Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales.
21 pages International audience The Southern Ocean ecosystem at the Antarctic Peninsula has steep natural environmental gradients, e.g. in terms of water masses and ice cover, and experiences regional above global average climate change. An ecological macroepibenthic survey was conducted in three ec...
Published in: | Polar Biology |
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Main Authors: | , , , , , , , , , , , , , , , |
Other Authors: | , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2016
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Subjects: | |
Online Access: | https://hal.science/hal-01310185 https://doi.org/10.1007/s00300-015-1797-6 |
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ftsorbonneuniv:oai:HAL:hal-01310185v1 |
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record_format |
openpolar |
institution |
Open Polar |
collection |
HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
Southern Ocean Benthic habitats Ecoregions Bottom topography Canyon systems [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
spellingShingle |
Southern Ocean Benthic habitats Ecoregions Bottom topography Canyon systems [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems Gutt, Julian Alvaro, M. C. Barco, A. Böhmer, A. Bracher, A. David, Bruno de Ridder, Chantal Dorschel, B. Eléaume, Marc Janussen, Dorte Kersken, D. López-González, Pablo J. Martínez-Baraldés, I. Schröder, M. Segelken-Voigt, A. Teixidó, N. Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. |
topic_facet |
Southern Ocean Benthic habitats Ecoregions Bottom topography Canyon systems [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems |
description |
21 pages International audience The Southern Ocean ecosystem at the Antarctic Peninsula has steep natural environmental gradients, e.g. in terms of water masses and ice cover, and experiences regional above global average climate change. An ecological macroepibenthic survey was conducted in three ecoregions in the north-western Weddell Sea, on the continental shelf of the Antarctic Peninsula in the Bransfield Strait and on the shelf of the South Shetland Islands in the Drake Passage, defined by their environmental envelop. The aim was to improve the so far poor knowledge of the structure of this component of the Southern Ocean ecosystem and its ecological driving forces. It can also provide a baseline to assess the impact of ongoing climate change to the benthic diversity, functioning and ecosystem services. Different intermediate-scaled topographic features such as canyon systems including the corresponding topographically defined habitats ‘bank’, ‘upper slope’, ‘slope’ and ‘canyon/deep’ were sampled. In addition, the physical and biological environmental factors such as sea-ice cover, chlorophyll-a concentration, small-scale bottom topography and water masses were analysed. Catches by Agassiz trawl showed high among-station variability in biomass of 96 higher systematic groups including ecological key taxa. Large-scale patterns separating the three ecoregions from each other could be correlated with the two environmental factors, sea-ice and depth. Attribution to habitats only poorly explained benthic composition, and small-scale bottom topography did not explain such patterns at all. The large-scale factors, sea-ice and depth, might have caused large-scale differences in pelagic benthic coupling, whilst small-scale variability, also affecting larger scales, seemed to be predominantly driven by unknown physical drivers or biological interactions. |
author2 |
Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Italian National Antarctic Museum (MNA) Department of Earth, Environmental and Life Sciences (DISTAV) Università degli studi di Genova = University of Genoa (UniGe) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Institute of Environmental Physics Bremen (IUP) University of Bremen Muséum national d'Histoire naturelle (MNHN) Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Biologie Marine Université libre de Bruxelles (ULB) Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Sektion Marine Evertebraten I Senckenberg Forschungsinstitut und Naturmuseum Biodiversidad y Ecología de Invertebrados Marinos, Departamento de Fisiología y Zoología, Facultad de Biología Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg (OFFIS) Stazione Zoologica Anton Dohrn (SZN) Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM) Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Financial support from the SCAR biology programme ‘Antarctic Thresholds—Ecosystem Resilience and Adaptation’( AnT-ERA) through a post-expedition workshop held in Dijon, France, in 2014; from the Deutsche Forschungsgemeinschaft through the project JA-1063/17-1; from the Actions thématiques du Muséum ‘Emergences’ of the Muséum national d’Histoire naturelle, Paris, France; and from the Institut polaire français Paul Emile Victor (IPEV). |
format |
Article in Journal/Newspaper |
author |
Gutt, Julian Alvaro, M. C. Barco, A. Böhmer, A. Bracher, A. David, Bruno de Ridder, Chantal Dorschel, B. Eléaume, Marc Janussen, Dorte Kersken, D. López-González, Pablo J. Martínez-Baraldés, I. Schröder, M. Segelken-Voigt, A. Teixidó, N. |
author_facet |
Gutt, Julian Alvaro, M. C. Barco, A. Böhmer, A. Bracher, A. David, Bruno de Ridder, Chantal Dorschel, B. Eléaume, Marc Janussen, Dorte Kersken, D. López-González, Pablo J. Martínez-Baraldés, I. Schröder, M. Segelken-Voigt, A. Teixidó, N. |
author_sort |
Gutt, Julian |
title |
Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. |
title_short |
Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. |
title_full |
Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. |
title_fullStr |
Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. |
title_full_unstemmed |
Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. |
title_sort |
macroepibenthic communities at the tip of the antarctic peninsula, an ecological survey at different spatial scales. |
publisher |
HAL CCSD |
publishDate |
2016 |
url |
https://hal.science/hal-01310185 https://doi.org/10.1007/s00300-015-1797-6 |
geographic |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Weddell Sea Drake Passage South Shetland Islands Bransfield Strait Weddell |
geographic_facet |
Antarctic Southern Ocean The Antarctic Antarctic Peninsula Weddell Sea Drake Passage South Shetland Islands Bransfield Strait Weddell |
genre |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait Drake Passage Polar Biology Sea ice South Shetland Islands Southern Ocean Weddell Sea |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Bransfield Strait Drake Passage Polar Biology Sea ice South Shetland Islands Southern Ocean Weddell Sea |
op_source |
ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01310185 Polar Biology, 2016, 39 (5), pp.829-849. ⟨10.1007/s00300-015-1797-6⟩ http://link.springer.com/article/10.1007%2Fs00300-015-1797-6 |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1797-6 hal-01310185 https://hal.science/hal-01310185 doi:10.1007/s00300-015-1797-6 |
op_doi |
https://doi.org/10.1007/s00300-015-1797-6 |
container_title |
Polar Biology |
container_volume |
39 |
container_issue |
5 |
container_start_page |
829 |
op_container_end_page |
849 |
_version_ |
1802642469952684032 |
spelling |
ftsorbonneuniv:oai:HAL:hal-01310185v1 2024-06-23T07:45:49+00:00 Macroepibenthic communities at the tip of the Antarctic Peninsula, an ecological survey at different spatial scales. Gutt, Julian Alvaro, M. C. Barco, A. Böhmer, A. Bracher, A. David, Bruno de Ridder, Chantal Dorschel, B. Eléaume, Marc Janussen, Dorte Kersken, D. López-González, Pablo J. Martínez-Baraldés, I. Schröder, M. Segelken-Voigt, A. Teixidó, N. Alfred-Wegener-Institut, Helmholtz-Zentrum für Polar- und Meeresforschung = Alfred Wegener Institute for Polar and Marine Research = Institut Alfred-Wegener pour la recherche polaire et marine (AWI) Helmholtz-Gemeinschaft = Helmholtz Association Italian National Antarctic Museum (MNA) Department of Earth, Environmental and Life Sciences (DISTAV) Università degli studi di Genova = University of Genoa (UniGe) Helmholtz Centre for Ocean Research Kiel (GEOMAR) Institute of Environmental Physics Bremen (IUP) University of Bremen Muséum national d'Histoire naturelle (MNHN) Biogéosciences UMR 6282 (BGS) Université de Bourgogne (UB)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Biologie Marine Université libre de