Articles | Volume 21, issue 4
https://doi.org/10.5194/bg-21-973-2024
© Author(s) 2024. 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-21-973-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
22 Feb 2024
Research article |
| 22 Feb 2024
| 22 Feb 2024
Building your own mountain: the effects, limits, and drawbacks of cold-water coral ecosystem engineering
Anna-Selma van der Kaaden
CORRESPONDING AUTHOR
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
Department of Environmental Sciences, Copernicus Institute for Sustainable Development, Utrecht University, Utrecht, the Netherlands
Sandra R. Maier
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
Greenland Climate Research Centre, Greenland Institute of Natural Resources, Nuuk, Greenland
Siluo Chen
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
Department of Environmental Sciences, Copernicus Institute for Sustainable Development, Utrecht University, Utrecht, the Netherlands
Laurence H. De Clippele
University of Glasgow, School of Biodiversity, One Health, and Veterinary Medicine, Glasgow, Scotland
Evert de Froe
Department of Ocean Systems, NIOZ Royal Netherlands Institute for Sea Research, Yerseke, the Netherlands
Theo Gerkema
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
Johan van de Koppel
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
Conservation Ecology Group, Groningen Institute for Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
Furu Mienis
Department of Ocean Systems, NIOZ Royal Netherlands Institute for Sea Research, Yerseke, the Netherlands
Christian Mohn
Deparment of Ecoscience, Aarhus University, Roskilde, Denmark
Max Rietkerk
Department of Environmental Sciences, Copernicus Institute for Sustainable Development, Utrecht University, Utrecht, the Netherlands
Karline Soetaert
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
Dick van Oevelen
Department of Estuarine and Delta Systems, NIOZ Royal Netherlands Institute for Sea Research, P.O. Box 140, 4400 AC Yerseke, the Netherlands
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Anna-Selma van der Kaaden, Dick van Oevelen, Christian Mohn, Karline Soetaert, Max Rietkerk, Johan van de Koppel, and Theo Gerkema
Ocean Sci., 20, 569–587, https://doi.org/10.5194/os-20-569-2024, https://doi.org/10.5194/os-20-569-2024, 2024
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Cold-water corals (CWCs) and tidal waves in the interior of the ocean have been connected in case studies. We demonstrate this connection globally using hydrodynamic simulations and a CWC database. Internal-tide generation shows a similar depth pattern with slope steepness and latitude as CWCs. Our results suggest that internal-tide generation can be a useful predictor of CWC habitat and that current CWC habitats might change following climate-change-related shoaling of internal-tide generation.
Anna-Selma van der Kaaden, Dick van Oevelen, Christian Mohn, Karline Soetaert, Max Rietkerk, Johan van de Koppel, and Theo Gerkema
Ocean Sci., 20, 569–587, https://doi.org/10.5194/os-20-569-2024, https://doi.org/10.5194/os-20-569-2024, 2024
Short summary
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Cold-water corals (CWCs) and tidal waves in the interior of the ocean have been connected in case studies. We demonstrate this connection globally using hydrodynamic simulations and a CWC database. Internal-tide generation shows a similar depth pattern with slope steepness and latitude as CWCs. Our results suggest that internal-tide generation can be a useful predictor of CWC habitat and that current CWC habitats might change following climate-change-related shoaling of internal-tide generation.
Evert de Froe, Igor Yashayaev, Christian Mohn, Johanne Vad, Furu Mienis, Gerard Duineveld, Ellen Kenchington, Erica Head, Steve Ross, Sabena Blackbird, George Wolff, Murray Roberts, Barry MacDonald, Graham Tulloch, and Dick van Oevelen
EGUsphere, https://doi.org/10.31223/X58968, https://doi.org/10.31223/X58968, 2024
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Deep-sea sponge grounds are distributed globally and are considered hotspots of biological diversity and biogeochemical cycling. To date, little is known about the environmental constraints that control where deep-sea sponge grounds occur and what conditions favor 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 favorable regional ocean currents.
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Biogeosciences, 20, 4683–4710, https://doi.org/10.5194/bg-20-4683-2023, https://doi.org/10.5194/bg-20-4683-2023, 2023
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Deep convection plays a key role in the circulation, thermodynamics, and biogeochemical cycles in the Mediterranean Sea, considered to be a hotspot of biodiversity and climate change. In this study, we investigate the seasonal and annual budget of dissolved inorganic carbon in the deep-convection area of the northwestern Mediterranean Sea.
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Earth Syst. Sci. Data, 15, 53–73, https://doi.org/10.5194/essd-15-53-2023, https://doi.org/10.5194/essd-15-53-2023, 2023
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Biogeosciences, 19, 2583–2598, https://doi.org/10.5194/bg-19-2583-2022, https://doi.org/10.5194/bg-19-2583-2022, 2022
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Matthew P. Humphreys, Erik H. Meesters, Henk de Haas, Szabina Karancz, Louise Delaigue, Karel Bakker, Gerard Duineveld, Siham de Goeyse, Andreas F. Haas, Furu Mienis, Sharyn Ossebaar, and Fleur C. van Duyl
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Thomas Frederikse and Theo Gerkema
Ocean Sci., 14, 1491–1501, https://doi.org/10.5194/os-14-1491-2018, https://doi.org/10.5194/os-14-1491-2018, 2018
Tanja Stratmann, Lidia Lins, Autun Purser, Yann Marcon, Clara F. Rodrigues, Ascensão Ravara, Marina R. Cunha, Erik Simon-Lledó, Daniel O. B. Jones, Andrew K. Sweetman, Kevin Köser, and Dick van Oevelen
Biogeosciences, 15, 4131–4145, https://doi.org/10.5194/bg-15-4131-2018, https://doi.org/10.5194/bg-15-4131-2018, 2018
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Tom J. S. Cox, Justus E. E. van Beusekom, and Karline Soetaert
Biogeosciences, 14, 5271–5280, https://doi.org/10.5194/bg-14-5271-2017, https://doi.org/10.5194/bg-14-5271-2017, 2017
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Photosynthesis by phytoplankton is a key source of oxygen (O2) in aquatic systems. We have developed a mathematical technique to calculate the rate of photosynthesis from time series of O2. Additionally, the approach leads to a better understanding of the influence on O2 measurements of the tides in coasts and estuaries. The results are important for correctly interpreting the data that are gathered by a growing set of continuous O2 sensors that are deployed around the world.
Dick van Oevelen, Christina E. Mueller, Tomas Lundälv, and Jack J. Middelburg
Biogeosciences, 13, 5789–5798, https://doi.org/10.5194/bg-13-5789-2016, https://doi.org/10.5194/bg-13-5789-2016, 2016
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Cold-water corals form true hotspots of biodiversity in the cold and dark deep sea, but need to live off of only small amounts of food that reach the deep sea. Using chemical tracers, this study investigated whether cold-water corals are picky eaters. We found that under low food conditions, they do not differentiate between food sources but they do differentiate at high food concentrations. This adaptation suggests that they are well adapted to exploit short food pulses efficiently.
Borja Aguiar-González and Theo Gerkema
Nonlin. Processes Geophys., 23, 285–305, https://doi.org/10.5194/npg-23-285-2016, https://doi.org/10.5194/npg-23-285-2016, 2016
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We derive a new two-fluid layer model consisting of forced rotation-modified Boussinesq equations for studying the limiting amplitudes of tidally generated fully nonlinear, weakly nonhydrostatic dispersive interfacial tides and solitons. Numerical solutions show that solitons attain in some cases a limiting table-shaped form, but may also be limited well below that state by saturation of the underlying quasi-linear internal tide under increasing barotropic forcing.
J. D. L. van Bleijswijk, C. Whalen, G. C. A. Duineveld, M. S. S. Lavaleye, H. J. Witte, and F. Mienis
Biogeosciences, 12, 4483–4496, https://doi.org/10.5194/bg-12-4483-2015, https://doi.org/10.5194/bg-12-4483-2015, 2015
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The study characterizes the microbial community composition of a cold-water coral mound. Roche GS-FLX amplicon sequencing was carried out targeting Bacteria and Archaea. Water is well-mixed at 400m depth, less so at 5 mab, where composition of communities differed among summit, slope and off-mound. Near-bottom water differed from 5 mab, showing that waters in between frameworks represent a separate microbial habitat. Patterns of microbial distribution are coupled to topo- and hydrography.
L. Meire, D. H. Søgaard, J. Mortensen, F. J. R. Meysman, K. Soetaert, K. E. Arendt, T. Juul-Pedersen, M. E. Blicher, and S. Rysgaard
Biogeosciences, 12, 2347–2363, https://doi.org/10.5194/bg-12-2347-2015, https://doi.org/10.5194/bg-12-2347-2015, 2015
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The Greenland Ice Sheet releases large amounts of freshwater, which strongly influences the biogeochemistry of the adjacent fjord systems and continental shelves. Here we present seasonal observations of the carbonate system in the surface waters of a west Greenland tidewater outlet glacier fjord. Our data reveal a permanent undersaturation of CO2 in the surface layer of the entire fjord and adjacent shelf, creating a high annual uptake of 65gCm-2yr-1.
