Species: Salmo trutta
Brown Trout
Species
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Encyclopedia of Puget Sound
Classification
Kingdom
Animalia
Phylum
Craniata
Class
Actinopterygii
Order
Salmoniformes
Family
Salmonidae
Genus
Salmo
NatureServe
Classification
Informal Taxonomy
Animals, Vertebrates - Fishes - Bony Fishes - Salmon and Trouts
Formal Taxonomy
Animalia - Craniata - Actinopterygii - Salmoniformes - Salmonidae - Salmo - See Bernatchez (2001) for a phylogeographic analysis based on mtDNA data.
Ecology and Life History
Habitat Type Description
Freshwater
Migration
true - true - false - Migrates between lakes and spawning streams or between sea and spawning streams in some areas (Scott and Crossman 1973).
Non-migrant
true
Locally Migrant
true
Food Comments
Eats aquatic and terrestrial insects and their larvae, crustaceans (especially crayfish), molluscs, fishes, and other animals. In streams, young feed mainly on aquatic and terrestrial drift invertebrates; in lakes, they feed on zooplankton and benthic invertebrates (Sublette et al. 1990). Large adults feed on fishes, crayfish, and other benthic invertebrates.
Reproduction Comments
Spawns in fall or early winter. Eggs hatch in 1-2 months, depending on temperature. Sexually mature in 2nd or 3rd year (or up to 5th year). Typically spawns in more than one year.
Ecology Comments
Preys on other species of trout and competes with them for food and space (Sublette et al. 1990).
Length
103
Conservation Status
NatureServe Global Status Rank
G5
Global Status Last Reviewed
1996-09-12
Global Status Last Changed
1996-09-12
Other Status
LC - Least concern
Distribution
Conservation Status Map
<img src="http://www.natureserve.org/explorer/servlet/GetMapGif?CA.AB=SE&CA.BC=SE&CA.MB=SE&CA.NB=SE&CA.NF=SE&CA.NS=SE&CA.ON=SE&CA.PE=SE&CA.QC=SE&CA.SK=SE&US.AL=SE&US.AZ=SE&US.AR=SE&US.CA=SE&US.CO=SE&US.CT=SE&US.DE=SE&US.DC=SE&US.GA=SE&US.ID=SE&US.IL=SE&US.IN=SE&US.IA=SE&US.KY=SE&US.ME=SE&US.MD=SE&US.MA=SE&US.MI=SE&US.MN=SE&US.MO=SE&US.MT=SE&US.NN=SE&US.NE=SE&US.NV=SE&US.NH=SE&US.NJ=SE&US.NM=SE&US.NY=SE&US.NC=SE&US.ND=SE&US.OH=SE&US.OK=SE&US.OR=SE&US.PA=SE&US.RI=SE&US.SD=SE&US.TN=SE&US.UT=SE&US.VT=SE&US.VA=SE&US.WA=SE&US.WV=SE&US.WI=SE&US.WY=SE" alt="Conservation Status Map" style="width: 475px; height: auto;" />
Global Range
Native to Europe and western Asia. Introduced and established throughout much of U.S. and southern Canada; locally common.