IDFG providing increased monitoring of B-run No CV estimates made. • • steelhead. Adult productivity No Lolo Creek specific data. Lacking estimates of natural Develop habitat and life cycle model(s) . • • • IDFG Columbia Basin Fish Accord provides cohort age and sex structure. to synthesize available data to • $150,000/yr to do GSI assessments (combined with Population is influenced by extrapolate from other populations. • age and sex comp.) in Clearwater and Salmon River. hatchery steelhead; hatchery Need to be able to identify adults • Sport fishing for adult steelhead not permitted within fraction data are lacking. returning from supplementation smolt • population boundaries. Estimates of natural population releases. • NPT and IDFG B-run steelhead supplementation incidental mortality from Supplementation effectiveness M&E is • • effectiveness monitoring in Lolo Creek. recreational fisheries are needed. imprecise. NPT hatchery monitoring and • evaluation weir construction. Juvenile No Lolo Creek specific data. Estimates of smolt immigration Increase number of PIT tags. Explore feasibility of sampling • • • • productivity NPT operates a juvenile screw trap located at rkm 21 with trap efficiency available. No PIT-tag steelhead at screw trap. smolts at LGD for GSI and age • • that targets Chinook. Steelhead are not PIT-tagged. CV estimates made. Area below collection for determining age composition. • trap not considered a spawning structure and genetic profile. area for steelhead. Spatial distribution No Lolo Creek specific data. NPT proposes supplementation • • effectiveness study including GRTS juvenile distribution and density sampling. Species diversity No Lolo Creek specific data. Collect data at screw trap. Implement a 5-year rotating panel • • • Collect samples for genetic baseline to collect baseline genetic • database. samples. Lochsa Population Adult abundance No hatchery fish released. Fish Creek has good data quality Snake River steelhead annual • • • IDFG operates one temporary weir on Fish Creek starting in 1992. of hatchery returns, • with mark recapture estimates that provides index for harvest, and escapement to known and population. unknown population areas .
• IDFG providing increased monitoring of B-run steelhead. • No CV estimates made. Adult productivity • No Lolo Creek specific data. • IDFG Columbia Basin Fish Accord provides $150,000/yr to do GSI assessments (combined with age and sex comp.) in Clearwater and Salmon River. • Sport fishing for adult steelhead not permitted within population boundaries. • NPT and IDFG B-run steelhead supplementation effectiveness monitoring in Lolo Creek. • Lacking estimates of natural cohort age and sex structure. • Population is influenced by hatchery steelhead; hatchery fraction data are lacking. • Estimates of natural population incidental mortality from recreational fisheries are imprecise. • Develop habitat and life cycle model(s) to synthesize available data to extrapolate from other populations. • Need to be able to identify adults returning from supplementation smolt releases. • Supplementation effectiveness M&E is needed. • NPT hatchery monitoring and evaluation weir construction. . Juvenile productivity • No Lolo Creek specific data. • NPT operates a juvenile screw trap located at rkm 21 that targets Chinook. Steelhead are not PIT-tagged. • Estimates of smolt immigration with trap efficiency available. No CV estimates made. Area below trap not considered a spawning area for steelhead. • Increase number of PIT tags. • PIT-tag steelhead at screw trap. • collection for determining age structure and genetic profile. • Explore feasibility of sampling smolts at LGD for GSI and age composition. Spatial distribution • No Lolo Creek specific data. • NPT proposes supplementation effectiveness study including GRTS juvenile distribution and density sampling. Species diversity • No Lolo Creek specific data. • Collect data at screw trap. • Collect samples for genetic baseline database. • Implement a 5-year rotating panel to collect baseline genetic samples. Lochsa Population Adult abundance • No hatchery fish released. • IDFG operates one temporary weir on Fish Creek with mark recapture estimates that provides index for population. • Fish Creek has good data quality starting in 1992. • Snake River steelhead annual of hatchery returns, harvest, and escapement to known and unknown population areas .
chapters_7-9_idaho_mu_plan_november_2015.docx