Precious indigenous fish species is declining alarmingly from the waterbody of vast Barind tract due to frequent use of toxic disposal from last decade. Both farming and marketing of the high yielding cross matching fish species have been enhanced significantly across all small, middle and big kitchen markets during the last couple of years. The new born kids have a few acquaintances with the declining indigenous fish variety. In a recent interview Bogra district fisheries officer Rawshon Ara urged that the small fishes enriched with high nutrition which is capable of protecting the human beings particularly the growing aged ones from various diseases. The local wholesale markets, haats and bazars are now flooded with the promoted varieties of fish which are less tasty and nutritious than the local ones. Although a few amount indigenous fish is seen in the fish markets, the price is beyond capacity at all. With wide-ranging promotion of exotic and hybrid fish species, the indigenous species, particularly the small ones, are gradually being endangered everywhere in the country’s northern region, said Ashraful Alam, proprietor of Selim Fish Warehouse at Shingra upazila of Natore district. Apart from this, all varieties of native fish are also on the decline in the region because of drastic fall in surface water resources like ponds, canals, rivers and water bodies. The sharp fall in production of local fish varieties is also widely blamed on the indiscriminate catching of the mother fish. Fisherman Milon Kumar Das said unabated use of fine nets for fishing in the water bodies, poor depth in river waters and filling up of their water bodies by illegal encroachers are also among the reasons behind the fall in production of the local fish. The Deputy Director of Fisheries department said, conscious, fish producers and authority concern should emphasis on adoption of time-fitting measures to protect those especially the small indigenous ones from further depletion.