Presentation on theme: "Salmonid Natural History Species and History. Salmonid Species and History O The family Salmonidae consists of a variety of salmon and trout species in."— Presentation transcript:
Salmonid Natural History Species and History
Salmonid Species and History O The family Salmonidae consists of a variety of salmon and trout species in several phylogenetic branches. O The Pacific salmon, rainbow trout, and cutthroat Trout are all in the genus Oncorhynchus.
Relationships the Salmonids From Smith and Stearly 1989 graylings Salmonidae taimen lenoks Atlantic salmon Brachymystax Hucho Thymallu s brown trout Salmo Onchoryhnchus rainbow trout cutthroat trout Pacific salmon Adriatic trout Salvelinus Arctic char Dolly Varden bull trout Pacific Salmon chars bold represents fish of the Pacific Northwest
Glacial Lake Elwha Salmon Colonization of the Elwha river watershed
After the Ice But, as the glaciers receeded and the lake drained, new land was exposed and forests began to reclaim the valleys. While ice filled the strait, salmon and other fish could not migrate into the Elwha Valley.
California golden trout Columbia redband trout Coastal Rainbow trout Rio Yaqui trout chrysogaster Mayo trout irideus gairdnerii aguabonita newberrii Great Basin redband trout Beardslee trout nelsoni San Pedro Mártir trout irideus f. beardsleei Little Kern River golden trout f. whitei Mykiss Rainbow trout Golden trout Mexican golden trout Rio Piaxtla trout Rio San Lorenzo trout Relationships of the Rainbow trout (mykiss)
Rainbow Trout Colonization and Evolution
Trout of Mexico
Relationships of the Cutthroat trout (clarki) cutthroat trout Westslope Lahotan Coastal Bonneville Rio Grande Yellowstone Colorado River Greenback Paiute Alvord Crescenti Clarki clarki f. crescentii alvordensis seleniris henshawi lewisi Lower Snake river spp. utah bouvieri Upper Snake river spp. pleuriticus stomias virginalis macdonald Yellowfin Bold indicates major subspecies, non-bold is a minor subspecies, talics indicates now extinct, small font indicates not likely a true subspecies, but rather a form
Cutthroat Trout Colonization and Evolution
How do fish cross mountain ranges? As the climate warms, trout can survive in the lower rivers
Beardslee and Crescenti Cutthroat Trout in Lake Crescent