Articles | Volume 11, issue 7
https://doi.org/10.5194/bg-11-1799-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
https://doi.org/10.5194/bg-11-1799-2014
© Author(s) 2014. This work is distributed under
the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Research article
| 
07 Apr 2014
Research article |
| 07 Apr 2014
Environmental forcing of the Campeche cold-water coral province, southern Gulf of Mexico
D. Hebbeln
Center for Marine Environmental Sciences (MARUM), University of Bremen, Bremen, Germany
C. Wienberg
Center for Marine Environmental Sciences (MARUM), University of Bremen, Bremen, Germany
P. Wintersteller
Center for Marine Environmental Sciences (MARUM), University of Bremen, Bremen, Germany
A. Freiwald
Senckenberg am Meer, Marine Research Department, Wilhelmshaven, Germany
M. Becker
Center for Marine Environmental Sciences (MARUM), University of Bremen, Bremen, Germany
L. Beuck
Senckenberg am Meer, Marine Research Department, Wilhelmshaven, Germany
C. Dullo
Helmholtz Centre for Ocean Research Kiel (GEOMAR), Kiel, Germany
G. P. Eberli
Rosenstiel School for Marine and Atmospheric Science (RSMAS), University of Miami, Miami, USA
S. Glogowski
Helmholtz Centre for Ocean Research Kiel (GEOMAR), Kiel, Germany
L. Matos
Centro de Estudos do Ambiente e do Mar (CESAM), Aveiro, Portugal
Instituto Portugues do Mar e da Atmosfera (IPMA), Lisbon, Portugal
Center for Marine Environmental Sciences (MARUM), University of Bremen, Bremen, Germany
N. Forster
Senckenberg am Meer, Marine Research Department, Wilhelmshaven, Germany
H. Reyes-Bonilla
Universidad Autónoma de Baja California Sur, La Paz, Mexico
M. Taviani
Institute of Marine Sciences, National Research Council, Bologna, Italy
Biology Department, Woods Hole Oceanographic Institution, Woods Hole, USA
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Joost de Vries, Fanny Monteiro, Gerald Langer, Colin Brownlee, and Glen Wheeler
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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.
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.
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.
Hyunjae Chung, Jikang Park, Mijin Park, Yejin Kim, Unyoung Chun, Sukyoung Yun, Won Sang Lee, Seung-Tae Yoon, and Won Young Lee
EGUsphere, https://doi.org/10.5194/egusphere-2023-2757, https://doi.org/10.5194/egusphere-2023-2757, 2024
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Understanding how marine animals adapt to spatial and temporal shifts in oceanographic conditions is of utmost importance. In this paper, we investigated the influence of changes in seawater properties on the seasonal 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.
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.
Cited articles
Arantes, R. C. M., Castro, C. B., Pires, D. O., and Seoane, J. C. S.: Depth and water mass zonation and species associations of cold-water octocoral and stony coral communities in the southwestern Atlantic, Mar. Ecol.-Prog. Ser., 397, 71–79, 2009.
Becker, E. L., Cordes, E. E., Macko, S. A., and Fisher, C. R.: Importance of seep primary production to Lophelia pertusa and associated fauna in the Gulf of Mexico, Deep-Sea Res. Pt. I, 56, 786–800, 2009.
Brooke, S. and Schroeder, W. W.: State of the U.S. deep coral ecosystems in the northern Gulf of Mexico region: Florida Straits to Texas, in: The State of Deep Coral Ecosystems of the United States, edited by: Lumsden, S. E., Hourigan, T. F., and Bruckner, A. W., NOAA Technical Memorandum CRCP-3, Silver Spring MD, 271–306, 2007.
Brooke, S. and Young, C. M.: Reproductive ecology of a deep-water scleractinian coral, Oculina varicosa, from the southeast Florida shelf, Cont. Shelf Res., 23, 847–858, 2003.
Brooke, S. D., Holmes, M. W., and Young, C. M.: Sediment tolerance of two different morphotypes of the deep-sea coral Lophelia pertusa from the Gulf of Mexico, Mar. Ecol.-Prog. Ser., 390, 137–144, 2009.
