Journal
JOURNAL OF FISH BIOLOGY
Volume 80, Issue 6, Pages 2140-2158Publisher
WILEY-BLACKWELL
DOI: 10.1111/j.1095-8649.2012.03228.x
Keywords
estuary; microsatellites; mitochondria; northern Australia population; predator; structure
Categories
Funding
- Tropical Rivers and Coastal Knowledge Research Hub, Charles Darwin University, Darwin
- Molecular Fisheries Laboratory, Department of Employment, Economic Development and Innovation, Queensland Government
- Bioscience North Australia
Ask authors/readers for more resources
Reproductive philopatry in bull sharks Carcharhinus leucas was investigated by comparing mitochondrial (NADH dehydrogenase subunit 4, 797 base pairs and control region genes 837 base pairs) and nuclear (three microsatellite loci) DNA of juveniles sampled from 13 river systems across northern Australia. High mitochondrial and low microsatellite genetic diversity among juveniles sampled from different rivers (mitochondrial fST = 0.0767, P < 0.05; microsatellite FST = -0.0022, P > 0.05) supported female reproductive philopatry. Genetic structure was not further influenced by geographic distance (P > 0.05) or long-shore barriers to movement (P > 0.05). Additionally, results suggest that C. leucas in northern Australia has a long-term effective population size of 11 000-13 000 females and has undergone population bottlenecks and expansions that coincide with the timing of the last ice-ages.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available