English   español  
Please use this identifier to cite or link to this item: http://hdl.handle.net/10261/122438
logo share SHARE logo core CORE   Add this article to your Mendeley library MendeleyBASE

Visualizar otros formatos: MARC | Dublin Core | RDF | ORE | MODS | METS | DIDL
Exportar a otros formatos:


Human influence on gull non-breeding distribution: Potential consequences of changes in fishing practices

AuthorsRamírez, Francisco ; Gutiérrez-Expósito, Carlos; Afán, Isabel ; Giménez, Joan ; de Stephanis, Renaud ; Forero, Manuela G.
Issue Date2015
PublisherInter Research
CitationMarine Ecology - Progress Series 527: 221- 232 (2015)
Abstract© 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.
Identifiersdoi: 10.3354/meps11282
issn: 0171-8630
Appears in Collections:(EBD) Artículos
Files in This Item:
File Description SizeFormat 
Ramirez_MEPS_2014.pdf1,01 MBAdobe PDFThumbnail
Show full item record
Review this work

Related articles:

WARNING: Items in Digital.CSIC are protected by copyright, with all rights reserved, unless otherwise indicated.