California Department of Fish and Wildlife Adult Striped Bass Study, Sacramento-San Joaquin Watershed, California, 1969-2022
The Adult Striped Bass Study was operated by the California Department of Fish and Wildlife (previous Department of Fish and Game) between 1969 and 2022. The objective of this study was to generate estimates of adult striped bass harvest and abundance for use in managing the striped bass recreational fishery and tracking impacts of water management on the striped bass population. Striped bass and other species were captured using 20' length by 10' diameter fyke traps and 600' length by 21' depth surface-drift style gillnets with stretched mesh measurements of 4", 4.5", 5", and 5.5". The survey typically operated between April and June, with fyke traps deployed in the Sacramento River and gillnets deployed in the lower Sacramento and San Joaquin Rivers. A portion of adult or legal-sized striped bass were tagged with external 1/2" Petersen-disk tags for use in mark-recapture analyses. All external tags were individually coded, and a subset were assigned a reward value of 2 to 100 US dollars. Due to the targeted nature of this study, non-striped bass species and untagged striped bass were not recorded prior to 1996. In addition, effort data (aside from sampling day/event) are not available prior to 1994. Due to these and other limitations, the publishing authors recommend caution be exercised when attempting to quantify relative trends in abundance (i.e. CPUE) from these data. ## 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: https://portal.edirepository.org/nis/metadataviewer?packageid=edi.1551.1&key=vqSpNwnbe91Bi8trB5RY25CoPD4 Access requirements, permissions, and authorization policies for resources hosted by EDI are established and managed independently of the CNRA Open Data Platform.
Data files
Supporting files
| Data title and description | Access data | File details | Last updated |
|---|---|---|---|
Catch Catch data from the Adult Striped Bass Study. These data include all recorded incidences of striped bass and non-striped bass catch; however, bycatch species were not recorded until 1996 and are unavailable after 2019. Additionally, data on striped bass that were not tagged is unavailable prior to 1996. Given these issues, the absolute catch of striped bass or any other species is not comparable between pre- and post-1996 survey periods. | CSV (EXTERNAL DOWNLOAD) | 09/25/26 | |
Sampling Event A data table representing each sampling day/event of the Adult Striped Bass Study. This includes days where fyke nets were checked, as well as separate rows for each boat fishing gillnets on a given day. While these data do provide some metric of effort, sampling days/events are not effort standardized and may be misleading if using to calculate catch per unit effort. | CSV (EXTERNAL DOWNLOAD) | 09/25/26 | |
Effort Effort data from the Adults Striped Bass Study. Effort is calculated as the sum of time fished (in hours) for each gear type for each sampled date. Effort was aggregated in this way (as opposed to time fished per trap/netset) because a substantial number of catch records did not include which netset or trap number that they came from. These data are only available between 1996 and 2019. | CSV (EXTERNAL DOWNLOAD) | 09/25/26 | |
Provenance Metadata This method step describes provenance-based metadata as specified in the LTER EML Best Practices. This provenance metadata does not contain entity specific information. | HTML | 09/25/26 | |
Full Metadata A link to the original metadata web page on the EDI Portal | HTML | 09/25/26 | |
Dataset Quality Report A link to the EDI Quality Metadata Page | HTML | 09/25/26 |