On a sunny morning in Garibaldi, Oregon, Jesse Coon offloads his catch. Men in waterproof fishing bibs pack salmon into ice and hose out the boat, named Steel Fin. Standing next to stacked coolers of freshly caught fish, Coon pulls out one of the Chinook salmon his crew just caught and explains how it senses bait in the water.“If you look at it really close, there’s actually pores — holes right there — and that’s their nervous system. And they c…