He says right now most reserves are fairly small. And the best example we have there has been coming from the closures of the cod fishery on Georges Bank. Where roughly 40 percent of the . . . What's happened since then is there have been substantial increases in the catch of cod, as well as other species. . . For example, scientists once assumed that juvenile fish move passively with the currents.
New studies show some young fish are good swimmers.
They buck the currents and stay close to home. I'm Joel Block for Earth and Sky.