The Swan galaxias, family Galaxiidae, is a small, stout freshwater fish, reaching a maximum length of approximately 135 mm. Adults are light olive-green in colour with light brown bars or blotches on the back and sides, tending to silvery-white on the underside. The head is relatively broad and flattened. Superficially, the Swan galaxias looks similar to a number of other galaxiid species, but is
distinguished by the position of the dorsal fin origin which is directly above the vent.
Swan Galaxias |
Galaxias fontanus
Status: Endangered on the EPBC Act list
Government evidence of impact of climate change:
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Australian Government, Conservation Advice, Galaxias fontanus
Other likely threats include vegetation clearing; fragmentation due to populations being isolated from one another; construction of water storages within the catchments where the species occurs (TSS 2006) and sudden droughts and floods driven by climate change.
Sudden suspected All the natural populations of Swan galaxias are in small stream flow future headwater streams which are vulnerable to the extreme changes fluctuations in stream flow characteristic of the area caused by (Hughes 1987); which are likely to be exacerbated by climate flood or change driven events of heavy rain followed by long periods of drought dry weather (Tas CCO 2012).
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