Aquatic Ecology
Aquatic Ecology
Acquatic Ecology research at the California Water Science Center includes the study of interacting populations of plants, animals, and microorganisms that occupy areas throughout the state. A particular focus of these efforts is to gain better understanding of the effects human activity, hydrologic extremes, and climate change have on these ecosystems.
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Role Nutrients Play in Fish Death Rates at Rodeo Lagoon
Scientists investigate excessive nutients levels in Rodeo Lagoon that are believed to be cause of dying fish
Analysis of Factors Causing Mercury Impairment in Water Bodies of the Sierra Nevada, California
The SWRCB has requested assistance from the USGS in analyzing the factors that control Hg concentrations in fish tissue in the Sierra Nevada. Specifically, the SWRCB wants to know whether Hg and (or) MeHg in bed sediment and (or) suspended sediment could be potentially useful in the future as a 303(d) listing criteria. The SWRCB has requested that the USGS perform an analysis of existing data for...
Improved Monitoring of Water Quality and Pelagic Organism Decline in the Delta with Continuous In Situ Sensor Measurements
Newly-developed, commercially-available sensors permit real-time collection of water quality data that may help identify ecosystem processes that affect the health of pelagic food webs in the Sacramento – San Joaquin Delta. In particular, the simultaneous measurement of nutrients, organic matter and algal abundance along with the basic water quality variables such as temperature and salinity -...
Application of the SmeltCam to Describe Processes Influencing Delta Smelt Distribution and Movements
The California Water Science Center's "SmeltCam" helps describe processes influencing Delta Smelt distribution and movement.
Understanding Influences on Habitat Quality for Delta Smelt and Other Imperiled Fish Populations
USGS scientists work to provide information needed to evaluate the efficacy of ongoing U.S. Burueau of Reclamation water management efforts in Bay-Delta.
Technical Support and Synthesis of Data Collected on the Health and Status of Delta Smelt
USGS scientists work to provide data to UC Davis researchers on health and growth of smelt population in Bay-Delta.
Rearing Habitats of Longfin Smelt in the Low Salinity Zone of the San Francisco Estuary
Scientists study habitats occupied by longfin smelt larvae to better understand their ecology and to inform water management operations, species management, and habitat restoration efforts.
Physical and Biological Drivers of Longfin Smelt Vertical Distribution
Research scientists study conditions that affect abundance and distributions Longfin Smelt fish population.
Pesticides Found in Amphibians from Remote Areas in California
Amphibians from remote locations in California have accumulated several current-use pesticides, including fungicides, in their bodies. A team of U.S. Geological Survey (USGS) scientists recently reported on field results in the journal Environmental Toxicology and Chemistry . Two fungicides, pyraclostrobin and tebuconazole, and the herbicide simazine were detected frequently in amphibians from all...
Exploring Drivers of Pelagic Fish Population Decline in Bay-Delta
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.