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Aspects of the biology of Galaxias maculatus

Citation

Laurenson, LJB and French, RP and Jones, P and Ierondiaconou, D and Gray, S and Versace, VL and Rattray, A and Brown, S and Monk, J, Aspects of the biology of Galaxias maculatus, Journal of Fish Biology, 81, (3) pp. 1085-1100. ISSN 0022-1112 (2012) [Refereed Article]

Copyright Statement

Copyright 2012 The Authors

DOI: doi:10.1111/j.1095-8649.2012.03383.x

Abstract

The biology of three landlocked and a riverine population of Galaxias maculatus were examined in western Victoria, Australia. All systems supported reproducing populations of these fish, including Lake Corangamite which had salinities that on occasion reached 82. Spawning sites in Lake Corangamite were located in adjacent tributaries and not in the main lake as was the case for other populations. The smallest fish were found in the fresh water Lake Purrumbete and the largest in the hypersaline Lake Corangamite. The size at which 50% of the population attained sexual maturity varied across sites, with fish maturing at a smaller size in Lake Purrumbete, followed by the Merri River, Lake Bullen Merri and Lake Corangamite. Condition was higher in the freshwater Lake Purrumbete and there was no relationship between condition and temperature, conductivity, turbidity and pH; but there was a positive relationship between condition and dissolved oxygen. Length frequency analysis suggested that the majority of fishes live for a year.

Item Details

Item Type:Refereed Article
Keywords:Galaxias maculatus
Research Division:Agricultural and Veterinary Sciences
Research Group:Fisheries Sciences
Research Field:Aquatic Ecosystem Studies and Stock Assessment
Objective Division:Environment
Objective Group:Flora, Fauna and Biodiversity
Objective Field:Fresh, Ground and Surface Water Flora, Fauna and Biodiversity
Author:Monk, J (Dr Jacquomo Monk)
ID Code:99547
Year Published:2012
Web of Science® Times Cited:5
Deposited By:IMAS Research and Education Centre
Deposited On:2015-03-27
Last Modified:2017-11-04
Downloads:0

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