M. Duran-Matute, T. Gerkema, G. J. de Boer, J. J. Nauw, and U. Gräwe
Ocean Sci., 10, 611–632, https://doi.org/10.5194/os-10-611-2014, https://doi.org/10.5194/os-10-611-2014, 2014
M. C. H. Tiessen, L. Fernard, T. Gerkema, J. van der Molen, P. Ruardij, and H. W. van der Veer
Ocean Sci., 10, 357–376, https://doi.org/10.5194/os-10-357-2014, https://doi.org/10.5194/os-10-357-2014, 2014
F. Mienis, G. C. A. Duineveld, A. J. Davies, M. M. S. Lavaleye, S. W. Ross, H. Seim, J. Bane, H. van Haren, M. J. N. Bergman, H. de Haas, S. Brooke, and T. C. E. van Weering
Biogeosciences, 11, 2543–2560, https://doi.org/10.5194/bg-11-2543-2014, https://doi.org/10.5194/bg-11-2543-2014, 2014
C. E. Mueller, A. I. Larsson, B. Veuger, J. J. Middelburg, and D. van Oevelen
Biogeosciences, 11, 123–133, https://doi.org/10.5194/bg-11-123-2014, https://doi.org/10.5194/bg-11-123-2014, 2014
L. Pozzato, D. Van Oevelen, L. Moodley, K. Soetaert, and J. J. Middelburg
Biogeosciences, 10, 6879–6891, https://doi.org/10.5194/bg-10-6879-2013, https://doi.org/10.5194/bg-10-6879-2013, 2013
L. Meire, K. E. R. Soetaert, and F. J. R. Meysman
Biogeosciences, 10, 2633–2653, https://doi.org/10.5194/bg-10-2633-2013, https://doi.org/10.5194/bg-10-2633-2013, 2013
A. de Kluijver, K. Soetaert, J. Czerny, K. G. Schulz, T. Boxhammer, U. Riebesell, and J. J. Middelburg
Biogeosciences, 10, 1425–1440, https://doi.org/10.5194/bg-10-1425-2013, https://doi.org/10.5194/bg-10-1425-2013, 2013
K. Soetaert, D. van Oevelen, and S. Sommer
Biogeosciences, 9, 5341–5352, https://doi.org/10.5194/bg-9-5341-2012, https://doi.org/10.5194/bg-9-5341-2012, 2012
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Effects of spatial variability on the exposure of fish to hypoxia: a modeling analysis for the Gulf of Mexico
Plant genotype determines biomass response to flooding frequency in tidal wetlands
Factors controlling the competition between Phaeocystis and diatoms in the Southern Ocean and implications for carbon export fluxes
Characterization of particle-associated and free-living bacterial and archaeal communities along the water columns of the South China Sea
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.
Skye Yunshu Tian, Martin Langer, Moriaki Yasuhara, and Chih-Lin Wei
EGUsphere, https://doi.org/10.5194/egusphere-2024-487, https://doi.org/10.5194/egusphere-2024-487, 2024
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Through the first large-scale study of meiobenthic ostracods from the diverse and productive reef ecosystem in Zanzibar Archipelago, Tanzania, we found that the diversity and composition of ostracod assemblages as controlled by benthic habitats and human impacts was indicative of overall reef health, and we highlighted the usefulness of ostracod as a model proxy to monitor and understand the degradation of reef ecosystems from the coral-dominated phase to the algae-dominated phase.
Thibauld M. Béjard, Andrés S. Rigual-Hernández, Javier P. Tarruella, José A. Flores, Anna Sanchez Vidal, Irene Llamas Cano, and Francisco J. Sierro
EGUsphere, https://doi.org/10.5194/egusphere-2023-3101, https://doi.org/10.5194/egusphere-2023-3101, 2024
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The Mediterranean Sea is considered a climate change hotspot. Documenting planktic foraminifera population is crucial. In the Sicily Strait, 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.
Xiaoke Xin, Giulia Faucher, and Ulf Riebesell
Biogeosciences, 21, 761–772, https://doi.org/10.5194/bg-21-761-2024, https://doi.org/10.5194/bg-21-761-2024, 2024
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Ocean alkalinity enhancement (OAE) is a promising approach to remove CO2 by accelerating natural rock weathering. However, some of the alkaline substances contain trace metals which could be toxic to marine life. By exposing three representative phytoplankton species to Ni released from alkaline materials, we observed varying responses of phytoplankton to nickel concentrations, suggesting caution should be taken and toxic thresholds should be avoided in OAE with Ni-rich materials.
Olmo Miguez-Salas, Angelika Brandt, Henry Knauber, and Torben Riehl
Biogeosciences, 21, 641–655, https://doi.org/10.5194/bg-21-641-2024, https://doi.org/10.5194/bg-21-641-2024, 2024
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In the deep sea, the interaction between benthic fauna (tracemakers) and substrate can be preserved as traces (i.e. lebensspuren), which are common features of seafloor landscapes, rendering them promising proxies for inferring biodiversity from marine images. No general correlation was observed between traces and benthic fauna. However, a local correlation was observed between specific stations depending on unknown tracemakers, tracemaker behaviour, and lebensspuren morphotypes.
Cale A. Miller, Pierre Urrutti, Jean-Pierre Gattuso, Steeve Comeau, Anaïs Lebrun, Samir Alliouane, Robert W. Schlegel, and Frédéric Gazeau
Biogeosciences, 21, 315–333, https://doi.org/10.5194/bg-21-315-2024, https://doi.org/10.5194/bg-21-315-2024, 2024
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This work describes an experimental system that can replicate and manipulate environmental conditions in marine or aquatic systems. Here, we show how the temperature and salinity of seawater delivered from a fjord is manipulated to experimental tanks on land. By constantly monitoring temperature and salinity in each tank via a computer program, the system continuously adjusts automated flow valves to ensure the seawater in each tank matches the targeted experimental conditions.
Rachel A. Kruft Welton, George Hoppit, Daniela N. Schmidt, James D. Witts, and Benjamin C. Moon
Biogeosciences, 21, 223–239, https://doi.org/10.5194/bg-21-223-2024, https://doi.org/10.5194/bg-21-223-2024, 2024
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We conducted a meta-analysis of known experimental literature examining how marine bivalve growth rates respond to climate change. Growth is usually negatively impacted by climate change. Bivalve eggs/larva are generally more vulnerable than either juveniles or adults. Available data on the bivalve response to climate stressors are biased towards early growth stages (commercially important in the Global North), and many families have only single experiments examining climate change impacts.
Vincent Mouchi, Christophe Pecheyran, Fanny Claverie, Cécile Cathalot, Marjolaine Matabos, Yoan Germain, Olivier Rouxel, Didier Jollivet, Thomas Broquet, and Thierry Comtet
Biogeosciences, 21, 145–160, https://doi.org/10.5194/bg-21-145-2024, https://doi.org/10.5194/bg-21-145-2024, 2024
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The impact of deep-sea mining will depend critically on the ability of larval dispersal of hydrothermal mollusks to connect and replenish natural populations. However, assessing connectivity is extremely challenging, especially in the deep sea. Here, we investigate the potential of using the chemical composition of larval shells to discriminate larval origins between multiple hydrothermal sites in the southwest Pacific. Our results confirm that this method can be applied with high accuracy.
Anna-Marie Winter, Nadezda Vasilyeva, and Artem Vladimirov
Biogeosciences, 20, 3683–3716, https://doi.org/10.5194/bg-20-3683-2023, https://doi.org/10.5194/bg-20-3683-2023, 2023
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There is an increasing number of fish in poor state, and many do not recover, even when fishing pressure is ceased. An Allee effect can hinder population recovery because it suppresses the fish's productivity at low abundance. With a model fitted to 17 Atlantic cod stocks, we find that ocean warming and fishing can cause an Allee effect. If present, the Allee effect hinders fish recovery. This shows that Allee effects are dynamic, not uncommon, and calls for precautionary management measures.
Afrah Alothman, Daffne López-Sandoval, Carlos M. Duarte, and Susana Agustí
Biogeosciences, 20, 3613–3624, https://doi.org/10.5194/bg-20-3613-2023, https://doi.org/10.5194/bg-20-3613-2023, 2023
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This study investigates bacterial dissolved inorganic carbon (DIC) fixation in the Red Sea, an oligotrophic ecosystem, using stable-isotope labeling and spectroscopy. The research reveals that bacterial DIC fixation significantly contributes to total DIC fixation, in the surface and deep water. The study demonstrates that as primary production decreases, the role of bacterial DIC fixation increases, emphasizing its importance with photosynthesis in estimating oceanic carbon dioxide production.
Arianna Zampollo, Thomas Cornulier, Rory O'Hara Murray, Jacqueline Fiona Tweddle, James Dunning, and Beth E. Scott
Biogeosciences, 20, 3593–3611, https://doi.org/10.5194/bg-20-3593-2023, https://doi.org/10.5194/bg-20-3593-2023, 2023
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This paper highlights the use of the bottom mixed layer depth (BMLD: depth between the end of the pycnocline and the mixed layer below) to investigate subsurface Chlorophyll a (a proxy of primary production) in temperate stratified shelf waters. The strict correlation between subsurface Chl a and BMLD becomes relevant in shelf-productive waters where multiple stressors (e.g. offshore infrastructure) will change the stratification--mixing balance and related carbon fluxes.
Marco Fusi, Sylvain Rigaud, Giovanna Guadagnin, Alberto Barausse, Ramona Marasco, Daniele Daffonchio, Julie Régis, Louison Huchet, Capucine Camin, Laura Pettit, Cristina Vina-Herbon, and Folco Giomi
Biogeosciences, 20, 3509–3521, https://doi.org/10.5194/bg-20-3509-2023, https://doi.org/10.5194/bg-20-3509-2023, 2023
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Oxygen availability in marine water and freshwater is very variable at daily and seasonal scales. The dynamic nature of oxygen fluctuations has important consequences for animal and microbe physiology and ecology, yet it is not fully understood. In this paper, we showed the heterogeneous nature of the aquatic oxygen landscape, which we defined here as the
oxyscape, and we addressed the importance of considering the oxyscape in the modelling and managing of aquatic ecosystems.
Anne L. Morée, Tayler M. Clarke, William W. L. Cheung, and Thomas L. Frölicher
Biogeosciences, 20, 2425–2454, https://doi.org/10.5194/bg-20-2425-2023, https://doi.org/10.5194/bg-20-2425-2023, 2023
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Ocean temperature and oxygen shape marine habitats together with species’ characteristics. We calculated the impacts of projected 21st-century warming and oxygen loss on the contemporary habitat volume of 47 marine species and described the drivers of these impacts. Most species lose less than 5 % of their habitat at 2 °C of global warming, but some species incur losses 2–3 times greater than that. We also calculate which species may be most vulnerable to climate change and why this is the case.
