OLYMPIA For the third straight year, fishery managers from Washington and Oregon plan to reduce the allowable catch of white sturgeon on the Lower Columbia River, where the species abundance has been declining since 2007.
At a public meeting last Saturday (Jan. 7), the Washington Fish and Wildlife Commission called for reducing this years combined sport and commercial harvest levels by as much 38 percent. A day earlier, Oregons commission endorsed a proposal to reduce the catch guideline by more than 25 percent.
The commissions charged fish and wildlife directors of both states with negotiating an agreement by Jan. 26, when a joint hearing is scheduled to announce fishing seasons for sturgeon and salmon below Bonneville Dam.
Last years sturgeon guideline for those waters was 15,640 fish, although only 14,488 were actually harvested. Under the current policy, 80 percent of the catch is allocated to the recreational fishery and 20 percent to the commercial fishery.
Any restriction in this years sturgeon harvest will follow a 30 percent reduction in 2011 and a 40 percent reduction the year before. Even so, most fishers who spoke before the Washington commission urged its members to take bold action to address the decline in sturgeon abundance in the Lower Columbia River.
Fishers are very concerned, and so is this commission, said Miranda Wecker, who chairs Washingtons nine-member citizen commission. This may be our last attempt to reduce the downward trend before we have to consider a complete moratorium on the fishery.
Fish biologists for both states estimate that the abundance of legal-size sturgeon measuring 38- to 54-inches in length has declined nearly 50 percent in the past four years. Projections indicate that 65,000 white sturgeon will be present below Bonneville Dam this year.
Factors often cited for the decline include increased predation by sea lions and a drop in the abundance of smelt and lamprey, which contribute to sturgeons diet. Pat Frazier, a regional fish manager at WDFW, said sea lion predation in the Lower Columbia River increased in each of the past six years, claiming more than 8,300 sturgeon in 2011.