Buhl-Mortensen, L. and Mortensen, P. B.: Symbiosis in deep-water corals, Symbiosis, 37, 33–61, 2004.
Cairns, S. D.: The Deep-Water Scleractinia of the Caribbean Sea and Adjacent Waters, Studies on the Fauna of Curaçao and Other Caribbean Islands, 57, 341 pp., 1979.
Cairns, S. D., Opresko, D. M., Hopkins, T. S., and Schroeder, W. W.: New records of deep-water Cnidaria (Scleractinia and Antipatharia) from the Gulf of Mexico, Northeast Gulf Science, 13, 1–11, 1993.
Caress, D. W. and Chayes, D. N.: Improved processing of Hydrosweep DS Multibeam Data on the R/V MAURICE EWING, Geophys. Res., 18, 631–650, 1996.
Carlier, A., Le Guilloux, E., Olu-Le Roy, 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, 2009.
Carrillo González, F., Ochoa, J., Candela, J., Badan, A., Sheinbaum, J., and González Navarro, J. I.: Tidal currents in the Yucatan Channel, Geof. Int., 46, 199–209, 2007.
Caruso, J. H., Ross, S. W., Sulak, K. J., and Sedberry, G. R.: Deep-water chaunacid and lophiid anglerfishes (Pisces: Lophiiformes) off the south-eastern United States, J. Fish Biol., 70, 1015–1026, 2007.
Colman, J. G., Gordaon, D. M., Lane, A. P., Forde, M. J., and Fitzpatrick, J.: Carbonate mounds off Mauretania, Northwest Africa: status of deep-water corals and implications for management of fishing and oil exploration activities, in: Cold-water Corals and Ecosystems, edited by: Freiwald, A., and Roberts, J. M., Springer, Berlin-Heidelberg, 417–441, 2005.
Cordes, E. E., McGinley, M. P., Podowski, E. L., Becker, E. L., Lessard-Pilon, S., Viada, S. T., and Fisher, C. R.: Coral communities of the deep Gulf of Mexico, Deep-Sea Res. Pt. I, 55, 777–787, 2008.
Correa, T. B. S., Eberli, G. P., Grasmueck, M., Reed, J. K., and Correa, A. M. S.: Genesis and morphology of cold-water coral ridges in a unidirectional current regime, Mar. Geol., 326–328, 14–27, 2012a.
Correa, T. B. S., Grasmueck, M., Eberli, G. P., Reed, J. K., Verwer, K., and Purkis, S. A. M.: Variability of cold-water coral mounds in a high sediment input and tidal current regime, Straits of Florida, Sedimentology, 59, 1278–1304, 2012b.
Davies, A. J. and Guinotte, J. M.: Global habitat suitability for framework-forming cold-water corals, Plos One, 6, e18483, https://doi.org/10.1371/journal.pone.0018483, 2011.
Davies, A. J., Wisshak, M., Orr, J. C., and Roberts, J. M.: Predicting suitable habitat for the cold-water coral Lophelia pertusa (Scleractinia), Deep-Sea Res. Pt. I, 55, 1048–1062, 2008.
Davies, A. J., Duineveld, G., Lavaleye, M., Bergman, M. J., 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.
Davies, A. J., Duineveld, G. C. A., van Weering, T. C. E., Mienis, F., Quattrini, A. M., Seim, H. E., Bane, J. M., and Ross, S. W.: Short-term environmental variability in cold-water coral habitat at Viosca Knoll, Gulf of Mexico, Deep-Sea Res. Pt. I, 57, 199–212, 2010.
Deines, K. L.: Backscatter estimation using broadband acoustic Doppler current profilers, Proceedings of the Sixth Working Conference on Current Measurement, San Diego, CA, IEEE, 249-253, 1999.
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 oxgen change, J. Experim. Mar. Biol. Ecol., 349, 205–214, 2007.
Dodds, L. A., Black, K. D., Orr, H., and Roberts, J. M.: Lipid biomarkers reveal geographical differences in food supply to the cold-water coral Lophelia pertusa (Scleractinia), Mar. Ecol.-Prog. Ser., 397, 113–124, 2009.
