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Recent accomplishments of CDFW's scientific community


New Threat Facing Lahontan Cutthroat Trout at Independence Lake: Hybridization

Independent Lake with white capped waves from the wind. Lake with green mountains and a snow covered mountain in background
The news out of UC Davis last spring knocked California native fish biologists for a loop. Genetic testing of native Lahontan cutthroat trout from Independence Lake in the Tahoe National Forest near Truckee found evidence of hybridization with non-native rainbow trout. To understand the magnitude of that news you have to understand that Independence Lake is the only lake in California – and just one of two lakes in the world – to support a self-sustaining lake population of Lahontan cutthroat trout, a trout native to the eastern Sierra range and the Lahontan basin of Nevada.

CDFW Biologists Confirm Green Sturgeon Spawn in Yuba River

Underwater photo of a green sturgeon swimming along rocky river bottom.
CDFW biologists have been taking a new approach to looking at reproduction in one of the oldest fish species in existence. Green sturgeon, which are listed as threatened under the Federal Endangered Species Act, are in effect a living fossil, having swam in both the fresh and ocean waters from California to Alaska for more than 200 million years.