The devil is how you account for them and manage. If all the added mortalities are basically for accounting purposes to figure the split then they don't help the resource.

Say the forecast says that 3,000 fish are coming back and it is divided 1,000 to Indians, 1,000 to non-Indians, and 1,000 to escapement. You do the modeling of the various fisheries and decide that the I's have 200 morts, the NIs have 300. What it should mean is that the I's now take 800, the NI's 700, and escapement gets its 1,000. I suspect that the 2,000 harvestable will all be taken, with adjustments to each share based on mortalities. And the escapement then suffers.

The mortalities have to come off of the forecasted run size in order to put the conservation burden on the fishermen and not the resource.