File Download

There are no files associated with this item.

  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Stock structure and demographic history of the Indo-West Pacific mud crab Scylla serrata

TitleStock structure and demographic history of the Indo-West Pacific mud crab Scylla serrata
Authors
Keywordsmud crab
genetic diversity
mitochondrial DNA
mangroves
stock assessment
Indo-Pacific Ocean
Issue Date2010
Citation
Estuarine, Coastal and Shelf Science, 2010, v. 86, n. 1, p. 51-61 How to Cite?
AbstractThe 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. Our results show that an unique Scylla serrata metapopulation exists within the WIO; while throughout the entire Indo-Pacific region at least three distinct genetic stocks occur, corresponding to well-defined geographic regions (WIO, Eastern Australia and Pacific Ocean, North-Western Australia). South East China appears as the depositary of the most ancient haplotype and at the present time shares a haplotype with the Red Sea. The WIO populations show the signature of recent population bottlenecks, as expected for populations deeply exploited in a recent past. On the basis of our results, we can conclude that both the S. serrata populations and their habitats, i.e. mangrove forests and estuaries, of the WIO require future management and conservation regulations to avoiding overexploitation of this important key predator and marketable resource. © 2009 Elsevier Ltd. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/219617
ISSN
2015 Impact Factor: 2.335
2015 SCImago Journal Rankings: 1.094

 

DC FieldValueLanguage
dc.contributor.authorFratini, Sara-
dc.contributor.authorRagionieri, Lapo-
dc.contributor.authorCannicci, Stefano-
dc.date.accessioned2015-09-23T02:57:32Z-
dc.date.available2015-09-23T02:57:32Z-
dc.date.issued2010-
dc.identifier.citationEstuarine, Coastal and Shelf Science, 2010, v. 86, n. 1, p. 51-61-
dc.identifier.issn0272-7714-
dc.identifier.urihttp://hdl.handle.net/10722/219617-
dc.description.abstractThe 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. Our results show that an unique Scylla serrata metapopulation exists within the WIO; while throughout the entire Indo-Pacific region at least three distinct genetic stocks occur, corresponding to well-defined geographic regions (WIO, Eastern Australia and Pacific Ocean, North-Western Australia). South East China appears as the depositary of the most ancient haplotype and at the present time shares a haplotype with the Red Sea. The WIO populations show the signature of recent population bottlenecks, as expected for populations deeply exploited in a recent past. On the basis of our results, we can conclude that both the S. serrata populations and their habitats, i.e. mangrove forests and estuaries, of the WIO require future management and conservation regulations to avoiding overexploitation of this important key predator and marketable resource. © 2009 Elsevier Ltd. All rights reserved.-
dc.languageeng-
dc.relation.ispartofEstuarine, Coastal and Shelf Science-
dc.subjectmud crab-
dc.subjectgenetic diversity-
dc.subjectmitochondrial DNA-
dc.subjectmangroves-
dc.subjectstock assessment-
dc.subjectIndo-Pacific Ocean-
dc.titleStock structure and demographic history of the Indo-West Pacific mud crab Scylla serrata-
dc.typeArticle-
dc.description.natureLink_to_subscribed_fulltext-
dc.identifier.doi10.1016/j.ecss.2009.10.009-
dc.identifier.scopuseid_2-s2.0-72149094313-
dc.identifier.volume86-
dc.identifier.issue1-
dc.identifier.spage51-
dc.identifier.epage61-

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats