Interagency Ecological Program and US Fish and Wildlife Service: Juvenile/Larval Fish and Zooplankton collections at Liberty Island, California 2002-2005 & 2013-2019

The U.S. Fish and Wildlife Service (USFWS) Lodi Fish and Wildlife Office (LFWO) Delta Juvenile Fish Monitoring Program (DJFMP) has intermittently sampled Liberty Island with various equipment since 2002. Liberty Island was a reclaimed agricultural island until it flooded in 1997-1998 and we subsequently left to passively restore as a tidally influenced wetland. Larval trawls and beach were the only sampling methods used during both early (2002-2005) and late (2009-2019) sampling periods. The main purpose of the sampling was to gather information about fish presence and abundance in Liberty Island during the passive restoration, with an emphasis on reproductive and early life-stages of native species. Larval trawls, or tow nets, were used to catch larval fish in 2004-2005 and again from 2013-2019. Zooplankton nets were used 2013-2019. Water quality measurements were collected alongside each tow.

Data and Resources

Field Value
accessLevel public
bureauCode {010:18}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_@id https://ddi.doi.gov/fws-data.json
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier http://datainventory.doi.gov/id/dataset/fws-servcat-142804
issued 2021-09-13T00:00:00Z
landingPage https://iris.fws.gov/APPS/ServCat/Reference/Profile/142804
modified 2021-09-13T00:00:00Z
old-spatial -121.246788,38.1242447,-121.246223,38.1246071
programCode {010:094,010:028}
publisher U.S. Fish and Wildlife Service
resource-type Dataset
source_datajson_identifier true
source_hash 99e4947e4c6dcf050dff0a44b2b6eecfaf054689b2485b5b90f0428ba1ae5e6c
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-121.246788, 38.1242447], [-121.246788, 38.1246071], [-121.246223, 38.1246071], [-121.246223, 38.1242447], [-121.246788, 38.1242447]]]}
theme {"Tabular Dataset"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • abundance
  • aquatic-ecosystems
  • brackish-water
  • chinook-salmon
  • 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
  • interagency-ecological-program
  • invasive-species
  • largemouth-bass
  • longfin-smelt
  • mississippi-silverside
  • rivers
  • sacramento-san-joaquin-delta
  • sacramento-splittail
  • san-francisco-estuary
  • united-states-fish-and-wildlife-service
  • water-quality
isopen False
license_id notspecified
license_title License not specified
maintainer Todd Sutherland
maintainer_email todd_sutherland@fws.gov
metadata_created 2025-09-24T10:02:09.977899
metadata_modified 2025-09-24T10:02:09.977911
notes The U.S. Fish and Wildlife Service (USFWS) Lodi Fish and Wildlife Office (LFWO) Delta Juvenile Fish Monitoring Program (DJFMP) has intermittently sampled Liberty Island with various equipment since 2002. Liberty Island was a reclaimed agricultural island until it flooded in 1997-1998 and we subsequently left to passively restore as a tidally influenced wetland. Larval trawls and beach were the only sampling methods used during both early (2002-2005) and late (2009-2019) sampling periods. The main purpose of the sampling was to gather information about fish presence and abundance in Liberty Island during the passive restoration, with an emphasis on reproductive and early life-stages of native species. Larval trawls, or tow nets, were used to catch larval fish in 2004-2005 and again from 2013-2019. Zooplankton nets were used 2013-2019. Water quality measurements were collected alongside each tow.
num_resources 2
num_tags 38
title Interagency Ecological Program and US Fish and Wildlife Service: Juvenile/Larval Fish and Zooplankton collections at Liberty Island, California 2002-2005 & 2013-2019