Why farming fish is more unsustainable than catching them in the wild | Producing a kilogram of farmed salmon may require 4 or 5 kilograms of wild fish, which isn’t a sustainable approach to feeding the world’s growing population.
Source: a_Ninja_b0y
3 Comments
Until you realize, we need a market for wild-caught undesireable fish because otherwise the trawlers wouldn’t know what to do with the millions of tons of bycatch they have to deal with.
I guarantee the math would work differently if trawlers were out of the picture. It’s similar to corn subsidies in the US, where they had to figure out how to make its way into our food (corn syrup) and cars (corn ethanol).
We need to eat lower down the trophic level if we want to eat fish, instead of just eating Tuna, Salmon, Mahi, Swordfish, etc. we should be eating the sardines, herring, etc. . . The smaller more abundant fish, and if we do want to pursue farming it should be with those.
Surely wild salmon also eat 4 -5kg of wild fish. I’m pretty sure they don’t grow out of thin air.