Wrangell Sentinel -

If it still seems strange to think of fish growing on farms, it shouldn’t. The global industry has had to grow. Demand for seafood is soaring and will continue to rise. But the oceans are giving up all they can: Production of wild fish around the world has been flat since about 1990.

And as the fish-farming industry has grown, the problems of large-scale operations have grown with it. Many are like problems that face massive chicken, pig and cattle operations. The farms and the waste from them can degrade and pollute nearby ecosystems, diseases can quickly sweep through the tightly packed fish...