Harvest is more than catch of that species. In systems where productivity will increase with increases in escapement of other species then fisheries on that stock are holding down the recovery of the listed species.

They showed this on the Keogh. When escapement of pinks (or fertilizer when they used it) was up, the number of SH smolts went up and population went from one in decline to one on invcrease.

In this case, harvest of those pinks directly affected the status and long-term stability of the steelhead.

As long as we insist on managing within narrow confines and definitions then harvest is not a problem.