• Cobia, Rachycentron canadum, is found throughout the water column and occurs in warm temperate to tropical waters of the West and East Atlantic, throughout the Caribbean and in similar zones in the Indo-West Pacific region of India, Australia and Japan. The fish is a carnivore and congregates at reefs, ship wrecks, harbour-buoys and other submerged structures in search of food. Juveniles may enter estuaries and mangroves in search of prey. It is dark brown in colour, young ones have alternate black and white horizontal stripes, it grows up to 2 m length and 50 kg weight. It is one of the fast-growing and high-value marine fish that is being farmed in Sea Cages, in India.