Abundancia y distribución de los gurnardos en el norte del Mediterráneo

Autores/as

DOI:

https://doi.org/10.3989/scimar.04856.30A

Palabras clave:

Triglidae, mar Mediterráneo, captura accesoria de pesca de arrastre, MEDITS, presión de pesca

Resumen


En este estudio hemos investigado la distribución espacio-temporal de los gurnardos (8 especies de Triglidae y 1 especie de Peristediidae) en el norte del Mediterráneo usando 22 años de datos de la campaña de pesca de arrastre ME DITS (1994-2015). Los gurnardos mostraron diferencias significativas en la abundancia, dominancia y composición entre las distintas sub-areas geográficas (GSAs) y las ecoregiones, encontrándose las mayores biomasas relativas (BIy) en Malta, el este de Córcega, las Islas Baleares y el oeste del mar Jónico. Por otro lado, los menores valores de BIy fueron observados en las áreas más explotadas del oeste del Mediterráneo y del Mar Adriático, donde también se observó el mayor número de especies con una tendencia lineal negativa en relación a BIy. La tendencia temporal en la abundancia de especies evidenció una disminución general en las especies costeras (C. lucerna, C. lastoviza, C. obscurus) respecto a las especies que habitan la profunda plataforma y pendiente continentales (T. lyra, P. cataphractum). Los resultados proporcionan por primera vez una visión general de las tendencias espacio-temporales en la abundancia de los gurnardos en la amplia escala espacial del norte del Mediterráneo, sugiriendo también la posibilidad de usar estas especies como indicadores para monitorear el impacto de la presión de pesca sobre los ensamblajes de peces demersales.

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Publicado

2019-12-30

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1.
Colloca F, Milisenda G, Capezzuto F, Cau A, Garofalo G, Jadaud A, Kiparissis S, Micallef R, Montanini S, Thasitis I, Vallisneri M, Voliani A, Vrgoc N, Zupa W, Ordines F. Abundancia y distribución de los gurnardos en el norte del Mediterráneo. Sci. mar. [Internet]. 30 de diciembre de 2019 [citado 12 de mayo de 2024];83(S1):101-16. Disponible en: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1798

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