Interagency Ecological Program and US Fish and Wildlife Service: San Francisco Estuary Enhanced Delta Smelt Monitoring Program data, 2016-2021

The Enhanced Delta Smelt Monitoring Program (EDSM) was initiated by the U.S. Fish and Wildlife Service in 2016. EDSM focuses on providing real-time data to help managers respond to population patterns of Delta Smelt within the upper San Francisco Estuary, primarily by providing estimates of Delta Smelt distribution and abundance. The dataset can also be useful in evaluating habitat use and behavior patterns of this species and other fish species of interest. Sampling is done year round via Kodiak trawls and larval (“20-mm”) gear to sample Delta Smelt across most life stages. Sites are chosen via stratified random sampling. Over the course of a week, field crews sample between 18 and 41 random sites. A minimum of two tows are conducted at each site. All fish collected are identified (in the field when possible, in the lab for early life stages), measured, enumerated, and recorded. In addition to fish information, environmental data are collected for each sampling event. For more information: https://www.fws.gov/lodi/juvenile_fish_monitoring_program/jfmp_index.htm

Data and Resources

Field Value
accessLevel public
bureauCode {010:18}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
dataQuality true
datagov_dedupe_retained 20220721161856
identifier FWS_ServCat_142801
issued 2021-08-03
landingPage https://ecos.fws.gov/ServCat/Reference/Profile/142801
modified 2021-08-03
old-spatial {"type": "Polygon", "coordinates": [[[-121.247215, 38.1242142], [-121.247215, 38.12477], [-121.246109, 38.12477], [-121.246109, 38.1242142], [-121.247215, 38.1242142]]]}
programCode {010:094,010:028}
publisher Fish and Wildlife Service
references {https://ecos.fws.gov/ServCat/Reference/Profile/142801}
resource-type Dataset
source_datajson_identifier true
source_hash 631d9fce5c4028370b7214611e95494dbb5163a7
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-121.247215, 38.1242142], [-121.247215, 38.12477], [-121.246109, 38.12477], [-121.246109, 38.1242142], [-121.247215, 38.1242142]]]}
temporal 2016-01-01/2021-01-01
theme {"Tabular Dataset"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • abundance
  • amerigeo
  • amerigeoss
  • aquatic-ecosystems
  • brackish-water
  • chinook-salmon
  • ckan
  • delta-smelt
  • ecology
  • endangered-species
  • estuaries
  • fishes
  • freshwater
  • general-biology-at-risk-biota-te-species
  • general-biology-communities-and-ecosystems-estuary
  • general-biology-communities-and-ecosystems-ocean
  • general-biology-communities-and-ecosystems-riverine
  • general-biology-invasive-species-invasive-exotic-animals
  • general-biology-species-fishes
  • general-management-natural-resources-management-fisheries-management
  • general-management-natural-resources-management-water-management
  • general-water-hydrology-estuary
  • geo
  • geoss
  • interagency-ecological-program
  • invasive-species
  • largemouth-bass
  • longfin-smelt
  • mississippi-silverside
  • national
  • north-america
  • rivers
  • sacramento-san-joaquin-delta
  • sacramento-splittail
  • san-francisco-estuary
  • united-states
  • united-states-fish-and-wildlife-service
  • wakasagi
  • water-quality
isopen False
license_id notspecified
license_title License not specified
maintainer Todd Sutherland
maintainer_email todd_sutherland@fws.gov
metadata_created 2025-11-21T02:58:36.606607
metadata_modified 2025-11-21T02:58:36.606611
notes The Enhanced Delta Smelt Monitoring Program (EDSM) was initiated by the U.S. Fish and Wildlife Service in 2016. EDSM focuses on providing real-time data to help managers respond to population patterns of Delta Smelt within the upper San Francisco Estuary, primarily by providing estimates of Delta Smelt distribution and abundance. The dataset can also be useful in evaluating habitat use and behavior patterns of this species and other fish species of interest. Sampling is done year round via Kodiak trawls and larval (“20-mm”) gear to sample Delta Smelt across most life stages. Sites are chosen via stratified random sampling. Over the course of a week, field crews sample between 18 and 41 random sites. A minimum of two tows are conducted at each site. All fish collected are identified (in the field when possible, in the lab for early life stages), measured, enumerated, and recorded. In addition to fish information, environmental data are collected for each sampling event. For more information: https://www.fws.gov/lodi/juvenile_fish_monitoring_program/jfmp_index.htm
num_resources 2
num_tags 39
title Interagency Ecological Program and US Fish and Wildlife Service: San Francisco Estuary Enhanced Delta Smelt Monitoring Program data, 2016-2021