Document Detail


The effects of turbidity, prey density and environmental complexity on the feeding of juvenile Murray cod Maccullochella peelii.
MedLine Citation:
PMID:  22220898     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
Juvenile Murray cod Maccullochella peelii exhibited a type II functional response while preying on blackworms Lumbriculus variegatus, and the parameters of the type II model did not differ significantly between clear (0 NTU) and turbid (150 NTU) treatments. Further experiments showed that vision may not be necessary for prey detection and capture by juvenile M. peelii; consumption of inanimate prey was not significantly different between light and dark (<1 × 10(-4) µE m(-2) s(-1) ) trials. These results imply that the sensory physiology of M. peelii is well adapted to a turbid visual environment. In addition, habitat complexity increased the food consumption rate of juvenile M. peelii, perhaps by relaxing innate predator avoidance behaviours that depress foraging in more open environments.
Authors:
S Allen-Ankins; R J Stoffels; P A Pridmore; M T Vogel
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Journal of fish biology     Volume:  80     ISSN:  1095-8649     ISO Abbreviation:  J. Fish Biol.     Publication Date:  2012 Jan 
Date Detail:
Created Date:  2012-01-06     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0214055     Medline TA:  J Fish Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  195-206     Citation Subset:  IM    
Copyright Information:
© 2012 The Authors. Journal of Fish Biology © 2012 The Fisheries Society of the British Isles.
Affiliation:
Department of Environmental Management and Ecology, La Trobe University, Albury-Wodonga Campus, P. O. Box 821, University Drive, Wodonga 3690, Australia CSIRO Land and Water, P. O. Box 991, Wodonga, VIC, 3689, Australia Murray-Darling Freshwater Research Centre, P. O. Box 991, Wodonga, VIC, 3689, Australia.
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