Markus A. Min, David M. Needham, Sebastian Sudek, Nathan Kobun Truelove, Kathleen J. Pitz, Gabriela M. Chavez, Camille Poirier, Bente Gardeler, Elisabeth von der Esch, Andrea Ludwig, Ulf Riebesell, Alexandra Z. Worden, and Francisco P. Chavez
Biogeosciences, 20, 1277–1298, https://doi.org/10.5194/bg-20-1277-2023, https://doi.org/10.5194/bg-20-1277-2023, 2023
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Emerging molecular methods provide new ways of understanding how marine communities respond to changes in ocean conditions. Here, environmental DNA was used to track the temporal evolution of biological communities in the Peruvian coastal upwelling system and in an adjacent enclosure where upwelling was simulated. We found that the two communities quickly diverged, with the open ocean being one found during upwelling and the enclosure evolving to one found under stratified conditions.
Wojciech Majewski, Witold Szczuciński, and Andrew J. Gooday
Biogeosciences, 20, 523–544, https://doi.org/10.5194/bg-20-523-2023, https://doi.org/10.5194/bg-20-523-2023, 2023
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We studied foraminifera living in the fjords of South Georgia, a sub-Antarctic island sensitive to climate change. As conditions in water and on the seafloor vary, different associations of these microorganisms dominate far inside, in the middle, and near fjord openings. Assemblages in inner and middle parts of fjords are specific to South Georgia, but they may become widespread with anticipated warming. These results are important for interpretating fossil records and monitoring future change.
Allanah Joy Paul, Lennart Thomas Bach, Javier Arístegui, Elisabeth von der Esch, Nauzet Hernández-Hernández, Jonna Piiparinen, Laura Ramajo, Kristian Spilling, and Ulf Riebesell
Biogeosciences, 19, 5911–5926, https://doi.org/10.5194/bg-19-5911-2022, https://doi.org/10.5194/bg-19-5911-2022, 2022
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We investigated how different deep water chemistry and biology modulate the response of surface phytoplankton communities to upwelling in the Peruvian coastal zone. Our results show that the most influential drivers were the ratio of inorganic nutrients (N : P) and the microbial community present in upwelling source water. These led to unexpected and variable development in the phytoplankton assemblage that could not be predicted by the amount of inorganic nutrients alone.
Hanna M. Kauko, Philipp Assmy, Ilka Peeken, Magdalena Różańska-Pluta, Józef M. Wiktor, Gunnar Bratbak, Asmita Singh, Thomas J. Ryan-Keogh, and Sebastien Moreau
Biogeosciences, 19, 5449–5482, https://doi.org/10.5194/bg-19-5449-2022, https://doi.org/10.5194/bg-19-5449-2022, 2022
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This article studies phytoplankton (microscopic
plantsin the ocean capable of photosynthesis) in Kong Håkon VII Hav in the Southern Ocean. Different species play different roles in the ecosystem, and it is therefore important to assess the species composition. We observed that phytoplankton blooms in this area are formed by large diatoms with strong silica armors, which can lead to high silica (and sometimes carbon) export to depth and be important prey for krill.
Chloe Carbonne, Steeve Comeau, Phoebe T. W. Chan, Keyla Plichon, Jean-Pierre Gattuso, and Núria Teixidó
Biogeosciences, 19, 4767–4777, https://doi.org/10.5194/bg-19-4767-2022, https://doi.org/10.5194/bg-19-4767-2022, 2022
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For the first time, our study highlights the synergistic effects of a 9-month warming and acidification combined stress on the early life stages of a Mediterranean azooxanthellate coral, Astroides calycularis. Our results predict a decrease in dispersion, settlement, post-settlement linear extention, budding and survival under future global change and that larvae and recruits of A. calycularis are stages of interest for this Mediterranean coral resistance, resilience and conservation.
Iris E. Hendriks, Anna Escolano-Moltó, Susana Flecha, Raquel Vaquer-Sunyer, Marlene Wesselmann, and Núria Marbà
Biogeosciences, 19, 4619–4637, https://doi.org/10.5194/bg-19-4619-2022, https://doi.org/10.5194/bg-19-4619-2022, 2022
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Seagrasses are marine plants with the capacity to act as carbon sinks due to their high primary productivity, using carbon for growth. This capacity can play a key role in climate change mitigation. We compiled and published data showing that two Mediterranean seagrass species have different metabolic rates, while the study method influences the rates of the measurements. Most communities act as carbon sinks, while the western basin might be more productive than the eastern Mediterranean.
Raúl Tapia, Sze Ling Ho, Hui-Yu Wang, Jeroen Groeneveld, and Mahyar Mohtadi
Biogeosciences, 19, 3185–3208, https://doi.org/10.5194/bg-19-3185-2022, https://doi.org/10.5194/bg-19-3185-2022, 2022
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We report census counts of planktic foraminifera in depth-stratified plankton net samples off Indonesia. Our results show that the vertical distribution of foraminifera species routinely used in paleoceanographic reconstructions varies in hydrographically distinct regions, likely in response to food availability. Consequently, the thermal gradient based on mixed layer and thermocline dwellers also differs for these regions, suggesting potential implications for paleoceanographic reconstructions.
Ricardo González-Gil, Neil S. Banas, Eileen Bresnan, and Michael R. Heath
Biogeosciences, 19, 2417–2426, https://doi.org/10.5194/bg-19-2417-2022, https://doi.org/10.5194/bg-19-2417-2022, 2022
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In oceanic waters, the accumulation of phytoplankton biomass in winter, when light still limits growth, is attributed to a decrease in grazing as the mixed layer deepens. However, in coastal areas, it is not clear whether winter biomass can accumulate without this deepening. Using 21 years of weekly data, we found that in the Scottish coastal North Sea, the seasonal increase in light availability triggers the accumulation of phytoplankton biomass in winter, when light limitation is strongest.
Birgit Koehler, Mårten Erlandsson, Martin Karlsson, and Lena Bergström
Biogeosciences, 19, 2295–2312, https://doi.org/10.5194/bg-19-2295-2022, https://doi.org/10.5194/bg-19-2295-2022, 2022
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Understanding species richness patterns remains a challenge for biodiversity management. We estimated fish species richness over a coastal salinity gradient (3–32) with a method that allowed comparing data from various sources. Species richness was 3-fold higher at high vs. low salinity, and salinity influenced species’ habitat preference, mobility and feeding type. If climate change causes upper-layer freshening of the Baltic Sea, further shifts along the identified patterns may be expected.
Uri Obolski, Thomas Wichard, Alvaro Israel, Alexander Golberg, and Alexander Liberzon
Biogeosciences, 19, 2263–2271, https://doi.org/10.5194/bg-19-2263-2022, https://doi.org/10.5194/bg-19-2263-2022, 2022
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The algal genus Ulva plays a major role in coastal ecosystems worldwide and is a promising prospect as an seagriculture crop. A substantial hindrance to cultivating Ulva arises from sudden sporulation, leading to biomass loss. This process is not yet well understood. Here, we characterize the dynamics of Ulva growth, considering the potential impact of sporulation inhibitors, using a mathematical model. Our findings are an essential step towards understanding the dynamics of Ulva growth.
Emanuela Fanelli, Samuele Menicucci, Sara Malavolti, Andrea De Felice, and Iole Leonori
Biogeosciences, 19, 1833–1851, https://doi.org/10.5194/bg-19-1833-2022, https://doi.org/10.5194/bg-19-1833-2022, 2022
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Zooplankton play a key role in marine ecosystems, forming the base of the marine food web and a link between primary producers and higher-order consumers, such as fish. This aspect is crucial in the Adriatic basin, one of the most productive and overexploited areas of the Mediterranean Sea. A better understanding of community and food web structure and their response to water mass changes is essential under a global warming scenario, as zooplankton are sensitive to climate change.
Masaya Yoshikai, Takashi Nakamura, Rempei Suwa, Sahadev Sharma, Rene Rollon, Jun Yasuoka, Ryohei Egawa, and Kazuo Nadaoka
Biogeosciences, 19, 1813–1832, https://doi.org/10.5194/bg-19-1813-2022, https://doi.org/10.5194/bg-19-1813-2022, 2022
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This study presents a new individual-based vegetation model to investigate salinity control on mangrove productivity. The model incorporates plant hydraulics and tree competition and predicts unique and complex patterns of mangrove forest structures that vary across soil salinity gradients. The presented model does not hold an empirical expression of salinity influence on productivity and thus may provide a better understanding of mangrove forest dynamics in future climate change.
Coulson A. Lantz, William Leggat, Jessica L. Bergman, Alexander Fordyce, Charlotte Page, Thomas Mesaglio, and Tracy D. Ainsworth
Biogeosciences, 19, 891–906, https://doi.org/10.5194/bg-19-891-2022, https://doi.org/10.5194/bg-19-891-2022, 2022
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Coral bleaching events continue to drive the degradation of coral reefs worldwide. In this study we measured rates of daytime coral reef community calcification and photosynthesis during a reef-wide bleaching event. Despite a measured decline in coral health across several taxa, there was no change in overall daytime community calcification and photosynthesis. These findings highlight potential limitations of these community-level metrics to reflect actual changes in coral health.
Hyewon Heather Kim, Jeff S. Bowman, Ya-Wei Luo, Hugh W. Ducklow, Oscar M. Schofield, Deborah K. Steinberg, and Scott C. Doney
Biogeosciences, 19, 117–136, https://doi.org/10.5194/bg-19-117-2022, https://doi.org/10.5194/bg-19-117-2022, 2022
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Heterotrophic marine bacteria are tiny organisms responsible for taking up organic matter in the ocean. Using a modeling approach, this study shows that characteristics (taxonomy and physiology) of bacteria are associated with a subset of ecological processes in the coastal West Antarctic Peninsula region, a system susceptible to global climate change. This study also suggests that bacteria will become more active, in particular large-sized cells, in response to changing climates in the region.
