Comparación del rendimiento relativo de captura de merluza, salmonete de fango y salmonete de roca en un arte de arrastre modificado con una extensión con malla T90

Autores/as

DOI:

https://doi.org/10.3989/scimar.04711.04A

Palabras clave:

comparación de capturas, pesquerías de arrastre, red T90, tamaño de malla, mar Mediterráneo

Resumen


Estudiamos el rendimiento relativo de captura de un arte de arrastre con una pieza de extensión con malla girada 90º (T90) en comparación al arte de arrastre estándar usado en una pesquería del Mediterráneo noroccidental que usa extensión de malla romboidal. La comparación se llevó a cabo mediante lances experimentales pareados usando el mismo barco de pesca con lances alternos de la red estándar (control) y la red experimental. Esta comparación de captura se hizo para 3 especies objetivo de la pesca, la merluza, el salmonete de fango y el salmonete de roca. Los resultados muestran que la red experimental redujo de manera significativa las capturas de individuos pequeños de merluza y salmonete de fango (pero no se detectó efecto significativo en el salmonete de roca), contribuyendo a reducir las capturas no deseadas de especies reguladas por la Obligación de Desembarco. Las tasas de captura de merluza, promediadas para todas las tallas, aumentaron en un 50%, mientras que las tasas de captura de los dos salmonetes fueron significativamente inferiores. La red experimental produjo pérdidas adicionales de captura comercial e ingresos, que se estiman en 17 y 18%, respectivamente, lo que puede significar una barrera para la adopción de esta solución sencilla y barata.

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Publicado

2018-12-30

Cómo citar

1.
Sola I, Maynou F. Comparación del rendimiento relativo de captura de merluza, salmonete de fango y salmonete de roca en un arte de arrastre modificado con una extensión con malla T90. Sci. mar. [Internet]. 30 de diciembre de 2018 [citado 1 de mayo de 2025];82(S1):19-26. Disponible en: https://scientiamarina.revistas.csic.es/index.php/scientiamarina/article/view/1756

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