Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX
Mesopelagic sound scattering layers (SSL) are ubiquitous in all oceans. Pelagic organisms within the SSL play important roles as prey for higher trophic levels and in climate regulation through the biological carbon pump. Yet, the biomass and species composition of SSL in the Arctic Ocean remain poo...
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ftfrontimediafig:oai:figshare.com:article/8864948 2023-05-15T14:30:26+02:00 Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX Maxime Geoffroy Malin Daase Marine Cusa Gérald Darnis Martin Graeve Néstor Santana Hernández Jørgen Berge Paul E. Renaud Finlo Cottier Stig Falk-Petersen 2019-07-12T15:24:10Z https://doi.org/10.3389/fmars.2019.00364.s001 https://figshare.com/articles/Table_1_Mesopelagic_Sound_Scattering_Layers_of_the_High_Arctic_Seasonal_Variations_in_Biomass_Species_Assemblage_and_Trophic_Relationships_DOCX/8864948 unknown doi:10.3389/fmars.2019.00364.s001 https://figshare.com/articles/Table_1_Mesopelagic_Sound_Scattering_Layers_of_the_High_Arctic_Seasonal_Variations_in_Biomass_Species_Assemblage_and_Trophic_Relationships_DOCX/8864948 CC BY 4.0 CC-BY Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mesopelagic fish and zooplankton Arctic and boreal ecosystems seasonality fatty acid trophic markers Sebastes Barents Sea Boreogadus saida Svalbard Dataset 2019 ftfrontimediafig https://doi.org/10.3389/fmars.2019.00364.s001 2019-07-17T23:03:44Z Mesopelagic sound scattering layers (SSL) are ubiquitous in all oceans. Pelagic organisms within the SSL play important roles as prey for higher trophic levels and in climate regulation through the biological carbon pump. Yet, the biomass and species composition of SSL in the Arctic Ocean remain poorly documented, particularly in winter. A multifrequency echosounder detected a SSL north of Svalbard, from 79.8 to 81.4°N, in January 2016, August 2016, and January 2017. Midwater trawl sampling confirmed that the SSL comprised zooplankton and pelagic fish of boreal and Arctic origins. Arctic cod dominated the fish assemblage in August and juvenile beaked redfish in January. The macrozooplankton community mainly comprised the medusa Cyanea capillata, the amphipod Themisto libellula, and the euphausiids Meganyctiphanes norvegica in August and Thysanoessa inermis in January. The SSL was located in the Atlantic Water mass, between 200–700 m in August and between 50–500 m in January. In January, the SSL was shallower and weaker above the deeper basin, where less Atlantic Water penetrated. The energy content available in the form of lipids within the SSL was significantly higher in summer than winter. The biomass within the SSL was >12-fold higher in summer, and the diversity of fish was slightly higher than in winter (12 vs. 9 species). We suggest that these differences are mainly related to life history and ontogenetic changes resulting in a descent toward the seafloor, outside the mesopelagic layer, in winter. In addition, some fish species of boreal origin, such as the spotted barracudina, did not seem to survive the polar night when advected from the Atlantic into the Arctic. Others, mainly juvenile beaked redfish, were abundant in both summer and winter, implying that the species can survive the polar night and possibly extend its range into the high Arctic. Fatty-acid trophic markers revealed that Arctic cod mainly fed on calanoid copepods while juvenile beaked redfish targeted krill (Thysanoessa spp.). The ... Dataset Arctic cod Arctic Arctic Ocean Barents Sea Boreogadus saida Meganyctiphanes norvegica polar night Svalbard Themisto Themisto libellula Zooplankton Copepods Thysanoessa inermis Frontiers: Figshare Arctic Arctic Ocean Barents Sea Medusa ENVELOPE(157.417,157.417,-79.633,-79.633) Svalbard |
institution |
Open Polar |
collection |
Frontiers: Figshare |
op_collection_id |
ftfrontimediafig |
language |
unknown |
topic |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mesopelagic fish and zooplankton Arctic and boreal ecosystems seasonality fatty acid trophic markers Sebastes Barents Sea Boreogadus saida Svalbard |
spellingShingle |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mesopelagic fish and zooplankton Arctic and boreal ecosystems seasonality fatty acid trophic markers Sebastes Barents Sea Boreogadus saida Svalbard Maxime Geoffroy Malin Daase Marine Cusa Gérald Darnis Martin Graeve Néstor Santana Hernández Jørgen Berge Paul E. Renaud Finlo Cottier Stig Falk-Petersen Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX |
