The Parallel Evolution Puzzle

Steelhead in the Pacific Northwest show diversity in their run timing, or the timing of when the fish migrate from saltwater to freshwater. Populations of summer-run and Read More…

Fish in a dry stream

The Arroyo Seco River, a major tributary of the Salinas River on California’s central coast, could be said to be a river of multiple personalities. No dams Read More…

One fish, two forms, many questions

Genetically they are the same species, but rainbow trout and steelhead lead very different lives. These fish represent two separate life strategies of the species Oncorhynchus mykiss: Read More…

Half-pounder history

Salmonid research has an extensive history in California: studies on steelhead (Oncorhynchus mykiss) and Chinook salmon (O. tshawyscha) in Northern California rivers date back to the mid-19th Read More…

The status of steelhead

Every juvenile rainbow trout (Oncorhynchus mykiss) living in California’s Central Valley has in its genetic makeup the ability to out-migrate to the Pacific Ocean and become a Read More…

Tough choices in dry conditions

In times of extreme conditions, such as the current state of water scarcity in California, some sacrifices and tradeoffs inevitably have to be made. For example, the Read More…

Going coastal

When embarking on a new project, it’s often wise to learn from the experience of others. That’s why FISHBIO staff recently headed north among the trees of Read More…

In need of a fish ladder facelift

Many Chico residents, hoping to escape the intense summer heat of the California Central Valley, often retreat to the cool waters of Big Chico Creek in Bidwell Read More…