Cinematic 4K. Aerial shot drone. Cage fish production. Fish farming or pisciculture involves raising fish commercially in tanks or enclosures usually for food. It is the principal form of aquaculture while other methods may fall under mariculture. A facility that releases juvenile fish into the wild for recreational fishing or to supplement a species natural numbers is generally referred to as a fish hatchery. Agriculture Bay water case environmental conservation farm fish farm fishing industry nets sea seafood trap trapped salmon blue cage fjord net trade manufacture business intelligence lake ocean river stream circle circuit cluster pile group stack aggregate mass. 3840×2160 UHD 4K.