Bruxelles (ULB) Institut de Systématique, Evolution, Biodiversité (ISYEB ) Muséum national d'Histoire naturelle (MNHN)-Université Pierre et Marie Curie - Paris 6 (UPMC)-École Pratique des Hautes Études (EPHE) Université Paris Sciences et Lettres (PSL)-Université Paris Sciences et Lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Sektion Marine Evertebraten I Senckenberg Forschungsinstitut und Naturmuseum Biodiversidad y Ecología de Invertebrados Marinos, Departamento de Fisiología y Zoología, Facultad de Biología Carl Von Ossietzky Universität Oldenburg = Carl von Ossietzky University of Oldenburg (OFFIS) Stazione Zoologica Anton Dohrn (SZN) Institute of Marine Sciences / Institut de Ciències del Mar Barcelona (ICM) Consejo Superior de Investigaciones Cientificas España = Spanish National Research Council Spain (CSIC) Financial support from the SCAR biology programme ‘Antarctic Thresholds—Ecosystem Resilience and Adaptation’( AnT-ERA) through a post-expedition workshop held in Dijon, France, in 2014; from the Deutsche Forschungsgemeinschaft through the project JA-1063/17-1; from the Actions thématiques du Muséum ‘Emergences’ of the Muséum national d’Histoire naturelle, Paris, France; and from the Institut polaire français Paul Emile Victor (IPEV). 2016-05 https://hal.science/hal-01310185 https://doi.org/10.1007/s00300-015-1797-6 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s00300-015-1797-6 hal-01310185 https://hal.science/hal-01310185 doi:10.1007/s00300-015-1797-6 ISSN: 0722-4060 EISSN: 1432-2056 Polar Biology https://hal.science/hal-01310185 Polar Biology, 2016, 39 (5), pp.829-849. ⟨10.1007/s00300-015-1797-6⟩ http://link.springer.com/article/10.1007%2Fs00300-015-1797-6 Southern Ocean Benthic habitats Ecoregions Bottom topography Canyon systems [SDE.BE]Environmental Sciences/Biodiversity and Ecology [SDV.EE.ECO]Life Sciences [q-bio]/Ecology environment/Ecosystems info:eu-repo/semantics/article Journal articles 2016 ftsorbonneuniv https://doi.org/10.1007/s00300-015-1797-6 2024-05-30T23:52:03Z 21 pages International audience The Southern Ocean ecosystem at the Antarctic Peninsula has steep natural environmental gradients, e.g. in terms of water masses and ice cover, and experiences regional above global average climate change. An ecological macroepibenthic survey was conducted in three ecoregions in the north-western Weddell Sea, on the continental shelf of the Antarctic Peninsula in the Bransfield Strait and on the shelf of the South Shetland Islands in the Drake Passage, defined by their environmental envelop. The aim was to improve the so far poor knowledge of the structure of this component of the Southern Ocean ecosystem and its ecological driving forces. It can also provide a baseline to assess the impact of ongoing climate change to the benthic diversity, functioning and ecosystem services. Different intermediate-scaled topographic features such as canyon systems including the corresponding topographically defined habitats ‘bank’, ‘upper slope’, ‘slope’ and ‘canyon/deep’ were sampled. In addition, the physical and biological environmental factors such as sea-ice cover, chlorophyll-a concentration, small-scale bottom topography and water masses were analysed. Catches by Agassiz trawl showed high among-station variability in biomass of 96 higher systematic groups including ecological key taxa. Large-scale patterns separating the three ecoregions from each other could be correlated with the two environmental factors, sea-ice and depth. Attribution to habitats only poorly explained benthic composition, and small-scale bottom topography did not explain such patterns at all. The large-scale factors, sea-ice and depth, might have caused large-scale differences in pelagic benthic coupling, whilst small-scale variability, also affecting larger scales, seemed to be predominantly driven by unknown physical drivers or biological interactions. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula Bransfield Strait Drake Passage Polar Biology Sea ice South Shetland Islands Southern Ocean Weddell Sea HAL Sorbonne Université Antarctic Southern Ocean The Antarctic Antarctic Peninsula Weddell Sea Drake Passage South Shetland Islands Bransfield Strait Weddell Polar Biology 39 5 829 849 |