Alice E. Webb, Didier M. de Bakker, Karline Soetaert, Tamara da Costa, Steven M. A. C. van Heuven, Fleur C. van Duyl, Gert-Jan Reichart, and Lennart J. de Nooijer
Biogeosciences, 18, 6501–6516, https://doi.org/10.5194/bg-18-6501-2021, https://doi.org/10.5194/bg-18-6501-2021, 2021
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The biogeochemical behaviour of shallow reef communities is quantified to better understand the impact of habitat degradation and species composition shifts on reef functioning. The reef communities investigated barely support reef functions that are usually ascribed to conventional coral reefs, and the overall biogeochemical behaviour is found to be similar regardless of substrate type. This suggests a decrease in functional diversity which may therefore limit services provided by this reef.
Emmanuel Devred, Andrea Hilborn, and Cornelia Elizabeth den Heyer
Biogeosciences, 18, 6115–6132, https://doi.org/10.5194/bg-18-6115-2021, https://doi.org/10.5194/bg-18-6115-2021, 2021
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A theoretical model of grey seal seasonal abundance on Sable Island (SI) coupled with chlorophyll-a concentration [chl-a] measured by satellite revealed the impact of seal nitrogen fertilization on the surrounding waters of SI, Canada. The increase in seals from about 100 000 in 2003 to about 360 000 in 2018 during the breeding season is consistent with an increase in [chl-a] leeward of SI. The increase in seal abundance explains 8 % of the [chl-a] increase.
Julie Meilland, Michael Siccha, Maike Kaffenberger, Jelle Bijma, and Michal Kucera
Biogeosciences, 18, 5789–5809, https://doi.org/10.5194/bg-18-5789-2021, https://doi.org/10.5194/bg-18-5789-2021, 2021
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Planktonic foraminifera population dynamics has long been assumed to be controlled by synchronous reproduction and ontogenetic vertical migration (OVM). Due to contradictory observations, this concept became controversial. We here test it in the Atlantic ocean for four species of foraminifera representing the main clades. Our observations support the existence of synchronised reproduction and OVM but show that more than half of the population does not follow the canonical trajectory.
Federica Maggioni, Mireille Pujo-Pay, Jérome Aucan, Carlo Cerrano, Barbara Calcinai, Claude Payri, Francesca Benzoni, Yves Letourneur, and Riccardo Rodolfo-Metalpa
Biogeosciences, 18, 5117–5140, https://doi.org/10.5194/bg-18-5117-2021, https://doi.org/10.5194/bg-18-5117-2021, 2021
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Based on current experimental evidence, climate change will affect up to 90 % of coral reefs worldwide. The originality of this study arises from our recent discovery of an exceptional study site where environmental conditions (temperature, pH, and oxygen) are even worse than those forecasted for the future.
While these conditions are generally recognized as unfavorable for marine life, we found a rich and abundant coral reef thriving under such extreme environmental conditions.
Nisan Sariaslan and Martin R. Langer
Biogeosciences, 18, 4073–4090, https://doi.org/10.5194/bg-18-4073-2021, https://doi.org/10.5194/bg-18-4073-2021, 2021
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Analyses of foraminiferal assemblages from the Mamanguape mangrove estuary (northern Brazil) revealed highly diverse, species-rich, and structurally complex biotas. The atypical fauna resembles shallow-water offshore assemblages and are interpreted to be the result of highly saline ocean waters penetrating deep into the estuary. The findings contrast with previous studies, have implications for the fossil record, and provide novel perspectives for reconstructing mangrove environments.
Jutta E. Wollenburg, Jelle Bijma, Charlotte Cremer, Ulf Bickmeyer, and Zora Mila Colomba Zittier
Biogeosciences, 18, 3903–3915, https://doi.org/10.5194/bg-18-3903-2021, https://doi.org/10.5194/bg-18-3903-2021, 2021
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Cultured at in situ high-pressure conditions Cibicides and Cibicidoides taxa develop lasting ectoplasmic structures that cannot be retracted or resorbed. An ectoplasmic envelope surrounds their test and may protect the shell, e.g. versus carbonate aggressive bottom water conditions. Ectoplasmic roots likely anchor the specimens in areas of strong bottom water currents, trees enable them to elevate themselves above ground, and twigs stabilize and guide the retractable pseudopodial network.
Kumar Nimit
Biogeosciences, 18, 3631–3635, https://doi.org/10.5194/bg-18-3631-2021, https://doi.org/10.5194/bg-18-3631-2021, 2021
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The Indian Ocean Rim hosts many of the underdeveloped and emerging economies that depend on ocean resources for the livelihood of millions. Operational ocean information services cater to the requirements of resource managers and end-users to efficiently harness resources, mitigate threats and ensure safety. This paper outlines existing tools and explores the ongoing research that has the potential to convert the findings into operational services in the near- to midterm.
Finn Mielck, Rune Michaelis, H. Christian Hass, Sarah Hertel, Caroline Ganal, and Werner Armonies
Biogeosciences, 18, 3565–3577, https://doi.org/10.5194/bg-18-3565-2021, https://doi.org/10.5194/bg-18-3565-2021, 2021
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Marine sand mining is becoming more and more important to nourish fragile coastlines that face global change. We investigated the largest sand extraction site in the German Bight. The study reveals that after more than 35 years of mining, the excavation pits are still detectable on the seafloor while the sediment composition has largely changed. The organic communities living in and on the seafloor were strongly decimated, and no recovery is observable towards previous conditions.
France Van Wambeke, Elvira Pulido, Philippe Catala, Julie Dinasquet, Kahina Djaoudi, Anja Engel, Marc Garel, Sophie Guasco, Barbara Marie, Sandra Nunige, Vincent Taillandier, Birthe Zäncker, and Christian Tamburini
Biogeosciences, 18, 2301–2323, https://doi.org/10.5194/bg-18-2301-2021, https://doi.org/10.5194/bg-18-2301-2021, 2021
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Michaelis–Menten kinetics were determined for alkaline phosphatase, aminopeptidase and β-glucosidase in the Mediterranean Sea. Although the ectoenzymatic-hydrolysis contribution to heterotrophic prokaryotic needs was high in terms of N, it was low in terms of C. This study points out the biases in interpretation of the relative differences in activities among the three tested enzymes in regard to the choice of added concentrations of fluorogenic substrates.
Oscar E. Romero, Simon Ramondenc, and Gerhard Fischer
Biogeosciences, 18, 1873–1891, https://doi.org/10.5194/bg-18-1873-2021, https://doi.org/10.5194/bg-18-1873-2021, 2021
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Upwelling intensity along NW Africa varies on the interannual to decadal timescale. Understanding its changes is key for the prediction of future changes of CO2 sequestration in the northeastern Atlantic. Based on a multiyear (1988–2009) sediment trap experiment at the site CBmeso, fluxes and the species composition of the diatom assemblage are presented. Our data help in establishing the scientific basis for forecasting and modeling future states of this ecosystem and its decadal changes.
Katharine T. Bigham, Ashley A. Rowden, Daniel Leduc, and David A. Bowden
Biogeosciences, 18, 1893–1908, https://doi.org/10.5194/bg-18-1893-2021, https://doi.org/10.5194/bg-18-1893-2021, 2021
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Turbidity flows – underwater avalanches – are large-scale physical disturbances believed to have profound impacts on productivity and diversity of benthic communities in the deep sea. We reviewed published studies and found that current evidence for changes in productivity is ambiguous at best, but the influence on regional and local diversity is clearer. We suggest study design criteria that may lead to a better understanding of large-scale disturbance effects on deep-sea benthos.
Phillip Williamson, Hans-Otto Pörtner, Steve Widdicombe, and Jean-Pierre Gattuso
Biogeosciences, 18, 1787–1792, https://doi.org/10.5194/bg-18-1787-2021, https://doi.org/10.5194/bg-18-1787-2021, 2021
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The reliability of ocean acidification research was challenged in early 2020 when a high-profile paper failed to corroborate previously observed impacts of high CO2 on the behaviour of coral reef fish. We now know the reason why: the
replicatedstudies differed in many ways. Open-minded and collaborative assessment of all research results, both negative and positive, remains the best way to develop process-based understanding of the impacts of ocean acidification on marine organisms.
Michael Lintner, Bianca Lintner, Wolfgang Wanek, Nina Keul, and Petra Heinz
Biogeosciences, 18, 1395–1406, https://doi.org/10.5194/bg-18-1395-2021, https://doi.org/10.5194/bg-18-1395-2021, 2021
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Foraminifera are unicellular marine organisms that play an important role in the marine element cycle. Changes of environmental parameters such as salinity or temperature have a significant impact on the faunal assemblages. Our experiments show that changes in salinity immediately influence the foraminiferal activity. Also the light regime has a significant impact on carbon or nitrogen processing in foraminifera which contain no kleptoplasts.
Michele Casini, Martin Hansson, Alessandro Orio, and Karin Limburg
Biogeosciences, 18, 1321–1331, https://doi.org/10.5194/bg-18-1321-2021, https://doi.org/10.5194/bg-18-1321-2021, 2021
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In the past 20 years the condition of the eastern Baltic cod has dropped, with large implications for the fishery. Our results show that simultaneously the cod population has moved deeper while low-oxygenated waters detrimental for cod growth have become shallower. Cod have thus dwelled more in detrimental waters, explaining the drop in its condition. This study, using long-term fish and hydrological monitoring data, evidences the impact of deoxygenation on fish biology and fishing.
Elizabeth D. LaBone, Kenneth A. Rose, Dubravko Justic, Haosheng Huang, and Lixia Wang
Biogeosciences, 18, 487–507, https://doi.org/10.5194/bg-18-487-2021, https://doi.org/10.5194/bg-18-487-2021, 2021
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The hypoxic zone is an area of low dissolved oxygen (DO) in the Gulf of Mexico. Fish can be killed by exposure to hypoxia and can be negatively impacted by exposure to low, nonlethal DO concentrations (sublethal DO). We found that high sublethal area resulted in higher exposure and DO variability had a small effect on exposure. There was a large variation in exposure among individuals, which when combined with spatial variability of DO, can result in an underestimation of exposure when averaged.
