I manage several SMB/YP fisheries and own a few on the farm, and in my experience NO they will not manage BG or PS populations. You will need to harvest liberally and that still may not be enough.

If your goal is a population of harvest sized YP, you are severely limiting your capacity to achieve this goal with presence of PS and BG which will compete directly with the YP and also tie up a huge % of your fishery carrying capacity.

I'm not clear on your goals for the fishery - what is the most important for you?

Many men go fishing all of their lives without knowing that it is not fish they are after. ~ Henry David Thoreau

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