Aspects of the biology of Galaxias maculatus

Laurenson, L. J. B., French, R. P., Jones, P., Ierodiaconou, D., Gray, S., Versace, V. L., Rattray, A., Brown, S. and Monk, J. 2012, Aspects of the biology of Galaxias maculatus, Journal of fish biology, vol. 81, no. 3, pp. 1085-1100.

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Title Aspects of the biology of Galaxias maculatus
Formatted title Aspects of the biology of Galaxias maculatus
Author(s) Laurenson, L. J. B.
French, R. P.
Jones, P.
Ierodiaconou, D.
Gray, S.
Versace, V. L.
Rattray, A.
Brown, S.
Monk, J.
Journal name Journal of fish biology
Volume number 81
Issue number 3
Start page 1085
End page 1100
Total pages 16
Publisher Wiley-Blackwell Publishing
Place of publication Oxford, England
Publication date 2012-08
ISSN 0022-1112
1095-8649
Keyword(s) condition
galaxid
growth
reproduction
salinity tolerance
Summary 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.
Language eng
Field of Research 060204 Freshwater Ecology
070402 Aquatic Ecosystem Studies and Stock Assessment
Socio Economic Objective 960807 Fresh, Ground and Surface Water Flora, Fauna and Biodiversity
HERDC Research category C1 Refereed article in a scholarly journal
Copyright notice ©2012, The Authors
Persistent URL http://hdl.handle.net/10536/DRO/DU:30048021

Document type: Journal Article
Collection: School of Life and Environmental Sciences
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