There’s a contest going on, and the prize is $100,000. Anyone can play! Anyone, that is, with the ability to make 100,000 metric tons of fish feed. Vegetarian fish feed.

One of the biggest challenges facing aquaculture is how to feed fish without having to raid the oceans for the small fish that go into feeding those farmed fish. Wild fish such as anchovies and menhaden produce two of the components of all fish feed, protein and oil. But harvesting them from the ocean only adds pressure to depleting global fish stocks.

The purpose of the F3 [Fish-Free Feed] Challenge, according to University of Arizona professor Kevin Fitzsimmons, who started it, is to bring attention to this critical issue. “We