, https://doi.org/10.1007/s003380100159, 2001.
Crook, E. D., Cohen, A. L., Rebolledo-Vieyra, M., Hernandez, L., and Paytan, A.: Reduced calcification and lack of acclimatization by coral colonies growing in areas of persistent natural acidification, P. Natl. Acad. Sci. USA, 110, 11044–11049, https://doi.org/10.1073/pnas.1301589110, 2013.
Crossland, C., Hatcher, B., Atkinson, M., and Smith, S.: Dissolved nutrients of a high-latitude coral reef, Houtman Abrolhos Islands, Western Australia, Mar. Ecol. Prog. Ser., 14, 159–163, https://doi.org/10.3354/meps014159, 1984.
Dandan, S. S., Falter, J. L., Lowe, R. J., and McCulloch, M. T.: Resilience of coral calcification to extreme temperature variations in the Kimberley region, northwest Australia, Coral Reefs, 34, 11044–11049, https://doi.org/10.1007/s00338-015-1335-6, 2015.
D'Angelo, C. and Wiedenmann, J.: Impacts of nutrient enrichment on coral reefs: New perspectives and implications for coastal management and reef survival, Curr. Opin. Env. Sust., 7, 82–93, https://doi.org/10.1016/j.cosust.2013.11.029, 2014.
Davis, G. E.: A century of natural change in coral distribution at the Dry Tortugas: a comparison of reef maps from 1881 and 1976., B. Mar. Sci., 29, 790, https://doi.org/10.1016/0198-0254(82)90301-6, 1982.
DeCarlo, T. M., Harrison, H. B., Gajdzik, L., Alaguarda, D., Rodolfo-Metalpa, R., D'Olivo, J., Liu, G., Patalwala, D., and McCulloch, M. T.: Acclimatization of massive reef-building corals to consecutive heatwaves, P. Roy. Soc. B-Biol. Sci., 286, 20190235, https://doi.org/10.1098/rspb.2019.0235, 2019.
Dittmar, T., Hertkorn, N., Kattner, G., and Lara, R. J.: Mangroves, a major source of dissolved organic carbon to the oceans, Global Biogeochem. Cy., 20, GB1012, https://doi.org/10.1029/2005GB002570, 2006.
Dubuc, A., Baker, R., Marchand, C., Waltham, N. J., and Sheaves, M.: Hypoxia in mangroves: occurrence and impact on valuable tropical fish habitat, Biogeosciences, 16, 3959–3976, https://doi.org/10.5194/bg-16-3959-2019, 2019.
Dufault, A. M., Cumbo, V. R., Fan, T. Y., and Edmunds, P. J.: Effects of diurnally oscillating pCO2 on the calcification and survival of coral recruits, P. Roy. Soc. B-Biol. Sci., 279, 2951–2958, https://doi.org/10.1098/rspb.2011.2545, 2012.
Enochs, I. C., Manzello, D. P., Donham, E. M., Kolodziej, G., Okano, R., Johnston, L., Young, C., Iguel, J., Edwards, C. B., Fox, M. D., Valentino, L., Johnson, S., Benavente, D., Clark, S. J., Carlton, R., Burton, T., Eynaud, Y., and Price, N. N.: Shift from coral to macroalgae dominance on a volcanically acidified reef, Nat. Clim. Change, 5, 1083–1088, https://doi.org/10.1038/nclimate2758, 2015.
Ezzat, L., Towle, E., Irisson, J. O., Langdon, C., and Ferrier-Pagès, C.: The relationship between heterotrophic feeding and inorganic nutrient availability in the scleractinian coral T. reniformis under a short-term temperature increase, Limnol. Oceanogr., 61, 89–102, https://doi.org/10.1002/lno.10200, 2016a.
Ezzat, L., Maguer, J. F., Grover, R., and Ferrier-Pagès, C.: Limited phosphorus availability is the Achilles heel of tropical reef corals in a warming ocean, Sci. Rep., 6, 31768, https://doi.org/10.1038/srep31768, 2016b.
Ezzat, L., Maguer, J. F., Grover, R., Rottier, C., Tremblay, P., and Ferrier-Pagès, C.: Nutrient starvation impairs the trophic plasticity of reef-building corals under ocean warming, Funct. Ecol., 33, 643–653, https://doi.org/10.1111/1365-2435.13285, 2019.