Dorschel, B., Hebbeln, D., Rüggeberg, A., and Dullo, W.-C.: Growth and erosion of a cold-water coral covered carbonate mound in the Northeast Atlantic during the Late Pleistocene and Holocene, Earth Planet. Sci. Lett., 233, 33–44, 2005.
Dorschel, B., Hebbeln, D., Foubert, A., White, M., and Wheeler, A. J.: Hydrodynamics and cold-water coral facies distribution related to recent sedimentary processes at Galway Mound west of Ireland, Mar. Geol., 244, 184–195, 2007.
Dorschel, B., Wheeler, A., Monteys, X., and Verbruggen, K.: Atlas of the Deep-Water Seabed: Ireland, Springer, 164 pp., 2010.
Douarin, M., Elliot, M., Noble, S. R., Sinclair, D., Henry, L.-A., Long, D., Moreton, S. G., and Murray Roberts, J.: Growth of north-east Atlantic cold-water coral reefs and mounds during the Holocene: A high resolution U-series and 14C chronology, Earth Planet. Sci. Lett., 375, 176–187, 2013.
Duineveld, G. C. A., Lavleye, M. S. S., and Berghuis, E. M.: Particle flux and food supply to a seamount cold-water coral community (Galicia Bank, NW Spain), Mar. Ecol.-Prog. Ser., 277, 13–23, 2004.
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, B. Mar. Sci., 81, 449–467, 2007.
Dullo, W.-C., Flögel, S., and Rüggeberg, A.: Cold-water coral growth in relation to the hydrography of the Celtic and Nordic European continental margin, Mar. Ecol.-Prog. Ser., 371, 165–176, 2008.
Duncan, P. M.: A description of the Madreporaria dredged up during the expeditions of HMS Porcupine in 1869 and 1870. Part I, Trans. Zool. Soc. London, 8, 303–344, 1873.
Eisele, M., Hebbeln, D., and Wienberg, C.: Growth history of a cold-water coral covered carbonate mound – Galway Mound, Porcupine Seabight, NE-Atlantic, Mar. Geol., 253, 160–169, 2008.
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, 2011.
Etnoyer, P., Shirley, T., and Lavelle, K. A.: Deep coral and associated species taxonomy and ecology (DeepCAST) II expedition report, NOAA Technical Memorandum. NOAA/NOS Center for Coastal Environmental Health and Biomolecular Research, Charleston, 1–42, 2011.
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, 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, 2013.
Flögel, S., Dullo, W. C., 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, 2014.
Fosså, J. H., Lindberg, B., Christensen, O., Lundälv, T., Svellingen, I., Mortensen, P. B., and Alsvag, J.: Mapping of Lophelia reefs in Norway: experiences and survey methods, in: Cold-water Corals and Ecosystems, edited by: Freiwald, A., and Roberts, J. M., Springer, Berlin-Heidelberg, 359–391, 2005.
Frank, N., Ricard, E., Lutringer-Paquet, A., van der Land, C., Colin, C., Blamart, D., Foubert, A., Van Rooij, D., Henriet, J.-P., de Haas, H., and van Weering, T.: The Holocene occurrence of cold water corals in the NE Atlantic: Implications for coral carbonate mound evolution, Mar. Geol., 266, 129–142, 2009.
Freiwald, A. and Roberts, J. M.: Cold-water Corals and Ecosystems, Springer, Berlin-Heidelberg, 1243 pp., 2005.
Freiwald, A., Hühnerbach, V., Lindberg, B., Wilson, J. B., and Campbell, J.: The Sula Reef Complex, Norwegian Shelf, Facies, 47, 179–200, 2002.
Freiwald, A., Fosså, J. H., Grehan, A., Koslow, T., and Roberts, J. M.: Cold-water Coral Reefs, UNEP-WCMC, Cambridge, UK, Biodiversity Series 22, 84 pp., 2004.
