On Thursday, Gov. Gavin Newsom touted the “comeback” of coho salmon after state officials spotted juvenile fish in the Russian River’s upper basin — the first such sighting in more than 30 years. As the state celebrated the news, however, federal fisheries officials announced that they would not designate Chinook salmon as endangered or threatened under the Endangered Species Act, prompting disappointment from conservation groups. The two salmon species face different challenges and are at different stages of recovery, one salmon expert said. But climate change is increasingly shaping the fate of both.

Other salmon news:

• Los Angeles Times: Juvenile coho salmon found in Mendocino County creek after more than 30-year absence
• Active NorCal (Redding, Calif.): More than 10 million chinook salmon raised at Feather River Hatchery this season