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Morphological Characteristics and Genetic Diversity of Fish Moolgarda cunnesius (Valenciennes, 1836) in Tam Giang Lagoon, Vietnam

Morphological Characteristics and Genetic Diversity of Fish Moolgarda cunnesius (Valenciennes, 1836) in Tam Giang Lagoon, Vietnam

Ty Nguyen, Giang Thi Huong Phung, Lan Le Thuy Hoang and Giang Van Tran*

Department of Biology, Hue University of Education, Hue University, 49000, Vietnam.

 
Corresponding author: Giang Van Tran
tranvangiang@dhsphue.edu.vn, tvgiang@hueuni.com

ABSTRACT

Moolgarda cunnesius, belongs to the Mugilidae family, is an important fish species in view of its immense contribution to the need of this country in terms of nutrition, economic growth and development. The results of morphometric and genetic analysis of M. cunnesius in this study contributed the documents for identification and the genetic diversity, which are the basis for further research about M. cunnesius in breeding, species conservation and management at the Tam Giang Cau Hai Wetland Reserve. Research results showed that this species distributed in the North has a size ranging from 101.7 to 160.7 mm, with an average of 137 mm, corresponding to a weight of 10.6 - 35.6 g, with an average of 25.2 g, the fish distributed in the South has a size ranging from 112.4 - 172.7 mm with an average of 144 mm, corresponding to a weight of 10.6 - 35.6 g, an average of 28.3 g. CO1 gene DNA barcoding was used to study the genetic diversity of M.cunnesius in two regions of the North and the South of Tam Giang lagoon. Amplified and sequenced 10 samples of CO1 gene of M. cunnesius sample in Tam Giang lagoon were recorded size of 650 bp. The average ratio of four types of nucleotides is A: 23.38%; T: 32.62%; G:18.15%; C: 25.85%. The rate of difference in CO1 sequences of the 2 samples is low compared to previous studies. The similarity coefficient of M. cunnesius in the two areas of Tam Giang lagoon is very high (0.9953). 
 
Novelty Statement | The paper presented detailed morphological features and genetic diversity of Moolgarda cunnesius (Valenciennes, 1836) in Tam Giang Lagoon, Vietnam, which is the first study in this area to serve as a scientific basis for breeding and farming and conservation of this species in the future.

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Punjab University Journal of Zoology

December

Vol. 37, Iss. 2, pp. 93-182

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