For a small fish only found in the San Francisco Estuary, the delta smelt has caused a lot of controversy over the years.

The elevation changes may seem small — amounting to fractions of inches per year — but they can increase or decrease local ...

San Francisco State University is preparing to close its Estuary and Ocean Science Center, citing financial challenges.

San Francisco Bay’s only marine laboratory, an important site of climate change research, will close due to lack of funding, ...

An atmospheric river brought additional rain, strong winds, and flooding to the Bay Area Tuesday, with an increasing chance ...

There is a frost advisory in effect from 1 a.m. to 9 a.m. Sunday from the Marin coast to the Big Sur coast and Southern Monterey Bay. A freeze warning is in effect from 1 a.m. to 9 a.m. Sunday for ...

According to the National Weather Service, San Francisco will experience a mix of wet and dry conditions over the next seven ...

San Francisco Bay is a designated “estuary of national significance” under the federal Clean Water Act. The bay and its tributary streams, situated in an urban area with more than 7 million ...

While the longfin smelt is found in bays and estuaries from Northern California to Alaska, the Bay-Delta species is specific to the San Francisco Bay estuary and nearby ocean. It has no apparent ...

For a small fish found only in the San Francisco Estuary, the Delta smelt has caused much controversy over the years, ranging from lawsuits to executive orders. What is the history of the Delta smelt?