Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows
International audience The size distribution and mean spatial trends of large particles (> 100 mu m, in equivalent spherical diameter, ESD) and mesozooplankton were investigated across the Mackenzie Shelf (southeast Beaufort Sea, Arctic Ocean) in July-August 2009. Our main objective was to combin...
Published in: | Biogeosciences |
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Main Authors: | , , , , , , |
Other Authors: | , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
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HAL CCSD
2012
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Online Access: | https://hal.science/hal-03502681 https://hal.science/hal-03502681/document https://hal.science/hal-03502681/file/bg-9-1301-2012.pdf https://doi.org/10.5194/bg-9-1301-2012 |
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ftsorbonneuniv:oai:HAL:hal-03502681v1 |
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Open Polar |
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HAL Sorbonne Université |
op_collection_id |
ftsorbonneuniv |
language |
English |
topic |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
spellingShingle |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography Forest, A. Stemmann, L. Picheral, M. Burdorf, L. Robert, D. Fortier, L. Babin, M. Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows |
topic_facet |
[SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography |
description |
International audience The size distribution and mean spatial trends of large particles (> 100 mu m, in equivalent spherical diameter, ESD) and mesozooplankton were investigated across the Mackenzie Shelf (southeast Beaufort Sea, Arctic Ocean) in July-August 2009. Our main objective was to combine results from an Underwater Vision Profiler 5 (UVP5) and traditional net tows (200 mu m mesh size) to characterize the structural diversity and functioning of the Arctic shelf-basin ecosystem and to assess the large-scale correspondence between the two methodological approaches. The core dataset comprised 154 UVP5 profiles and 29 net tows conducted in the shelf (< 100 m isobath), slope (100-1000 m) and basin (> 1000 m) regions of the study area. The mean abundance of total particles and zooplankton in the upper water column (< 75 m depth) declined exponentially with increasing distance from shore. Vertical and latitudinal patterns in total particle concentration followed those of chlorophyll a (chl a) concentration, with maximum values between 30 and 70 m depth. Based on the size-spectra derived from the UVP5 dataset, living organisms (0.1-10 mm ESD) accounted for an increasingly large proportion of total particle abundance (from 0.1 % to > 50 %) when progressing offshore and as the ESD of particles was increasing. Both the UVP5 and net tows determined that copepods dominated the zooplankton community (similar to 78-94 % by numbers) and that appendicularians were generally the second most abundant group (similar to 1-11 %). The vertical distribution patterns of copepods and appendicularians indicated a close association between \\mbox\primary\ production and the main grazers. Manual taxonomic counts and ZooScan image analyses shed further light on the size-structure and composition of the copepod community - which was dominated at similar to 95 % by a guild of 10 typical taxa. The size distributions of copepods, as evaluated with the 3 methods (manual counts, ZooScan and UVP5), showed consistent ... |
author2 |
Université Laval Québec (ULaval) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Mathématiques Jean Leray (LMJL) Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Forest, A. Stemmann, L. Picheral, M. Burdorf, L. Robert, D. Fortier, L. Babin, M. |
author_facet |
Forest, A. Stemmann, L. Picheral, M. Burdorf, L. Robert, D. Fortier, L. Babin, M. |
author_sort |
Forest, A. |
title |
Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows |
title_short |
Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows |
title_full |
Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows |
title_fullStr |
Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows |
title_full_unstemmed |
Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows |
title_sort |
size distribution of particles and zooplankton across the shelf-basin system in southeast beaufort sea: combined results from an underwater vision profiler and vertical net tows |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.science/hal-03502681 https://hal.science/hal-03502681/document https://hal.science/hal-03502681/file/bg-9-1301-2012.pdf https://doi.org/10.5194/bg-9-1301-2012 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean Beaufort Sea Mackenzie Shelf Zooplankton Copepods |
