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_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
identifier FWS_ServCat_142804
issued 2021-09-13
landingPage https://ecos.fws.gov/ServCat/Reference/Profile/142804
modified 2021-09-13
old-spatial -121.246788,38.1242447,-121.246223,38.1246071
programCode {010:094,010:028}
publisher Fish and Wildlife Service
references {https://ecos.fws.gov/ServCat/Reference/Profile/142804}
resource-type Dataset
source_datajson_identifier true
source_hash cf924cb1848b93f5992682aac885e891570c2fec
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]]]}
temporal 2002-01-01/2019-01-01
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
  • water-quality
isopen False
license_id notspecified
license_title License not specified
maintainer Todd Sutherland
maintainer_email todd_sutherland@fws.gov
metadata_created 2025-11-19T17:14:33.931998
metadata_modified 2025-11-19T17:14:33.932004
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