Fabricius, K. E., Langdon, C., Uthicke, S., Humphrey, C., Noonan, S., De'ath, G., Okazaki, R., Muehllehner, N., Glas, M. S., and Lough, J. M.: Losers and winners in coral reefs acclimatized to elevated carbon dioxide concentrations, Nat. Clim. Change, 1, 165–169, https://doi.org/10.1038/nclimate1122, 2011.
Fabricius, K. E., De'ath, G., Noonan, S., and Uthicke, S.: Ecological effects of ocean acidification and habitat complexity on reef-associated macroinvertebrate communities, P. Roy. Soc. B-Biol. Sci., 281, 20132479, https://doi.org/10.1098/rspb.2013.2479, 2013.
Ferrier-Pagès, C., Gattuso, J. P., and Jaubert, J.: Effect of small variations in salinity on the rates of photosynthesis and respiration of the zooxanthellate coral Stylophora pistillata, Mar. Ecol. Prog. Ser., 181, 309–314, https://doi.org/10.3354/meps181309, 1999.
Fitt, W. K., Brown, B. E., Warner, M. E., and Dunne, R. P.: Coral bleaching: Interpretation of thermal tolerance limits and thermal thresholds in tropical corals, Coral Reefs, 20, 51–65, https://doi.org/10.1007/s003380100146, 2001.
Furnas, M. J., Mitchell, A. W., and Skuza, M.: Nitrogen and phosphorus budgets for the central Great Barrier Reef shelf. Great Barrier Reef Marine Park Authority, available at: http://hdl.handle.net/11017/240 (last access: 13 September 2021), 1995.
Gattuso, J. P., Magnan, A., Billé, R., Cheung, W. W. L., Howes, E. L., Joos, F., Allemand, D., Bopp, L., Cooley, S. R., Eakin, C. M., Hoegh-Guldberg, O., Kelly, R. P., Pörtner, H. O., Rogers, A. D., Baxter, J. M., Laffoley, D., Osborn, D., Rankovic, A., Rochette, J., Sumaila, U. R., Treyer, S., and Turley, C.: Contrasting futures for ocean and society from different anthropogenic CO2 emissions scenarios, Science, 349, aac4722, https://doi.org/10.1126/science.aac4722, 2015.
Gleeson, J., Santos, I. R., Maher, D. T., and Golsby-Smith, L.: Groundwater-surface water exchange in a mangrove tidal creek: Evidence from natural geochemical tracers and implications for nutrient budgets, Mar. Chem., 156, 27–37, https://doi.org/10.1016/j.marchem.2013.02.001, 2013.
Golbuu, Y., Gouezo, M., Kurihara, H., Rehm, L., and Wolanski, E.: Long-term isolation and local adaptation in Palau's Nikko Bay help corals thrive in acidic waters, Coral Reefs, 35, 909–918, https://doi.org/10.1007/s00338-016-1457-5, 2016.
Grover, R., Maguer, J. F., Allemand, D., and Ferrier-Pagès, C.: Nitrate uptake in the scleractinian coral Stylophora pistillata, Limnol. Oceanogr., 48, 2266–2274, https://doi.org/10.4319/lo.2003.48.6.2266, 2003.
Haas, A. F., Smith, J. E., Thompson, M., and Deheyn, D. D.: Effects of reduced dissolved oxygen concentrations on physiology and fluorescence of hermatypic corals and benthic algae, PeerJ, 2, e235, https://doi.org/10.7717/peerj.235, 2014.
Hall-Spencer, J. M., Rodolfo-Metalpa, R., Martin, S., Ransome, E., Fine, M., Turner, S. M., Rowley, S. J., Tedesco, D., and Buia, M. C.: Volcanic carbon dioxide vents show ecosystem effects of ocean acidification, Nature, 454, 96–99, https://doi.org/10.1038/nature07051, 2008.
Hill, J. and Wilkinson, C.: Methods for ecological monitoring of coral reefs, Australian Institute of Marine Science, Townsville, 117, 2004.