Svenja Reents, Peter Mueller, Hao Tang, Kai Jensen, and Stefanie Nolte
Biogeosciences, 18, 403–411, https://doi.org/10.5194/bg-18-403-2021, https://doi.org/10.5194/bg-18-403-2021, 2021
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By conducting a flooding experiment with two genotypes of the salt-marsh grass Elymus athericus, we show considerable differences in biomass response to flooding within the same species. As biomass production plays a major role in sedimentation processes and thereby salt-marsh accretion, we emphasise the importance of taking intraspecific differences into account when evaluating ecosystem resilience to accelerated sea level rise.
Cara Nissen and Meike Vogt
Biogeosciences, 18, 251–283, https://doi.org/10.5194/bg-18-251-2021, https://doi.org/10.5194/bg-18-251-2021, 2021
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Using a regional Southern Ocean ecosystem model, we find that the relative importance of Phaeocystis and diatoms at high latitudes is controlled by iron and temperature variability, with light levels controlling the seasonal succession in coastal areas. Yet, biomass losses via aggregation and grazing matter as well. We show that the seasonal succession of Phaeocystis and diatoms impacts the seasonality of carbon export fluxes with ramifications for nutrient cycling and food web dynamics.
Jiangtao Li, Lingyuan Gu, Shijie Bai, Jie Wang, Lei Su, Bingbing Wei, Li Zhang, and Jiasong Fang
Biogeosciences, 18, 113–133, https://doi.org/10.5194/bg-18-113-2021, https://doi.org/10.5194/bg-18-113-2021, 2021
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Few studies have focused on the particle-attached (PA) and free-living (FL) microbes of the deep ocean. Here we determined PA and FL microbial communities along depth profiles of the SCS. PA and FL fractions accommodated divergent microbial compositions, and most of them are potentially generalists with PA and FL dual lifestyles. A potential vertical connectivity between surface-specific microbes and those in the deep ocean was indicated, likely through microbial attachment to sinking particles.
Cited articles
Baines, P. G.: Topographic effects in stratified flows, Cambridge University Press, ISBN 9781108722902, 1995.
Bartzke, G., Siemann, L., Büssing, R., Nardone, P., Koll, K., Hebbeln, D., and Huhn, K.: Investigating the Prevailing Hydrodynamics Around a Cold-Water Coral Colony Using a Physical and a Numerical Approach, Front. Mar. Sci., 8, 1–17, https://doi.org/10.3389/fmars.2021.663304, 2021.
Bastiaansen, R., Doelman, A., Eppinga, M. B., and Rietkerk, M.: The effect of climate change on the resilience of ecosystems with adaptive spatial pattern formation, Ecol. Lett., 23, 414–429, https://doi.org/10.1111/ele.13449, 2020.
Blanchet, F. G., Legendre, P., and Borcard, D.: Forward selection of explanatory variables, Ecology, 89, 2623–2632, https://doi.org/10.1890/07-0986.1, 2008.
Bongiorni, L., Mea, M., Gambi, C., Pusceddu, A., Taviani, M., and Danovaro, R.: Deep-water scleractinian corals promote higher biodiversity in deep-sea meiofaunal assemblages along continental margins, Biol. Conserv., 143, 1687–1700, https://doi.org/10.1016/j.biocon.2010.04.009, 2010.
Borcard, D., Gillet, F., and Legendre, P.: Numerical Ecology with R, edited by: Gentleman, R., Hornik, K., and Parmigiani, G., Springer Science & Business Media, 21–54, https://doi.org/10.1007/978-1-4419-7976-6, 2011.
Büscher, J. V., Form, A. U., and Riebesell, U.: Interactive effects of ocean acidification and warming on growth, fitness and survival of the cold-water coral Lophelia pertusa under different food availabilities, Front. Mar. Sci., 4, https://doi.org/10.3389/fmars.2017.00101, 2017.
Büscher, J. V., Form, A. U., Wisshak, M., Kiko, R., and Riebesell, U.: Cold-water coral ecosystems under future ocean change: Live coral performance vs. framework dissolution and bioerosion, Limnol. Oceanogr., 67, 2497–2515, https://doi.org/10.1002/lno.12217, 2022.
Capotondi, A., Alexander, M. A., Bond, N. A., Curchitser, E. N., and Scott, J. D.: Enhanced upper ocean stratification with climate change in the CMIP3 models, J. Geophys. Res., 117, 1–23, https://doi.org/10.1029/2011JC007409, 2012.
Carlier, A., Le Guilloux, E., Olu, K., Sarrazin, J., Mastrototaro, F., Taviani, M., and Clavier, J.: Trophic relationships in a deep Mediterranean cold-water coral bank (Santa Maria di Leuca, Ionian Sea), Mar. Ecol. Prog. Ser., 397, 125–137, https://doi.org/10.3354/meps08361, 2009.
Cathalot, C., Van Oevelen, D., Cox, T. J. S., Kutti, T., Lavaleye, M., Duineveld, G., and Meysman, F. J. R.: Cold-water coral reefs and adjacent sponge grounds: hotspots of benthic respiration and organic carbon cycling in the deep sea, Front. Mar. Sci., 2, 1–12, https://doi.org/10.3389/fmars.2015.00037, 2015.
Chapron, L., Galand, P. E., Pruski, A. M., Peru, E., Vétion, G., Robin, S., and Lartaud, F.: Resilience of cold-water coral holobionts to thermal stress, P. Roy. Soc. B-Bio., 288, 1965, https://doi.org/10.1098/rspb.2021.2117, 2021.
De Clippele, L. H., van der Kaaden, A. S., Maier, S. R., de Froe, E., and Roberts, J. M.: Biomass Mapping for an Improved Understanding of the Contribution of Cold-Water Coral Carbonate Mounds to C and N Cycling, Front. Mar. Sci., 8, https://doi.org/10.3389/fmars.2021.721062, 2021.
da Costa Portilho-Ramos, R., Titschack, J., Wienberg, C., Rojas, M. G. S., Yokoyama, Y., and Hebbeln, D.: Major environmental drivers determining life and death of cold-water corals through time, PLoS Biol, 20, https://doi.org/10.1371/journal.pbio.3001628, 2022.
Crooks, J. A.: Characterizing ecosystem-level consequences of biological invasions: the role of ecosystem engineers, OIKOS, 97, 153–166, 2002.
Cyr, F., Van Haren, H., Mienis, F., Duineveld, G., and Bourgault, D.: On the influence of cold-water coral mound size on flow hydrodynamics, and vice versa, Geophys. Res. Lett., 43, 1–9, https://doi.org/10.1002/2015GL067038, 2016.
Davies, A. J., Duineveld, G. C. A., Lavaleye, M. S. S., Bergman, M. J. N., van Haren, H., and Roberts, J. M.: Downwelling and deep-water bottom currents as food supply mechanisms to the cold-water coral Lophelia pertusa (Scleractinia) at the Mingulay Reef complex, Limnol. Oceanogr., 54, 620–629, https://doi.org/10.4319/lo.2009.54.2.0620, 2009.
De Clippele, L., van der Kaaden, A.-S., Maier S. M., de Froe, E., and Roberts, M.: Environmental data and image area measurements of different substrate types extracted from video transects recorded in the Logachev cold-water coral mound province, Pangaea [data set], https://doi.org/10.1594/PANGAEA.959612, 2023.
de Froe, E., Maier, S. R., Horn, H. G., Wolff, G. A., Blackbird, S., Mohn, C., Schultz, M., van der Kaaden, A., Cheng, C. H., Wubben, E., van Haastregt, B., Friis Moller, E., Lavaleye, M., Soetaert, K., Reichart, G., and van Oevelen, D.: Hydrography and food distribution during a tidal cycle above a cold-water coral mound, Deep-Sea Res. Pt. I, 189, 103854, https://doi.org/10.1016/j.dsr.2022.103854, 2022.
de Haas, H., Mienis, F., Frank, N., Richter, T. O., Steinacher, R., de Stigter, H., van der Land, C., and van Weering, T. C. E.: Morphology and sedimentology of (clustered) cold-water coral mounds at the south Rockall Trough margins, NE Atlantic Ocean, Facies, 55, 1–26, https://doi.org/10.1007/s10347-008-0157-1, 2009.
Dewey, R., Richmond, D., and Garrett, C.: Stratified tidal flow over a bump, J. Phys. Oceanogr., 35, 1911–1927, https://doi.org/10.1175/JPO2799.1, 2005.
Dodds, L. A., Roberts, J. M., Taylor, A. C., and Marubini, F.: Metabolic tolerance of the cold-water coral Lophelia pertusa (Scleractinia) to temperature and dissolved oxygen change, J. Exp. Mar. Biol. Ecol., 349, 205–214, https://doi.org/10.1016/j.jembe.2007.05.013, 2007.
Dorey, N., Gjelsvik, Ø., Kutti, T., and Büscher, J. V.: Broad Thermal Tolerance in the Cold-Water Coral Lophelia pertusa From Arctic and Boreal Reefs, Front. Physiol., 10, https://doi.org/10.3389/fphys.2019.01636, 2020.
Dorschel, B., Hebbeln, D., Ruggeberg, A., and Dullo, C.: Carbonate budget of a cold-water coral carbonate mound: Propeller Mound, Porcupine Seabight, Int. J. Earth Sci., 96, 73–83, https://doi.org/10.1007/s00531-005-0493-0, 2005.
Dray, S., Bauman, D., Blanchet, G., Borcard, D., Clappe, S., Guénard, G., Jombart, T., Larocque, G., Legendre, P., Madi, N., and Wagner, H. H.: _adespatial: Multivariate Multiscale Spatial Analysis_. R package version 0.3-20, https://CRAN.R-project.org (last access: 13 February 2024), 2022.
Duineveld, G. C. A., Lavaleye, M. S. S., Bergman, M. J. N., de Stigter, H., and Mienis, F.: Trophic structure of a cold-water coral mound community (Rockall Bank, NE Atlantic) in relation to the near-bottom particle supply and current regime, Bull. Mar. Sci., 81, 449–467, https://doi.org/10.1080/17451000.2017.1398404, 2007.
