Dave it is my understanding that protein in fish feed is the highest cost ingredient,so imo it is beneficial from a price aspect along with taking away from the need to use fish meal.

NOAA had a really good article on aquaculture and feed a while back that explained the pressure the industry is putting on fish caught and processed into fish meal.Essentially it is a finite resource like all others and the aquaculture industry demands far exceed the sustainable supply.

I really should have saved the article,it really put things into perspective for a hobbyist like myself.