Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation?
International audience Evidence of the presence of a group of sei whales (Balaenoptera borealis) detected around drifting fish aggregating devices (FADs) was provided by omnidirectional multi-beam sonar during a survey off the Seychelles (Indian Ocean). The short visit by the sei whales produced a s...
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Online Access: | https://hal.univ-brest.fr/hal-00700965 https://doi.org/10.1111/j.1439-0485.2011.00478.x |
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ftunivbrest:oai:HAL:hal-00700965v1 2024-02-11T10:02:19+01:00 Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? Brehmer, Patrice Josse, Erwan Nøttestad, Leif Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Institute of Marine Research Bergen (IMR) University of Bergen (UiB) 2012-06-01 https://hal.univ-brest.fr/hal-00700965 https://doi.org/10.1111/j.1439-0485.2011.00478.x en eng HAL CCSD Wiley info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0485.2011.00478.x hal-00700965 https://hal.univ-brest.fr/hal-00700965 doi:10.1111/j.1439-0485.2011.00478.x IRD: fdi:010055858 ISSN: 0173-9565 EISSN: 1439-0485 Marine Ecology https://hal.univ-brest.fr/hal-00700965 Marine Ecology, 2012, 33 (2), pp.176-182. ⟨10.1111/j.1439-0485.2011.00478.x⟩ Ecological trap fish aggregation Indian Ocean omnidirectional sonar predator-prey interaction sei whales tropical fish [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2012 ftunivbrest https://doi.org/10.1111/j.1439-0485.2011.00478.x 2024-01-23T23:36:32Z International audience Evidence of the presence of a group of sei whales (Balaenoptera borealis) detected around drifting fish aggregating devices (FADs) was provided by omnidirectional multi-beam sonar during a survey off the Seychelles (Indian Ocean). The short visit by the sei whales produced a significant change in the behaviour of the fish assemblage associated with the FAD. There was first a significant increase in fish density when the whales approached the FAD, then a marked decrease after the whales had moved away from the FAD. Furthermore, the fish density was still low, 3 h after the whales had left the FAD. We assume that the presence and behaviour of the sei whales led some of the fish initially associated with the FAD to move away from it. There has been a considerable increase in the use of drifting artificial FADs in the Indian Ocean in recent decades. The frequency of cetacean visits to drifting FADs in the Indian Ocean is unknown, but they may have a major impact on assemblages of pelagic fish species around FADs. The effect of marine mammals on FAD-associated fish could be relevant to the ecological trap theory (FAD acting as a trap for their associated fish) because of their impact on the dynamics of fish aggregation processes, through commensalism and/or predator-prey interactions. Article in Journal/Newspaper Balaenoptera borealis Université de Bretagne Occidentale: HAL Indian Marine Ecology 33 2 176 182 |
institution |
Open Polar |
collection |
Université de Bretagne Occidentale: HAL |
op_collection_id |
ftunivbrest |
language |
English |
topic |
Ecological trap fish aggregation Indian Ocean omnidirectional sonar predator-prey interaction sei whales tropical fish [SDE]Environmental Sciences |
spellingShingle |
Ecological trap fish aggregation Indian Ocean omnidirectional sonar predator-prey interaction sei whales tropical fish [SDE]Environmental Sciences Brehmer, Patrice Josse, Erwan Nøttestad, Leif Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
topic_facet |
Ecological trap fish aggregation Indian Ocean omnidirectional sonar predator-prey interaction sei whales tropical fish [SDE]Environmental Sciences |
description |
International audience Evidence of the presence of a group of sei whales (Balaenoptera borealis) detected around drifting fish aggregating devices (FADs) was provided by omnidirectional multi-beam sonar during a survey off the Seychelles (Indian Ocean). The short visit by the sei whales produced a significant change in the behaviour of the fish assemblage associated with the FAD. There was first a significant increase in fish density when the whales approached the FAD, then a marked decrease after the whales had moved away from the FAD. Furthermore, the fish density was still low, 3 h after the whales had left the FAD. We assume that the presence and behaviour of the sei whales led some of the fish initially associated with the FAD to move away from it. There has been a considerable increase in the use of drifting artificial FADs in the Indian Ocean in recent decades. The frequency of cetacean visits to drifting FADs in the Indian Ocean is unknown, but they may have a major impact on assemblages of pelagic fish species around FADs. The effect of marine mammals on FAD-associated fish could be relevant to the ecological trap theory (FAD acting as a trap for their associated fish) because of their impact on the dynamics of fish aggregation processes, through commensalism and/or predator-prey interactions. |
author2 |
Laboratoire des Sciences de l'Environnement Marin (LEMAR) (LEMAR) Institut de Recherche pour le Développement (IRD)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Université de Brest (UBO)-Institut Universitaire Européen de la Mer (IUEM) Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Brest (UBO)-Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS) Institute of Marine Research Bergen (IMR) University of Bergen (UiB) |
format |
Article in Journal/Newspaper |
author |
Brehmer, Patrice Josse, Erwan Nøttestad, Leif |
author_facet |
Brehmer, Patrice Josse, Erwan Nøttestad, Leif |
author_sort |
Brehmer, Patrice |
title |
Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
title_short |
Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
title_full |
Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
title_fullStr |
Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
title_full_unstemmed |
Evidence that whales (Balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
title_sort |
evidence that whales (balaenoptera borealis) visit drifting fish aggregating devices: do their presence affect the processes underlying fish aggregation? |
publisher |
HAL CCSD |
publishDate |
2012 |
url |
https://hal.univ-brest.fr/hal-00700965 https://doi.org/10.1111/j.1439-0485.2011.00478.x |
geographic |
Indian |
geographic_facet |
Indian |
genre |
Balaenoptera borealis |
genre_facet |
Balaenoptera borealis |
op_source |
ISSN: 0173-9565 EISSN: 1439-0485 Marine Ecology https://hal.univ-brest.fr/hal-00700965 Marine Ecology, 2012, 33 (2), pp.176-182. ⟨10.1111/j.1439-0485.2011.00478.x⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1111/j.1439-0485.2011.00478.x hal-00700965 https://hal.univ-brest.fr/hal-00700965 doi:10.1111/j.1439-0485.2011.00478.x IRD: fdi:010055858 |
op_doi |
https://doi.org/10.1111/j.1439-0485.2011.00478.x |
container_title |
Marine Ecology |
container_volume |
33 |
container_issue |
2 |
container_start_page |
176 |
op_container_end_page |
182 |
_version_ |
1790598245986074624 |