Freiwald, A., Beuck, L., Rüggeberg, A., Taviani, M., Hebbeln, D., and R/V Meteor Cruise M70-1 participants: The white coral community in the central Mediterranean Sea revealed by ROV surveys, Oceanography, 22, 58–74, 2009.
Gori, A., Orejas, C., Madurell, T., Bramanti, L., Martins, M., Quintanilla, E., Marti-Puig, P., Lo Iacono, C., Puig, P., Requena, S., Greenacre, M., and Gili, J. M.: Bathymetrical distribution and size structure of cold-water coral populations in the Cap de Creus and Lacaze-Duthiers canyons (northwestern Mediterranean), Biogeosciences, 10, 2049–2060, https://doi.org/10.5194/bg-10-2049-2013, 2013.
Gori, A., Grover, R., Orejas, C., Sikorski, S., and Ferrier-Pagès, C.: Uptake of dissolved free amino acids by four cold-water coral species from the Mediterranean Sea, Deep-Sea Res. Pt. II, 99, 42–50, 2014.
Grasmueck, M., Eberli, G. P., Viggiano, D. A., Correa, T., Rathwell, G., and Luo, J.: Autonomous underwater vehicle (AUV) mapping reveals coral mound distribution, morphology, and oceanography in deep water of the Straits of Florida, Geophys. Res. Lett., 33, L23616, https://doi.org/10.1029/2006GL027734, 2006.
Hebbeln, D., Wienberg, C., and cruise participants: Report and preliminary results of R/V MARIA S. MERIAN cruise MSM20-4, WACOM – West-Atlantic Cold-water Coral Ecosystems: The West Side Story, Bridgetown – Freeport, 14 March–7 April 2012, University of Bremen, 120 pp., 2012.
Henry, L. A.: A deep-sea coral "gateway" in the Northwestern Carribbean, in: Too precious to drill: The marine biodiversity of Belize, edited by: Palomares, M. L. D. and Pauly, D., Fisheries Centre Research Reports, 120–124, 2011.
Henry, L. A. and Roberts, J. M.: Biodiversity and ecological composition of macrobenthos on cold-water coral mounds and adjacent off-mound habitat in the bathyal Porcupine Seabight, NE Atlantic. Deep Sea Res. Part I, 54, 654–672, 2007.
Heywood, V. H.: The Global Biodiversity Assessment, The Globe, 30, 2–4, 1996.
Hübscher, C., Dullo, W. C., Flögel, S., Titschack, J., and Schönfeld, J.: Contourite drift evolution and related coral growth in the eastern Gulf of Mexico and its gateways, Int. J. Earth Sci., 99, S191–S206, 2010.
Kano, A., Ferdelman, T. G., Williams, T., Henriet, J.-P., Ishikawa, T., Kawagoe, N., Takashima, C., Kakizaki, Y., Abe, K., Sakai, S., Browning, E. L., Li, X., and Integrated Ocean Drilling Program Expedition 307 Scientists: Age constraints on the origin and growth history of a deep-water coral mound in the northeast Atlantic drilled during Integrated Ocean Drilling Program Expedition 307, Geology, 35, 1051–1054, 2007.
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, 2003.
Kiriakoulakis, K., Harper, E., and Wolff, G. A.: Lipids and nitrogeen isotopes of two deep-water corals from the North-East Atlantic: initial results and implications for their nutrition, in: Cold-water Corals and Ecosystems, edited by: Freiwald, A., and Roberts, J. M., Springer, Berlin-Heidelberg, 715–729, 2005.
Le Guilloux, E., Olu-Le Roy, K., Bourillet, J. F., Savoye, B., Iglésias, S. P., and Sibuet, M.: First observations of deep-sea coral reefs along the Angola margin, Deep-Sea Res. Pt. II, 56, 2394–2403, 2009.
Lessard-Pilon, S., Podowski, E. L., Cordes, E. E., and Fisher, C. R.: Megafauna community composition associated with Lophelia pertusa colonies in the Gulf of Mexico. Deep-Sea Res. Part II, 57, 1882–1890, 2010.
