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U.S. officials plan to curtail salmon fishing along West Coast to help killer whales

Federal officials in the U.S. are planning to curtail non-Indigenous salmon fishing along the country’s west coast in years when runs are forecast to be low, in order to help endangered killer whales.

The NOAA Fisheries department is taking public comment on the plan, which calls for restricting commercial and recreational salmon fishing when chinook salmon forecasts are especially low.

Southern resident killer whales — the endangered orcas that spend much of their time in the waters between Washington state and British Columbia — depend heavily on depleted runs of fatty chinook.

Recent research has affirmed how important chinook are to the whales year round, not just when they forage in the inland waters of Washington and B.C. in the summertime.

The fishing restrictions would extend from Puget Sound in Washington to Monterey Bay in central California — around 1,300 kilometres of coastline — and they would be triggered when fewer than 966,000 chinook are forecast to return to rivers in the Pacific Northwest.

The last time forecast chinook returns were that low was in 2007.

The restrictions would include reducing fishing quotas north of Cape Falcon in Oregon; delaying the start of the ocean commercial troll fishery between Cape Falcon and Monterey Bay; and closing parts of the Columbia River and Grays Harbor in Washington, and the Klamath River and Monterey Bay to fishing much of the year.

If NOAA Fisheries adopts the plan as recommended by the Pacific Fishery Management Council, it would be one of the first times a federal agency has restricted hunting or fishing one species to benefit a predator that relies on it.

There are 75 orcas in the three pods that make up the southern resident orca population.

The killer whales have in recent years been at their lowest numbers since the 1970s, when hundreds were captured —
and more than 50 were kept — for aquarium display.

Scientists warn the population is on the brink of extinction.

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