RT Journal Article
T1 Economic Improvement of Artisanal Fishing by Studying the Survival of Discarded Plectorhinchus mediterraneus
A1 Ruiz-Jarabo De La Rocha, Ignacio
A1 Partida, Blanca
A1 Page, María
A1 Madera Sánchez, Diego
A1 Saiz Aparicio, Nuria
A1 Alonso-Gómez, Aitana
A1 Herrera Castillo, Lisbeth Carolina
A1 Isorna Alonso, Esther
A1 Alonso Gómez, Ángel Luis
A1 Valenciano González, Ana Isabel
A1 Pedro Ormeño, Nuria De
A1 Saez, Jorge
A1 Delgado Saavedra, María Jesús
AB Europe calls for the end to fisheries discards, which means bringing all caught fish (subject to minimum sizes or quotas) to land. This decision is beneficial to the ecosystem, since it forces the selectivity of the fishing gears to improve. However, artisanal fishermen find themselves in a vulnerable situation where their subsistence depends on catches with small profit margins. An exemption to this landing obligation exists, as it is also ruled that those animals whose survival is scientifically guaranteed may be returned to the sea. Here we study the survival of Plectorhinchus mediterraneus captured by hookline and gillnet, as well as their physiological recovery. Survival exceeds 93% in both cases. The physiological assessment of primary (cortisol) and secondary (energy mobilization, acid-base and hydromineral balance, and immune system) stress responses indicates that surviving animals are able to recover after fishing. Thus, we propose the optimal size of capture of this species to achieve greater economic benefit. For this, we rely on the prices according to size in recent years, as well as on the growth curves of the species. In this way, by releasing fish of less than 1 kg, the current benefits could be multiplied between 2.3 and 9.6 times. This pilot study lays the groundwork for regulating artisanal fisheries through scientific data related to survival of discards along with information on the sale prices.
PB MDPI AG
SN 2076-2615
YR 2022
FD 2022
LK https://hdl.handle.net/20.500.14352/108329
UL https://hdl.handle.net/20.500.14352/108329
LA eng
NO Ruiz-Jarabo, Ignacio, et al. «Economic Improvement of Artisanal Fishing by Studying the Survival of Discarded Plectorhinchus Mediterraneus». Animals, vol. 12, n.o 23, diciembre de 2022, p. 3423. DOI.org (Crossref), https://doi.org/10.3390/ani12233423.
NO Ministerio para la Transición Ecológica y el Reto Demográfico (España)
NO Fundación Biodiversidad
NO European Commission
DS Docta Complutense
RD 9 abr 2025