Larval fishes were collected using three conical plankton nets fished simultaneously on the lower San Joaquin and Sacramento rivers, in 2000 and 2001. Dataset includes larval fish catch and length data, and water temperature and conductivity data. The study was designed to target larval Delta Smelt to address questions regarding their vertical distribution in the water column as related to tidal stage and diel period. This data and metadata were submitted by California Department of Fish and Wildlife (CDFW) Staff though the Data Management Plan (DMP) framework with the id: DMP000387. For more information, please visit https://wildlife.ca.gov/Data/Sci-Data.

This dataset includes field data for fishes sampled using gill nets during daylight hours in the Northern Sacramento-San Joaquin Delta, California, USA. This data release includes all measured environmental parameters and fish taxa included in the analysis. First posted - August 19, 2019 (available from author) Revised - December 18, 2019 (version 1.1)

This dataset includes field data for fishes sampled using gill nets during daylight hours in the Northern Sacramento-San Joaquin Delta, California, USA. This data release includes all measured environmental parameters and fish taxa included in the analysis. First posted - August 19, 2019 (available from author) Revised - December 18, 2019 (version 1.1)

This data set includes count, location, and ancillary habitat data for fishes sampled in adjacent reaches of Georgiana Slough, Sacramento River, and Steamboat Slough in the northern Sacramento-San Joaquin Delta. It also includes data on the stomach contents of selected individual black basses (Micropterus). Fishes were sampled by boat electrofishing from approximately January-May, 2020-2022, plus gillnetting in 2020. Samples were collected under a stratified random sampling design. Gillnetting involved short duration (~60 minute) sets of monofilament experimental gill nets. Boat electrofishing involved either single or repeated passes along an individual 300 m shoreline transect. Stomach contents data are from fishes that were frozen whole immediately upon collection and later processed in a laboratory.

This data set includes count, location, and ancillary habitat data for fishes sampled in adjacent reaches of Georgiana Slough, Sacramento River, and Steamboat Slough in the northern Sacramento-San Joaquin Delta. It also includes data on the stomach contents of selected individual black basses (Micropterus). Fishes were sampled by boat electrofishing from approximately January-May, 2020-2022, plus gillnetting in 2020. Samples were collected under a stratified random sampling design. Gillnetting involved short duration (~60 minute) sets of monofilament experimental gill nets. Boat electrofishing involved either single or repeated passes along an individual 300 m shoreline transect. Stomach contents data are from fishes that were frozen whole immediately upon collection and later processed in a laboratory.

This dataset includes field data for fishes sampled using mid-water trawls, otter trawls, and the SmeltCam during day and night in the Napa River, San Pablo Bay, and Suisun Bay, California, USA. This data release includes all measured environmental parameters and fish taxa included in the analysis. First release 20 December 2018 Revised 20 May 2019 Revised 22 June 2020 Revised 12 Dec 2020

This dataset includes field data for fishes sampled using mid-water trawls, otter trawls, and the SmeltCam during day and night in the Napa River, San Pablo Bay, and Suisun Bay, California, USA. This data release includes all measured environmental parameters and fish taxa included in the analysis. First release 20 December 2018 Revised 20 May 2019 Revised 22 June 2020 Revised 12 Dec 2020

The Central Valley Angler Survey, or CVAS, monitors sport fisheries in the Sacramento River system, from the Carquinez Strait to Keswick Dam near Redding, and on the lower Mokelumne, Yuba, Calaveras, American, and Feather rivers. CVAS was a year-round survey from 1991-1994, 1998-2002, and 2006-2016, and included the Yuba and Calaveras rivers during portions of those periods. During fiscal years (FY) 2017-2020, CVAS was scaled back to a 5-1/2 month survey, focused on the Chinook Salmon sport fishery from July 16 through December 31, but resumed year-round surveying beginning FY 2021. Data are collected to estimate angler effort, catch, and harvest of key species using expansions of spatially and temporally stratified data. Data collected from 1991 through 2016 were used to generate estimates of fishing effort, catch, and harvest of Chinook Salmon, steelhead trout, Rainbow Trout, White Sturgeon, Sacramento Splittail (2007-2016), Striped Bass, and American Shad. During fiscal years 2017-2020, CVAS focused only on generating estimates of fishing effort, catch, and harvest of Chinook Salmon in support of the West Coast Chinook Salmon management process. Data collected are based on eight survey runs per month in each of 24-27 survey sections that cover the entire survey area. Data include counts of boats and angling parties in each survey section to estimate fishing effort on a daily timestep. Data are also collected during angler interviews and include information about individual angler effort, and biological data on the catch. Heads are collected from Chinook Salmon that possess a clipped adipose fin to recover coded-wire tags that provide information about the hatchery origin of the fish. Biological information collected on the catch of anglers encountered by survey staff. Data includes location, species, length, weight, any external markings or tags observed, scale sample collection information, and sex of fish. This data and metadata were submitted by California Department of Fish and Wildlife (CDFW) Staff though the Data Management Plan (DMP) framework with the id: DMP000421. For more information, please visit https://wildlife.ca.gov/Data/Sci-Data.

Field data for fishes sampled using bottom gill nets and otter trawls during daylight hours in the northern part of the Sacramento-San Joaquin Delta, California, USA. Two adjacent tidal wetlands were targeted for sampling: Little Holland Tract and Liberty Island Conservation Bank

Field data for fishes sampled using bottom gill nets and otter trawls during daylight hours in the northern part of the Sacramento-San Joaquin Delta, California, USA. Two adjacent tidal wetlands were targeted for sampling: Little Holland Tract and Liberty Island Conservation Bank