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The Brown trout grows to a length of up to 70 cm long, it was
introduced into Australia in the 1860's and spread with the
assistance of humans and by migration. Self-sustaining populations
require cool, swiftly flowing waters- these conditions are generally
restricted to the Australian Alps and in Tasmania. Populations
in the Mt Lofty Ranges are sustained through systematic introduction
of hatchery reared stock.
Brown
trout feed on a variety of animals including crustaceans,
molluscs, insects and other small fishes. Through predation
and competition, the introduction of Brown trout has had a
detrimental effect on several Australian species, especially
the galaxiids.
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