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Please use this identifier to cite or link to this item: http://hdl.handle.net/2440/74138

Type: Journal article
Title: The use of food resources by 0+ snapper, Chrysophrys auratus, from northern Spencer Gulf, South Australia
Author: Saunders, Richard James
Fowler, Anthony John
Gillanders, Bronwyn
Citation: Marine and Freshwater Research, 2012; 63(8):680-686
Publisher: CSIRO Publishing
Issue Date: 2012
ISSN: 1323-1650
School/Discipline: School of Earth and Environmental Sciences
Statement of
Responsibility: 
Richard J. Saunders, Anthony J. Fowler and Bronwyn M. Gillanders
Abstract: Food availability is an important factor in survival and growth of juvenile fish and has been proposed as a major factor shaping the patterns of distribution and abundance of 0+ snapper, Chrysophrys auratus, in New Zealand and Japan. Thus, we tested the hypothesis that diet of 0+ snapper would exhibit spatial variation related to their abundance within a major nursery region. Therefore, we described the stomach contents of 0+ snapper collected from within a nursery region in areas of low and high abundance of 0+ snapper. The data also provided the opportunity to consider sized based differences in diet and temporal feeding patterns. 0+ snapper were generalist carnivores that preyed on a wide range of invertebrates and fish. No evidence of sized based dietary variation was identified but feeding either ceased or was much reduced during the hours of darkness. The major finding was that more polychaetes were present in the stomachs of 0+ snapper in the area of high 0+ snapper abundance than in the areas of low 0+ snapper abundance. The spatial differences in diet observed supports the hypothesis that prey availability is important as a driver of habitat selection by 0+ fish.
Keywords: Diet; nursery; Pagrus; recruitment
Rights: © CSIRO 2012
RMID: 0020121739
DOI: 10.1071/MF11266
Appears in Collections:Environment Institute Publications
Environment Institute Leaders
Earth and Environmental Sciences Publications
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