Phylogeography of the Japanese scad, Decapterus maruadsi (Teleostei; Carangidae) across the Central Indo-West Pacific: evidence of strong regional structure and cryptic diversity
- 3 August 2020
- journal article
- research article
- Published by Taylor & Francis Ltd in Mitochondrial DNA Part A
- Vol. 31 (7), 298-310
- https://doi.org/10.1080/24701394.2020.1799996
Abstract
The Japanese scad Decapterus maruadsi (Carangidae) is an economically important marine species in Asia but its exploitation shows signs of overfishing. To document its stock structure, a population genetic and phylogeographic study of several populations of this species from the central part of the Indo-West Pacific region was conducted using the mitochondrial cytochrome b gene. Genetic homogeneity within the Sundaland region’s population, including Rosario (the Philippines) and Ranong (Andaman Sea) populations was revealed with low nucleotide diversity (π = 0.001–0.003) but high haplotype diversity (h = 0.503–0.822). In contrast, a clear genetic structure was observed between this group and the northern Vietnam populations as revealed by F ST, AMOVA and SAMOVA, while the central Vietnam population of Khanh Hoa is an admixed group between the two differentiated regional populations. The neutrality and mismatch distribution analyses supported a demographic expansion of D. maruadsi in between last Pleistocene to early Holocene period which influenced present day distribution pattern. Contemporary factors such as oceanic currents and different life history traits are also believed to play significant roles in the observed population structure and biogeographical pattern. Based on these results, recommendations on how stocks of the Japanese scad should be managed are offered.Keywords
Funding Information
- Japanese Trust Fund II Program, Southeast Asia Fisheries Development Center
This publication has 66 references indexed in Scilit:
- DAMBE5: A Comprehensive Software Package for Data Analysis in Molecular Biology and EvolutionMolecular Biology and Evolution, 2013
- DNA Barcoding Reveals Cryptic Diversity within Commercially Exploited Indo-Malay Carangidae (Teleosteii: Perciformes)PLOS ONE, 2012
- Bayesian Phylogenetics with BEAUti and the BEAST 1.7Molecular Biology and Evolution, 2012
- Molecular markers reveal spatially segregated cryptic species in a critically endangered fish, the common skate (Dipturus batis)Proceedings. Biological sciences, 2010
- Genetic population structure of marine fish: mismatch between biological and fisheries management unitsFish and Fisheries, 2009
- DnaSP v5: a software for comprehensive analysis of DNA polymorphism dataBioinformatics, 2009
- A Rapid Bootstrap Algorithm for the RAxML Web ServersSystematic Biology, 2008
- Origin, diversification, and historical biogeography of the genus Trachurus (Perciformes: Carangidae)Molecular Phylogenetics and Evolution, 2005
- Bayesian Coalescent Inference of Past Population Dynamics from Molecular SequencesMolecular Biology and Evolution, 2005
- Temperature or Transport? Range Limits in Marine Species Mediated Solely by FlowThe American Naturalist, 2000