Duineveld, G. C. A., Jeffreys, R. M., Lavaleye, M. S. S., Davies, A. J., Bergman, M. J. N., Watmough, T., and Witbaard, R.: Spatial and tidal variation in food supply to shallow cold-water coral reefs of the Mingulay Reef complex (Outer Hebrides, Scotland), Mar. Ecol. Prog. Ser., 444, 97–115, https://doi.org/10.3354/meps09430, 2012.
Eisele, M., Frank, N., Wienberg, C., Hebbeln, D., López Correa, M., Douville, E., and Freiwald, A.: Productivity controlled cold-water coral growth periods during the last glacial off Mauritania, Mar. Geol., 280, 143–149, https://doi.org/10.1016/j.margeo.2010.12.007, 2011.
Findlay, H. S., Artioli, Y., Moreno Navas, J., Hennige, S. J., Wicks, L. C., Huvenne, V. A. I., Woodward, E. M. S., and Roberts, J. M.: Tidal downwelling and implications for the carbon biogeochemistry of cold-water corals in relation to future ocean acidification and warming, Global Change Biol., 19, 2708–2719, https://doi.org/10.1111/gcb.12256, 2013.
Findlay, H. S., Hennige, S. J., Wicks, L. C., Navas, J. M., Woodward, E. M. S., and Roberts, J. M.: Fine-scale nutrient and carbonate system dynamics around cold-water coral reefs in the northeast Atlantic, Sci. Rep., 4, 1–10, https://doi.org/10.1038/srep03671, 2014.
Fink, H. G., Wienberg, C., Hebbeln, D., Mcgregor, H. V, Schmiedl, G., Taviani, M., and Freiwald, A.: Oxygen control on Holocene cold-water coral development in the eastern Mediterranean Sea, Deep-Sea Res. Pt. I, 62, 89–96, https://doi.org/10.1016/j.dsr.2011.12.013, 2012.
Fink, H. G., Wienberg, C., De Pol-Holz, R., Wintersteller, P., and Hebbeln, D.: Cold-water coral growth in the Alboran Sea related to high productivity during the Late Pleistocene and Holocene, Mar. Geol., 339, 71–82, https://doi.org/10.1016/j.margeo.2013.04.009, 2013.
Flögel, S., Dullo, W. Chr., Pfannkuche, O., Kiriakoulakis, K., and Rüggeberg, A.: Geochemical and physical constraints for the occurrence of living cold-water corals, Deep-Sea Res. Pt. II, 99, 19–26, https://doi.org/10.1016/j.dsr2.2013.06.006, 2014.
Frahm, J.-P. and Gradstein, R. S.: An Altitudinal Zonation of Tropical Rain Forests Using Bryophytes, J. Biogeogr., 18, 669–678, 1991.
Frank, N., Freiwald, A., López Correa, M., Wienberg, C., Eisele, M., Hebbeln, D., Van Rooij, D., Henriet, J. P., Colin, C., van Weering, T., de Haas, H., Buhl-Mortensen, P., Roberts, J. M., De Mol, B., Douville, E., Blamart, D., and Hatté, C.: Northeastern Atlantic cold-water coral reefs and climate, Geology, 39, 743–746, https://doi.org/10.1130/G31825.1, 2011.
Frederiksen, R., Jensen, A., and Westerberg, H.: The distribution of the scleractinian coral Lophelia pertusa around the Faroe islands and the relation to internal tidal mixing, Sarsia, 77, 157–171, https://doi.org/10.1080/00364827.1992.10413502, 1992.
Freiwald, A. and Roberts, J. M.: Cold-Water Corals and Ecosystems, 1st ed., Springer-Verlag, 1243 pp., 2005.
Genin, A., Dayton, P. K., Lonsdale, P. F., and Spiess, F. N.: Corals on seamount peaks provide evidence of current acceleration over deep-sea topography, Nature, 322, 59–61, 1986.
Gerkema, T., Lam, F. P. A., and Maas, L. R. M.: Internal tides in the Bay of Biscay: Conversion rates and seasonal effects, Deep-Sea Res. Pt. II, 51, 2995–3008, https://doi.org/10.1016/j.dsr2.2004.09.012, 2004.
Grubb, P. J.: Interpretation of the “Massenerhebung” Effect on Tropical Mountains, Nature, 229, 44–45, https://doi.org/10.1038/229044a0, 1971.
Grubb, P. J. and Whitmore, T. C.: A Comparison of Montane and Lowland Rain Forest in Ecuador: II. The Climate and its Effects on the Distribution and Physiognomy of the Forests, J. Ecol., 54, 303–333, 1966.
Guihen, D., White, M., and Lundälv, T.: Zooplankton drive diurnal changes in oxygen concentration at Tisler cold-water coral reef, Coral Reefs, 37, 1013–1025, https://doi.org/10.1007/s00338-018-1711-0, 2018.
Hastings, A., Byers, J. E., Crooks, J. A., Cuddington, K., Jones, C. G., Lambrinos, J. G., Talley, T. S., and Wilson, W. G.: Ecosystem engineering in space and time, Ecol. Lett., 10, 153–164, https://doi.org/10.1111/j.1461-0248.2006.00997.x, 2007.
Hebbeln, D., Wienberg, C., Dullo, W. C., Freiwald, A., Mienis, F., Orejas, C., and Titschack, J.: Cold-water coral reefs thriving under hypoxia, Coral Reefs, 39, 853–859, https://doi.org/10.1007/s00338-020-01934-6, 2020.
Hennige, S. J., Larsson, A. I., Orejas, C., Gori, A., De Clippele, L. H., Lee, Y. C., Jimeno, G., Georgoulas, K., Kamenos, N. A., and Roberts, J. M.: Using the Goldilocks Principle to model coral ecosystem engineering, P. Roy. Soc. B-Bio., 288, 1956, https://doi.org/10.1098/rspb.2021.1260, 2021.
Henry, L.-A., Moreno Navas, J., and Roberts, J. M.: Multi-scale interactions between local hydrography, seabed topography, and community assembly on cold-water coral reefs, Biogeosciences, 10, 2737–2746, https://doi.org/10.5194/bg-10-2737-2013, 2013.
Holliday, N. P., Pollard, R. T., Read, J. F., and Leach, H.: Water mass properties and fluxes in the Rockall Trough, 1975–1998, Deep-Sea Res. Pt. I, 47, 1303–1332, https://doi.org/10.1016/S0967-0637(99)00109-0, 2000.
Lo Iacono, C., Gràcia, E., Ranero, C. R., Emelianov, M., Huvenne, V. A. I., Bartolomé, R., Booth-Rea, G., Prades, J., Ambrosog, S., Dominguezg, C., Grinyóg, J., Rubioh, E., and Torrenth, J.: The West Melilla cold water coral mounds, Eastern Alboran Sea: Morphological characterization and environmental context, Deep-Sea Res. Pt. II, 99, 316–326, https://doi.org/10.1016/j.dsr2.2013.07.006, 2014.
Johnson, C., Sherwin, T., Smythe-Wright, D., Shimmield, T., and Turrel, W.: Wyville Thomson Ridge Overflow Water: Spatial and temporal distribution in the Rockall Trough, Deep-Sea Res. Pt. I,, 57, 1153–1162, https://doi.org/10.1016/j.dsr.2010.07.006, 2010.
Jones, C. G., Lawton, J. H., Shachak, M., Jones, C. G., Lawton, J. H., and Shachak, M.: Organisms as Ecosystem Engineers, Oikos, 69, 373–386, 1994.
Juva, K., Flögel, S., Karstensen, J., Linke, P., and Dullo, W.-C.: Tidal dynamics control on cold-water coral growth: A high-resolution multivariable study on eastern Atlantic cold-water coral sites, Front. Mar. Sci., 7, 132, https://doi.org/10.3389/FMARS.2020.00132, 2020.
Kazanidis, G., Henry, L. A., Vad, J., Johnson, C., De Clippele, L. H., and Roberts, J. M.: Sensitivity of a cold-water coral reef to interannual variability in regional oceanography, Divers. Distrib., 27, 1719–1731, https://doi.org/10.1111/ddi.13363, 2021.
Kenyon, N. H., Akhmetzhanov, A. M., Wheeler, A. J., van Weering, T. C. E., de Haas, H., and Ivanov, M. K.: Giant carbonate mud mounds in the southern Rockall Trough, Mar. Geol., 195, 5–30, https://doi.org/10.1016/S0025-3227(02)00680-1, 2003.
Legg, S. and Klymak, J.: Internal Hydraulic Jumps and Overturning Generated by Tidal Flow over a Tall Steep Ridge, J. Phys. Oceanogr., 38, 1949–1964, https://doi.org/10.1175/2008jpo3777.1, 2008.
Li, G., Cheng, L., Zhu, J., Trenberth, K. E., Mann, M. E., and Abraham, J. P.: Increasing ocean stratification over the past half-century, Nat. Clim. Change, 10, 1116–1123, https://doi.org/10.1038/s41558-020-00918-2, 2018.
Lim, A., Huvenne, V. A. I., Vertino, A., Spezzaferri, S., and Wheeler, A. J.: New insights on coral mound development from groundtruthed high-resolution ROV-mounted multibeam imaging, Mar. Geol., 403, 225–237, https://doi.org/10.1016/j.margeo.2018.06.006, 2018.
Maier, S. R., Kutti, T., Bannister, R. J., Fang, J. K. H., van Breugel, P., van Rijswijk, P., and van Oevelen, D.: Recycling pathways in cold-water coral reefs: Use of dissolved organic matter and bacteria by key suspension feeding taxa, Sci. Rep., 10, 1–13, https://doi.org/10.1038/s41598-020-66463-2, 2020a.
