Levels of genetic diversity and taxonomic status of Epinephelus species in United Arab Emirates fish markets.

Autor: Ketchum RN; Biology Program, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates., Dieng MM; Biology Program, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates., Vaughan GO; Biology Program, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates., Burt JA; Biology Program, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates. Electronic address: john.burt@nyu.edu., Idaghdour Y; Biology Program, New York University Abu Dhabi, PO Box 129188, Abu Dhabi, United Arab Emirates. Electronic address: youssef.idaghdour@nyu.edu.
Jazyk: angličtina
Zdroj: Marine pollution bulletin [Mar Pollut Bull] 2016 Apr 30; Vol. 105 (2), pp. 540-5. Date of Electronic Publication: 2015 Dec 03.
DOI: 10.1016/j.marpolbul.2015.11.042
Abstrakt: Understanding the patterns of genetic diversity of fish species is essential for marine conservation and management. This is particularly important in the Arabian Gulf where marine life is subject to extreme environmental conditions that could impact genetic diversity. Here we assess genetic diversity of the most commercially important fish in the United Arab Emirates; groupers (Epinephelus spp.). Sequencing of 973 bp mitochondrial DNA from 140 tissue samples collected in four main fish markets revealed 58 haplotypes clustered within three groups. Data analysis revealed the presence of three distinct Epinephelus species being marketed as one species (hammour): Epinephelus coioides, Epinephelus areolatus and Epinephelus bleekeri. We report species-specific genetic markers and demonstrate that all three species exhibit relatively low levels of genetic variation, reflecting the effect of overfishing and environmental pressures. In light of the genetic evidence presented here, conservation and management of groupers in the UAE warrant the implementation of species-specific measures.
(Copyright © 2015 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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