IDFG does redd counts in the one MaSA. There are • Spatial distribution no MSA’s. Age and other diversity data available for 2001-2003, Sample size from carcass Genetic baseline needs to be Implement a 5-year rotating • • • • Species diversity 2008, 2012 from INPMEP. surveys small. maintained at regular intervals panel for baseline genetic samples. Bear Valley Population IDFG does index aerial redd counts in Bear Valley Accuracy of GSI to identify this Need more accurate and precise adult SBT propose a DIDSON in Bear • • • • and Elk creeks. Data available since 1957. population needs to be determined abundance data (increased redd Valley Creek to evaluate adult SBT does multi pass redd counts in Bear Valley surveys, weirs, GSI). escapement. • Creek for the ISS project, ends in 2014. Adult abundance Natural-origin Snake River Chinook abundance • estimated at LGR by IDFG using GSI beginning 2008. Age composition and sex ratios also determined Bear Valley Creek is a control stream for the ISS • study. Sex ratio, hatchery proportion, length, percent Additional sampling of SBT Need more accurate and precise age • • • spawned, DNA, age structure are obtained from anglers to improve estimates of structure data. carcasses surveyed during SBT ground redd count tribal harvest surveys Hatchery fish are not stocked within population • Adult productivity boundaries. No recreational fishing for Chinook allowed within • population boundaries. SBT conducts tribal fisheries. • SBT monitors and estimates tribal harvest. • NMFS PIT-tags juvenile Chinook salmon during the SBT propose to operate a screw • • Juvenile summer in Bear Valley and Elk creeks. Data used to trap in Bear Valley Creek. productivity determine run-timing and survival at LGR.
Spatial distribution • IDFG does redd counts in the one MaSA. There are no MSA’s. Species diversity • Age and other diversity data available for 2001-2003, 2008, 2012 from INPMEP. • Sample size from carcass surveys small. • Genetic baseline needs to be maintained at regular intervals • Implement a 5-year rotating panel for baseline genetic samples. Bear Valley Population Adult abundance • IDFG does index aerial redd counts in Bear Valley and Elk creeks. Data available since 1957. • SBT does multi pass redd counts in Bear Valley Creek for the ISS project, ends in 2014. • Natural-origin Snake River Chinook abundance estimated at LGR by IDFG using GSI beginning 2008. Age composition and sex ratios also determined • Bear Valley Creek is a control stream for the ISS study. • Accuracy of GSI to identify this population needs to be determined • Need more accurate and precise adult abundance data (increased redd surveys, weirs, GSI). • SBT propose a DIDSON in Bear Valley Creek to evaluate adult escapement. Adult productivity • Sex ratio, hatchery proportion, length, percent spawned, DNA, age structure are obtained from carcasses surveyed during SBT ground redd count surveys • Hatchery fish are not stocked within population boundaries. • No recreational fishing for Chinook allowed within population boundaries. • SBT conducts tribal fisheries. • SBT monitors and estimates tribal harvest. • Additional sampling of SBT anglers to improve estimates of tribal harvest • Need more accurate and precise age structure data. Juvenile productivity • NMFS PIT-tags juvenile Chinook salmon during the summer in Bear Valley and Elk creeks. Data used to determine run-timing and survival at LGR. • SBT propose to operate a screw trap in Bear Valley Creek.
chapters_7-9_idaho_mu_plan_november_2015.docx