Hoegh-Guldberg, O.: Climate change, coral bleaching and the future of the world's coral reefs, Mar. Freshwater Res., 50, 839–866, https://doi.org/10.1071/MF99078, 1999.
Hoegh-Guldberg, O. and Fine, M.: Low temperatures cause coral bleaching, Coral Reefs, 23, 444, https://doi.org/10.1007/s00338-004-0401-2, 2004.
Hoegh-Guldberg, O. and Smith, G. J.: The effect of sudden changes in temperature, light and salinity on the population density and export of zooxanthellae from the reef corals Stylophora pistillata Esper and Seriatopora hystrix Dana, J. Exp. Mar. Biol. Ecol., 129, 279–303, https://doi.org/10.1016/0022-0981(89)90109-3, 1989.
Hoegh-Guldberg, O., Fine, M., Skirving, W., Johnstone, R., Dove, S., and Strong, A.: Coral bleaching following wintry weather, Limnol. Oceanogr., 50, 265–271, https://doi.org/10.4319/lo.2005.50.1.0265, 2005.
Holmes, R. M., Aminot, A., Kérouel, R., Hooker, B. A., and Peterson, B. J.: A simple and precise method for measuring ammonium in marine and freshwater ecosystems, Can. J. Fish. Aquat. Sci., 56, 1801–1808, https://doi.org/10.1139/f99-128, 1999.
Hooper, J. N. A. and Van Soest, R. W. M.: Systema Porifera: A Guide to the Classification of Sponges, Systema Porifera, Springer, Boston, MA, 1–7, https://doi.org/10.1007/978-1-4615-0747-5_1, 2002.
Hughes, D. J., Alderdice, R., Cooney, C., Kühl, M., Pernice, M., Voolstra, C. R., and Suggett, D. J.: Coral reef survival under accelerating ocean deoxygenation, Nat. Clim. Change, 10, 296–307, https://doi.org/10.1038/s41558-020-0737-9, 2020.
Hughes, T. P., Anderson, K. D., Connolly, S. R., Heron, S. F., Kerry, J. T., Lough, J. M., Baird, A. H., Baum, J. K., Berumen, M. L., Bridge, T. C., Claar, D. C., Eakin, C. M., Gilmour, J. P., Graham, N. A. J., Harrison, H., Hobbs, J. P. A., Hoey, A. S., Hoogenboom, M., Lowe, R. J., McCulloch, M. T., Pandolfi, J. M., Pratchett, M., Schoepf, V., Torda, G., and Wilson, S. K.: Spatial and temporal patterns of mass bleaching of corals in the Anthropocene, Science, 359, 80–83, https://doi.org/10.1126/science.aan8048, 2018.
Hurd, C. L.: Slow-flow habitats as refugia for coastal calcifiers from ocean acidification, J. Phycol., 51, 599–605, https://doi.org/10.1111/jpy.12307, 2015.
Iglesias-Prieto, R., Galindo-Martínez, C. T., Enríquez, S., and Carricart-Ganivet, J. P.: Attributing reductions in coral calcification to the saturation state of aragonite, comments on the effects of persistent natural acidification, P. Natl. Acad. Sci. USA, 111, E300–E301, https://doi.org/10.1073/pnas.1318521111, 2014.
IPCC: Synthesis Report. Contribution of working groups I. II and III to the fifth assessment report of the intergovernmental panel on climate change, 151.10.1017, 2014.
Jacquet, S., Delesalle, B., Torréton, J. P., and Blanchot, J.: Response of phytoplankton communities to increased anthropogenic influences (southwestern lagoon, New Caledonia), Mar. Ecol. Prog. Ser., 320, 65–78, https://doi.org/10.3354/meps320065, 2006.
Jokiel, P. L., Hunter, C. L., Taguchi, S., and Watarai, L.: Ecological impact of a fresh-water “reef kill” in Kaneohe Bay, Oahu, Hawaii, Coral Reefs, 12, 177–184, https://doi.org/10.1007/BF00334477, 1993.
Justić, D., Rabalais, N. N., Turner, R. E., and Dortch, Q.: Changes in nutrient structure of river-dominated coastal waters: Stoichiometric nutrient balance and its consequences, Estuar. Coast. Shelf S., 40, 339–356, https://doi.org/10.1016/S0272-7714(05)80014-9, 1995.
