Now the Portugese are "poaching" the Grand Banks instead of "fishing." The subtle linguistics will have them cower in their slickers with fear until the EU has the WTO overrule this idea. I'm sure the families in the US that suffer from their livelihood ending will be happy to know they saved fish for the future Portugese trollers in the name of environmentalism.
JMO, start a thousand commercial fish farms with the money peed on this idea. Have the US independent of the hazards of fishing the Grand Banks. It's a complicated idea BUT IT JUST MIGHT WORK if we all pull together for the good of the children. Capitalism at its finest: Domesticated-fish aqua ranches. Halibut selling for pennies. Tuna sans dolphin (range or domesticated) for 1/2 the price.
I do think that one of the ways to improve the situation is fish hatcheries. One current problem that needs to be addressed is the take of the "middle-level" species like menhaden -- it's hard to grow and spawn little fish like menhaden in the vast quantities necessary to feed the bigger, more "charismatic" fish.
Of course fish grown in farms isn't as nutritious. Wild foods always have better fatty acid makeup. Eg: Sample free range chicken eggs vs store bought. Anyone can detect the difference in quality.