topic_facet |
Oceanography Marine Biology Marine Geoscience Biological Oceanography Chemical Oceanography Physical Oceanography Marine Engineering mesopelagic fish and zooplankton Arctic and boreal ecosystems seasonality fatty acid trophic markers Sebastes Barents Sea Boreogadus saida Svalbard |
description |
Mesopelagic sound scattering layers (SSL) are ubiquitous in all oceans. Pelagic organisms within the SSL play important roles as prey for higher trophic levels and in climate regulation through the biological carbon pump. Yet, the biomass and species composition of SSL in the Arctic Ocean remain poorly documented, particularly in winter. A multifrequency echosounder detected a SSL north of Svalbard, from 79.8 to 81.4°N, in January 2016, August 2016, and January 2017. Midwater trawl sampling confirmed that the SSL comprised zooplankton and pelagic fish of boreal and Arctic origins. Arctic cod dominated the fish assemblage in August and juvenile beaked redfish in January. The macrozooplankton community mainly comprised the medusa Cyanea capillata, the amphipod Themisto libellula, and the euphausiids Meganyctiphanes norvegica in August and Thysanoessa inermis in January. The SSL was located in the Atlantic Water mass, between 200–700 m in August and between 50–500 m in January. In January, the SSL was shallower and weaker above the deeper basin, where less Atlantic Water penetrated. The energy content available in the form of lipids within the SSL was significantly higher in summer than winter. The biomass within the SSL was >12-fold higher in summer, and the diversity of fish was slightly higher than in winter (12 vs. 9 species). We suggest that these differences are mainly related to life history and ontogenetic changes resulting in a descent toward the seafloor, outside the mesopelagic layer, in winter. In addition, some fish species of boreal origin, such as the spotted barracudina, did not seem to survive the polar night when advected from the Atlantic into the Arctic. Others, mainly juvenile beaked redfish, were abundant in both summer and winter, implying that the species can survive the polar night and possibly extend its range into the high Arctic. Fatty-acid trophic markers revealed that Arctic cod mainly fed on calanoid copepods while juvenile beaked redfish targeted krill (Thysanoessa spp.). The ... |
format |
Dataset |
author |
Maxime Geoffroy Malin Daase Marine Cusa Gérald Darnis Martin Graeve Néstor Santana Hernández Jørgen Berge Paul E. Renaud Finlo Cottier Stig Falk-Petersen |
author_facet |
Maxime Geoffroy Malin Daase Marine Cusa Gérald Darnis Martin Graeve Néstor Santana Hernández Jørgen Berge Paul E. Renaud Finlo Cottier Stig Falk-Petersen |
author_sort |
Maxime Geoffroy |
title |
Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX |
title_short |
Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX |
title_full |
Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX |
title_fullStr |
Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX |
title_full_unstemmed |
Table_1_Mesopelagic Sound Scattering Layers of the High Arctic: Seasonal Variations in Biomass, Species Assemblage, and Trophic Relationships.DOCX |
title_sort |
table_1_mesopelagic sound scattering layers of the high arctic: seasonal variations in biomass, species assemblage, and trophic relationships.docx |
publishDate |
2019 |
url |
https://doi.org/10.3389/fmars.2019.00364.s001 https://figshare.com/articles/Table_1_Mesopelagic_Sound_Scattering_Layers_of_the_High_Arctic_Seasonal_Variations_in_Biomass_Species_Assemblage_and_Trophic_Relationships_DOCX/8864948 |
long_lat |
ENVELOPE(157.417,157.417,-79.633,-79.633) |
geographic |
Arctic Arctic Ocean Barents Sea Medusa Svalbard |
geographic_facet |
Arctic Arctic Ocean Barents Sea Medusa Svalbard |
genre |
Arctic cod Arctic Arctic Ocean Barents Sea Boreogadus saida Meganyctiphanes norvegica polar night Svalbard Themisto Themisto libellula Zooplankton Copepods Thysanoessa inermis |
genre_facet |
Arctic cod Arctic Arctic Ocean Barents Sea Boreogadus saida Meganyctiphanes norvegica polar night Svalbard Themisto Themisto libellula Zooplankton Copepods Thysanoessa inermis |
op_relation |
doi:10.3389/fmars.2019.00364.s001 https://figshare.com/articles/Table_1_Mesopelagic_Sound_Scattering_Layers_of_the_High_Arctic_Seasonal_Variations_in_Biomass_Species_Assemblage_and_Trophic_Relationships_DOCX/8864948 |
op_rights |
CC BY 4.0 |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.3389/fmars.2019.00364.s001 |
_version_ |
1766304283348697088 |