In some recent years a June salmon fishery on the Alaska Peninsula caught more Western Alaska chum than the entire pollock fleet. The episode widens the frame beyond trawlers to the seafloor, where midwater nets may touch bottom, to halibut limits upheld in 2024, to Area M, and to an ocean crowded with about five billion hatchery salmon a year. The strongest case is the full ledger.
Estimates of how often midwater nets touch bottom range widely because they measure different things, and unobserved crab mortality has no agreed estimate. Ruggerone's review calls pink salmon competition strong evidence, while the state called it a hypothesis stated too firmly.