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A 17-mile stretch of the Columbia River between Bridgeport and Brewster, Washington, is about to become a hotspot for triploid trout fishing.
From Aug. 1-31, anglers will be allowed to catch and keep triploid rainbow trout in the mainstem Columbia River from the Highway 173 Bridge in Brewster to the Highway 17 Bridge in Bridgeport, under a new regulation issued by the Washington Department of Fish and Wildlife (WDFW).
The target of the fishery is a large number of triploid trout that escaped from a net-pen facility on Rufus Woods Reservoir in June and have now passed downstream into the Wells pool area below Chief Joseph Dam, said Jeff Korth, a WDFW fish biologist.
Pacific Seafoods, which owns the net-pen facility, estimates that 117,500 triploids escaped in June through a breach in a net-pen. Many of those fish run 4 to 5 pounds apiece, Korth said.
"Anglers have been catching those fish in Rufus Woods Reservoir for the past couple of months, which is great," he said. "But we do have some concerns about the growing number of triploids turning up below Chief Joseph Dam, because they could interfere with juvenile steelhead downstream."
Korth said the triploids are "voracious" eaters and could pose a threat to juvenile steelhead, some of which are listed for protection under the federal Endangered Species Act.
Under the new rule, the daily limit will be four triploid rainbow trout, with a minimum size 12 inches. All steelhead must be released, and must not be completely removed from the water.
|Triploid Trout. WDFW Photo.|
|Steelhead. WFDW Photo.|