Monday, November 2, 2020Friday, October 30, 2020

In the Weeds: Invasive Aquatic Plants Can Increase Juvenile Salmon Predation Risk

For juvenile Chinook salmon (Oncorhynchus tshawytscha) migrating through the Sacramento-San Joaquin Delta, hungry non-native predatory species pose a threat to their survival. However, disentangling the effect of Read More…

Monday, December 16, 2019Wednesday, December 11, 2019

Too Hot for Company: Warm Temperatures Break up Smelt Shoals

For little fish on the menu of countless hungry predators, staying alive often means seeking refuge in the company of their own kind. When prey species form Read More…

Friday, November 22, 2019Thursday, October 31, 2019

Film Friday: Trout Waiting for Salmon Eggs

https://youtu.be/NbuEZKAUvoU Salmon migrate hundreds of miles just to lay their eggs, but some of the eggs never stand a chance. Hungry mouths, like the trout in this Read More…

Wednesday, April 3, 2019Tuesday, April 2, 2019

What’s for Dinner? Dissecting a Mystery

The unsettling pile of bones pictured above may look like the remains of victims snatched up by a cave-dwelling ogre, but the zoomed-in image actually shows the Read More…

Monday, August 13, 2018Thursday, August 9, 2018

Fish-friendly Flood-control: Improving Salmon Habitat at Sacramento Levees

It’s no secret that most of California’s waterways have been extensively modified to safeguard valuable agricultural lands, public infrastructure, and private property. In the Sacramento Valley, the Read More…

Friday, June 29, 2018Friday, June 15, 2018

Film Friday: Pikeminnow Derby

https://www.youtube.com/watch?v=m8utFXTEjUg&t= We know some of you might be gearing up for fishing over the holiday next week, so today's Film Friday features a Pikeminnow Derby held last Read More…

Monday, June 25, 2018Thursday, June 21, 2018

Large Salmon Getting Smaller, Old Salmon Getting Younger

Those who fished for salmon decades ago often lament the bygone “good old days” of abundant, large fish. As it turns out, there is some truth to Read More…

Monday, May 28, 2018Friday, May 25, 2018

Sheephead, Sea Urchins & Kelp: A Dynamic Food Chain

In ocean food webs, many organisms directly and indirectly rely on each other to bring balance to the surrounding environment. Food webs in ecosystems like kelp forests Read More…

Monday, January 29, 2018Monday, January 29, 2018

Birds of a Feather Prey Together

Fish are food for a wide array of species in rivers and lakes. As noted in our testimony before members of Congress, predation by nonnative fishes is Read More…

Monday, July 10, 2017Friday, July 7, 2017

Fishing for Pikeminnow: A Native Predator Removal Derby

Predation is a normal component of a healthy ecosystem, and in California’s rivers, Chinook salmon evolved alongside a suite of native predators that include birds, mammals, and Read More…