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Australian Wildlife

  Brown Trout (Salmo trutta)





Brown Trout | Salmo trutta photo
Brown Trout

Image by Kazug44 - License: Public Domain.    (view image details)

Brown Trout | Salmo trutta photo
Brown Trout

Image by Eric Engbretson for U.S. Fish and Wildlife Service - License: Public Domain.    (view image details)







BROWN TROUT FACTS

Description
Moderately deep, torpedo-shaped body with a large terminal mouth extending slightly obliquely to below the eyes. Short-based dorsal fin high on back originating in front of ventral fins; fleshy adipose fin behind dorsal. Colour variable, usually brown or olive with dark spots on the sides, dorsal fin and gill covers. Tail with few if any spots. Body paler below mid-line, and most spots surrounded by a pale halo and often reddish.

An introduced species that is well established in cooler waterways of south-eastern Australia, the Brown Trout is still actively stocked for angling purposes, despite the fact that it severely impacts native aquatic species. Some fish find their way to the sea, mainly inhabiting estuarine and shallow coastal waters. Colour variable, and influenced by age, habitat and diet. In a marine environment they change colour to much more silvery overall and have a few indistinct spots. Breeding male has enlarged jaws with tip of lower jaw forming a hook.

Author credit: Ralph Foster & Amanda Manuel / South Australian Museum

Habitat
Cool freshwater streams and lakes. Can also move out into estuaries and shallow coastal waters.

Food
Carnivore

Range
South-eastern Australia


Species Description is from Museums Field Guide, Atlas of Living Australia at website at https://lists.ala.org.au Licensed under Creative Commons Creative Commons Attribution 3.0 License.




Classification
Class:Actinopterygii
Order:Salmoniformes
Family:Salmonidae
Genus:Salmo
Species:trutta
Common Name:Brown Trout