Competition for food between the Mediterranean shag, the great cormorant and artisanal fisheries: a case study

Isotopic signatures revealed high mobility patterns for cormorants, illustrating differences between roosting and feeding areas (spatially well separated). Cormorants roosting in open sea move to inland freshwater bodies, their trophic niche overlapping that of individuals settled there. Similarly, individuals settled around transitional waters (coastal lagoon), seem to divide the predation pressure between different food sources along the marine-continental gradient. Recently in Spain, the Great Cormorant has been devoid of legal protection due to its supposed impact on fisheries. Our methods provide a useful and non-invasive tool that can be used as a first step for assessing such interaction. On the basis of its dispersed feeding distribution and expected predation pressure the cormorant does not seem to represent a serious threat to recreational or commercial fisheries which would justify downgrading its protection.

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Aguado-Gimenez F. Eguia-Martinez S. Torres-Campos I. Merono-Garcia S. y Martinez-Rodenas J. Competition for food between the Mediterranean shag the great cormorant and artisanal fisheries: a case study. CSIC, 2017. https://doi.org/10.3989/scimar.04680.04B

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Tipo de recurso Artículo
Fecha de creación 05-11-2024
Fecha de última modificación 19-01-2025
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Identificador de los metadatos 280b473c-0a0b-5f27-85ed-b97e05f10cfd
Idioma de los metadatos Español
Temáticas (NTI-RISP)
Categoría del conjunto de alto valor (HVD) Observación de la Tierra y medio ambiente
Categoría temática ISO 19115 biota
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Nombre del autor Aguado-Gimenez, F., Eguia-Martinez, S., Torres-Campos, I., Merono-Garcia, S. y Martinez-Rodenas, J.
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Identificador alternativo DOI: 10.3989/scimar.04680.04B
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Email del autor felipe.aguado@carm.es
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