Text · dataset · 2026
Environmental and biological data associated with captive-reared Delta Smelt Study, Sacramento-San Joaquin Delta, CA, January-March 2019
Listed in California Open Data
The endangered Delta Smelt Hypomesus transpacificus is an osmerid fish endemic to the upper San Francisco Estuary.
Description
A captive breeding program for the species led by the Fish Culture and Conservation Laboratory (FCCL), University of California, Davis, began in 1996 to create a refuge population. In order to better understand how captive Delta Smelt would fare in conditions outside of the hatchery, we placed captive-reared fish in enclosures in the Sacramento San-Joaquin Delta, and evaluated their ability to survive, feed, and maintain condition.
Fish were acclimated in the hatchery at FCCL, tagged, swabbed, weighed, measured, and transferred to enclosures in the field. There were three types of enclosures (n=2 for each type), varying in mesh size and wrap condition. In January 2019, 384 adult Delta Smelt (243 days post hatch) were transferred to enclosures in Rio Vista.
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In February 2019, 360 adult Delta Smelt (278 days post hatch) were transferred to enclosures in the Deepwater Shipping Channel. For each deployment, fish remained in enclosures for approximately one month, then were retrieved from enclosures, euthanized, identified, weighed and measured. A subset were also analyzed for diet contents.
During the one-month long deployments, cages were checked for biofouling, damage, and dead fish, and water quality measurements and zooplankton samples were collected. ## About This Federated Record This CNRA Open Data Platform record is based on metadata federated from the Environmental Data Initiative (EDI) Data Portal. Its purpose is to improve the discoverability of the data package through the CNRA Open Data Platform.
The EDI Data Portal is the repository of record for this data package. Metadata, resource links, and supporting information displayed here may not reflect the latest updates available in EDI. Resources shown here—including Full Metadata, Provenance, and Data Quality Report—are provided to help users understand and evaluate the data package and the supporting information available from EDI.
For the current data package, citation, DOI, data files, metadata, provenance, data quality documentation, revision history, and other supporting information, refer to the EDI data package landing page: portal.edirepository.org/nis/metadataviewer?packageid=edi.1248.3&key=vqSpNwnbe91Bi8trB5RY25CoPD4 Access requirements, permissions, and authorization policies for resources hosted by EDI are established and managed independently of the CNRA Open Data Platform.
Links
Get the data
- Publisher page portal.edirepository.org/nis/metadataviewer?packageid=edi.1248.3&key=vqSpNwnbe91Bi8trB5… ↗
documentation · download · from data ca gov
- Delta Smelt Diet pasta.lternet.edu/package/data/eml/edi/1248/3/0d7992bad631d84591a6615bebd2fefd ↗
download · from data ca gov
- Delta Smelt Growth and Condition Factor pasta.lternet.edu/package/data/eml/edi/1248/3/aee7afe67fd82fcfe00987f461e4f027 ↗
download · from data ca gov
- Delta Smelt Survival pasta.lternet.edu/package/data/eml/edi/1248/3/dd08f97b56f6090c8f83b4bd5bbe94f0 ↗
download · from data ca gov
- Zooplankton Data pasta.lternet.edu/package/data/eml/edi/1248/3/f0a145a59e6659c170988fa6afa3f232 ↗
download · from data ca gov
- Velocity Data pasta.lternet.edu/package/data/eml/edi/1248/3/54eeb5d85670a43a7bef2bbf43099d14 ↗
download · from data ca gov
- Deployment and Retrieval Information pasta.lternet.edu/package/data/eml/edi/1248/3/7282cd87e0eab184ca6d8e92de80d799 ↗
download · from data ca gov
- Field Data pasta.lternet.edu/package/data/eml/edi/1248/3/0829a3b066fdf1b5cf105a55ba7f2f68 ↗
download · from data ca gov
- Stations pasta.lternet.edu/package/data/eml/edi/1248/3/89146f1382d7dfa3bbf3e4b1554eb5cc ↗
download · from data ca gov
- Metadata for Smelt pasta.lternet.edu/package/data/eml/edi/1248/3/0571632e4913d9ecd362a212369f3f79 ↗
download · from data ca gov
- Provenance Metadata portal.edirepository.org/nis/provenanceGenerator?packageid=edi.1248.3&key=vqSpNwnbe91Bi… ↗
download · from data ca gov
- Dataset Quality Report portal.edirepository.org/nis/reportviewer?packageid=edi.1248.3&key=vqSpNwnbe91Bi8trB5RY… ↗
download · from data ca gov
Where it is published
- California Open Data dataset page data.ca.gov/dataset/environmental-and-biological-data-associated-with-capt… ↗
landing page · from data ca gov
Catalogue records · 1
- CKAN API data.ca.gov/api/3/action/package_show?id=8eb8e1b8-c29f-41cc-8987-8fdf9ee36… ↗
metadata API · from data ca gov
Topics
- Stated by source
- Natural Resources · Water
- From keywords
- Earth & Environmental Science
Provenance · 1 source records, 10 field assertions
| Source | Key | Last seen | Raw |
|---|---|---|---|
| California Open Data | 8eb8e1b8-c29f-41cc-8987-8fdf9ee36204 | 10 d ago | JSON v1 |
| Field | Assertion | Extractor | Evidence |
|---|---|---|---|
| access_level | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[field].local:field:earth-environmental | mapping · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:natural-resources | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| concepts[topic].ckan_group:data_ca_gov:water | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| created_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| description | source · data ca gov | connector:data_ca_gov@1.0.0 | /notes |
| license_text | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| publication_date | source · data ca gov | connector:data_ca_gov@1.0.0 | |
| title | source · data ca gov | connector:data_ca_gov@1.0.0 | /title |
| updated_date | source · data ca gov | connector:data_ca_gov@1.0.0 |