Kapsenberg, L. and Cyronak, T.: Ocean acidification refugia in variable environments, Glob. Change Biol., 25, 3201–3214, https://doi.org/10.1111/gcb.14730, 2019.
Kemp, D. W., Oakley, C. A., Thornhill, D. J., Newcomb, L. A., Schmidt, G. W., and Fitt, W. K.: Catastrophic mortality on inshore coral reefs of the Florida Keys due to severe low-temperature stress, Glob. Change Biol., 17, 3468–3477, https://doi.org/10.1111/j.1365-2486.2011.02487.x, 2011.
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.
Kroeker, K. J., Micheli, F., Gambi, M. C., and Martz, T. R.: Divergent ecosystem responses within a benthic marine community to ocean acidification, P. Natl. Acad. Sci. USA, 108, 14515–14520, https://doi.org/10.1073/pnas.1107789108, 2011.
Kurihara, H., Suhara, Y., Mimura, I., and Golbuu, Y.: Potential Acclimatization and Adaptive Responses of Adult and Trans-Generation Coral Larvae From a Naturally Acidified Habitat, Frontiers in Marine Science, 7, 581160, https://doi.org/10.3389/fmars.2020.581160, 2020.
Kurihara, H., Watanabe, A., Tsugi, A., Mimura, I., Hongo, C., Kawai, T., Reimer, J. D., Kimoto, K., Gouezo, M., and Golbuu, Y.: Potential local adaptation of corals at acidified and warmed Nikko Bay, Palau, Sci. Rep., 11, 11192, https://doi.org/10.1038/s41598-021-90614-8, 2021.
Kwiatkowski, L. and Orr, J. C.: Diverging seasonal extremes for ocean acidification during the twenty-first centuryr, Nat. Clim. Change, 8, 141–145, https://doi.org/10.1038/s41558-017-0054-0, 2018.
Le Nohaïc, M., Ross, C. L., Cornwall, C. E., Comeau, S., Lowe, R., McCulloch, M. T., and Schoepf, V.: Marine heatwave causes unprecedented regional mass bleaching of thermally resistant corals in northwestern Australia, Sci. Rep., 7, 14999, https://doi.org/10.1038/s41598-017-14794-y, 2017.
Leopold, A., Marchand, C., Deborde, J., and Allenbach, M.: Water Biogeochemistry of a Mangrove-Dominated Estuary Under a Semi-Arid Climate (New Caledonia), Estuar. Coast., 40, 773–791, https://doi.org/10.1007/s12237-016-0179-9, 2017.
Levas, S., Grottoli, A. G., Warner, M. E., Cai, W. J., Bauer, J., Schoepf, V., Baumann, J. H., Matsui, Y., Gearing, C., Melman, T. F., Hoadley, K. D., Pettay, D. T., Hu, X., Li, Q., Xu, H., and Wang, Y.: Organic carbon fluxes mediated by corals at elevated pCO2 and temperature, Mar. Ecol. Prog. Ser., 519, 153–164, https://doi.org/10.3354/meps11072, 2015.
Maldonado, M., Carmona, M. C., Uriz, M. J., and Cruzado, A.: Decline in Mesozoic reef-building sponges explained by silicon limitation, Nature, 401, 785–788, https://doi.org/10.1038/44560, 1999.
Manzello, D. and Lirman, D.: The photosynthetic resilience of Porites furcata to salinity disturbance, Coral Reefs, 22, 537–540, https://doi.org/10.1007/s00338-003-0327-0, 2003.
Manzello, D. P., Kleypas, J. A., Budd, D. A., Eakin, C. M., Glynn, P. W., and Langdon, C.: Poorly cemented coral reefs of the eastern tropical Pacific: Possible insights into reef development in a high-CO2 world, P. Natl. Acad. Sci. USA, 105, 10450–10455, https://doi.org/10.1073/pnas.0712167105, 2008.
Mayfield, A. B. and Gates, R. D.: Osmoregulation in anthozoan-dinoflagellate symbiosis, Comparative Biochemistry and Physiology – A Molecular and Integrative Physiology, 147, 1–10, https://doi.org/10.1016/j.cbpa.2006.12.042, 2007.