genre_facet |
Arctic Arctic Ocean Beaufort Sea Mackenzie Shelf Zooplankton Copepods |
op_source |
ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-03502681 Biogeosciences, 2012, 9 (4), pp.1301-1320. ⟨10.5194/bg-9-1301-2012⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-9-1301-2012 hal-03502681 https://hal.science/hal-03502681 https://hal.science/hal-03502681/document https://hal.science/hal-03502681/file/bg-9-1301-2012.pdf doi:10.5194/bg-9-1301-2012 |
op_rights |
http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.5194/bg-9-1301-2012 |
container_title |
Biogeosciences |
container_volume |
9 |
container_issue |
4 |
container_start_page |
1301 |
op_container_end_page |
1320 |
_version_ |
1769004164963106816 |
spelling |
ftsorbonneuniv:oai:HAL:hal-03502681v1 2023-06-18T03:39:24+02:00 Size distribution of particles and zooplankton across the shelf-basin system in southeast Beaufort Sea: combined results from an Underwater Vision Profiler and vertical net tows Forest, A. Stemmann, L. Picheral, M. Burdorf, L. Robert, D. Fortier, L. Babin, M. Université Laval Québec (ULaval) Laboratoire d'océanographie de Villefranche (LOV) Observatoire océanologique de Villefranche-sur-mer (OOVM) Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Laboratoire de Mathématiques Jean Leray (LMJL) Université de Nantes - UFR des Sciences et des Techniques (UN UFR ST) Université de Nantes (UN)-Université de Nantes (UN)-Centre National de la Recherche Scientifique (CNRS) 2012 https://hal.science/hal-03502681 https://hal.science/hal-03502681/document https://hal.science/hal-03502681/file/bg-9-1301-2012.pdf https://doi.org/10.5194/bg-9-1301-2012 en eng HAL CCSD European Geosciences Union info:eu-repo/semantics/altIdentifier/doi/10.5194/bg-9-1301-2012 hal-03502681 https://hal.science/hal-03502681 https://hal.science/hal-03502681/document https://hal.science/hal-03502681/file/bg-9-1301-2012.pdf doi:10.5194/bg-9-1301-2012 http://creativecommons.org/licenses/by/ info:eu-repo/semantics/OpenAccess ISSN: 1726-4170 EISSN: 1726-4189 Biogeosciences https://hal.science/hal-03502681 Biogeosciences, 2012, 9 (4), pp.1301-1320. ⟨10.5194/bg-9-1301-2012⟩ [SDU.STU.OC]Sciences of the Universe [physics]/Earth Sciences/Oceanography info:eu-repo/semantics/article Journal articles 2012 ftsorbonneuniv https://doi.org/10.5194/bg-9-1301-2012 2023-06-06T23:15:56Z International audience The size distribution and mean spatial trends of large particles (> 100 mu m, in equivalent spherical diameter, ESD) and mesozooplankton were investigated across the Mackenzie Shelf (southeast Beaufort Sea, Arctic Ocean) in July-August 2009. Our main objective was to combine results from an Underwater Vision Profiler 5 (UVP5) and traditional net tows (200 mu m mesh size) to characterize the structural diversity and functioning of the Arctic shelf-basin ecosystem and to assess the large-scale correspondence between the two methodological approaches. The core dataset comprised 154 UVP5 profiles and 29 net tows conducted in the shelf (< 100 m isobath), slope (100-1000 m) and basin (> 1000 m) regions of the study area. The mean abundance of total particles and zooplankton in the upper water column (< 75 m depth) declined exponentially with increasing distance from shore. Vertical and latitudinal patterns in total particle concentration followed those of chlorophyll a (chl a) concentration, with maximum values between 30 and 70 m depth. Based on the size-spectra derived from the UVP5 dataset, living organisms (0.1-10 mm ESD) accounted for an increasingly large proportion of total particle abundance (from 0.1 % to > 50 %) when progressing offshore and as the ESD of particles was increasing. Both the UVP5 and net tows determined that copepods dominated the zooplankton community (similar to 78-94 % by numbers) and that appendicularians were generally the second most abundant group (similar to 1-11 %). The vertical distribution patterns of copepods and appendicularians indicated a close association between \\mbox\primary\ production and the main grazers. Manual taxonomic counts and ZooScan image analyses shed further light on the size-structure and composition of the copepod community - which was dominated at similar to 95 % by a guild of 10 typical taxa. The size distributions of copepods, as evaluated with the 3 methods (manual counts, ZooScan and UVP5), showed consistent ... Article in Journal/Newspaper Arctic Arctic Ocean Beaufort Sea Mackenzie Shelf Zooplankton Copepods HAL Sorbonne Université Arctic Arctic Ocean Biogeosciences 9 4 1301 1320 |