Current and Historical Delta Smelt Surveys Query

Data Courtesy of California Department of Fish & Wildlife and USFWS Lodi Office

Smelt Queries

Select Output Format

HTML Table with CSV File CSV Only

Select Species, Stratum, Survey

Single year in brackets indicidates the earliest year of data. Year range in brackets indicates the available data range for a non-active survey.
Most surveys are updated annually and do not conduct sampling year-round.

Set Date Range

Start Date End Date

Set Forklength Type

Batch Forklengths Individual Forklengths

Batch forklength reports min, max, and average lengths (where available) of fish measured in sample.
Individual forklengths is a subset of Batch and only reports individual fish measured in sample.

Generate Query Result Link Only

Check box and click "Submit Query" button to generate data link for querying results directly from scripts and automated processes.

Query Notes

SacPAS presents historical and current smelt sampling aggregated across numerous surveys based on the current EDSM strata boundaries to illustrate distribution and abundance. SacPAS aggregates multiple sampling efforts with publicly available data and methods, combining their results into a single table for generating displays and analysis.

Delta Smelt Metadata