Tuesday, February 1, 2011

random sustainability seafood thought

Sustainable fish is such a complicated issue.  One major component of this issue is that many fish are essentially carnivores and in order raise them in "farmed" setting, they must be fed large quantities of other fish for protein and oil, and this is bad because we end up "eating" the equivalent of a few pounds of fish for every.  Vegetarian feed alternatives can work, but often don't taste quite right and they often don't grow quickly enough. 

I wonder if anyone has really looked into growing massive quantities of earthworms in all the massive manure waste from industrial feedlots and using the earthworms as feed.  Two problems solved at once?