Above photo: TMMC-1-91, also known as ‘Ladybug’, swimming in central San Francisco Bay – pictured with the skyline of the city. This individual later died. Photographer: Josephine Slaathaug © The Marine Mammal Center. Gray whales migrate from Arctic waters full of food to the lagoons of Baja Mexico — but as the climate crisis gathers…

The Washington Department of Fish and Wildlife has undertaken emergency rule making to classify golden mussels as a Prohibited Level 1 invasive species statewide in response to the imminent threat of introduction and spread to Washington’s waters. As a Prohibited Level 1 species, live golden mussels may not be possessed or retained, introduced on or…

New evidence suggests that a disease-causing tapeworm that has been spreading across the United States and Canada has arrived in the Pacific Northwest. The tapeworm, called Echinococcus multilocularis, lives as a parasite in coyotes, foxes and other canid species and can cause severe disease if passed to domestic dogs or humans.

The number of sea lions in the Bonneville Dam tailrace has dropped in recent years, perhaps due to a persistent lethal removal program by states and tribes, but the percentage of the run of Columbia River salmon and steelhead that is devoured by sea lions has largely remained about the same.

Of the fish that had passed Bonneville Dam last spring, California and Steller sea lions consumed 3.6 percent of the spring Chinook salmon and 5.5 percent of the steelhead. Some 98 individual sea lions were responsible for this predation, according to a recently-released annual report by the U.S. Army Corps of Engineers.

Oregon Department of Fish and Wildlife staff at the Ashland Boat Inspection Station found quagga mussels on a motorboat that was being transported from Lake Havasu, Arizona into Oregon on March 21.