Milazzo, M., Rodolfo-Metalpa, R., Chan, V. B. S., Fine, M., Alessi, C., Thiyagarajan, V., Hall-Spencer, J. M., and Chemello, R.: Ocean acidification impairs vermetid reef recruitment, Sci. Rep., 4, 4189, https://doi.org/10.1038/srep04189, 2014.
Muthiga, N. A. and Szmant, A. M.: The effects of salinity stress on the rates of aerobic respiration and photosynthesis in the hermatypic coral Siderastrea siderea, Biol. Bull., 173, 539–551, https://doi.org/10.2307/1541699, 1987.
Nagelkerken, I., Blaber, S. J. M., Bouillon, S., Green, P., Haywood, M., Kirton, L. G., Meynecke, J. O., Pawlik, J., Penrose, H. M., Sasekumar, A., and Somerfield, P. J.: The habitat function of mangroves for terrestrial and marine fauna: A review, Aquat. Bot., 89, 155–185, https://doi.org/10.1016/j.aquabot.2007.12.007, 2008.
Nelson, H. R. and Altieri, A. H.: Oxygen: the universal currency on coral reefs, Coral Reefs, 38, 177–198, https://doi.org/10.1007/s00338-019-01765-0, 2019.
Oliver, T. A. and Palumbi, S. R.: Do fluctuating temperature environments elevate coral thermal tolerance?, Coral Reefs, 30, 429–440, https://doi.org/10.1007/s00338-011-0721-y, 2011.
Palumbi, S. R., Barshis, D. J., Traylor-Knowles, N., and Bay, R. A.: Mechanisms of reef coral resistance to future climate change, Science, 344, 895–898, https://doi.org/10.1126/science.1251336, 2014.
Paytan, A., Crook, E. D., Cohen, A. L., Martz, T. R., Takashita, Y., Rebolledo-Vieyra, M., and Hernandez, L.: Reply to Iglesias-Prieto et al.: Combined field and laboratory approaches for the study of coral calcification, P. Natl. Acad. Sci. USA, 111, E302–E303, https://doi.org/10.1073/pnas.1319572111, 2014.
Pernice, M., Meibom, A., Van Den Heuvel, A., Kopp, C., Domart-Coulon, I., Hoegh-Guldberg, O., and Dove, S.: A single-cell view of ammonium assimilation in coral-dinoflagellate symbiosis, ISME J., 6, 1314–1324, https://doi.org/10.1038/ismej.2011.196, 2012.
Pichler, T., Biscéré, T., Kinch, J., Zampighi, M., Houlbrèque, F., and Rodolfo-Metalpa, R.: Suitability of the shallow water hydrothermal system at Ambitle Island (Papua New Guinea) to study the effect of high pCO2 on coral reefs, Mar. Pollut. Bull., 138, 148–158, https://doi.org/10.1016/j.marpolbul.2018.11.003, 2019.
Pierrot, D., Lewis, E., and Wallace, D. W. R.: MS Excel program developed for CO2 system calculations, in ORNL/CDIAC-105a. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, Tennessee, 2006.
Piniak, G. A. and Brown, E. K.: Temporal variability in chlorophyll fluorescence of back-reef corals in Ofu, American Samoa, Biol. Bull., 216, 55–67, https://doi.org/10.1086/BBLv216n1p55, 2009.
Pons, L. N., Calcinai, B., and Gates, R. D.: Who's there? – First morphological and DNA barcoding catalogue of the shallow Hawai'ian sponge fauna, PLoS ONE, 12, e0189357, https://doi.org/10.1371/journal.pone.0189357, 2017.
Porter, J. W., Battey, J. F., and Smith, G. J.: Perturbation and change in coral reef communities, P. Natl. Acad. Sci. USA, 1678–1681, https://doi.org/10.1073/pnas.79.5.1678, 1982.
R Core Team: R: A language and environment for statistical computing, R Foundation for Statistical Computing, Vienna, Austria, 2018.
Raven, J. A., Wollenweber, B., and Handley, L. L.: A comparison of ammonium and nitrate as nitrogen sources for photolithotrophs, New Phytol., 121, 19–32, https://doi.org/10.1111/j.1469-8137.1992.tb01088.x, 1992.
