Steelhead population has doubled in Skokomish River, Hood Canal

The steelhead population in the Skokomish River has doubled since the Skokomish Tribe started a supplementation project in 2006, part of a 16 year-long project to boost the steelhead population in Hood Canal.

“The increase in the number of egg nests has given us an early indication that the project is working, but the long-term monitoring will be the true test of its success,” said Matt Kowlaski, the tribe’s steelhead biologist. “We expect numbers to continue to increase over the next four years because there will be active supplementation of steelhead into the river. After the project is over, we expect the egg nest numbers to likely flatten out or decrease, but hopefully remain at elevated levels.”  (more…)

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Skokomish Tribe Controlling Japanese Oyster Drills on Tidelands

The Skokomish Tribe has strategically placed nearly 100 cinderblocks on the Skokomish tidelands with hopes of attracting an invasive shellfish, the ornate Japanse oyster drill.

Shellfish technician Josh Hermann loads a cinderblock cell with oyster clusters with oyster drills on them.
Shellfish technician Josh Hermann loads a cinderblock cell with oyster clusters with oyster drills on them. Click on the photo to see more at NWIFC’s Flickr page.

“Oyster drills are known to seek out hard vertical structures to gather and lay their egg cases, so by experimentally baiting them with cinder blocks, we’re hoping to lessen their impacts on our oyster seed,” said Chris Eardley, the tribe’s Shellfish Biologist. “We’re going to try and use the biology of these creatures against them.”

The snails release a pheromone to attract others, so Eardley hopes his 72 cinder blocks across eight acres of tidelands will be covered with snails and eggs soon, which will be collected by the staff and removed from the tidelands. The tribe is employing a few methods of drill control and will do an end-of-season survey in late summer to see if the population decreased. (more…)

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