López Correa, M., Montagna, P., Joseph, N., Rüggeberg, A., Fietzke, J., Flögel, S., Dorschel, B., Goldstein, S. L., Wheeler, A., and Freiwald, A.: Preboreal onset of cold-water coral growth beyond the Arctic Circle revealed by coupled radiocarbon and U-series dating and neodymium isotopes, Quat. Sci. Rev., 34, 24–43, 2012.
Lutz, S. J. and Ginsburg, R. N.: State of the U.S. deep coral ecosystems in the United States Caribbean region: Puerto Rico and U.S. Virgin Islands, in: The State of Deep Coral Ecosystems of the United States, edited by: Lumsden, S. E., Hourigan, T. F., and Bruckner, A. W., NOAA Technical Memorandum CRCP-3, Silver Spring MD, 307–365, 2007.
Mah, C., Nizinski, M., and Lundsten, L.: Phylogenetic revision of the Hippasterinae (Goniasteridae; Asteroidea): systematics of deep sea corallivores, including one new genus and three new species, Zool. J. Linnean Soc., 160, 266–301, 2010.
Mangini, A., Godoy, J. M., Godoy, M. L., Kowsmann, R., Santos, G. M., Ruckelshausen, M., Schroeder-Ritzrau, A., and Wacker, L.: Deep sea corals off Brazil verify a poorly ventilated Southern Pacific Ocean during H2, H1 and the Younger Dryas, Earth Planet. Sci. Lett., 293, 269–276, 2010.
Merino, M.: Upwelling on the Yucatan Shelf: hydrographic evidence, J. Marine Syst., 13, 101–121, 1997.
Messing, C. G., Neumann, A. C., and Lang, J. C.: Biozonation of deep-water lithoherms and associated hardgrounds in the northeastern Straits of Florida, Palaois, 5, 15–33, 1990.
Messing, C. G., Reed, J. K., Brooke, S. D., and Ross, S. W.: Deep-Water Coral Reefs of the United States, in: Coral Reefs of the USA, edited by: Riegl, B. and Dodge, R. E., Springer, 763–787, 2008.
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, 2007.
Mienis, F., Duineveld, G. C. A., Davies, A. J., Ross, S. W., Seim, H., Bane, J., and Van Weering, T. C. E.: The influence of near-bed hydrodynamic conditions on cold-water corals in the Viosca Knoll area, Gulf of Mexico, Deep-Sea Res. Pt. I, 60, 32–45, 2012.
Miller, K. J., Rowden, A. A., Williams, A., and Häussermann, V.: Out of their depth? Isolated deep populations of the cosmopolitan coral Desmophyllum dianthus may be highly vulnerable to environmental change, Plos One, 6, e19004, https://doi.org/10.1371/journal.pone.0019004, 2011.
Molinari, R. L. and Morrison, J.: The separation of the Yucatan Current from the Campeche Bank and the intrusion of the Loop Current into the Gulf of Mexico, J. Geophysic. Res., 93, 10645–10654, 1988.
Moore, D. R. and Bullis, H. R.: A deep-water coral reef in the Gulf of Mexico, Bull. Mar. Sci. Gulf Caribbean, 10, 125–128, 1960.
Moseley, H. N.: Report on certain hydroid, alcyonarian, and madreporarian corals procured during the voyage of H.M.S. Challenger, in the years 1873–1876. Report of Scientific Research of H.M.S. Challenger, Zoology, 2, 1–248, 1881.
Mueller, C. E., Lundälv, T., Middelburg, J. J., and Van Oevelen, D.: The symbiosis between Lophelia pertusa and Eunice norvegica stimulates coral calcification and worm assimilation, Plos One, 8, e58660, https://doi.org/10.1371/journal.pone.0058660, 2013.
Müller-Karger, F. E., Walsh, J. J., Evans, R. H., and Meyers, M. B.: On the seasonal phytoplankton concentration and sea surface temperature cycles of the Gulf of Mexico as determined by satellites, J. Geophysic. Res., 96, 12645–12665, 1991.
