DART Columbia Basin ESU & DPS Smolt-to-Adult Return (SAR) Estimates

Data Courtesy of Pacific States Marine Fisheries Commission

Columbia Basin ESU & DPS Passage Queries

Graphics&Text Quick Look Observation Detail Summary & Migration Timing Component Stocks Mean Travel Times Historical Run Timing SAR Estimates

Select SAR Category, ESU/DPS, Rear Type


Select Adult Detections

Year is the difference in calendar year between juvenile detection and adult detection at the locations selected. For example, 0-Year are adult detections within the same calendar year as juvenile detection.

Set Annual Summary Table Group Type


This is a complex report and may take 1-2 minutes to complete.

Methods

  • A population of fish for analysis is defined by query selections for Juvenile Detection Site, Adult Detection Site, Include/Exclude Transportation, ESU/DPS population, Rear Type, Include/Exclude Adult Detections. For this query-based population, SAR Estimates are pooled by juvenile detection year, where:
    • poolSAR = adultCount / juvCount
    • varSAR = (poolSAR*(1-poolSAR)) / juvCount
    • se = sqrt(varSAR)
    • upper95CI = poolSAR + (se * 1.96)
    • lower95CI = poolSAR - (se * 1.96)
  • For adult detections, n-Year is the difference in calendar years between juvenile detection and adult detection at the locations selected. For example, 0-Year are adult detections within the same calendar year as juvenile detection.
  • We update the SAR input juvenile (fish) files for all years 2002-present on a weekly basis. The PTAGIS datasets are dynamic; release information for historical years may be updated with the primary source at any time. DART executes multiple processes to maintain synchronization with PTAGIS (primary source).
  • The adult detections are updated daily and up-to-date through yesterday.

Sample Output

Please refer to the PIT Tag and ESU Metadata & Glossary for more information about pit tag data in the DART database.