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Regional patterns in reproductive biology of Lethrinus miniatus on the Great Barrier Reef
Citation
Williams, AJ and Davies, CR and Mapstone, BD, Regional patterns in reproductive biology of Lethrinus miniatus on the Great Barrier Reef, Marine & Freshwater Research, 57, (4) pp. 403-414. ISSN 1323-1650 (2006) [Refereed Article]
DOI: doi:10.1071/MF05127
Abstract
Uniformity in fish population biology is a common assumption in many fishery assessments and management arrangements. Although spatial patterns in population biology are often unknown, ignorance of significant variation within a fished stock has profound implications for fishery assessments and management. In the current paper, the reproductive biology of an exploited reef fish, Lethrinus miniatus, was examined for populations in the northern and southern regions of the Great Barrier Reef (GBR). Significant regional variation was observed in some reproductive parameters, but not others. In the northern region, the proportion of spawning females observed during the spawning season was significantly greater and the size at sex change significantly smaller than in the southern region. However, the spawning season, age at sex change and sex ratios did not differ significantly between the northern and southern regions. Size and age at maturity could not be estimated from either of these regions, but an estimate was obtained from the Capricorn?Bunker region at the southern tip of the GBR. The observed regional patterns in reproductive biology of L. miniatus populations have important implications for specific management arrangements such as size limits and seasonal closures, and for fisheries management in general. © CSIRO 2006.
Item Details
Item Type: | Refereed Article |
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Research Division: | Biological Sciences |
Research Group: | Ecology |
Research Field: | Freshwater ecology |
Objective Division: | Environmental Management |
Objective Group: | Other environmental management |
Objective Field: | Other environmental management not elsewhere classified |
UTAS Author: | Mapstone, BD (Professor Bruce Mapstone) |
ID Code: | 48334 |
Year Published: | 2006 |
Web of Science® Times Cited: | 27 |
Deposited By: | CRC-Antarctic Climate & Ecosystems |
Deposited On: | 2007-10-05 |
Last Modified: | 2007-10-05 |
Downloads: | 0 |
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