It stands to reason that, if fish are being caught before they get to the river, they're not going to make it farther upstream and to the spawning ground, so absolutely. I mean, the real point is that, in these times when there's real scarcity, populations are struggling to have enough spawners such that they are able to produce enough offspring to replace themselves. It is true that, functionally, every fish matters.
It is also similarly true that every fish that is caught in bycatch or intercepted might not make it back to the river itself, so there are some truisms in all of the parts here. That's why there is accounting for where the fish would have been going using genetics, taking into account that, if it were a young fish, that fish might not have been maturing this year or even next year to do the accounting of how many would have made it back. There are complications on the end, but all I know—and I think people would agree here—is that in these times of real crisis, every fish that didn't make it back to the river is a real loss, and we need to get really serious about trying to ensure that every fish makes it.