Population genetic structure of giant clams, Tridacna gigas (Family Tridacnidae), on the Great Barrier Reef

Evans, B.S., and Jerry, D.R. (2006) Population genetic structure of giant clams, Tridacna gigas (Family Tridacnidae), on the Great Barrier Reef. Journal of Fisheries and Aquatic Science, 1 (3). pp. 235-243.

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Abstract

The Great Barrier Reef (GBR) is one of the few remaining Pacific reef systems where the giant clam, Tridacna gigas, can be found in large numbers. Genetic data from Inter-Simple Sequence Repeat loci (ISSR) suggest low levels of genetic structuring among four north-central GBR populations (PhiPT = 0.0322, p = 0.005), with significant genetic differences evident between populations from Thetford and Grub Reefs. The data suggests a weak correlation of genetic differentiation among populations and their linear distance of geographical separation. The region of the GBR sampled here is approximately a quarter of the total distribution of T. gigas. Significant genetic structuring may therefore be present between northern and southern GBR T. gigas populations and consequently, a conservative approach should be practiced relating to the translocation of this species throughout the GBR.

Item ID: 3638
Item Type: Article (Refereed Research - C1)
Keywords: DNA; bivalve mollusc; ISSR; polymorphic; gene flow
ISSN: 1996-0751
Date Deposited: 26 Nov 2009 22:36
SEO Codes: 83 ANIMAL PRODUCTION AND ANIMAL PRIMARY PRODUCTS > 8301 Fisheries - Aquaculture > 830199 Fisheries - Aquaculture not elsewhere classified @ 100%
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