Stock structure and demographic history of the Indo-West Pacific mud crab Scylla serrata |
| |
| Authors: | Sara Fratini Lapo Ragionieri Stefano Cannicci |
| |
| Institution: | Department of Evolutionary Biology “Leo Pardi”, via Romana 17, 50125 Firenze, Italy |
| |
| Abstract: | The increasing exploitation of mangrove forests, without any sustainable planning, has been seriously compromising the survival of this ecosystem and of its exclusive resources. Scylla serrata is one of the most commercially exploited crabs inhabiting mangroves and estuaries of the Indo-Pacific region. This species is extensively harvested, mainly for selling to the tourist market, and, as a consequence, its populations are in constant decline. The aim of the present study was to assess the level of genetic exchange of S. serrata within the Western Indian Ocean (WIO), using a population genetic structure approach. To achieve this goal, we reconstructed the intra-specific geographic pattern of genetic variation by partial sequencing the mitochondrial DNA cytochrome oxidase subunit I, in samples from seven mangrove sites of the WIO. Our data set then encompassed all the sequences for the same genetic marker deposited in Genbank and corresponding to samples from South East Asia, Australia and some Pacific Islands: this allowed us to estimate the level of connectivity among S. serrata populations within its distribution area. |
| |
| Keywords: | mitochondrial DNA genetic diversity mud crab Indo-Pacific Ocean mangroves stock assessment |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
