Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean
International audience There is increasing attention to the use of Antarctic toothfish (Dissostichus mawsoni) and Patagonian toothfish (Dissostichus eleginoides). Understanding the responses of toothfish and other species to fishing activities favors the sustainable use of natural resources. We deve...
Published in: | Regional Studies in Marine Science |
---|---|
Main Authors: | , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2023
|
Subjects: | |
Online Access: | https://hal.umontpellier.fr/hal-04262722 https://doi.org/10.1016/j.rsma.2023.103227 |
id |
ftunimontpellier:oai:HAL:hal-04262722v1 |
---|---|
record_format |
openpolar |
spelling |
ftunimontpellier:oai:HAL:hal-04262722v1 2024-04-21T07:52:03+00:00 Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean Xing, Lei Tang, Jianye Tian, Siquan Barrier, Nicolas Shanghai Ocean University MARine Biodiversity Exploitation and Conservation - MARBEC (UMR MARBEC ) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) 2023 https://hal.umontpellier.fr/hal-04262722 https://doi.org/10.1016/j.rsma.2023.103227 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.rsma.2023.103227 hal-04262722 https://hal.umontpellier.fr/hal-04262722 doi:10.1016/j.rsma.2023.103227 ISSN: 2352-4855 Regional Studies in Marine Science https://hal.umontpellier.fr/hal-04262722 Regional Studies in Marine Science, 2023, 68, pp.103227. ⟨10.1016/j.rsma.2023.103227⟩ Cooperation Sea Ecosystem impacts OSMOSE-CooperationSea model Toothfish fishery [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology info:eu-repo/semantics/article Journal articles 2023 ftunimontpellier https://doi.org/10.1016/j.rsma.2023.103227 2024-03-27T16:02:32Z International audience There is increasing attention to the use of Antarctic toothfish (Dissostichus mawsoni) and Patagonian toothfish (Dissostichus eleginoides). Understanding the responses of toothfish and other species to fishing activities favors the sustainable use of natural resources. We developed an end-to-end model OSMOSE-CooperationSea to simulate the food web dynamics in the Cooperation Sea and evaluate the impact of toothfish fishery. Fishes and cephalopods played important roles in the energy pathways from krill species and other zooplankton species to toothfish and Weddell seal (Leptonychotes weddellii) whose trophic levels were higher than 5.0. Adélie penguin (Pygoscelis adéliae), Crabeater seal (Lobodon carcinophaga), and Baleen whales were strongly krill-reliant. The spawning stock of toothfish decreased more quickly than the recruitments with increasing fishing pressure. Fishing impacts on the recruitments of toothfish were hysteretic due to the fishing selectivity. The model considered an ontogenetic diet shift of toothfish that mesopelagic fish was influential to toothfish juveniles. The overexploitation of toothfish stock might result in a trophic cascade that mesopelagic fish biomass increased and krill biomass declined. Adélie penguin, Crabeater seal, and Baleen whales preyed on more small fishes in response to the decline of krill biomass. Considering the impacts of changes in Antarctic krill availability, the biomass of Adélie penguin, Crabeater seal, and Baleen whales declined with a heavy toothfish fishery. The study highlights the importance of precautionary and ecosystem-based management to toothfish fishery. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Antarctic Toothfish baleen whales Cooperation Sea Crabeater Seal Patagonian Toothfish Southern Ocean Weddell Seal Université de Montpellier: HAL Regional Studies in Marine Science 68 103227 |
institution |
Open Polar |
collection |
Université de Montpellier: HAL |
op_collection_id |
ftunimontpellier |
language |
English |
topic |
Cooperation Sea Ecosystem impacts OSMOSE-CooperationSea model Toothfish fishery [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
spellingShingle |
Cooperation Sea Ecosystem impacts OSMOSE-CooperationSea model Toothfish fishery [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology Xing, Lei Tang, Jianye Tian, Siquan Barrier, Nicolas Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean |
topic_facet |
Cooperation Sea Ecosystem impacts OSMOSE-CooperationSea model Toothfish fishery [SDE.MCG]Environmental Sciences/Global Changes [SDE.BE]Environmental Sciences/Biodiversity and Ecology |
description |
International audience There is increasing attention to the use of Antarctic toothfish (Dissostichus mawsoni) and Patagonian toothfish (Dissostichus eleginoides). Understanding the responses of toothfish and other species to fishing activities favors the sustainable use of natural resources. We developed an end-to-end model OSMOSE-CooperationSea to simulate the food web dynamics in the Cooperation Sea and evaluate the impact of toothfish fishery. Fishes and cephalopods played important roles in the energy pathways from krill species and other zooplankton species to toothfish and Weddell seal (Leptonychotes weddellii) whose trophic levels were higher than 5.0. Adélie penguin (Pygoscelis adéliae), Crabeater seal (Lobodon carcinophaga), and Baleen whales were strongly krill-reliant. The spawning stock of toothfish decreased more quickly than the recruitments with increasing fishing pressure. Fishing impacts on the recruitments of toothfish were hysteretic due to the fishing selectivity. The model considered an ontogenetic diet shift of toothfish that mesopelagic fish was influential to toothfish juveniles. The overexploitation of toothfish stock might result in a trophic cascade that mesopelagic fish biomass increased and krill biomass declined. Adélie penguin, Crabeater seal, and Baleen whales preyed on more small fishes in response to the decline of krill biomass. Considering the impacts of changes in Antarctic krill availability, the biomass of Adélie penguin, Crabeater seal, and Baleen whales declined with a heavy toothfish fishery. The study highlights the importance of precautionary and ecosystem-based management to toothfish fishery. |
author2 |
Shanghai Ocean University MARine Biodiversity Exploitation and Conservation - MARBEC (UMR MARBEC ) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM) |
format |
Article in Journal/Newspaper |
author |
Xing, Lei Tang, Jianye Tian, Siquan Barrier, Nicolas |
author_facet |
Xing, Lei Tang, Jianye Tian, Siquan Barrier, Nicolas |
author_sort |
Xing, Lei |
title |
Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean |
title_short |
Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean |
title_full |
Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean |
title_fullStr |
Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean |
title_full_unstemmed |
Simulating impacts of fishing toothfish on the pelagic community in the Cooperation Sea, Southern Ocean |
title_sort |
simulating impacts of fishing toothfish on the pelagic community in the cooperation sea, southern ocean |
publisher |
HAL CCSD |
publishDate |
2023 |
url |
https://hal.umontpellier.fr/hal-04262722 https://doi.org/10.1016/j.rsma.2023.103227 |
genre |
Antarc* Antarctic Antarctic Krill Antarctic Toothfish baleen whales Cooperation Sea Crabeater Seal Patagonian Toothfish Southern Ocean Weddell Seal |
genre_facet |
Antarc* Antarctic Antarctic Krill Antarctic Toothfish baleen whales Cooperation Sea Crabeater Seal Patagonian Toothfish Southern Ocean Weddell Seal |
op_source |
ISSN: 2352-4855 Regional Studies in Marine Science https://hal.umontpellier.fr/hal-04262722 Regional Studies in Marine Science, 2023, 68, pp.103227. ⟨10.1016/j.rsma.2023.103227⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.rsma.2023.103227 hal-04262722 https://hal.umontpellier.fr/hal-04262722 doi:10.1016/j.rsma.2023.103227 |
op_doi |
https://doi.org/10.1016/j.rsma.2023.103227 |
container_title |
Regional Studies in Marine Science |
container_volume |
68 |
container_start_page |
103227 |
_version_ |
1796935313610768384 |