Big Deez
Sorry, I interpreted your remarks incorrectly, and threw in a bit of "get square".again, apologies.
If Fisheries believe that there is high mortality in the juvenile sizes, then breed as i said "billions" and release them when they are small white bait size. No expensive grow out stage required.
if they are subject to predation we are still increasing overall biomass.
But dont just stop at snapper , load the systems with Tailor, dart, trevally, mackeral, mullet ,whiting, jacks all at a couple of centremetres.
Given that most marine fish are prolific egg layers ,achieving large scales of reprodution should be relatively easy.This after-all is the survival stategy of many of these fish,,,millions of eggs, a few hundred survive with motality decreasing with age.
Many of the eggs layed by wild fish probably dont even get fertilized, so we can control that for a start then keep them just long enough to get past the first most critical stages of growth.
Again these are my thoughts based entirely on general knowledge acquired through informal channels.
I recognise there are flaws in my theory, but other than accepting that our fisheries will continue to decline and our access to them will continue to decline I can not see any evidence to support the current management paradigm.
The only fish to have been successfully managed as far as i can see is flathead,everything else is going backwards.