Title | Diamond Lake: a new approach to restoration |
Publication Type | Journal Article |
Year of Publication | 2016 |
Authors | Carroll, Trish, and Rich Miller |
Secondary Title | Lake Wise: Newsletter from Oregon Lakes Association |
Pagination | p.3-4 |
Date Published | 2016, Sep. |
Call Number | OSU Libraries: Digital Open Access |
Keywords | Diamond Lake, North Umpqua River, Umpqua River Basin, introduced species, Tui chub = Gila bicolor, golden shiner = Notemigonus crysoleucas, tiger trout, predation, population biology |
Notes | The 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. |
URL | https://www.oregonlakes.org/resources/Documents/Lakewise/2016_09/2016_09.pdf |