Phylogeographical analysis of two aristed shrimps, Aristeus antennatus and Aristaemorpha foliacea (Crustacea: Aristeidae), with implications for resource conservation
The conservation of species relies on a deep knowledge of biology of the species concerned, as well as on the identification of reproductively isolated units, which are genetically different from one other (genetic stocks). Red shrimps, Aristeus antennatus and Aristaeomorpha foliacea, are commercial...
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| Format: | doctoral thesis |
| Status: | Published version |
| Publication Date: | 2012 |
| Country: | España |
| Institution: | CBUC, CESCA |
| Repository: | TDR. Tesis Doctorales en Red |
| OAI Identifier: | oai:www.tdx.cat:10803/98477 |
| Online Access: | http://hdl.handle.net/10803/98477 |
| Access Level: | Open access |
| Keyword: | Genètica de poblacions Population genetics Genética de poblaciones Gestió de la pesca Fisheries management Gestión de la pesca ADN mitocondrial Filogeografia Phylogeography Filogeografía Aristeiade Aristeus antennatus Aristaemorpha foliacea 575 |
| Summary: | The conservation of species relies on a deep knowledge of biology of the species concerned, as well as on the identification of reproductively isolated units, which are genetically different from one other (genetic stocks). Red shrimps, Aristeus antennatus and Aristaeomorpha foliacea, are commercially important decapods with a large distributional range in the Mediterranean Sea (MED), Atlantic Ocean (AO) and Mozambique Channel (MOZ). The genetic analysis of harvesting grounds of A. antennatus and A. foliacea has allowed identify four genetic stocks within each species and sampled area. The Strait of Gibraltar, the Strait of Sicily and the Peloponnesian gyre were identified as major barriers to gene flow within the Mediterranean Sea and adjacent waters. Furthermore, A. antennatus was identified as a monophyletic species whilst in A. foliacea three genetic lineages were detected, one of which presented multilocus support, so as to be considered a different genetic species. |
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