Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau
International audience Abstract The Kerguelen Plateau in the Indian sector of the Southern Ocean is a highly dynamic region for Southern Ocean ecosystems and an important region for the Patagonian toothfish fishery. Fished regions overlap with foraging regions for predators; however, no study has ex...
Published in: | ICES Journal of Marine Science |
---|---|
Main Authors: | , , , , , |
Other Authors: | , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2022
|
Subjects: | |
Online Access: | https://hal.science/hal-03895405 https://doi.org/10.1093/icesjms/fsac056 |
id |
ftmuseumnhn:oai:HAL:hal-03895405v1 |
---|---|
record_format |
openpolar |
spelling |
ftmuseumnhn:oai:HAL:hal-03895405v1 2024-04-28T08:35:24+00:00 Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau Subramaniam, Roshni Corney, Stuart Melbourne-Thomas, Jessica Péron, Clara Ziegler, Philippe Swadling, Kerrie Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) 2022-05-23 https://hal.science/hal-03895405 https://doi.org/10.1093/icesjms/fsac056 en eng HAL CCSD Oxford University Press info:eu-repo/semantics/altIdentifier/doi/10.1093/icesjms/fsac056 hal-03895405 https://hal.science/hal-03895405 doi:10.1093/icesjms/fsac056 ISSN: 1054-3139 EISSN: 1095-9289 ICES Journal of Marine Science https://hal.science/hal-03895405 ICES Journal of Marine Science, 2022, 79 (4), pp.1327-1339. ⟨10.1093/icesjms/fsac056⟩ [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2022 ftmuseumnhn https://doi.org/10.1093/icesjms/fsac056 2024-04-17T23:58:29Z International audience Abstract The Kerguelen Plateau in the Indian sector of the Southern Ocean is a highly dynamic region for Southern Ocean ecosystems and an important region for the Patagonian toothfish fishery. Fished regions overlap with foraging regions for predators; however, no study has explored the spatial impacts of fishing on ecosystem dynamics. We developed two spatially explicit ecosystem models to (i) explore the spatial effects of fishing on the Patagonian toothfish and the ecosystem in scenarios with and without fishing; and (ii) use modelled distributions to compare ecosystem representation in Marine Protected Areas (MPAs) with existing studies. Consistent with other studies, we found decreases in Patagonian toothfish biomass in scenarios with fishing activity. In contrast, we found no spatial fishing impacts on ecosystem interactions. A majority of functional group distributions were positively correlated with phytoplankton and well distributed within no-take areas. This could indicate a high level of representation of species in MPAs. Our study provides valuable insights into spatial ecosystem dynamics on the Kerguelen Plateau; however, our interpretations were limited and more research is needed to disentangle the natural variation from fishing impacts and further explore spatio-temporal changes in phytoplankton on the ecosystem. Article in Journal/Newspaper Patagonian Toothfish Southern Ocean Muséum National d'Histoire Naturelle (MNHM): HAL ICES Journal of Marine Science 79 4 1327 1339 |
institution |
Open Polar |
collection |
Muséum National d'Histoire Naturelle (MNHM): HAL |
op_collection_id |
ftmuseumnhn |
language |
English |
topic |
[SDE]Environmental Sciences |
spellingShingle |
[SDE]Environmental Sciences Subramaniam, Roshni Corney, Stuart Melbourne-Thomas, Jessica Péron, Clara Ziegler, Philippe Swadling, Kerrie Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau |
topic_facet |
[SDE]Environmental Sciences |
description |
International audience Abstract The Kerguelen Plateau in the Indian sector of the Southern Ocean is a highly dynamic region for Southern Ocean ecosystems and an important region for the Patagonian toothfish fishery. Fished regions overlap with foraging regions for predators; however, no study has explored the spatial impacts of fishing on ecosystem dynamics. We developed two spatially explicit ecosystem models to (i) explore the spatial effects of fishing on the Patagonian toothfish and the ecosystem in scenarios with and without fishing; and (ii) use modelled distributions to compare ecosystem representation in Marine Protected Areas (MPAs) with existing studies. Consistent with other studies, we found decreases in Patagonian toothfish biomass in scenarios with fishing activity. In contrast, we found no spatial fishing impacts on ecosystem interactions. A majority of functional group distributions were positively correlated with phytoplankton and well distributed within no-take areas. This could indicate a high level of representation of species in MPAs. Our study provides valuable insights into spatial ecosystem dynamics on the Kerguelen Plateau; however, our interpretations were limited and more research is needed to disentangle the natural variation from fishing impacts and further explore spatio-temporal changes in phytoplankton on the ecosystem. |
author2 |
Biologie des Organismes et Ecosystèmes Aquatiques (BOREA) Université de Caen Normandie (UNICAEN) Normandie Université (NU)-Normandie Université (NU)-Muséum national d'Histoire naturelle (MNHN)-Institut de Recherche pour le Développement (IRD)-Sorbonne Université (SU)-Centre National de la Recherche Scientifique (CNRS)-Université des Antilles (UA) |
format |
Article in Journal/Newspaper |
author |
Subramaniam, Roshni Corney, Stuart Melbourne-Thomas, Jessica Péron, Clara Ziegler, Philippe Swadling, Kerrie |
author_facet |
Subramaniam, Roshni Corney, Stuart Melbourne-Thomas, Jessica Péron, Clara Ziegler, Philippe Swadling, Kerrie |
author_sort |
Subramaniam, Roshni |
title |
Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau |
title_short |
Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau |
title_full |
Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau |
title_fullStr |
Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau |
title_full_unstemmed |
Spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within Marine Protected Areas on the Kerguelen Plateau |
title_sort |
spatially explicit food web modelling to consider fisheries impacts and ecosystem representation within marine protected areas on the kerguelen plateau |
publisher |
HAL CCSD |
publishDate |
2022 |
url |
https://hal.science/hal-03895405 https://doi.org/10.1093/icesjms/fsac056 |
genre |
Patagonian Toothfish Southern Ocean |
genre_facet |
Patagonian Toothfish Southern Ocean |
op_source |
ISSN: 1054-3139 EISSN: 1095-9289 ICES Journal of Marine Science https://hal.science/hal-03895405 ICES Journal of Marine Science, 2022, 79 (4), pp.1327-1339. ⟨10.1093/icesjms/fsac056⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1093/icesjms/fsac056 hal-03895405 https://hal.science/hal-03895405 doi:10.1093/icesjms/fsac056 |
op_doi |
https://doi.org/10.1093/icesjms/fsac056 |
container_title |
ICES Journal of Marine Science |
container_volume |
79 |
container_issue |
4 |
container_start_page |
1327 |
op_container_end_page |
1339 |
_version_ |
1797567508056637440 |