Use of known-source adult chinook salmon and steelhead to evaluate homing and survival of adult migrants in the Columbia River: 2000-2002 C.
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Use of known-source adult chinook salmon and steelhead to evaluate homing and survival of adult migrants in the Columbia River: 2000-2002 C. A. Peery, M. L. Keefer, and S. R. Lee Idaho Cooperative Fish and Wildlife Research Unit U.S. Geological Survey and Northwest Fisheries Science Center NOAA Fisheries Funding: U. S. Army Corps of Engineers U. S. Geological Survey Study goal: Use radio telemetry to monitor and evaluate passage of adult salmon and steelhead in Columbia and Snake rivers Methods 1. Collect and tag fish at Bonneville Dam. 2. Release tagged fish downstream and upstream of Bonneville Dam. Study Area Canada U.S.A. McIntyre Dam Lake Zosel Osoyoos Dam Chief Joseph Wells Grand Coulee Columbia River Rock Island Snake River Rocky Reach Wanapum Little Goose Priest Lower Rapids Monumental Yakima R. Ice Harbor John Day McNary Portland Bonneville The Dalles Lower Granite Use of PIT tags 1999: Trial use of archival Data Storage Transmitters (DSTS). fish tagged at Ice Harbor Dam and retrieved at Lower Granite Dam using Sort-by-Code 2000: Selecting for known-source fish at Bonneville Dam for evaluations of homing ability. 2002: Double tagged (radio and PIT) fish used to evaluate fishway PIT tag detectors and lost tags. 2002: Develop methods to interpret fishway PIT tag detections to evaluate adult salmon and steelhead passage at dams. Objectives Summarize homing and straying rates for known-source adults Identify fates and distribution of known-source fish that did not home or stray • Mainstem harvest • Unknown fate PIT-tag sites for 1,276 sp/su chinook salmon with radios (2000-2002) Upper Columbia dams and hatcheries 277 (22%) At LoMo 46 (4%) Yakima WL 218 (17%) RR At LGr RI WP LGr PR Carson NFH 78 (6%) 383 (30%) LM GO IH JD BO MN TD Upstream from LGr 255 (20%) John Day 15 (1%) other: 3 Umatilla, 1 Tucannon PIT-tag sites for 1,285 steelhead with radios (2000-2002) Upper Columbia dams and hatcheries 466 (36%) WL RR At LGr RI WP LGr PR 650 (51%) LM GO IH JD BO MN Upstream from LGr TD 143 (11%) Umatilla 18 (1%) other: 1 Yakima, 1 Wind, 4 Walla Walla, Tucannon 2 PIT-tag sites for 118 fall chinook with radios (2000-2002) Upper Columbia dams 5 (4%) Yakima PR Hatchery WL 10 (8%) RR 5 (4%) RI WP LGr PR LM GO IH JD BO MN Upstream from LGr or Lyons Ferry 97 (82%) TD Umatilla 18 (1%) other: 1 Ringold Hatchery Homing/Escapement* of PIT-tagged stocks 100 Steelhead Sp/Su chinook 120 98 80 38 99 140 15 470 186 8 Homing (%) 29 60 28 357 436 48 140 326 40 20 2000 2001 2002 10 0 Wind JohnDay Yakima Snake UCol Umatilla Snake UCol * Homing for Snake fish = last recorded upstream from Lower Granite Dam or at LGr Trap * Homing for Upper Columbia fish = last recorded upstream from Priest Rapids Dam Chi-square tests for between-stock differences in homing 2001 2002 0.004 yak 0.141 0.391 0.131 Snake v. Wind 0.357 0.087 Yakima v. U. Columbia 0.060 0.977 0.008 yak 0.008 yak 0.191 0.007 col 0.130 0.688 Sp/Su Chinook 2000 Snake v. Yakima Snake v. U. Columbia Yakima v. Wind Wind v. U. Columbia 0.120 Steelhead Snake v. U. Columbia Straying* of PIT-tagged stocks 20 Sp/Su chinook 2000 2001 2002 Straying (%) 15 Steelhead 40% 10 8 10 48 140 357 5 38 29 326 436 28 470 98 0 15 186 120 Wind JohnDay Yakima Snake 140 99 UCol Umatilla Snake UCol * Includes fish harvested out-of-basin whose straying may have been temporary (38% of sp/su chinook and 31% of steelhead strays were harvested) Where PIT-tagged sp/su chinook stocks strayed stray harvest Snake (13) U. Columbia (3) WL Wind (6) RR Yakima (1) RI Umatilla (1) WP LGr PR LM GO IH JD BO TD Total straying rate = 1.88% (24/1,276) MN Where PIT-tagged steelhead stocks strayed stray harvest Snake (46) U. Columbia (32) WL Walla Walla (4) RR Tucannon (1) RI Umatilla (5) WP LGr PR LM GO IH JD BO TD Total