Good article on the impact of pigs, chickens and cats on fish

Very interesting and troubling piece in today's NY Times on why how fish has become a core part of the raising of cattle and poultry, driving greater demand for fish, further depleting our oceans.

It raises an interesting solution, in using algae and other aquatic vegetation to replace fish in animal feed. This seems especially compelling as it could drive demand, thus economic value of aquatic vegetation. If managed properly, maybe  this would actually be beneficial for our seas.