Age-0 fish abundances and putative environmental drivers for the Sacramento-San Joaquin Delta, California, 1980 to 2020.

Data on fall (September-December) age-0 abundances of a suite of relatively abundant/common fishes and a suite of likely environmental driver variables. All data are derived from publicly available sources as cited below, except for determination of age-0 maximum length thresholds, which were derived from examination of length-frequency histograms for fall months. Fish data are from https://doi.org/10.6073/pasta/0cdf7e5e954be1798ab9bf4f23816e83. Water temperature, chlorophyll-a, and Secchi depth data are from https://doi.org/10.6073/pasta/42b3d889ffa056030f953aed85b5621e. Zooplankton abundance data are from (https://doi.org/10.6073/pasta/89dbadd9d9dbdfc804b160c81633db0d). Sea surface temperature data are from (https://doi.org/10.6075/J0S75GHD). Ocean upwelling data are from (https://oceanview.pfeg.noaa.gov/products/upwelling/dnld). Flows data are from the DAYFLOW model (https://data.cnra.ca.gov/dataset/dayflow). Environmental driver data are annualized by water year and, where appropriate, aggregated to a single, putatively spatially representative time series.