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dc.creatorUthicke, S.
dc.creatorPurcell, S.
dc.identifier.citationCanadian Journal of Fisheries and Aquatic Sciences 61: 519-528
dc.description.abstractPopulation genetics analyses should be considered when releasing hatchery-produced juveniles of the sea cucumber Holothuria scabra when spawners from nonlocal populations are used. In New Caledonia, within-region genetic heterogeneity of H. scabra populations (examined through allozyme electrophoresis of 258 animals) indicated high gene flow between nine sites and F<sub>ST</sub> values dOld_ID not deviate significantly from zero. However, exact tests indicated that populations at two sites with limited water exchange in the southern location were significantly different from populations at three other locations on the west coast. Inclusion of H. scabra sampled in Bali (n = 90) and Knocker Bay, Australia (n = 47), and comparisons with existing data from the west Pacific (Torres Strait, Solomon Islands, Upstart Bay, Hervey Bay) showed that populations were significantly different (using exact tests) and samples partitioned distinctly using unweighted pair group method with arithmetic mean clustering. Rogers’ genetic distance values between populations were significantly related to geographic distances, showing a pattern of isolation by distance. The rapOld_ID increase in genetic distance over the first few hundred kilometres supports the view that the spatial extent of any translocation needs to be carefully considered on the basis of knowledge of variation in allele frequencies within the target area.
dc.publisherNational Research Council of Canada
dc.sourceCanadian Journal of Fisheries and Aquatic Sciences
dc.titlePreservation of genetic diversity in restocking of the sea cucumber Holothuria scabra investigated by allozyme electrophoresis
dc.typeJournal Article
dcterms.bibliographicCitationUthicke, S.; Purcell, S. (2004). Preservation of genetic diversity in restocking of the sea cucumber Holothuria scabra investigated by allozyme electrophoresis. Canadian Journal of Fisheries and Aquatic Sciences 61: 519-528
dc.description.versionPeer Review
cg.coverage.countryNew Caledonia
cg.coverage.countrySolomon Islands
cg.subject.agrovocsea cucumbers
cg.identifier.statusLimited access
cg.identifier.ISIindexedISI indexed
cg.contribution.worldfishauthorUthicke, S. and S. Purcell
cg.description.themeSustainable aquaculture

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