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140 datasets

Recreational Angler Surveys - Lake Silverwood, San Bernardino County - 1999-2020

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 18, 2026
File types: XLSX, ZIP

Roving creel surveys using stratified random sampling to determine angler catch rates, angler satisfaction, estimated trout harvested, total pounds ha...

Surface Water - Chemistry Results

Published by: California State Water Resources Control Board
Last updated: Tuesday, April 14, 2026
File types: PDF, ZIP, CSV

This data provides results from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN) for field and lab chemi...

Surface Water - Sampling Location Information

Published by: California State Water Resources Control Board
Last updated: Tuesday, April 14, 2026
File types: PDF, CSV

Information about sampling locations for data from the [California Environmental Data Exchange Network](https://ceden.waterboards.ca.gov) (CEDEN). Thi...

Interagency Ecological Program: Fish catch and water quality data from the Sacramento River floodplain and tidal slough, collected by the Yolo Bypass Fish Monitoring Program, 1998-2023.

Published by: California Department of Water Resources
Last updated: Saturday, April 18, 2026
File types:

Largely supported by the Interagency Ecological Program (IEP), California Department of Water Resources (DWR) has operated a fish monitoring program i...

Quagga/Zebra Mussel Presence/Absence Monitoring - California - 2007-2023

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 18, 2026
File types: XLSX, ZIP

Quagga/Zebra mussel monitoring data for both uninfested and infested waterbodies throughout the state. This includes presence/absence data from plan...

General Fish Surveys - Lake Silverwood, San Bernardino County - 1999-2021

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 18, 2026
File types: XLSX, ZIP

General Fish Surveys compare trends among the fishery species in Lake Silverwood utilizing data that calculates catch per unit of effort (CPUE), relat...

Recreational Angler Surveys - Lake Perris, Riverside County - 2020-2021

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 18, 2026
File types: XLSX, ZIP

Catch per hour, target species composition, hours spent angling (overall and by species), method of angling (boat/shore), annual catch totals (overall...

2021-2022 West False River Emergency Drought Barrier water quality, flow, and fish monitoring

Published by: California Department of Water Resources
Last updated: Saturday, April 18, 2026
File types:

To manage the critically low 2021 water supply for beneficial uses, DWR installed the temporary emergency drought barrier (EDB) on West False River in...

Quagga and Zebra Mussel Infested Waters [ds2801]

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 18, 2026
File types: HTML, ARCGIS GEOSERVICES REST API, CSV, ZIP, GEOJSON, KML

Quagga (Dreissena rostriformis bugensis) and Zebra (Dreissena polymorpha) mussels are highly invasive and easily transported from one waterybody to an...

General Fish Surveys - Lake Perris, Riverside County - 1989 - 2021

Published by: California Department of Fish and Wildlife
Last updated: Saturday, April 18, 2026
File types: XLSX, ZIP

General Fish Surveys compare trends among the fishery species in Lake Perris utilizing data that calculates catch per unit of effort (CPUE), relative ...