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Swimming in the deep end of the gene pool: global population structure of an oceanic giant

Bradshaw, Corey J. A. (2007). Swimming in the deep end of the gene pool: global population structure of an oceanic giant. Molecular Ecology,16(24):5111-5113.

Document type: Journal Article
Citation counts: Scopus Citation Count Cited 9 times in Scopus Article | Citations
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Title Swimming in the deep end of the gene pool: global population structure of an oceanic giant
Author Bradshaw, Corey J. A.
Journal Name Molecular Ecology
Publication Date 2007
Volume Number 16
Issue Number 24
ISSN 1365-294X   (check CDU catalogue open catalogue search in new window)
Scopus ID 2-s2.0-37249091172
Start Page 5111
End Page 5113
Total Pages 3
Place of Publication Oxford, England
Publisher Blackwell Publishing
Field of Research 0602 - Ecology
HERDC Category C2 - Journal Article - Other contributions to refereed journal (internal)
Abstract Despite the impression held by some that few biological mysteries remain, even evocative species such as humpback whales (Megaptera novaeangliae), white sharks (Carcharodon carcharias) and green turtles (Chelonia mydas) have poorly documented movement patterns, reproductive strategies and population dynamics despite years of dedicated research. This is largely due to the difficulty of observing wide-ranging marine species over the majority of their life cycle. The advent of powerful tracking devices has certainly improved our understanding, but it is usually only with molecular tools that the nature of population structure becomes apparent. In this issue of Molecular Ecology, Castro and colleagues have provided the first global-scale assessment of population structure for the largest fish — whale sharks (Rhincodon typus). Whale sharks can reach lengths > 12 m and are a popular tourist attraction at places where they aggregate, yet for most of their life cycle, we know little indeed of where they go and how they interact with other populations. Previous tracking studies imply a high dispersal capacity, but only now have Castro and colleagues demonstrated high gene flow and haplotype diversity among the major ocean basins where they are found.
DOI http://dx.doi.org/10.1111/j.1365-294X.2007.03548.x   (check subscription with CDU E-Gateway service for CDU Staff and Students  check subscription with CDU E-Gateway in new window)
 
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