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