The Myth of the Salmon “Motels” As previously discussed in Parts 1 and 2 of this series, due to the poor intake locations of the Twin Tunnels, the unacceptably low sweeping flows past the intakes’ fish screens, and exceedingly and … Continue reading
Another biological problem with the Twin-Tunnels’ intakes: Like gigantic vacuum cleaners, the flow pulled through the river intakes will likely suck baby salmon up against the fish screens (called “impingement”). To minimize this problem, low through-screen water velocities (also called … Continue reading
The proposed “Twin-Tunnels Project” (aka “WaterFix”) would divert enormous quantities of water1 from the Sacramento River to the south Delta for export into the San Joaquin River basin and southern California. If the project is built as presently planned, it … Continue reading
In a recent post I discussed ways to improve hatchery salmon smolt survival to increase coastal and river salmon populations devastated by recent droughts. This post is a follow-up addressing how to enhance the Coleman (Battle Creek) Hatchery1 contribution. Coleman … Continue reading
One way to effectively increase the California coastal salmon population is to increase survival of Chinook salmon smolts released by the three large Sacramento Valley hatcheries. These three hatcheries produce nearly 30 million fall-run smolts a year and account for … Continue reading