Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull

Fishing activity generates high amounts of fishing discards, a predictable anthropogenic food subsidies used by seabirds. Although the use of discards by these predators has been well studied, there is a lack of knowledge about the ontogenetic differences in their use. We contributed to filling this...

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Detalhes bibliográficos
Autores: Gimeno, M, Garcia, JA, Afan, I, Aymi, R, Montalvo, T, Navarro, J
Tipo de documento: artigo
Estado:Versão publicada
Data de publicação:2023
País:España
Recursos:Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)
Repositório:r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
OAI Identifier:oai:iibsantpau.fundanetsuite.com:p13942
Acesso em linha:https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=13942
Access Level:Acceso aberto
Palavra-chave:discards
fisheries interactions
foraging ecology
ontogenetic differences
opportunistic predators
urban marine ecology
yellow-legged gull
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spelling Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gullGimeno, MGarcia, JAAfan, IAymi, RMontalvo, TNavarro, Jdiscardsfisheries interactionsforaging ecologyontogenetic differencesopportunistic predatorsurban marine ecologyyellow-legged gullFishing activity generates high amounts of fishing discards, a predictable anthropogenic food subsidies used by seabirds. Although the use of discards by these predators has been well studied, there is a lack of knowledge about the ontogenetic differences in their use. We contributed to filling this gap for the yellow-legged gull (Larus michahellis), an opportunistic predator that extensively exploits anthropogenic food subsides. We investigated its foraging behaviour during the early breeding season deploying GPS devices on adults, immatures, and juveniles from the urban population of Barcelona (northwestern Mediterranean Sea) and examining the effect of fishing vessels on their spatial movements using a Vessel Monitoring System. The results revealed age-related differences in distribution and foraging behaviour at sea and an interaction with fishing vessels in this seabird. Age-related differences in behaviour were explained by the reproductive constraints of adults and the ontogenetic differences associated with lower foraging ability in immature and juvenile individuals. We did not find apparent preferences for a specific type of fishing vessel between ages. These results suggest that the reform of the Common Fisheries Policy might affect the entire population of this species, that could lead to an increase in the use of urban environments, increasing the conflicts with human activities.OXFORD UNIV PRESS2023info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttps://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=13942ICES JOURNAL OF MARINE SCIENCEISSN: 10543139ISSNe: 10959289reponame:r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pauinstname:Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)Inglésinfo:eu-repo/semantics/openAccessoai:iibsantpau.fundanetsuite.com:p139422026-06-14T12:41:47Z
dc.title.none.fl_str_mv Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
title Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
spellingShingle Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
Gimeno, M
discards
fisheries interactions
foraging ecology
ontogenetic differences
opportunistic predators
urban marine ecology
yellow-legged gull
title_short Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
title_full Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
title_fullStr Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
title_full_unstemmed Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
title_sort Age-related differences in foraging behaviour at sea and interactions with fishing vessels in an opportunistic urban gull
dc.creator.none.fl_str_mv Gimeno, M
Garcia, JA
Afan, I
Aymi, R
Montalvo, T
Navarro, J
author Gimeno, M
author_facet Gimeno, M
Garcia, JA
Afan, I
Aymi, R
Montalvo, T
Navarro, J
author_role author
author2 Garcia, JA
Afan, I
Aymi, R
Montalvo, T
Navarro, J
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv discards
fisheries interactions
foraging ecology
ontogenetic differences
opportunistic predators
urban marine ecology
yellow-legged gull
topic discards
fisheries interactions
foraging ecology
ontogenetic differences
opportunistic predators
urban marine ecology
yellow-legged gull
description Fishing activity generates high amounts of fishing discards, a predictable anthropogenic food subsidies used by seabirds. Although the use of discards by these predators has been well studied, there is a lack of knowledge about the ontogenetic differences in their use. We contributed to filling this gap for the yellow-legged gull (Larus michahellis), an opportunistic predator that extensively exploits anthropogenic food subsides. We investigated its foraging behaviour during the early breeding season deploying GPS devices on adults, immatures, and juveniles from the urban population of Barcelona (northwestern Mediterranean Sea) and examining the effect of fishing vessels on their spatial movements using a Vessel Monitoring System. The results revealed age-related differences in distribution and foraging behaviour at sea and an interaction with fishing vessels in this seabird. Age-related differences in behaviour were explained by the reproductive constraints of adults and the ontogenetic differences associated with lower foraging ability in immature and juvenile individuals. We did not find apparent preferences for a specific type of fishing vessel between ages. These results suggest that the reform of the Common Fisheries Policy might affect the entire population of this species, that could lead to an increase in the use of urban environments, increasing the conflicts with human activities.
publishDate 2023
dc.date.none.fl_str_mv 2023
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=13942
url https://iibsantpau.fundanetsuite.com/Publicaciones/ProdCientif/PublicacionFrw.aspx?id=13942
dc.language.none.fl_str_mv Inglés
language_invalid_str_mv Inglés
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.publisher.none.fl_str_mv OXFORD UNIV PRESS
publisher.none.fl_str_mv OXFORD UNIV PRESS
dc.source.none.fl_str_mv ICES JOURNAL OF MARINE SCIENCE
ISSN: 10543139
ISSNe: 10959289
reponame:r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
instname:Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)
instname_str Institut d’Investigació Biomèdica Sant Pau (IIB Sant Pau)
reponame_str r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
collection r-IIB SANT PAU. Repositorio Institucional de Producción Científica del Instituto de Investigación Biomédica Sant Pau
repository.name.fl_str_mv
repository.mail.fl_str_mv
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score 15.812429

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