Zooplankton Survey of the Northern Sacramento-San Joaquin Delta, California, 2016-2018

This data set contains information on zooplankton and associated environmental parameters for sampling conducted in California's northern Sacramento-San Joaquin Delta between May 2016 and April 2018. Macrozooplankton were sampled with horizontal tows (water surface) of a 50 cm-diameter conical plankton net that was 150cm long with 102µm mesh. Samples were preserved in the field in 10% formalin for laboratory processing that was conducted by a contractor (EcoAnalysts, Inc).

Data and Resources

Field Value
accessLevel public
bureauCode {010:12}
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
datagov_dedupe_retained 20220721212438
identifier USGS:5b8eda46e4b0702d0e7ec6ef
metadata_type geospatial
modified 20201228
old-spatial {"type": "Polygon", "coordinates": [[[-121.8260, 38.1756], [-121.8260, 38.3621], [ -121.5596, 38.3621], [ -121.5596, 38.1756], [-121.8260, 38.1756]]]}
publisher U.S. Geological Survey
publisher_hierarchy Department of the Interior > U.S. Geological Survey
resource-type Dataset
source_datajson_identifier true
source_hash 4674f6742d88d7dc7d9d5b4aef70833c9e49fa7a
source_schema_version 1.1
spatial {"type": "Polygon", "coordinates": [[[-121.8260, 38.1756], [-121.8260, 38.3621], [ -121.5596, 38.3621], [ -121.5596, 38.1756], [-121.8260, 38.1756]]]}
theme {geospatial}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • amerigeo
  • amerigeoss
  • aquatic-biology
  • biota
  • cache-slough
  • california
  • ckan
  • geo
  • geoss
  • national
  • north-america
  • sacramento-san-joaquin-delta
  • united-states
  • usgs-5b8eda46e4b0702d0e7ec6ef
  • zooplankton
isopen False
license_id notspecified
license_title License not specified
maintainer Frederick V. Feyrer
maintainer_email ffeyrer@usgs.gov
metadata_created 2025-11-21T00:22:32.368188
metadata_modified 2025-11-21T00:22:32.368192
notes This data set contains information on zooplankton and associated environmental parameters for sampling conducted in California's northern Sacramento-San Joaquin Delta between May 2016 and April 2018. Macrozooplankton were sampled with horizontal tows (water surface) of a 50 cm-diameter conical plankton net that was 150cm long with 102µm mesh. Samples were preserved in the field in 10% formalin for laboratory processing that was conducted by a contractor (EcoAnalysts, Inc).
num_resources 2
num_tags 15
title Zooplankton Survey of the Northern Sacramento-San Joaquin Delta, California, 2016-2018