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Big Creek Pit Tags

Published by Southwest Fisheries Science Center | National Oceanic and Atmospheric Administration, Department of Commerce | Metadata Last Checked: December 18, 2025 | Last Modified: 2010-01-01T00:00:00.000+00:00
The BCPITTAGS database is used to store data from an Oncorhynchus mykiss (steelhead/rainbow trout) population dynamics study in Big Creek, a coastal stream along the Big Sur coast in Monterey County, California. The Landscape Ecology team at the Fisheries Ecology Division in Santa Cruz, CA is investigating the life history of this relatively small O. mykiss population to determine its significance in the persistence of the larger South-Central California Coast Steelhead Distinct Population Segment (DPS), which includes anadromous O. mykiss populations from the Pajaro River up to (but not including) the Santa Maria River, to see how these small coastal streams with little human-related impacts may contribute to DPS viability and resiliency. The database stores data from mark-recapture surveys, fish movement data collected via instream PIT tag readers, and stream environmental data. The data will be assimilated into a stage-structured population model, where stages include life history stage and location. Movement and survival rates will be determined and analyzed using data from the stationary PIT tag readers and mobile tracking devices.

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