Document Detail

Variation in larval growth can predict the recruitment of a temperate, seagrass-associated fish.
MedLine Citation:
PMID:  16429313     Owner:  NLM     Status:  MEDLINE    
Understanding the factors leading to inter-annual variation in recruitment of animals with complex life cycles is a key goal for ecology and the sustainable management of animal resources, such as fisheries. We used otolith microstructure to determine larval growth rates of post-larval King George whiting, Sillaginodes punctata, in seagrass beds of Port Phillip Bay, Australia. Inter-annual variation in growth determined early in the pelagic, offshore larval-stage was highly correlated with post-larval abundance (a predictor of fishery recruitment). Sea surface temperature measured near the presumed spawning area off Western Victoria was significantly correlated with larval growth, and was also significantly correlated with post-larval abundance in Port Phillip Bay. Increased water temperature would have had the direct effect of increasing larval growth and therefore contributing to larval survival, but may also have been indicative of enhanced physical transport and/or plankton productivity. Overall, larval growth rate of King George whiting is a very strong predictor of post-larval abundance, which in turn will influence fishery recruitment in 3-5 years' time.
Gregory P Jenkins; Daniel King
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Publication Detail:
Type:  Journal Article     Date:  2006-01-21
Journal Detail:
Title:  Oecologia     Volume:  147     ISSN:  0029-8549     ISO Abbreviation:  Oecologia     Publication Date:  2006 Apr 
Date Detail:
Created Date:  2006-03-22     Completed Date:  2006-07-13     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0150372     Medline TA:  Oecologia     Country:  Germany    
Other Details:
Languages:  eng     Pagination:  641-9     Citation Subset:  IM    
Primary Industries Research Victoria, Marine and Freshwater Systems, Department of Zoology, University of Melbourne, P.O. Box 114, Queenscliff 3225, Australia.
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MeSH Terms
Larva / growth & development
Otolithic Membrane / anatomy & histology
Perciformes / anatomy & histology,  physiology*
Population Dynamics
Time Factors

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