straying rate = 6.85% (88/1,285) MN Differential steelhead straying: shoreline orientation? Stock Upper Snake Columbia Did not stray in lower river 752 435 Strayed into OR-shore tributaries 32 9 Strayed into WA-shore tributaries 10 22 P = 0.003 P = 0.065 Chi-square test PIT-tagged stocks harvested in mainstem* fisheries 25 Sp/Su chinook 2000 2001 2002 Mainstem harvest (%) 20 Steelhead 48 15 140 326 470 10 186 436 10 98 29 5 15 357 120 140 99 38 0 8 28 Wind JohnDay Yakima Snake UCol * Downstream from Lower Granite and Priest Rapids dams Umatilla Snake UCol Distribution of mainstem* harvest 50 Chinook Number of harvested fish 40 30 Steelhead 11 1 18 77 10 1 1 78 65 Wind John Day Yakima Snake U. Columbia Umatilla Tucannon Snake U. Columbia 20 10 0 ds BO BO pool TD pool JD pool * Downstream from Lower Granite and Priest Rapids dams abv MN lower Snake PIT-tagged stocks unaccounted for* in mainstem 35 Sp/Su chinook 2000 2001 2002 30 Steelhead 10 Unknown fate (%) 25 28 20 15 29 15 140 10 186 5 99 357 436 470 48 0 38 8 326 140 98 120 Wind JohnDay Yakima Snake UCol Umatilla Snake UCol * Includes fish last recorded at dams or in reservoirs downstream from L. Granite/P. Rapids Chi-square tests for between-stock differences in unknown Sp/Su Chinook 2000 Snake v. Yakima Snake v. U. Columbia Snake v. Wind 0.021 snr 2001 2002 0.048 snr 0.028 snr 0.009 col yak (1.7%) 0.909 0.022 win snr (6.2%) 0.223 col (12.9%) Yakima v. U. Columbia Yakima v. Wind Wind v. U. Columbia 0.001 col win (17.2%) 0.100 <0.001 win 0.981 0.531 0.218 0.867 0.057 Steelhead Snake v. U. Columbia Distribution of fish with unknown* fate 50 Chinook Number of harvested fish 40 30 Steelhead 7 2 6 54 30 4 0 87 44 Wind John Day Yakima Snake U. Columbia Umatilla Tucannon Snake U. Columbia 20 10 0 ds BO BO pool TD pool JD pool * Downstream from Lower Granite and Priest Rapids dams abv MN lower Snake Collection gallery Homing to L. Granite by PIT-tagged chinook with radios: Effects of juvenile barging PIT-tag site n % home % recaptured downstream % stray % mainstem sites ds Upstream LGr 255 83.9 10.2 0.4 5.5 LGr - Barge 201 70.1 10.9 5.0 13.9 LGr - River 182 81.9 12.9 1.1 4.9 Barge v. River <0.001 0.726 0.030 0.003 Barge v. Upstream <0.001 0.796 0.002 0.002 River v. > Upstream 0.880 0.533 0.378 0.801 Chi-sq tests Homing to L. Granite by PIT-tagged steelhead with radios: Effects of juvenile barging PIT-tag site n % home % recaptured downstream % stray % mainstem sites ds Upstream LGr 142 79.6 8.5 2.8 9.2 LGr - Barge 135 65.9 6.7 9.6 17.8 LGr - River 514 73.7 10.9 5.6 9.7 Barge v. River 0.072 0.145 0.652 0.009 Barge v. Upstream 0.011 0.575 0.018 0.035 River v. > Upstream 0.155 0.398 0.173 0.838 Chi-sq tests Conclusions: Chinook Salmon Estimates of homing, straying, harvest and unknown fate: Chinook Homing ~ 81.2% Straying Harvest Unknown ~ 1.9% ~ 9.2% ~ 7.8% Homing relatively high for Yakima River, low for Wind River Large differences in proportions of unaccounted for fish between stocks, mostly in 2001: low harvest of summer chinook Barged fish home at lower rates, stray at higher rates and tended to have larger proportions with unknown fate Conclusions: Steelhead Estimates of homing, straying, harvest and unknown fate: Homing Steelhead ~ 83.9% Straying Harvest Unknown ~ 6.9% ~ 11.2% ~ 10.5% Homing generally consistent between stocks Upper Columbia stocks harvested at higher rates than Snake River stocks Barged fish home at lower rates, stray at higher rates and tended to have larger proportions with unknown fate Methods Obj. 2. Build and install PIT detectors. Instream PIT detectors are based on 23 mm, 12 mm and 12 mm extended read range 134 kHz ISO tags. Components: Open coil inductor loops composed of multi-strand wire strung through 4 in. diameter PVC pipe. Multiple loops can be combined to cover stream widths. Largest units tested to date were 6 x 2 m. Multiplexor. Portable computer Power supply Weatherproof housing Face view Side view Water level Flow