Feminized Fish and the Power of Pollution

Pollution in the environment can take many forms, from physical trash to invisible chemicals. Once it enters a waterway, chemical pollution can spread over great distances and Read More…

Geeks rule

One study on coho salmon found that 75% of jacks passed on their genes, whereas only 58% of older, larger males were successful at reproducing. During mating, Read More…

Highlights from Salmon Festival 2009

This last weekend was the first annual Stanislaus River Salmon Festival and it was a huge success! Thank-you to everyone who helped make is such a great Read More…

Sharp bite

Pictured here is an adult male Chinook salmon flashing his sharp teeth while swimming next to an adult female. Although for most of their lives males and Read More…

Feed me!

At first glance, this small rainbow trout looks a little out of place hanging out with adult spawning Chinook. The trout can be seen staying close to Read More…

Stanislaus River Salmon Festival Video

Saturday (November 7) is the first ever Stanislaus River Salmon Festival.The event is intended to celebrate the local salmon fishery, as well as educate and inspire the Read More…

Bi-colored chinook salmon

During almost 20 years of fish research, we have encountered a lot of interesting looking fish species, odd behaviors, and have observed a variety of injuries, such Read More…

No bankers hours here

Fishery biologists often work odd hours, as is the case with this reservoir fish population assessment. Many fish species are more active during dawn and dusk periods, Read More…