Spatial, temporal and size-class variation in the diet of estuary perch (Macquaria colonorum) in the Hopkins River, Victoria, Australia

Howell, Timothy, Laurenson, Laurie, Myers, Jackie and Jones, Paul 2004, Spatial, temporal and size-class variation in the diet of estuary perch (Macquaria colonorum) in the Hopkins River, Victoria, Australia, Hydrobiologia, vol. 515, no. 1-3, pp. 29-37.

Attached Files
Name Description MIMEType Size Downloads

Title Spatial, temporal and size-class variation in the diet of estuary perch (Macquaria colonorum) in the Hopkins River, Victoria, Australia
Formatted title Spatial, temporal and size-class variation in the diet of estuary perch (Macquaria colonorum) in the Hopkins River, Victoria, Australia
Author(s) Howell, Timothy
Laurenson, Laurie
Myers, Jackie
Jones, Paul
Journal name Hydrobiologia
Volume number 515
Issue number 1-3
Start page 29
End page 37
Publisher Kluwer Academic Publishers
Place of publication Dordrecht, The Netherlands
Publication date 2004-03
ISSN 0018-8158
1573-5117
Keyword(s) feeding
Macquaria colonorum
estuary perch
diet
Victoria estuary freshwater
Summary The dietary importance of prey of estuary perch (Macquaria colonorum; Percicthyidae: Günther) was examined spatially, temporally and among size classes. Fish were collected from the Hopkins River, south-western Victoria, from September 1998 to February 1999. The species is a euryhaline, euryphagic carnivore with spatial, temporal and size class variations in diets. Fish caught from estuarine locations consumed primarily Paratya australiensis (40% IRI) while freshwater fish consumed mostly Tricopteran larvae (63.5% IRI). In both freshwater and estuarine locations, the relative importance of P. australiensis decreased with increasing length of fish. Diet changed seasonally, indicating opportunistic changes in prey. The species selected particular prey items relative to environmental availability (P. australiensis, Amarinus lacustrine).
Language eng
Field of Research 060899 Zoology not elsewhere classified
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2004, Kluwer Academic Publishers
Persistent URL http://hdl.handle.net/10536/DRO/DU:30002822

Connect to link resolver
 
Unless expressly stated otherwise, the copyright for items in DRO is owned by the author, with all rights reserved.

Versions
Version Filter Type
Citation counts: TR Web of Science Citation Count  Cited 10 times in TR Web of Science
Scopus Citation Count Cited 8 times in Scopus
Google Scholar Search Google Scholar
Access Statistics: 464 Abstract Views, 0 File Downloads  -  Detailed Statistics
Created: Mon, 07 Jul 2008, 08:35:25 EST

Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.