These Fish Are At The Heart Of California’s Water Debate. But Extinction Could Be Close

As a young biologist in the 1970s, Peter Moyle remembers towing nets behind boats in the Sacramento-San Joaquin Delta and catching 50 to 100 translucent, finger-length smelt in a matter of minutes. Moyle doesn’t see those days coming back. “I think extinction is imminent the way things are going,” said Moyle, a prominent UC Davis fisheries biologist. State biologists have found hardly any Delta smelt in their sampling nets in the past two years. Consecutive surveys in late April and early May found no smelt at all. Those results don’t mean the smelt have completely vanished.