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Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites

The yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), covers majority of the Philippines’ tuna catch, one of the major fisheries commodities in the country. Due to its high economic importance sustainable management of these tunas has become an imperative measure to prevent stock depletion. Curr...

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Autores principales: Aguila, Roselyn D., Perez, Sweedy Kay L., Catacutan, Billy Joel N., Lopez, Grace V., Barut, Noel C., Santos, Mudjekeewis D.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Public Library of Science 2015
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634617/
https://www.ncbi.nlm.nih.gov/pubmed/26394234
http://dx.doi.org/10.1371/journal.pone.0138292
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author Aguila, Roselyn D.
Perez, Sweedy Kay L.
Catacutan, Billy Joel N.
Lopez, Grace V.
Barut, Noel C.
Santos, Mudjekeewis D.
author_facet Aguila, Roselyn D.
Perez, Sweedy Kay L.
Catacutan, Billy Joel N.
Lopez, Grace V.
Barut, Noel C.
Santos, Mudjekeewis D.
author_sort Aguila, Roselyn D.
collection PubMed
description The yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), covers majority of the Philippines’ tuna catch, one of the major fisheries commodities in the country. Due to its high economic importance sustainable management of these tunas has become an imperative measure to prevent stock depletion. Currently, the Philippine yellowfin tuna is believed to be part of a single stock of the greater WCPO though some reports suggest otherwise. This study therefore aims to establish the genetic stock structure of the said species in the Philippines as compared to Bismarck Sea, Papua New Guinea using nine (9) DNA microsatellite markers. DNA microsatellite data revealed significant genetic differentiation between the Philippine and Bismarck Sea, Papua New Guinea yellowfin tuna samples. (FST = 0.034, P = 0.016), which is further supported by multilocus distance matrix testing (PCoA) and model-based clustering (STRUCTURE 2.2).With these findings, this study posits that the yellowfin tuna population in the Philippines is a separate stock from the Bismarck Sea population. These findings add evidence to the alternative hypothesis of having at least 2 subpopulations of yellowfin tuna in the WCPO and calls for additional scientific studies using other parameters to investigate this. Accurate population information is necessary in formulating a more appropriate management strategy for the sustainability of the yellowfin tuna not only in the Philippines but also in the WCPO.
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spelling pubmed-46346172015-11-13 Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites Aguila, Roselyn D. Perez, Sweedy Kay L. Catacutan, Billy Joel N. Lopez, Grace V. Barut, Noel C. Santos, Mudjekeewis D. PLoS One Research Article The yellowfin tuna, Thunnus albacares (Bonnaterre, 1788), covers majority of the Philippines’ tuna catch, one of the major fisheries commodities in the country. Due to its high economic importance sustainable management of these tunas has become an imperative measure to prevent stock depletion. Currently, the Philippine yellowfin tuna is believed to be part of a single stock of the greater WCPO though some reports suggest otherwise. This study therefore aims to establish the genetic stock structure of the said species in the Philippines as compared to Bismarck Sea, Papua New Guinea using nine (9) DNA microsatellite markers. DNA microsatellite data revealed significant genetic differentiation between the Philippine and Bismarck Sea, Papua New Guinea yellowfin tuna samples. (FST = 0.034, P = 0.016), which is further supported by multilocus distance matrix testing (PCoA) and model-based clustering (STRUCTURE 2.2).With these findings, this study posits that the yellowfin tuna population in the Philippines is a separate stock from the Bismarck Sea population. These findings add evidence to the alternative hypothesis of having at least 2 subpopulations of yellowfin tuna in the WCPO and calls for additional scientific studies using other parameters to investigate this. Accurate population information is necessary in formulating a more appropriate management strategy for the sustainability of the yellowfin tuna not only in the Philippines but also in the WCPO. Public Library of Science 2015-09-22 /pmc/articles/PMC4634617/ /pubmed/26394234 http://dx.doi.org/10.1371/journal.pone.0138292 Text en © 2015 Aguila et al http://creativecommons.org/licenses/by/4.0/ 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 properly credited.
spellingShingle Research Article
Aguila, Roselyn D.
Perez, Sweedy Kay L.
Catacutan, Billy Joel N.
Lopez, Grace V.
Barut, Noel C.
Santos, Mudjekeewis D.
Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
title Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
title_full Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
title_fullStr Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
title_full_unstemmed Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
title_short Distinct Yellowfin Tuna (Thunnus albacares) Stocks Detected in Western and Central Pacific Ocean (WCPO) Using DNA Microsatellites
title_sort distinct yellowfin tuna (thunnus albacares) stocks detected in western and central pacific ocean (wcpo) using dna microsatellites
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4634617/
https://www.ncbi.nlm.nih.gov/pubmed/26394234
http://dx.doi.org/10.1371/journal.pone.0138292
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