Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices
© Inter-Research 2015. Interpopulation mixing of migratory species at particular stopover and wintering hotspots increases their vulnerability to anthropogenic impacts. Animal associations with human activities at this time of the annual cycle should, therefore, inform management policies. The Gulf...
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Online Access: | http://hdl.handle.net/10261/122438 https://doi.org/10.3354/meps11282 |
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ftcsic:oai:digital.csic.es:10261/122438 2024-02-11T10:05:39+01:00 Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices Ramírez, Francisco Gutiérrez-Expósito, Carlos Afán, Isabel Giménez, Joan de Stephanis, Renaud Forero, Manuela G. 2015 http://hdl.handle.net/10261/122438 https://doi.org/10.3354/meps11282 unknown Inter Research Postprint Sí doi:10.3354/meps11282 issn: 0171-8630 Marine Ecology - Progress Series 527: 221- 232 (2015) http://hdl.handle.net/10261/122438 open artículo http://purl.org/coar/resource_type/c_6501 2015 ftcsic https://doi.org/10.3354/meps11282 2024-01-16T10:10:43Z © Inter-Research 2015. Interpopulation mixing of migratory species at particular stopover and wintering hotspots increases their vulnerability to anthropogenic impacts. Animal associations with human activities at this time of the annual cycle should, therefore, inform management policies. The Gulf of Cadiz, Spain is a key non-breeding area for the Near-Threatened Audouin's gull Ichthyaetus audouinii and the over-abundant lesser black-backed gull Larus fuscus, both of which heavily depend on human fisheries. Here, we used long-term (1990-2013) data on coastal censuses, along with spatially-explicit information on fish landings (2000-2014) and on-board surveys of fishing vessels (2012-2013), to unravel the association of these gulls with human fisheries and evaluate its role in shaping their distribution at this important non-breeding hotspot. Fishing discards from trawlers were extensively used by lesser black-backed gulls, whereas Audouin's gulls apparently benefited from fish aggregations that occurred where purse seines were retrieved. Fishing influence was identified as an important driver of the non-breeding distribution of these gulls, particularly for the lesser black-backed gull, which congregated near main fishing ports. Within this scenario, we speculate that changes in fishing practices, such as those proposed by the upcoming EU Reform of the Common Fisheries Policy that includes a ban on fishing discards, will almost certainly impact the lesser black-backed gull. In contrast, the impact on the Audouin's gull remains unclear and will likely depend on how the proposed ban is implemented. Peer Reviewed Article in Journal/Newspaper Lesser black-backed gull Digital.CSIC (Spanish National Research Council) Marine Ecology Progress Series 527 221 232 |
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© Inter-Research 2015. Interpopulation mixing of migratory species at particular stopover and wintering hotspots increases their vulnerability to anthropogenic impacts. Animal associations with human activities at this time of the annual cycle should, therefore, inform management policies. The Gulf of Cadiz, Spain is a key non-breeding area for the Near-Threatened Audouin's gull Ichthyaetus audouinii and the over-abundant lesser black-backed gull Larus fuscus, both of which heavily depend on human fisheries. Here, we used long-term (1990-2013) data on coastal censuses, along with spatially-explicit information on fish landings (2000-2014) and on-board surveys of fishing vessels (2012-2013), to unravel the association of these gulls with human fisheries and evaluate its role in shaping their distribution at this important non-breeding hotspot. Fishing discards from trawlers were extensively used by lesser black-backed gulls, whereas Audouin's gulls apparently benefited from fish aggregations that occurred where purse seines were retrieved. Fishing influence was identified as an important driver of the non-breeding distribution of these gulls, particularly for the lesser black-backed gull, which congregated near main fishing ports. Within this scenario, we speculate that changes in fishing practices, such as those proposed by the upcoming EU Reform of the Common Fisheries Policy that includes a ban on fishing discards, will almost certainly impact the lesser black-backed gull. In contrast, the impact on the Audouin's gull remains unclear and will likely depend on how the proposed ban is implemented. Peer Reviewed |
format |
Article in Journal/Newspaper |
author |
Ramírez, Francisco Gutiérrez-Expósito, Carlos Afán, Isabel Giménez, Joan de Stephanis, Renaud Forero, Manuela G. |
spellingShingle |
Ramírez, Francisco Gutiérrez-Expósito, Carlos Afán, Isabel Giménez, Joan de Stephanis, Renaud Forero, Manuela G. Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices |
author_facet |
Ramírez, Francisco Gutiérrez-Expósito, Carlos Afán, Isabel Giménez, Joan de Stephanis, Renaud Forero, Manuela G. |
author_sort |
Ramírez, Francisco |
title |
Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices |
title_short |
Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices |
title_full |
Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices |
title_fullStr |
Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices |
title_full_unstemmed |
Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices |
title_sort |
human influence on gull non-breeding distribution: potential consequences of changes in fishing practices |
publisher |
Inter Research |
publishDate |
2015 |
url |
http://hdl.handle.net/10261/122438 https://doi.org/10.3354/meps11282 |
genre |
Lesser black-backed gull |
genre_facet |
Lesser black-backed gull |
op_relation |
Postprint Sí doi:10.3354/meps11282 issn: 0171-8630 Marine Ecology - Progress Series 527: 221- 232 (2015) http://hdl.handle.net/10261/122438 |
op_rights |
open |
op_doi |
https://doi.org/10.3354/meps11282 |
container_title |
Marine Ecology Progress Series |
container_volume |
527 |
container_start_page |
221 |
op_container_end_page |
232 |
_version_ |
1790602769142382592 |