Rivest, E. B., Comeau, S., and Cornwall, C. E.: The Role of Natural Variability in Shaping the Response of Coral Reef Organisms to Climate Change, Current Climate Change Reports, 3, 271–281, https://doi.org/10.1007/s40641-017-0082-x, 2017.
Rogers, C. S.: A unique coral community in the mangroves of Hurricane Hole, St. John, US Virgin Islands, Diversity, 9, 29, https://doi.org/10.3390/d9030029, 2017.
Rosset, S., D'Angelo, C., and Wiedenmann, J.: Ultrastructural biomarkers in symbiotic algae reflect the availability of dissolved inorganic nutrients and particulate food to the reef coral holobiont, Frontiers in Marine Science, 2, 103, https://doi.org/10.3389/fmars.2015.00103, 2015.
Rosset, S., Wiedenmann, J., Reed, A. J., and D'Angelo, C.: Phosphate deficiency promotes coral bleaching and is reflected by the ultrastructure of symbiotic dinoflagellates, Mar. Pollut. Bull., 118, 180–187, https://doi.org/10.1016/j.marpolbul.2017.02.044, 2017.
Rützler, K.: Sponges in coral reefs, in: Coral Reefs: Research Methods, edited by: Stoddart, D. R. and Johannes, R. E., Monographs on Oceanographic Methodology 5,
UNESCO, Paris, 1978.
Safaie, A., Silbiger, N. J., McClanahan, T. R., Pawlak, G., Barshis, D. J., Hench, J. L., Rogers, J. S., Williams, G. J., and Davis, K. A.: High frequency temperature variability reduces the risk of coral bleaching, Nat. Commun., 9, 1671, https://doi.org/10.1038/s41467-018-04074-2, 2018.
Saxby, T., Dennison, W. C., and Hoegh-Guldberg, O.: Photosynthetic responses of the coral Montipora digitata to cold temperature stress, Mar. Ecol. Prog. Ser., 248, 85–97, https://doi.org/10.3354/meps248085, 2003.
Schoepf, V., Stat, M., Falter, J. L., and McCulloch, M. T.: Limits to the thermal tolerance of corals adapted to a highly fluctuating, naturally extreme temperature environment, Sci. Rep., 5, 17639, https://doi.org/10.1038/srep17639, 2015.
Schoepf, V., Cornwall, C. E., Pfeifer, S. M., Carrion, S. A., Alessi, C., Comeau, S., and McCulloch, M. T.: Impacts of coral bleaching on pH and oxygen gradients across the coral concentration boundary layer: a microsensor study, Coral Reefs, 37, 1169–1180, https://doi.org/10.1007/s00338-018-1726-6, 2018.
Schoepf, V., Jung, M. U., McCulloch, M. T., White, N. E., Stat, M., and Thomas, L.: Thermally Variable, Macrotidal Reef Habitats Promote Rapid Recovery From Mass Coral Bleaching, Frontiers in Marine Science, 7, 245, https://doi.org/10.3389/fmars.2020.00245, 2020.
Shamberger, K. E. F., Lentz, S. J., and Cohen, A. L.: Low and variable ecosystem calcification in a coral reef lagoon under natural acidification, Limnol. Oceanogr., 7, 714–730, https://doi.org/10.1002/lno.10662, 2018.
Soares, M. de O.: Marginal reef paradox: A possible refuge from environmental changes?, Ocean Coast. Manage., 185, 105063, https://doi.org/10.1016/j.ocecoaman.2019.105063, 2020.
Sugimura, Y. and Suzuki, Y.: A high-temperature catalytic oxidation method for the determination of non-volatile dissolved organic carbon in seawater by direct injection of a liquid sample, Mar. Chem., 24, 105–131, https://doi.org/10.1016/0304-4203(88)90043-6, 1988.
Sunday, J. M., Fabricius, K. E., Kroeker, K. J., Anderson, K. M., Brown, N. E., Barry, J. P., Connell, S. D., Dupont, S., Gaylord, B., Hall-Spencer, J. M., Klinger, T., Milazzo, M., Munday, P. L., Russell, B. D., Sanford, E., Thiyagarajan, V., Vaughan, M. L. H., Widdicombe, S., and Harley, C. D. G.: Ocean acidification can mediate biodiversity shifts by changing biogenic habitat, Nat. Clim. Change, 7, 81–85, https://doi.org/10.1038/nclimate3161, 2017.
