Larry Brown (Former Employee)

The California Water Science Center's Aquatic Ecology Group is making great strides in research and reporting.

Prior to 2000, the four most abundant resident pelagic fishes in the study area included two native species, delta smelt (Hypomesus transpacificus) a federal listed endangered species, and longfin smelt (Spirinchus thaleicthys) a state listed endangered species, and two introduced species, threadfin shad (Dorosoma petenense) and age-0 striped bass (Morone saxatilis).

The State Water Resources Control Board (SWRCB) of California has initiated a process to develop biological objectives for wadeable freshwater streams and rivers for the entire state.

Sources and fate of various forms of organic carbon in the Sacramento-San Joaquin Delta (Delta) and San Joaquin River watershed are of concern because of the importance of identifying the sources of carbon contributing to the oxygen depletion zone on the San Joaquin River near the city of Stockton, the need to understand the causes of the low primary and secondary production in the Delta, and the...

The State Water Resources Control Board (SWRCB) of California has initiated a process to develop numerical biological objectives for wadeable freshwater streams and rivers for the entire state. Use of biological endpoints for regulatory or compliance purposes requires the ability to relate specific stressors to key biological metrics and to use this understanding to influence management actions...

The project focuses on the assessment of aquatic biology, habitat, and water quality conditions of the major WHIS watersheds

Scientists develop metrics of expected hydrological conditions at ungaged sites throughout Callifornia

The California Water Science Center's "SmeltCam" helps describe processes influencing Delta Smelt distribution and movement.

California Water Science Center scientists further research on two native fish species.

USGS scientists develop spatially explicit ecosystem model to explore changes pelagic fish species population and distribution in the Sacramento-San Joaquin Delta and Suisun Bay.

Researachers study differences of tidal marsh restoration efforts throughout Bay-Delta ecosystem.