Delta Juvenile Fish Monitoring Program

Returning from gathering delta smelt data, Steve Martarano USFWS

Small craft operator Ryan Kneifel (left) and fisheries
biolgical science technician Austin Demarest (right) return

from gathering data on Delta smelt, March 30, 2017.
Credit: Steve Martarano USFWS.

The Delta Juvenile Fish Monitoring Program (DJFMP) was established in the late 1970s to monitor juvenile salmon abundance in the San Francisco Bay-Delta through a combination of beach seines and trawling. Since then, the DJFMP has expanded its objective and sampling effort. The most significant of which occurred in 2016, when the Enhanced Delta Smelt Monitoring Program (EDSM) was initiated as part of DJFMP. The goal of EDSM is to provide accurate and high spatiotemporal resolution data on the endangered Delta Smelt. Today, the DJFMP continues to document the relative abundance, distribution, and survival of juvenile salmonids and other co-occurring fishes in the lower Sacramento and San Joaquin rivers, Delta, and San Francisco Bay for the protection, recovery and management of naturally produced salmonids and other native species in the Central Valley of California.

Monitoring Data

All monitoring data are collected by Lodi Fish & Wildlife Office. Daily and weekly summary reports for the Enhanced Delta Smelt Monitoring Program are available through the links below. Raw preliminary data files from the Enhanced Delta Smelt Monitoring Program are also available in the links below and are updated periodically. Some of the more common data requests, such as Chinook Salmon (CHN) and Pelagic Organism Decline (POD) species (i.e., Delta Smelt, Longfin Smelt, Threadfin Shad, and Striped Bass) catch data by survey as well as the Chipps Island survival calculations, have also been compiled and are shown in the table below. Please note that all data files linked to in the table below are preliminary and are subject to revision and correction.

If you would like additional information on any data found on this website or want to request specific data or format, please contact Jonathan Speegle (jonathan_speegle@fws.gov; 209-334-2968 ext. 322) for DJFMP data and Catherine Johnston (catherine_johnston@fws.gov; 209-329-8029) for EDSM data. Custom data requests will be handled as soon as possible; however, response time may be delayed under certain circumstances. We encourage users to contact the data managers to discuss what dataset is best suited to your needs.

Complete data files that have undergone final quality checks for DJFMP and EDSM are available on the Environmental Data Initiative Data Portal. Type "DJFMP" or "EDSM" into the search bar to access the data sets and accompanying program metadata. These files are updated periodically as final Quality Assurance/Quality Control measures are completed.

Some of the more common data requests, as well as the Chipps Island survival calculations, have been compiled and are shown in the table below. Please note these data are preliminary and are subject to revision and correction.

Monitoring Data
File
Size
File Description Date
Updated
Format
772.5 KB Metadata 2/24/2020 .doc
97.6 KB Enhanced Delta Smelt Monitoring Daily Report This link takes you to our new file sharing folder for current daily summaries. See featured story in sidebar. (*Note: results are preliminary and are subject to correction and revision.) Daily by close of business .csv
208 KB DatCall (*Note: DatCall is subject to correction and revision.) Updated weekly .csv
2.0 MB Enhanced Delta Smelt Monitoring Report (Weekly Summary)This link takes you to our new file sharing folder for current year weekly summaries. Past summaries are available in our archive located in the "weekly Summary" sidebar. (*Note: results are preliminary and are subject to correction and revision.) Updated weekly on Friday .pdf
9 MB Enhanced Delta Smelt Monitoring - Kodiak trawls data 2/21/2020 .csv
2.8 MB Enhanced Delta Smelt Monitoring - 20 mm trawls data 2/21/2020 .csv
7.9 MB Enhanced Delta Smelt Trawl CHN and POD Species 2016-Present Updated monthly .csv
1.4 MB Beach seines CHN-POD species 1976-2011 02/24/2020 .csv
4.1 MB Beach seines CHN-POD species 2012-Present Updated monthly .csv
2.3 MB Chipps Island trawls CHN-POD species 1976-2011 07/15/2020 .csv
6.6 MB Chipps Island trawls CHN-POD species 2012-Present Updated monthly .csv
799.6 KB Chipps Island Survival Table 1976-1992 02/24/2020 .csv
487.6 KB Chipps Island survival table 1993-Present 02/24/2020 .csv
5.5 MB Coded Wire Tag Catches 1978-2011 02/24/2020 .csv
1.9 MB Coded Wire Tag Catches 2012-Present 02/24/2020 .csv
500 KB Early warning survey trawls CHN & POD Species 2012-2016 02/24/2020 .csv
1.1 MB Mossdale trawls CHN-POD species 1994-2011 02/24/2020 .csv
4.2 MB Mossdale trawls CHN-POD species 2012-Present Updated monthly .csv
11.5 MB Sacramento trawls CHN-POD species 1988-2011 02/24/2020 .csv
4 MB Sacramento trawls CHN-POD species 2012-Present Updated monthly .csv
440.3 KB Sherwood Harbor Survival Table 1993-Present 02/24/2020 .csv

The POD (Pelagic Organism Decline) species are: Chinook salmon, Oncorhynchus tshawytscha (CHN), rainbow trout, Oncorhynchus mykiss (RBT), striped bass, Morone saxatilis (STB), threadfin shad, Dorosoma petenense (TFS), longfin smelt, Spirinchus thaleichthys (LFS), and Delta smelt, Hypomesus transpacificus (DSM).