Bioeconomic analysis of the effects of modifying the trawl extension piece with T90 netting

Iván Sola; Francesc Maynou

doi:10.3989/scimar.04715.06A

Autores/as

Iván Sola Institut de Ciències del Mar, CSIC https://orcid.org/0000-0003-2972-614X
Francesc Maynou Institut de Ciències del Mar, CSIC https://orcid.org/0000-0001-7200-6485

DOI:

https://doi.org/10.3989/scimar.04715.06A

Palabras clave:

prohibición de descartes, pesquería de arrastre, red T90, modelo bioeconómico, pesquerías mediterráneas

Resumen

Se evaluó el efecto de la prohibición de descartes sobre los beneficios económicos de la flota de arrastre del área GA06 (Mediterráneo noroccidental) en el periodo transitorio 2017-2018 durante el que las especies que caracterizan la pesquería, es decir la merluza y el salmonete, deben desembarcarse obligatoriamente. Usamos los resultados de Sola y Maynou (2018) para simular la adopción de un nuevo arte de arrastre que emplea una extensión dotada de una red de malla T90 para reducir las capturas de merluza y salmonete por debajo de la talla legal. Los resultados muestran que es de esperar que el impacto económico de las capturas que deben obligatoriamente desembarcarse para usos comerciales distintos del consumo humano sea bajo, tengan o no posible uso industrial. Al mismo tiempo, la adopción de un diseño de arte de pesca de arrastre más selectivo permitiría aumentar el escape de individuos de talla inferior a la legal y contribuir a la reducción de la mortalidad por pesca de las especies objetivo, y en último término a la reconstrucción de los stocks pesqueros, permitiendo generar mayores ingresos a los operadores pesqueros a medio y largo plazo.

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