Pre- and post-flood feeding ecology of four species of juvenile fish from the logan-albert estuarine system, moreton bay, queensland

Sumpton W. and Greenwood J. (1990) Pre- and post-flood feeding ecology of four species of juvenile fish from the logan-albert estuarine system, moreton bay, queensland. Marine and Freshwater Research, 41 6: 795-806. doi:10.1071/MF9900795


Author Sumpton W.
Greenwood J.
Title Pre- and post-flood feeding ecology of four species of juvenile fish from the logan-albert estuarine system, moreton bay, queensland
Journal name Marine and Freshwater Research   Check publisher's open access policy
ISSN 1323-1650
Publication date 1990-01-01
Sub-type Article (original research)
DOI 10.1071/MF9900795
Open Access Status Not yet assessed
Volume 41
Issue 6
Start page 795
End page 806
Total pages 12
Language eng
Subject 1910 Oceanography
1105 Ecology, Evolution, Behavior and Systematics
2303 Ecology
1104 Aquatic Science
Abstract The feeding ecology of the four dominant species of juvenile fish found in the Logan-Albert estuarine system are described in terms of the stomach contents of 675 fish examined over a 7-month period. Ontogenetic dietary changes and spatial, temporal and interspecific differences in diet were determined. Johniops vogleri and Polynemus multiradiatus were predominantly planktonic feeders. At an early stage of development, these fish fed mainly on copepods, which were progressively replaced by larger prey such as mysids and Acetes as the fish grew. Arius graeffei and Aseraggodes macleayanus were mainly benthic feeders. Spatial and temporal differences in diet were also evident for each species. These differences probably reflected changes in prey availability resulting from flood-induced changes to the salinity gradient. The potential for competition between Johniops vogleri and Polynemus multiradiatus was reduced by temporal partitioning of food resources as the fish grew.
Q-Index Code C1
Q-Index Status Provisional Code
Institutional Status Unknown

Document type: Journal Article
Sub-type: Article (original research)
Collection: Scopus Import - Archived
 
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Created: Tue, 22 Aug 2017, 00:13:21 EST by System User