@Ionus,
You seem to take an issue and then try to reach for the overlly dramatic. We dont have a food shortage problem anywhere. We have problems of corrupt governments and bad distribution systems.
ANyway, based upon your drama, Im not sure we are ever gonna feed the "masses" with choice bits of tuna sashimi (the nori alone is limiting).
The interesting thing is that , if we DONT practice conservation, we wont have the amount of tuna anyway, do you realize that the population is crashing to a level that wont sustain harvests?
AS we deplete stocks in numbers greater than carrying capacity, each additional individual we take means that we drive the entire species to possible extinction and alas, no more sushi (can put sausages over the rice).
UNfortunately conservation is the only means we have to stop the decline.
The AMerican regional lobster industries are examples of management and conservation in prctice. Lobsters have a strict season , fishing water delineation, and catch and size limits for lobstermen. This has helped keep the lobster as close to a managed species as farm raised turkeys. The lobstermen have all realized that they dont want to lose this resource from one or two decades of overfishing (as was beginning to happen in the 1980's), so in MAine, theyve banded together to help develop a sustainable industry that employs thousands and yet controls the depletion of a stock by overfishing.
Even sport lobstering is controlled pretty closely in MAine.
In Canada the seasons and licensing requiremets are even more strict. Canadians use a moving season where different parts of the MAritimes have different opening and closing dates.