Brief description
Within-region genetic heterogeneity of Holothuria scabra populations in New Caledonia was examined through allozyme electrophoresis. Five locations, each separated by 60-130 km, were selected along the coast of New Caledonia and 2 replicate sites (8-23 km apart) were chosen within 4 of these locations on the west coast of the island. Only one site was selected on the northeast coast. Between 14 and 34 adult Holothuria scabra were collected from each site. A short section of the upper intestine (5-10 cm), without sediments, was dissected from each animal and stored in liquid nitrogen until analysed. \n\nHolothuria scabra samples from Bali (n=90) and Knocker Bay, Australia (n=47), and existing data from the western Pacific: Solomon Islands; Torres Strait; and the Queensland Coast (Upstart Bay and Hervey Bay) were compared with the data from New Caledonia to investigate larval connectivity over a wider geographic scale. \n\nSeven polymorphic enzyme loci were surveyed using allozyme electrophoresis: GPI, HK, MDH, PEP-1, PEP-2, PEP-3 and PGM. Basic analyses of genetic variability (allele frequencies, number of polymorphic loci, heterozygosity) were carried out. The allelic richness for each population was calculated. F statistics were calculated and genetic distance analyses, cluster analyses and Mantel tests were performed.Full description
Point of truth URL of this metadata record -http://gcmd.nasa.gov/Resources/valids/archives/keyword_list.html -
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Subjects
Aquatic Sciences |
Aspidochirotida |
Biological Classification |
Biosphere |
Coastal Processes |
Coral Reefs |
Echinoderms |
Ecological Dynamics |
Electrophoresis |
Fisheries |
Holothuria scabra |
Holothuroidea |
Invertebrate fisheries |
Oceans |
Population genetics |
Restocking |
Sandfish |
Sea cucumber |
Trepang |
User Contributed Tags
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Identifiers
- Local : genetic-diversity-of-the-sea-cucumber-holothuria-scabra-in-new-caledonia-australia-northern-ter
- URI : data.gov.au/dataset/0614d1ac-2639-43d0-aaaf-9b8b6cec817b
