Yes Slab, fish are complex critters. However it is the intersection of human activity and fish where the situation becomes really complex. And dealing with that requires more than a grant or series of grants. It's that intersection that requires resource management agencies working for as long as the intersection persists. Seems like a small price to pay for the benefits that accrue from the human intersection with fishery resources. Would you prefer the alternative of no grants, and no managment, just using up the resource like it was non-renewable, and then moving on - to where - the next planet?

Sg