That's the kind of comparison that's been done over and over again since we've been monitoring and surveying inside and outside, before and after. Over and over again we show that no-take areas very quickly rebuild populations, if given enough time, to reach a spillover of this biomass into areas that can then be fished.
I'm not arguing that there is never an economic, an immediate, possibly small economic loss to closing an area, but if given enough time, those losses are more than recouped by the spillover.