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Investigation of genetic diversity and stock structure of Aristeus alcocki Ramadan, 1938 (Decapoda: Aristeidae) populations in the Indian coast with microsatellite markers

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Relation http://eprints.cmfri.org.in/14128/
https://www.sciencedirect.com/science/article/pii/S0165783620300679?via%3Dihub
https://doi.org/10.1016/j.fishres.2020.105550
 
Title Investigation of genetic diversity and stock structure of Aristeus alcocki
Ramadan, 1938 (Decapoda: Aristeidae) populations in the Indian coast with
microsatellite markers
 
Creator Purushothaman, P
Chakraborty, Rekha D
Maheswarudu, G
Kuberan, G
 
Subject Fish Genetics
 
Description Aristeus alcocki (Arabian red shrimp) forms the commercially important deep-water trawl fishery in the Indian
waters. This species has not been the focus of major genetic studies in spite of our previous report on its populations
suggesting significant differences. Hence, we investigated the genetic diversity and stock structure of
Arabian red shrimp using nine microsatellite markers with 203 individuals collected from five locations along
the Indian coast form the period of 2013–2016. The observed and expected heterozygosity ranged from
0.70–0.98 (Mean: 0.85) and 0.56–0.85 (Mean: 0.69), respectively indicating significant genetic diversity among
the sampled locations. Analysis of molecular variance (AMOVA) showed>99 % of genetic variability within the
individuals. Cluster analysis suggested the absence of genetic distances between the locations grouping all the
individuals into a single cluster. Absence of large-scale genetic differentiation is probably governed by the
mixing of waters along the coastline, habitat, currents and migratory patterns of these species have been discussed.
Future studies on this species should consider it as a single stock for adopting fishery management
strategies in the Indian coast.
 
Publisher Elsevier
 
Date 2020
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/14128/1/Fisheries%20Research_2020_Rekha%20Chakraborty_Investigation%20of%20genetic%20diversity%20and%20stock%20structure%20of%20Aristeus%20alcocki.pdf
Purushothaman, P and Chakraborty, Rekha D and Maheswarudu, G and Kuberan, G (2020) Investigation of genetic diversity and stock structure of Aristeus alcocki Ramadan, 1938 (Decapoda: Aristeidae) populations in the Indian coast with microsatellite markers. Fisheries Research, 227. pp. 1-7.