What’s Cuing Salmon Migration Patterns?

The spring-fed water that flows through Hansen Creek in southwestern Alaska is almost always clear. Its rate and temperature stay relatively constant throughout the year. Each summer, sockeye salmon migrate through the shallow, narrow creek bed in distinct pulses, in...

‘Scouring’ Might Damage Fernbridge, Reports Caltrans

Information from Caltrans: This winter’s powerful and near-constant storms took their toll on roads across our District. As a result, many of our area’s rivers flooded – in one case, the Eel River closed Route 211 at Fernbridge. The high, swiftly-moving floodwaters...

Worst Salmon Season in Eight Years Projected in California

California fishermen are bracing for the worst salmon season in eight years, one so grim that many will likely sit the season out completely. Years of drought and unfavorably warm ocean conditions that existed when this year’s potential crop of king salmon was young...

Risks Soar, Bills Come Due as 20th-Century Dams Crumble

First part of a series. For nearly 50 years, Oroville Dam has been the linchpin of a sprawling state plumbing system that draws water from wet Northern California to 25 million people and thousands of acres of farmland in the arid south. That changed Feb. 7 when a...

What do Stream Fish do During Flood Flows?

My local stream, Putah Creek, looks like a river these days.  Water is pouring down the Glory Hole of Lake Berryessa and rushing in muddy turmoil from the ‘dry’ creeks that are its main tributaries.   The creek’s deeply incised and leveed channel is containing the...