Regresar

Resumen del producto

Muñoz-Abril, L., M.d.L., Torres, C.A., Valle, F., Rubianes-Landázuri, F., Galván-Magaña, S.W.J., Canty, M.A., Terán, M., Brandt, J.A., Chaves & P.M., Grewe (2022). Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean. PLoS ONE. 17(8): e0272713. DOI: 10.1371/journal.pone.0272713.

Lack of genetic differentiation in yellowfin tuna has conservation implications in the Eastern Pacific Ocean

Laia Muñoz-Abril 1, Maria de Lourdes Torres 2, Carlos A. Valle 1, Francisco Rubianes-Landázuri 1, Felipe Galván-Magaña 3, Steven W. J. Canty 4, Martin A. Terán 1, Margarita Brandt 1, Jaime A. Chaves 5 y Peter M. Grewe 6

1 Colegio de Ciencias Biológicas y Ambientales COCIBA, Universidad San Francisco de Quito USFQ, Diego de Robles y Pampite, Quito, Ecuador
2 Department of Marine Sciences, University of South Alabama, USA Drive North, Mobile, Alabama, United States of America
3 Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas, La Paz, Mexico
4 Smithsonian Marine Station Fort Pierce, Fort Pierce, FL, United States
5 Department of Biology, San Francisco State University, San Francisco, CA, United States
6 CSIRO Oceans & Atmosphere, Castray Esplanade, Hobart, TAS, Australia
Yellowfin tuna, Thunnus albacares, is an important global fishery and of particular importance in the Eastern Pacific Ocean (EPO). According to the 2019 Inter-American Tropical Tuna Commission (IATTC) assessment, yellowfin tuna within the EPO is a single stock, and is being managed as one stock. However, previous studies indicate site fidelity, or limited home ranges, of yellowfin tuna which suggests the potential for multiple yellowfin tuna stocks within the EPO, which was supported by a population genetic study using microsatellites. If numerous stocks are present, management at the wrong spatial scales could cause the loss of minor yellowfin tuna populations in the EPO. In this study we used double digestion RADseq to assess the genetic structure of yellowfin tuna in the EPO. A total of 164 yellowfin tuna from Cabo San Lucas, México, and the Galápagos Islands and Santa Elena, Ecuador, were analysed using 18,011 single nucleotide polymorphisms. Limited genetic differentiation (FST = 0.00058-0.00328) observed among the sampling locations (México, Ecuador, Peru, and within Ecuador) is consistent with presence of a single yellowfin tuna population within the EPO. Our findings are consistent with the IATTC assessment and provide further evidence of the need for transboundary cooperation for the successful management of this important fishery throughout the EPO. © 2022 Muñoz-Abril et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Palabras clave: Tuna; Marine fish; Single nucleotide polymorphisms; Population genetics; fisheries; Heterozygosity; genetics; Principal component analysis

Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx

Regresar