Hampshire is the breed of: - Solved MCQ | Agrigyan

Sewage-fed aquaculture is most extensively practiced in West Bengal in the East Kolkata Wetlands (EKW). The entire EKW Ramsar site spans 12,500 hectares, within which traditional fish ponds (bheries) cover approximately 3,800 to 4,000 hectares, utilizing municipal sewage for natural biological treatment and commercial carp production.

Daphnia (commonly called the water flea) belongs to the order Cladocera within the crustacean subphylum. Brachionus, Keratella, and Filinia are rotifers (phylum Rotifera).

Golden mahseer (Tor putitora) is a coldwater rheophilic fish inhabiting turbulent, gravelly hill streams with high dissolved oxygen requirements. Its heavy, demersal, adhesive eggs require a continuous, well-oxygenated, unidirectional flow of cool water ($18^\circ\text{C} - 22^\circ\text{C}$) provided in flow-through hatching troughs or tray incubators.