Unless you have inflow/outflow tubing supplying new freshly oxygenated saltwater and draining away old oxygen-depleted / C02-rich saltwater, your shaker is gonna die of hypoxia and respiratory acidosis. You're far better off recovering that fish in the water from which it came... not stagnant bucket water.

Chinook impacts are 100% dependent on encounters. The only way to stop accruing impact is to get the gear out of the water. ZERO encounters means ZERO impact.

If there is gear in the water, then there will be encounters. If there are encounters, there are impacts.