Maier, S. R., Bannister, R. J., van Oevelen, D., and Kutti, T.: Seasonal controls on the diet, metabolic activity, tissue reserves and growth of the cold-water coral Lophelia pertusa, Coral Reefs, 39, 173–187, https://doi.org/10.1007/s00338-019-01886-6, 2020b.
Maier, S. R., Mienis, F., de Froe, E., Soetaert, K., Lavaleye, M., Duineveld, G., Beauchard, O., van der Kaaden, A.-S., Koch, B. P., and van Oevelen, D.: Reef communities associated with “dead” cold-water coral framework drive resource retention and recycling in the deep sea, Deep-Sea Res. Pt. I, 175, 103574, https://doi.org/10.1016/j.dsr.2021.103574, 2021a.
Maier, S. R., Mienis, F., de Froe, E., Soetaert, K., Lavalaye, M., Duineveld, G., Beauchard, O., van der Kaaden, A.-S., Koch, B., abd van Oevelen, D.: Raw data for “Reef communities associated with “dead” cold-water coral framework drive high resource retention and fast recycling in the deep sea”, Zenodo [data set], https://doi.org/10.5281/zenodo.4076146, 2021b.
Maier, S. R., Brooke, S., De Clippele, L. H., de Froe, E., van der Kaaden, A., Kutti, T., Mienis, F., and van Oevelen, D.: On the paradox of thriving cold-water coral reefs in the food-limited deep sea, Biol. Rev., 98, 1768–1795, https://doi.org/10.1111/brv.12976, 2023.
Mienis, F., van Weering, T., de Haas, H., de Stigter, H., Huvenne, V., and Wheeler, A.: Carbonate mound development at the SW Rockall Trough margin based on high resolution TOBI and seismic recording, Mar. Geol., 233, 1–19, https://doi.org/10.1016/j.margeo.2006.08.003, 2006.
Mienis, F., de Stigter, H. C., White, M., Duineveld, G., de Haas, H., and van Weering, T. C. E.: Hydrodynamic controls on cold-water coral growth and carbonate-mound development at the SW and SE Rockall Trough Margin, NE Atlantic Ocean, Deep-Sea Res. Pt. I, 54, 1655–1674, https://doi.org/10.1016/j.dsr.2007.05.013, 2007.
Mienis, F., de Stigter, H. C., de Haas, H., and van Weering, T. C. E.: Near-bed particle deposition and resuspension in a cold-water coral mound area at the Southwest Rockall Trough margin, NE Atlantic, Deep-Sea Res. Pt. I, 56, 1026–1038, https://doi.org/10.1016/j.dsr.2009.01.006, 2009.
Mienis, F., Bouma, T. J., Witbaard, R., van Oevelen, D., and Duineveld, G. C. A.: Experimental assessment of the effects of cold-water coral patches on water flow, Mar. Ecol. Prog. Ser., 609, 101–117, https://doi.org/10.3354/meps12815, 2019.
Mohn, C. and White, M.: Remote sensing and modelling of bio-physical distribution patterns at Porcupine and Rockall Bank, Northeast Atlantic, Cont. Shelf Res., 27, 1875–1892, https://doi.org/10.1016/j.csr.2007.03.006, 2007.
Mohn, C., Rengstorf, A., White, M., Duineveld, G., Mienis, F., Soetaert, K., and Grehan, A.: Linking benthic hydrodynamics and cold-water coral occurrences: A high-resolution model study at three cold-water coral provinces in the NE Atlantic, Prog. Oceanogr., 122, 92–104, https://doi.org/10.1016/j.pocean.2013.12.003, 2014.
Morato, T., González-Irusta, J. M., Dominguez-Carrió, C., Wei, C. L., Davies, A., Sweetman, A. K., Taranto, G. H., Beazley, L., García-Alegre, A., Grehan, A., Laffargue, P., Murillo, F. J., Sacau, M., Vaz, S., Kenchington, E., Arnaud-Haond, S., Callery, O., Chimienti, G., Cordes, E., Egilsdottir, H., Freiwald, A., Gasbarro, R., Gutiérrez-Zárate, C., Gianni, M., Gilkinson, K., Wareham Hayes, V. E., Hebbeln, D., Hedges, K., Henry, L. A., Johnson, D., Koen-Alonso, M., Lirette, C., Mastrototaro, F., Menot, L., Molodtsova, T., Durán Muñoz, P., Orejas, C., Pennino, M. G., Puerta, P., Ragnarsson, S., Ramiro-Sánchez, B., Rice, J., Rivera, J., Roberts, J. M., Ross, S. W., Rueda, J. L., Sampaio, Í., Snelgrove, P., Stirling, D., Treble, M. A., Urra, J., Vad, J., van Oevelen, D., Watling, L., Walkusz, W., Wienberg, C., Woillez, M., Levin, L. A., and Carreiro-Silva, M.: Climate-induced changes in the suitable habitat of cold-water corals and commercially important deep-sea fishes in the North Atlantic, Global Change Biol., 26, 2181–2202, https://doi.org/10.1111/gcb.14996, 2020.
Müller, M., Cherniawsky, J. Y., Foreman, M. G. G., and Von Storch, J. S.: Seasonal variation of the M 2 tide, Ocean Dynam., 64, 159–177, https://doi.org/10.1007/s10236-013-0679-0, 2014.
Nakatsuka, T., Handa, N., Harada, N., Sugimoto, T., and Imaizumi, S.: Origin and decomposition of sinking particulate organic matter in the deep water column inferred from the vertical distributions of its δ15N, δ13 and δ14, Deep-Sea Res. Pt. I, 44, 1957–1979, https://doi.org/10.1016/s0967-0637(97)00051-4, 1997.
Oksanen, J., Simpson, G., Blanchet, F., Kindt, R., Legendre, P., Minchin, P., O'Hara, R., Solymos, P., Stevens, M., Szoecs, E., Wagner, H., Barbour, M., Bedward, M., Bolker, B., Borcard, D., Carvalho, G., Chirico, M., de Caceres, M., Durand, S., Evangelista, H., FitzJohn, R., Friendly, M., Furneaux, B., Hannigan, G., Hill, M., Lathi, L., McGlinn, D., Ouellette, M., Ribeiro Cunha, E., Smith, T., Stier, A., ter Braak, C., and Weedon, J.: _vegan: Community Ecology Package_. R package version 2.6-4, https://cran.r-project.org/web/packages/vegan/index.html (last access: 13 February 2024), 2022.
Pereira, A. F., Beckmann, A., and Hellmer, H. H.: Tidal Mixing in the Southern Weddell Sea: Results from a Three-Dimensional Model, J. Phys. Ocean., 32, 2151–2170, https://doi.org/10.1175/1520-0485(2002)032<2151:TMITSW>2.0.CO;2, 2002.
Pirlet, H., Colin, C., Thierens, M., Latruwe, K., Van Rooij, D., Foubert, A., Frank, N., Blamart, D., Huvenne, V. A. I., Swennen, R., Vanhaecke, F., and Henriet, J. P.: The importance of the terrigenous fraction within a cold-water coral mound: A case study, Mar. Geol., 282, 13–25, https://doi.org/10.1016/j.margeo.2010.05.008, 2011.
Ragnarsson, S. Á., Burgos, J. M., Kutti, T., van den Beld, I., Egilsdóttir, H., Arnaud-Haond, S., and Grehan, A.: The Impact of Anthropogenic Activity on Cold-Water Corals, in: Marine Animal Forests, Springer International Publishing, 1–35, https://doi.org/10.1007/978-3-319-17001-5_27-1, 2016.
Reid, P. C., Fischer, A. C., Lewis-Brown, E., Meredith, M. P., Sparrow, M., Andersson, A. J., Antia, A., Bates, N. R., Bathmann, U., Beaugrand, G., Brix, H., Dye, S., Edwards, M., Furevik, T., Gangstø, R., Hátún, H., Hopcroft, R. R., Kendall, M., Kasten, S., Keeling, R., Le Quéré, C., Mackenzie, F. T., Malin, G., Mauritzen, C., Ólafsson, J., Paull, C., Rignot, E., Shimada, K., Vogt, M., Wallace, C., Wang, Z., and Washington, R.: Impacts of the Oceans on Climate Change, Adv. Mar. Biol., 56, 1–150, 2009.
Rengstorf, A. M., Mohn, C., Brown, C., Wisz, M. S., and Grehan, A. J.: Predicting the distribution of deep-sea vulnerable marine ecosystems using high-resolution data: Considerations and novel approaches,Deep-Sea Res. Pt. I, 93, 72–82, https://doi.org/10.1016/j.dsr.2014.07.007, 2014.
Rietkerk, M., Bastiaansen, R., Banerjee, S., Koppel, J. Van De, Baudena, M., and Doelman, A.: Evasion of tipping in complex systems through spatial pattern formation, Science, 169, https://doi.org/10.1126/science.abj0359, 2021.
Rix, L., De Goeij, J. M., Van Oevelen, D., Struck, U., Al-Horani, F. A., Wild, C., and Naumann, M. S.: Reef sponges facilitate the transfer of coral-derived organic matter to their associated fauna via the sponge loop, Mar. Ecol. Prog. Ser., 589, 85–96, https://doi.org/10.3354/meps12443, 2018.
Roberts, J. M. and shipboard party: Changing Oceans Expedition 2012, RRS James Cook 073 Cruise Report, 224 pp., 2013.
Schulz, K., Soetaert, K., Mohn, C., Korte, L., Mienis, F., Duineveld, G., and van Oevelen, D.: Linking large-scale circulation patterns to the distribution of cold water corals along the eastern Rockall Bank (northeast Atlantic), J. Mar. Syst., 212, 103456, https://doi.org/10.1016/j.jmarsys.2020.103456, 2020.
Shchepetkin, A. F. and McWilliams, J. C.: The regional oceanic modeling system (ROMS): A split-explicit, free-surface, topography-following-coordinate oceanic model, Ocean Model (Oxf), 9, 347–404, https://doi.org/10.1016/j.ocemod.2004.08.002, 2005.
