A recirculating aquaculture farm outside Windsor, Nova Scotia, is improving upon open-pen ocean fish-pen farming by having tightly-controlled conditions, negating the need for antibiotics.
They are also using feed protein from 7:49 black soldier flies, which are raised on food waste, rather than feed made from other fish.
The problem with open-ocean fish pens is both the need for 20:42 ever-more-powerful antibiotics to prevent sea lice, and 29:53 dioxin effluent from paper mills that concentrates in the fish that feed the fish. It's farmed salmon, in particular, that has 23:04 far more pollutants than other farmed fish species. Farmed fish can also concentrate mercury from the fish pellets they eat.
The advantage of black soldier flies as a protein source is their unique ability to produce 4:15 large amounts of high-grade protein from waste food.
Black soldier flies can even be raised 6:22 without giving them water, ideal for desert farms, and the insect frass, or poop, can 11:17 fertilize plants making them stronger and more insect-resistant.
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