Mullins, H. T., Newton, C. R., Heath, K., and Vanburen, H. M.: Modern deep-water coral mounds north of Little Bahama Bank: criteria for recognition of deep-water coral bioherms in the rock record, J. Sed. Petrol., 51, 999–1013, 1981.
Neumann, A. C. and Ball, M. M.: Submersible observations in Straits of Florida – geology and bottom currents, Geol. Soc. Americ. Bull., 81, 2861–2873, 1970.
Neumann, A. C., Kofoed, J. W., and Keller, G. H.: Lithoherms in the Straits of Florida, Geology, 5, 4–10, 1977.
Newton, C. R., Mullins, H. T., and Gardulski, A. F.: Coral mounds on the West Florida Slope: unanswered questions regarding the development of deepwater banks, Palaois, 2, 359–367, 1987.
Orejas, C., Gori, A., Lo Iacono, C., Puig, P., Gili, J. M., and Dale, M. R.: Cold-water corals in the Cap de Creus canyon (north-western Mediterranean): spatial distribution, density and anthropogenic impact, Mar. Ecol.-Prog. Ser., 397, 37–51, 2009.
Paull, C. K., Neumann, A. C., am Ende, B. A., Ussler III, W., and Rodriguez, N. M.: Lithoherms on the Florida–Hatteras slope, Mar. Geol., 166, 83–101, 2010.
Plüddemann, A. J., and Pinkel, R.: Characterization of the patterns of diel migration using a doppler sonar, Deep-Sea Res., 36, 509–530, 1989.
Reed, J. K.: Comparison of deep-water coral reefs and lithoherms off southeastern USA, Hydrobiol., 471, 57–60, 2002.
Reed, J. K., Weaver, D., and Pomponi, S. A.: Habitat and fauna of deep-water Lophelia pertusa coral reefs off the Southeastern USA: Blake Plateau, Straits of Florida, and Gulf of Mexico, B. Mar. Sci., 78, 343–375, 2006.
Reyes, J., Santodomingo, N., Gracia, A., Borrero-Pérez, G., Navas, G., Mejía-Ladino, L. M., Bermudéz, A., and Benavidos, M.: Southern Caribbean azooxanthellate coral communities off Colombia, in: Cold-water Corals and Ecosystems, edited by: Freiwald, A., and Roberts, J. M., Springer, Berlin-Heidelberg, 309–330, 2005.
Roberts, J. M., Wheeler, A. J., and Freiwald, A.: Reefs of the deep: The biology and geology of cold-water coral ecosystems, Science, 312, 543–547 2006.
Roberts, J. M., Wheeler, A. J., Freiwald, A., and Cairns, S. D.: Cold-water corals. The biology and geology of deep-sea coral habitats, Cambridge University Press, 336 pp., 2009.
Ross, S. W.: Unique deep-water ecosystems off the southeastern United States, Oceanography, 20, 130–139, 2007.
Ross, S. W. and Nizinski, M. S.: State of the U.S. deep coral ecosystems in the southeastern United States region: Cape Hatteras to the Florida Straits, in: The State of Deep Coral Ecosystems of the United States, edited by: Lumsden, S. E., Hourigan, T. F., and Bruckner, A. W., NOAA Technical Memorandum CRCP-3, Silver Spring MD, 233–270, 2007.
Ross, S. W. and Quattrini, A. M.: The fish fauna associated with deep coral banks off the southeastern United States, Deep-Sea Res. Pt. I, 54, 975–1007, 2007.
Sanamyan, N. P., Sanamyan, K. E., and Tabachnick, K. R.: The first species of Actiniaria, Spongiactis japonica gen.n., sp.n. (Cnidaria: Anthozoa), an obligate symbiont of a glass sponge, Invert. Zool., 9, 127–141, 2012.
Savini, A., Vertino, A., Marchese, F., Beuck, L., and Freiwald, A.: Mapping Cold-Water Coral Habitats at Different Scales within the Northern Ionian Sea (Central Mediterranean): An Assessment of Coral Coverage and Associated Vulnerability, PLoS ONE, 9, e87108, https://doi.org/10.1371/journal.pone.0087108, 2014.
