NMFS PIT-tags juvenile Chinook salmon during the • summer. Data used to determine run-timing and survival at LGR. Spatial distribution IDFG has redd surveys in the one MaSA but not the Expand redd survey to the Yellowjacket • • one MiSA. Creek MiSA. Species diversity Age and diversity data for 2001-2006 available from Genetic baseline needs to be Implement a 5-year rotating panel • • • NPM maintained at regular intervals to collect baseline genetic samples. SBT propose to collect DNA from • juvenile Chinook salmon collected at the rotary trap Loon Creek Population IDFG aerial index redd counts in Loon Creek. Data Accuracy of GSI to identify this Need more accurate and precise adult • • • available since 1957. population needs to be determined abundance data (increased redd Natural-origin Snake River Chinook abundance escapement estimates surveys, weirs, GSI). • • Adult abundance estimated at LGR by IDFG using GSI beginning 2008. derived from expanding aerial redd Age composition and sex ratios also determined. counts highly variable. SBT conducted multiple pass ground surveys in • 2007 and 2008. Little data available Need carcass recovery Need more accurate and precise age • • • Hatchery fish are not stocked within population information for age structure. structure data. • boundaries. Additional sampling of SBT • Adult productivity No recreational fishing for Chinook salmon allowed anglers to improve estimates of • within population boundaries. tribal harvest. SBT conducts tribal fisheries in Loon Creek. • SBT monitors and estimates Tribal harvest • Little data available. Sample size from NMFS Need juvenile productivity estimate; SBT propose to install screw trap • • • • Juvenile tagging may be too small to obtain should be obtained through rotary screw in Loon Creek to monitor juvenile productivity accurate and precise estimates trap. productivity.
• NMFS PIT-tags juvenile Chinook salmon during the summer. Data used to determine run-timing and survival at LGR. Spatial distribution • IDFG has redd surveys in the one MaSA but not the one MiSA. • Expand redd survey to the Yellowjacket Creek MiSA. Species diversity • Age and diversity data for 2001-2006 available from NPM • Genetic baseline needs to be maintained at regular intervals • Implement a 5-year rotating panel to collect baseline genetic samples. • SBT propose to collect DNA from juvenile Chinook salmon collected at the rotary trap Loon Creek Population Adult abundance • IDFG aerial index redd counts in Loon Creek. Data available since 1957. • Natural-origin Snake River Chinook abundance estimated at LGR by IDFG using GSI beginning 2008. Age composition and sex ratios also determined. • SBT conducted multiple pass ground surveys in 2007 and 2008. • Accuracy of GSI to identify this population needs to be determined • escapement estimates derived from expanding aerial redd counts highly variable. • Need more accurate and precise adult abundance data (increased redd surveys, weirs, GSI). Adult productivity • Little data available • Hatchery fish are not stocked within population boundaries. • No recreational fishing for Chinook salmon allowed within population boundaries. • SBT conducts tribal fisheries in Loon Creek. • SBT monitors and estimates Tribal harvest • Need carcass recovery information for age structure. • Additional sampling of SBT anglers to improve estimates of tribal harvest. • Need more accurate and precise age structure data. Juvenile productivity • Little data available. • Sample size from NMFS may be too small to obtain accurate and precise estimates • Need juvenile productivity estimate; should be obtained through rotary screw trap. • SBT propose to install screw trap in Loon Creek to monitor juvenile productivity. tagging
chapters_7-9_idaho_mu_plan_november_2015.docx