salmon

Scientists are seeing way more invasive walleye in the Snake River. That could mean trouble for salmon.

Salmon like water temperatures just so. Rivers can’t be too hot. But there’s one small spot along the lower Yakima River that could help.

The Yakima River has a problem with water stargrass. It’s a native plant – but it’s choking the waterway and causing problems for people and fish. Now, machines are helping beat back the plant.

Sockeye numbers are coming in stronger for the Yakima River. That’s months after construction crews in the Tri-Cities removed a land-bridge. It caused the mouth of the river to stagnate.

Washington tribes and environmental organizations sued the federal government Tuesday, arguing that recent changes to Endangered Species Act rules defy scientific research and pave the way for the destruction of important wildlife habitat.

Drastically fewer sockeye are returning to the Upper Columbia than expected. That’s why Washington isn’t allowing sockeye fishing this season there.

A new technology could be a cost effective, simple way to help salmon. The U.S. Army Corps of Engineers has installed “fish bubblers” at several dams on the Columbia and Snake rivers.

It’s been a couple of months since construction crews in the Tri-Cities removed an earthen land bridge. It blocked water at the mouth of the Yakima River. Now, people are celebrating the free flow of the river through its delta.

A federal judge in Oregon has ordered dams that operate on the Columbia and Snake rivers to generate less hydropower and allow more water to pass in an effort to keep salmon populations from dying out.

Water is now flowing past a land bridge in the Tri-Cities that slowed salmon migration for over 80 years.