Szmant, A. M.: Nutrient enrichment on coral reefs: Is it a major cause of coral reef decline?, Estuaries, 25, 743–766, https://doi.org/10.1007/BF02804903, 2002.
Van De Waal, D. B., Verspagen, J. M. H., Lürling, M., Van Donk, E., Visser, P. M., and Huisman, J.: The ecological stoichiometry of toxins produced by harmful cyanobacteria: An experimental test of the carbon-nutrient balance hypothesis, Ecol. Lett., 12, 1326–1335, https://doi.org/10.1111/j.1461-0248.2009.01383.x, 2009.
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, Nature Ecology and Evolution, 1, 0084, https://doi.org/10.1038/s41559-017-0084, 2017.
Varillon, D., Fiat, S., Magron, F., Allenbach, M., Hoibian, T., de Ramon N'Yeurt, A., Ganachaud, A., Aucan, J., and Pelletier, B. H. R.: ReefTEMPS: the observation network of the coastal sea waters of the South, West and South-West Pacific, SEA scieNtific Open data Edition (SEANOE), https://doi.org/10.17882/55128, 2021.
Veron, J. E. N.: Corals of the world, Australian Institute of Marine Science, Townsville, 11, 2000.
Veron, J. E. N. and Wallace, C. C.: Scleractinia of Eastern Australia – Part V. Family Acroporidae, Australian Institute of Marine Science, Monograph Series, 6, 1–485, 1984.
Vizzini, S., Di Leonardo, R., Costa, V., Tramati, C. D., Luzzu, F., and Mazzola, A.: Trace element bias in the use of CO2 vents as analogues for low pH environments: Implications for contamination levels in acidified oceans, Estuar. Coast. Shelf S., 134, 19–30, https://doi.org/10.1016/j.ecss.2013.09.015, 2013.
Wall, C. B., Ricci, C. A., Wen, A. D., Ledbetter, B. E., Delania, E., Mydlarz, L. D., Gates, R. D., and Putnam, H. M.: Shifting baselines: Physiological legacies contribute to the response of reef corals to frequent heatwaves, Funct. Ecol., 35, 1366–1378, https://doi.org/10.1111/1365-2435.13795, 2021
Wallace, C. C.: Staghorn corals of the world: a revision of the coral genus Acropora (Scleractinia; Astrocoeniina; Acroporidae) worldwide, with emphasis on morphology, phylogeny and biogeography, Choice Reviews Online, CSIRO, Collingwood, 1999.
Ward, J. H.: Hierarchical Grouping to Optimize an Objective Function, J. Am. Stat. Assoc., 58, 236–244, https://doi.org/10.1080/01621459.1963.10500845, 1963.
Warner, M. E., Fitt, W. K., and Schmidt, G. W.: The effects of elevated temperature on the photosynthetic efficiency of zooxanthellae in hospite from four different species of reef coral: A novel approach, Plant Cell Environ., 19, 291–299, https://doi.org/10.1111/j.1365-3040.1996.tb00251.x, 1996.
Wiedenmann, J., D'Angelo, C., Smith, E. G., Hunt, A. N., Legiret, F. E., Postle, A. D., and Achterberg, E. P.: Nutrient enrichment can increase the susceptibility of reef corals to bleaching, Nat. Clim. Change, 3, 160–164 , https://doi.org/10.1038/nclimate1661, 2013.
Wittmann, A. C. and Pörtner, H. O.: Sensitivities of extant animal taxa to ocean acidification, Nat. Clim. Change, 3, 995–1001, https://doi.org/10.1038/nclimate1982, 2013.
Yates, K. K., Rogers, C. S., Herlan, J. J., Brooks, G. R., Smiley, N. A., and Larson, R. A.: Diverse coral communities in mangrove habitats suggest a novel refuge from climate change, Biogeosciences, 11, 4321–4337, https://doi.org/10.5194/bg-11-4321-2014, 2014.
Short summary
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.
Based on current experimental evidence, climate change will affect up to 90 % of coral reefs...
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