Bull Trout (Salvelinus confluentus) belong to fish collectively known as char that includes:
Arctic Char (S. alpinus)
White-Spotted Char (S. leucomaenis)
Dolly Varden (S. malma)
Lake Trout (S. namaycush)
Brook Trout (S. fontinalis)
Bull Trout native to:
western North America
northern California
Nevada
through areas of Canada
Brook Trout are native to eastern North America, but have been stocked in rivers and streams throughout the western United States, including many within the range of Bull Trout.
Bull Trout and Brook Trout when they co-occur
they often spawn together
produce hybrid offspring
Genetic evidence from hybrid populations suggests
hybrids are almost always sterile
hybrids cannot produce offspring of their own
hybrid DNA are not passed on to future generations
has caused dramatic declines of Bull Trout in many streams including Sun Creek
Bull Trout - Brook Trout Hybrid from Sun Creek.
NPS
Last updated: February 28, 2015
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Contact Info
Mailing Address:
Crater Lake National Park
PO Box 7
Crater Lake,
OR
97604