Snelgrove, P. V. R., Soetaert, K., Solan, M., Thrush, S., Wei, C. L., Danovaro, R., Fulweiler, R. W., Kitazato, H., Ingole, B., Norkko, A., Parkes, R. J., and Volkenborn, N.: Global Carbon Cycling on a Heterogeneous Seafloor, Trends Ecol Evol, 33, https://doi.org/10.1016/j.tree.2017.11.004, 2017.
Soetaert, K., Mohn, C., Rengstorf, A., Grehan, A., and Van Oevelen, D.: Ecosystem engineering creates a direct nutritional link between 600-m deep cold-water coral mounds and surface productivity, Sci Rep, 6, 1–9, https://doi.org/10.1038/srep35057, 2016.
Sweetman, A. K., Thurber, A. R., Smith, C. R., Levin, L. A., Mora, C., Wei, C.-L., Gooday, A. J., Jones, D. O. B., Rex, M., Yasuhara, M., Ingels, J., Ruhl, H. A., Frieder, C. A., Danovaro, R., Würzberg, L., Baco, A., Grupe, B. M., Pasulka, A., Meyer, K. S., Dunlop, K. M., Henry, L.-A., and Roberts, J. M.: Major impacts of climate change on deep-sea benthic ecosystems, Elem Sci Anth, 5, 4, https://doi.org/10.1525/elementa.203, 2017.
Tittensor, D. P., Baco, A. R., Brewin, P. E., Clark, M. R., Consalvey, M., Hall-Spencer, J., Rowden, A. A., Schlacher, T., Stocks, K. I., and Rogers, A. D.: Predicting global habitat suitability for stony corals on seamounts, J Biogeogr, 36, 1111–1128, https://doi.org/10.1111/j.1365-2699.2008.02062.x, 2009.
Vad, J., Kazanidis, G., Henry, L. A., Jones, D. O. B., Gates, A. R., and Roberts, J. M.: Environmental controls and anthropogenic impacts on deep-sea sponge grounds in the Faroe-Shetland Channel, NE Atlantic: The importance of considering spatial scale to distinguish drivers of change, ICES Journal of Marine Science, 77, 451–461, https://doi.org/10.1093/icesjms/fsz185, 2020.
Vandorpe, T., Wienberg, C., Hebbeln, D., Van den Berghe, M., Gaide, S., Wintersteller, P., and Van Rooij, D.: Multiple generations of buried cold-water coral mounds since the Early-Middle Pleistocene Transition in the Atlantic Moroccan Coral Province, southern Gulf of Cádiz, Palaeogeogr Palaeoclimatol Palaeoecol, 485, 293–304, https://doi.org/10.1016/j.palaeo.2017.06.021, 2017.
van der Kaaden, A., Maier, S. R., Siteur, K., De Clippele, L. H., van de Koppel, J., Purkis, S. J., Rietkerk, M., Soetaert, K., and van Oevelen, D.: Tiger reefs: Self-organized regular patterns in deep-sea cold-water coral reefs, Ecosphere, 14, 10, https://doi.org/10.1002/ecs2.4654, 2023.
van der Kaaden, A.-S. and De Clippele, L. H.: Image/Video Annotation and Analysis. Zenodo protocol and functions. https://doi.org/10.5281/zenodo.5547565, https://doi.org/10.5281/zenodo.5547565, 2021.
van der Kaaden, A.-S., van Oevelen, D., Rietkerk, M., Soetaert, K., and van de Koppel, J.: Spatial Self-Organization as a New Perspective on Cold-Water Coral Mound Development, Front. Mar. Sci., 7, 1–8, https://doi.org/10.3389/fmars.2020.00631, 2020.
van der Kaaden, A.-S., Mohn, C., Gerkema, T., Maier, S. R., de Froe, E., van de Koppel, J., Rietkerk, M., Soetaert, K., and van Oevelen, D.: Feedbacks between hydrodynamics and cold-water coral mound development, Deep-Sea Res. Pt. I, 178, 103641, https://doi.org/10.1016/j.dsr.2021.103641, 2021.
van der Kaaden, A.-S., Mohn, C., Gerkema, T., Maier, S. R., de Froe, E., van de Koppel, J., Rietkerk, M., Soetaert, K., and van Oevelen, D.: Corrigendum to “Feedbacks between hydrodynamics and cold-water coral mound development”, Deep-Sea Res. Pt. I,, 184, 103743, https://doi.org/10.1016/j.dsr.2022.103743, 2022.
van der Land, C., Eisele, M., Mienis, F., de Haas, H., Hebbeln, D., Reijmer, J. J. G., and van Weering, T. C. E.: Carbonate mound development in contrasting settings on the Irish margin, Deep-Sea Res. Pt. II, 99, 297–306, https://doi.org/10.1016/j.dsr2.2013.10.004, 2014.
Van Engeland, T., Rune Godø, O., Johnsen, E., Duineveld, G. C. A., and van Oevelen, D.: Cabled ocean observatory data reveal food supply mechanisms to a cold-water coral reef, Prog. Oceanogr., 172, 51–64, https://doi.org/10.1016/j.pocean.2019.01.007, 2019.
van Haren, H., Mienis, F., Duineveld, G. C. A., and Lavaleye, M. S. S.: High-resolution temperature observations of a trapped nonlinear diurnal tide influencing cold-water corals on the Logachev mounds, Prog. Oceanogr., 125, 16–25, https://doi.org/10.1016/j.pocean.2014.04.021, 2014.
van Oevelen, D., Duineveld, G., Lavaleye, M., Mienis, F., Soetaert, K., and Heip, C. H. R.: The cold-water coral community as a hot spot for carbon cycling on continental margins: A food-web analysis from Rockall Bank (Northeast Atlantic), Limnol. Oceanogr., 54, 1829–1844, https://doi.org/10.4319/lo.2009.54.6.1829, 2009.
van Oevelen, D., Duineveld, G. C. A., Lavaleye, M. S. S., Kutti, T., and Soetaert, K.: Trophic structure of cold-water coral communities revealed from the analysis of tissue isotopes and fatty acid composition, Mar. Biol. Res., 14, 287–306, https://doi.org/10.1080/17451000.2017.1398404, 2018.
Vertino, A., Spezzaferri, S., Rüggeberg, A. R., Stalder, C., and Wheeler, A. J.: An overview on cold-water coral ecosystems and facies, in: Cushman Foundation Species Publication No. 44, 12–19, 2014.
Wagner, H., Purser, A., Thomsen, L., Jesus, C. C., and Lundälv, T.: Particulate organic matter fluxes and hydrodynamics at the Tisler cold-water coral reef, J. Mar. Syst., 85, 19–29, https://doi.org/10.1016/j.jmarsys.2010.11.003, 2011.
Wang, H., Lo Iacono, C., Wienberg, C., Titschack, J., and Hebbeln, D.: Cold-water coral mounds in the southern Alboran Sea (western Mediterranean Sea): Internal waves as an important driver for mound formation since the last deglaciation, Mar. Geol., 412, 1–18, https://doi.org/10.1016/j.margeo.2019.02.007, 2019.
Wang, H., Titschack, J., Wienberg, C., Korpanty, C., and Hebbeln, D.: The Importance of Ecological Accommodation Space and Sediment Supply for Cold-Water Coral Mound Formation, a Case Study from the Western Mediterranean Sea, Front. Mar. Sci., 8, 1–14, https://doi.org/10.3389/fmars.2021.760909, 2021.
White, M. and Dorschel, B.: The importance of the permanent thermocline to the cold water coral carbonate mound distribution in the NE Atlantic, Earth Planet. Sc. Lett., 296, 395–402, https://doi.org/10.1016/j.epsl.2010.05.025, 2010.
White, M., Mohn, C., de Stigter, H., and Mottram, G.: Deep-water coral development as a function of hydrodynamics and surface productivity around the submarine banks of the Rockall Trough, NE Atlantic, in: Cold-water Corals and Ecosystems, edited by: Freiwald, A. and Roberts, J. M., 503–514, 2005.
White, M., Roberts, J. M., and van Weering, T.: Do bottom-intensified diurnal tidal currents shape the alignment of carbonate mounds in the NE Atlantic?, Geo-Mar. Lett., 27, 391–397, https://doi.org/10.1007/s00367-007-0060-8, 2007.
Wienberg, C., Frank, N., Mertens, K. N., Stuut, J. B., Marchant, M., Fietzke, J., Mienis, F., and Hebbeln, D.: Glacial cold-water coral growth in the Gulf of Cádiz: Implications of increased palaeo-productivity, Earth Planet. Sc. Lett., 298, 405–416, https://doi.org/10.1016/j.epsl.2010.08.017, 2010.
Wienberg, C., Titschack, J., Frank, N., De Pol-Holz, R., Fietzke, J., Eisele, M., Kremer, A., and Hebbeln, D.: Deglacial upslope shift of NE Atlantic intermediate waters controlled slope erosion and cold-water coral mound formation (Porcupine Seabight, Irish margin), Quat. Sci. Rev., 237, 106310, https://doi.org/10.1016/j.quascirev.2020.106310, 2020.
Wienberg, C., Krengel, T., Frank, N., Wang, H., Van Rooij, D., and Hebbeln, D.: Cold-water coral mounds in the western Mediterranean Sea New insights into their initiation and development since the Mid-Pleistocene in response to changes of African hydroclimate, Quat. Sci. Rev., 293, 107723, https://doi.org/10.1016/j.quascirev.2022.107723, 2022.
Yahel, R., Yahel, G., and Genin, A.: Near- bottom depletion of zooplankton over coral reefs: I: Diurnal dynamics and size distribution, Coral Reefs, 24, 75–85, https://doi.org/10.1007/s00338-004-0449-z, 2005.
Zuur, A. F., Ieno, E. N., and Elphick, C. S.: A protocol for data exploration to avoid common statistical problems, Methods Ecol. Evol., 1, 3–14, https://doi.org/10.1111/j.2041-210x.2009.00001.x, 2010.
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.
Combining hydrodynamic simulations and annotated videos, we separated which hydrodynamic...
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