Impacts of stock enhancement strategies on the effective population size of Murray cod, Maccullochella peelii, a threatened Australian fish

Ingram, B. A., Hayes, B. and Rourke, M. L. (2011) Impacts of stock enhancement strategies on the effective population size of Murray cod, Maccullochella peelii, a threatened Australian fish. Fisheries Management and Ecology, 18 6: 467-481. doi:10.1111/j.1365-2400.2011.00798.x


Author Ingram, B. A.
Hayes, B.
Rourke, M. L.
Title Impacts of stock enhancement strategies on the effective population size of Murray cod, Maccullochella peelii, a threatened Australian fish
Formatted title
Impacts of stock enhancement strategies on the effective population size of Murray cod, Maccullochella peelii, a threatened Australian fish
Journal name Fisheries Management and Ecology   Check publisher's open access policy
ISSN 0969-997X
1365-2400
Publication date 2011-12
Sub-type Article (original research)
DOI 10.1111/j.1365-2400.2011.00798.x
Open Access Status Not Open Access
Volume 18
Issue 6
Start page 467
End page 481
Total pages 15
Place of publication Chichester, West Sussex, United Kingdom
Publisher Wiley-Blackwell Publishing
Language eng
Formatted abstract
Murray cod, Maccullochella peelii (Mitchell) is an iconic Australian species endemic to the Murray-Darling Basin (MDB) of inland south-eastern Australia. Murray cod has been a valuable food source and supported a large commercial fishery throughout much of the 20th century. Over-fishing and habitat destruction have resulted in significant declines in Murray cod populations throughout much of its range. Since the early 1980s, large numbers of Murray cod have been stocked into waterways to support both recreational fishing and conservation efforts. In this study, the likely impacts of past and current stocking practices on genetic diversity of Murray cod were modelled and new strategies to maximise genetic diversity in stocked populations are explored. The results suggest that a large, well-managed breeding and stocking programme could help maintain genetic diversity of Murray cod across the MDB. In catchments within the MDB where the effective population size is very small, a well-designed stocking programme, following strict guidelines for numbers of families reared and number of individuals maintained per family, could increase genetic diversity in a few generations.
Keyword Broodstock
Conservation
Genetics
Stocking
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Non-UQ

Document type: Journal Article
Sub-type: Article (original research)
Collection: Queensland Alliance for Agriculture and Food Innovation
 
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