Water projects necessarily have impacts on fish and other aquatic species. Water, after all, is habitat. So when a new dam or diversion is proposed, we need to find out what fish, frogs and other species will be affected, how many and how significantly. Trouble is, those questions have always been answered based on limited data.
Days before nearly 200,000 people downstream of Lake Oroville were ordered to evacuate because of problems with two spillways at the dam, there were millions of other evacuees – residents of the Feather River Fish Hatchery. … Why all the trouble for some fish? Spring-run Chinook salmon and steelhead are both listed as threatened under the Endangered Species Act.
On Monday, Sen. Dianne Feinstein, D-California, reintroduced the Santa Ana Wash Plan Land Exchange Act, a month after similar legislation was introduced in the House by Reps. Paul Cook, R-Yucca Valley, and Pete Aguilar, D-Redlands.
A year ago, politicians and experts were predicting a near-permanent statewide drought, a “new normal” desert climate. The most vivid example of how wrong they were is that California’s majestic Oroville Dam is currently in danger of spillway failure in a season of record snow and rainfall.
The U.S. Bureau of Reclamation ramped up flows on the lower Klamath River on Friday morning in an attempt to reduce the risk of threatened fish from contracting a deadly parasite as had occurred in years past. The move came just over a day after a federal judge found that the bureau’s past dam operations had caused harm to threatened juvenile Coho salmon in 2014 and 2015.
Marin Superior Court Judge Paul Haakenson Friday denied a request by the Salmon Protection and Watershed Network to halt all building along creeks and streams in San Geronimo Valley until cumulative impacts of such building have been adequately studied.
In a previous blog, we presented a Grand Scheme for habitat conservation in the North Delta Arc (the Arc). This follows up on our earlier broad vision for recreating a Delta more friendly to its native species. In this essay, we give philosophical and historical reasons to approach habitat conservation on the regional scale of the Arc, using reconciliation ecology as our guide.
A year after tens of thousands of common murres, an abundant North Pacific seabird, starved and washed ashore on beaches from California to Alaska, researchers have pinned the cause to unusually warm ocean temperatures that affected the tiny fish they eat.
A gaping hole in the spillway for the tallest dam in the United States has grown and California authorities said they expect it will continue eroding as water washes over it but the Oroville Dam and the public are safe.
Water could pour over an emergency spillway at Lake Oroville for the first time ever Saturday if the California Department of Water Resources does not ramp up discharges through the rapidly eroding main spillway, officials said Thursday.
As storm runoff poured into fast rising Lake Oroville Thursday, the state resumed releases down the reservoir’s damaged spillway, creating dramatic scenes of muddy torrents gushing over the concrete chute.
With stormwater and snowmelt pouring into the reservoir faster than expected, the operator of the crippled Oroville Dam said it was likely water would have to be released from the facility’s emergency spillway as soon as Saturday – a last-ditch alternative that officials had been hoping to avoid.
For more than two decades, water management entities in the Sacramento Valley have engaged in an aggressive effort to construct fish screens at all of the high priority diversions identified by state and federal fishery agencies.
The World Wildlife Fund on Monday called for a complete ban on fishing in the habitat of the vaquita porpoise, noting an international committee of experts has determined that fewer than 30 of the critically endangered mammals probably remain in the upper Gulf of California, the only place they live.