Future fish

An interesting piece in Nature on what the aquaculture will be like in the future.

"...some of the sea's carnivores have adopted a more vegetarian-like diet. In many farms, salmon, the predator farmed most heavily, have become accustomed to a diet of at least 25% soya bean, supplemented with fishmeal and fish oil at crucial times in their growth. "Even though they look like fish they are almost more similar to pigs," says Carlos Duarte of the Mediterranean Institute for Advanced Studies in Mallorca, Spain."

Where aquaculture farms are going to be located in the future? Onshore tanks & open ocean.