Life-history variation is fundamental to the long-term persistence of populations and species because it ensures their ability to adapt to changing environments. Many important studies have focused on ...

California’s last wild salmon are one drought, and one more round of mismanagement, from vanishing from the state’s rivers, ...

We share the freshwater species living in Oregon’s Willamette River and describe where to find them and how they live.

The annual fall count of migrating summer chum salmon came to a close Oct. 15, with another positive sign for the species.

One of the enduring ichthyological mysteries is how migratory fish know when it is time to move from their winter to summer ...