On Friday, Sept. 20, the Idaho Fish and Game Commission voted to close all fall steelhead seasons on the Clearwater River because the number of returning adult hatchery fish is less than the number needed for broodstock, and there is no surplus to provide a fishery. (See related Coho salmon article on page 10A of this week’s issue.)
The closure is effective at midnight this Sunday, Sept. 29, and covers the Clearwater River upstream to the confluence of the Middle Fork and South Fork, along with the North Fork, Middle Fork and South Fork tributaries.
The section of the Snake River downstream from the Couse Creek boat ramp to the Idaho/Washington state line will also be closed to protect Clearwater-bound steelhead. The closure in the Clearwater River drainage is consistent with harvest restrictions put in place in fisheries on the mainstream Columbia River by the Oregon and Washington Fish and Wildlife Departments.
Consistent with existing rules that prohibit targeting steelhead or salmon where there is no open season, anglers will not be allowed to fish for steelhead in the Clearwater River drainage after the fishery is closed, even catch-and-release.
The Clearwater River drainage closure is in addition to the already-restricted fishery the commission approved for statewide steelhead fishing during their Aug. meeting. The existing seasons remain in place for steelhead fisheries in the Salmon and Snake River basins.
Idaho Fish and Game biologists have been tracking steelhead returns closely, and the number of Clearwater-bound hatchery steelhead has continued to fall short of projections. According to Lance Hebdon, anadromous fishery manager for Idaho Fish and Game, while the return of wild, Clearwater-bound steelhead is tracking close to the preseason forecast, the return of hatchery-origin steelhead to the Clearwater River is substantially below what was expected.
Through Sept. 18, biologists estimate about 1,158 hatchery steel head destined for the Clearwater River have passed Bonneville Dam based on PIT tags. The small, electronic tags are embedded in fish and help biologists know which river migrating steelhead are destined for. On average, about 50 percent of the hatchery steelhead returning to the Clearwater River would have passed Bonneville Dam by Sept. 18.
“Based on average run timing, we estimate that this will result in approximately 2,300 fish crossing Bonneville Dam by the end of the season,” Hebdon said. “The result for Idaho anglers is that only 1,700 hatchery steelhead destined for the Clearwater River will make it to Lower Granite Dam by the end of the season.”
In order to meet broodstock needs for Clearwater River hatcheries (a total of 1,352 fish), 100 percent of the steelhead destined for the North Fork Clearwater River, and a high percentage of the fish destined for the South Fork Clearwater River would have to be collected, leaving no surplus fish for harvest.
Although the steelhead fishery will be closed in the Clearwater River basin, there will be no changes to the ongoing fall Chinook season, which is scheduled to close on Oct. 13. In addition, the commission approved a Coho salmon fishery in the Clearwater River basin during their conference call on Sept. 20. This Coho fishery is open effective immediately, and will run concurrent with the fall Chinook fishery.
Because these fisheries will close Oct. 13, or earlier if catch limits are attained, any incidental impact on Clearwater hatchery steelhead is expected to be minimal.
“Early in the fall, many of the steelhead in the Clearwater River basin are actually fish destined for the Salmon and Grande Ronde Rivers, which have pulled into the Clearwater until water temperatures in the Snake River start to cool off,” Hebdon said. “The main component of the Clearwater River steelhead run starts arriving in the middle of October.”