The correct answer isit is a rearing strategy in which fish is reared in a controlled laboratory environment and let into the sea when they are of a certain size.
Sea ranching or ocean ranching is an internationally accepted concept, where fish that are commercially important and need replenishment are reared in a controlled laboratory environment and let into the sea when they are of a certain size.
Recently, in an effort to replenish natural fish stock in the sea off the coast of Tamil Nadu, the Fisheries Department has planned to ranch seeds of black tiger shrimps, Indian prawn and cobia at a cost of Rs 10.5 crore.