TitleDiamond Lake: a new approach to restoration
Publication TypeJournal Article
Year of Publication2016
AuthorsCarroll, Trish, and Rich Miller
Secondary TitleLake Wise: Newsletter from Oregon Lakes Association
Paginationp.3-4
Date Published2016, Sep.
Call NumberOSU Libraries: Digital Open Access
KeywordsDiamond Lake, North Umpqua River, Umpqua River Basin, introduced species, Tui chub = Gila bicolor, golden shiner = Notemigonus crysoleucas, tiger trout, predation, population biology
NotesThe introduced tui chub has been plaguing Diamond Lake since the 1940s. The chub destroyed a valuable trout fishery, caused increased algae growth, and damaged the lake’s water quality. Rotenone was applied to kill all fish in the lake in 1994 and 2006. But the tui chub persisted. To add to the lake’s troubles, another non-native fish, the golden shiner, has been illegally introduced. Now, the Oregon Dept. of Fish and Wildlife is trying a new approach, introducing tiger trout to prey on the invaders. Tiger trout are sterile hybrids created by crossing female brown trout (Salmo trutta) and male brook trout (Salvelinus fontinalis). The hope is that the tiger trout will prey on and hold down the populations of the unwanted invaders.
URLhttps://www.oregonlakes.org/resources/Documents/Lakewise/2016_09/2016_09.pdf