Final report of the short-term contract for ICCAT SMYTP for the biological samples collection for growth, maturity and genetics studies – Year #3

This document is the final report of the third year of the short-term contract of the Small Tuna Year Program by ICCAT, with the objectives of: a) conduct additional sampling aiming to fill the specific gaps of the biological samples for estimating the growth and maturity parameters for BON and LTA;...

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Detalles Bibliográficos
Autores: Lucena Frédou, Flávia, Hazin, Fabio, Viñas, Jordi, Ollé, Judith, Hajjej, Ghailen, Macías-López, Ángel David, Saber, Sámar, Ortiz-de-Urbina-Gutiérrez, José María, Pascual-Alayón, Pedro José, Lino, P.G., Muñoz-Lechuga, Rubén, Baibbat, Sidi Ahmed, Ngom-Sow, Fambaye, Constance-Diaha, N'Guessan, Angueko, Davy, Silva, Guelson, Massa-Gallucci, Alexia
Tipo de recurso: artículo
Estado:Versión aceptada para publicación
Fecha de publicación:2021
País:España
Institución:Consejo Superior de Investigaciones Científicas (CSIC)
Repositorio:DIGITAL.CSIC. Repositorio Institucional del CSIC
OAI Identifier:oai:digital.csic.es:10261/326297
Acceso en línea:http://hdl.handle.net/10261/326297
Access Level:acceso abierto
Palabra clave:Small tunas
Centro Oceanográfico de Málaga
Pesquerías
Little tunny
Euthynnus alletteratus
Atlantic bonito
Sarda sarda
Wahoo
Acanthocybium solandri
Growth
Maturity
stock structure
Genetics
fish
genetics
growth
samples
classification
Descripción
Sumario:This document is the final report of the third year of the short-term contract of the Small Tuna Year Program by ICCAT, with the objectives of: a) conduct additional sampling aiming to fill the specific gaps of the biological samples for estimating the growth and maturity parameters for BON and LTA; b) estimate the referred parameters for both species, and preliminary provide preliminary results for WAH; and, c) refine the sampling and stock structure analysis for BON, LTA and WAH. A total of 374 individuals were collected: 145 of BON, 139 of LTA and 90 WAH. Initial target size class was accomplished only for BON in the Mediterranean. Small individuals are need in the Northeast and no samples were obtained in Southeast Atlantic. For LTA, total target sizes were not completely achieved in any case. However, preliminary results were obtained for growth and reproductive parameters. For BON, with samples arrived from Morocco, no genetic differentiation was detected, and the hypothesis provided in the previous contract is maintained. The population genetic analysis of WAH presents a scenario of homogeneous distribution.

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