Wildlife:

San Francisco Chronicle Late Edition - - SPORTING GREEN - By Tom Stien­stra

Vast ma­jor­ity of 710,000 salmon and trout sur­vive fires.

The vast ma­jor­ity of 710,000 salmon and trout — in­clud­ing the state fish, the golden trout — and 100,000 eggs at two state hatch­eries sur­vived this week’s wild­fires in Sonoma and Napa coun­ties, ac­cord­ing to the state Depart­ment of Fish and Wildlife.

Sil­ver­ado Fish­eries Base, lo­cated in Napa along the Sil­ver­ado Trail, lost power for 24 to 48 hours, leav­ing some 200,000 fish with­out fresh water, aer­a­tion or food af­ter staff was evac­u­ated Mon­day. But an of­fi­cial said Thurs­day that only “min­i­mal losses” were in­curred.

“One fish­ery worker went back in late Wed­nes­day, es­corted by game war­dens,” said Peter Tira, a depart­ment spokesman. “Much to our sur­prise, the fish were do­ing well, the eggs do­ing well.”

Mean­while, Warm Springs Hatch­ery, down­stream of Lake Sonoma near Gey­serville, re­mained fully func­tional as of Thurs­day, even as nearby ar­eas were evac­u­ated. Tira said there are 160,000 en­dan­gered coho salmon and 350,000 steel­head at the fa­cil­ity be­ing grown for re­lease into the Rus­sian River.

“It’s a very im­por­tant hatch­ery,” Tira said. “The folks are there right now, and it’s up and run­ning.”

At Sil­ver­ado, power was re­stored by Thurs­day, and Tira said work­ers were ea­ger to re­turn to their posts and take care of the fish they are rais­ing, though they are un­der evac­u­a­tion standby alerts.

The Sil­ver­ado hatch­ery is home to about 200,000 golden trout. The gold­ens are very small at this point in the sea­son, about 2 inches, Tira said, a crit­i­cal stage of their lives as they are grown out over the win­ter to be stocked in high-el­e­va­tion lakes.

Work­ers at the site also were cul­ti­vat­ing 100,000 eggs, all the Chi­nook salmon and koka­nee salmon to be hatched and grown in Cal­i­for­nia for stock­ing at the states reser­voirs. They won’t know the full ex­tent of sur­vival rates un­til the eggs start hatch­ing.

“We’re told the eggs look pretty good,” Tira said. “There’ll be some loss, but to put this in per­spec­tive against the loss in the re­gion, they’re happy with what they found.”

The fa­cil­ity also grows out rain­bow trout for stock­ing at Bay Area lakes. The eggs for hatch­ing had yet to ar­rive when the fires thun­dered through the val­ley, Tira said.

Tom Stien­stra is The San Fran­cisco Chron­i­cle’s out­doors writer. Email: tstien­stra@ sfchron­i­cle.com Twit­ter: @Ste­in­straTom

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