Schroeder, W. W.: Observations of Lophelia pertusa and the surficial geology at a deep-water site in the northeastern Gulf of Mexico, Hydrobiol., 471, 29–33, 2002.
Schroeder, W. W., Brooke, S. D., Olson, J. B., Phaneuf, B., McDonough, J. J., and Etnoyer, P.: Occurrence of deep-water Lophelia pertusa and Madrepora oculata in the Gulf of Mexico, in: Cold-water Corals and Ecosystems, edited by: Freiwald, A. and Roberts, J. M., Springer, Berlin-Heidelberg, 297–307, 2005.
Schulkin, M. and Marsh, H. W.: Sound absorption in seawater, J. Acoust. Soc. Am., 34, 864–865, 1962.
Sheinbaum, J., Candela, J., Badan, A., and Ochoa, J.: Flow structure and transport in the Yucatan Channel, Geophys. Res. Lett., 29, 1040, https://doi.org/10.1029/2001GL013990, 2002.
Stevenson, A. and Rocha, C.: Evidence for the bioerosion of deep-water corals by echinoids in the Northeast Atlantic, Deep-Sea Res. Pt. I, 71, 73–78, 2013.
Taviani, M., Angeletti, L., Dimech, M., Mifsud, C., Freiwald, A., Harasewych, M. G., and Oliverio, M.: Coralliophilinae (Gastropoda: Muricidae) associated with deep-water coral banks in the Mediterranean, The Nautilus, 123, 106–112, 2009.
Thierens, M., Browning, E., Pirlet, H., Loutre, M. F., Dorschel, B., Huvenne, V. A. I., Titschack, J., Colin, C., Foubert, A., and Wheeler, A. J.: Cold-water coral carbonate mounds as unique palaeo-archives: the Plio-Pleistocene Challenger Mound record (NE Atlantic), Quaternary Sci. Rev., 73, 14–30, 2013.
Titschack, J., Thierens, M., Dorschel, B., Schulbert, C., Freiwald, A., Kano, A., Takashima, C., Kawagoe, N., and Li, X.: Carbonate budget of a cold-water coral mound (Challenger Mound, IODP Exp. 307), Mar. Geol., 259, 36–46, 2009.
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, 2009.
Van Rooij, D., De Mol, B., Huvenne, V., Ivanov, M., and Henriet, J. P.: Seismic evidence of current-controlled sedimentation in the Belgica mound province, upper Porcupine slope, southwest of Ireland, Mar. Geol., 195, 31–53, 2003.
Wawrik, B. and Paul, J. H.: Phytoplankton community structure and productivity along the axis of the Mississippi River Plume in oligotrophic Gulf of Mexico waters, Aqua. Microb. Ecol., 35, 185–196, 2004.
Wei, C. L., Rowe, G. T., Escobar-Briones, E., Nunnally, C., Soliman, Y., and Ellis, N.: Standing stocks and body size of deep-sea macrofauna: Predicting the baseline of 2010 Deepwater Horizon oil spill in the northern Gulf of Mexico, Deep-Sea Res. Pt. I, 69, 82–99, 2012.
Wessel, P. and Smith, W. H. F.: New, improved version of Generic Mapping Tools released, EOS, 79, p. 579, https://doi.org/10.1029/98EO00426, 1998.
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. Sci. Lett., 296, 395–402, 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., Springer, Berlin-Heidelberg, 503–514, 2005.
Wienberg, C., Hebbeln, D., Fink, H. G., Mienis, F., Dorschel, B., Vertino, A., López Correa, M., and Freiwald, A.: Scleractinian cold-water corals in the Gulf of Cádiz – first clues about their spatial and temporal distribution, Deep-Sea Res. Pt. I, 56, 1873–1893, 2009.
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. Sci. Lett., 298, 405–416, 2010.
Zavala-Hidalgo, J., Gallegos-García, A., Martínez-López, B., Morey, S. L., and O'Brien, J. J.: Seasonal upwelling on the Western and Southern Shelves of the Gulf of Mexico, Ocean Dynam., 56, 333–338, 2006.
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