Yes, this is being seriously investigated. It was already approved for commercial use by the EU in 2017. Specifically the industry is looking at places where there is both waste biomass and low-grade waste heat available nearby, and close proximity to fish farms, in order to produce fish feed from farmed insects.
AFAIK the black soldier fly (BSF) larvae and the yellow mealworm are the two species which are in focus. For BSF larvae I believe they have some extremely convenient biological urge to migrate once they have reached maximum size, so it's possible to set up systems where they "collect themselves" at the optimum size for processing into meal.
AFAIK the black soldier fly (BSF) larvae and the yellow mealworm are the two species which are in focus. For BSF larvae I believe they have some extremely convenient biological urge to migrate once they have reached maximum size, so it's possible to set up systems where they "collect themselves" at the optimum size for processing into meal.