Our riverine Bangladesh has innumerable different types of interiors, big and small The reservoir has an area of about 47 lakh hectares and a vast area of 1.66 sq km. Bay of Bengal. About 88% of Bangladesh's inland water bodies are free In water bodies such as rivers, canals, beels, wetlands of the Sundarbans, Kaptai Lake and floodplains. Whose total volume 40.25 lakh hectares. On the other hand, there are closed reservoirs. Shrimp farm. Their total area is 6.78 lakh hectares. Bangladesh's current total production Eighty percent comes from inland reservoirs and 20 percent comes from marine fishing.
In the distant past, the inland open water bodies of this country are naturally different Lots of species of fish were caught. In the sixties it accounted for 80 per cent of the total fish production. The last few Population growth in decades Excess water use Adequate use of agricultural pesticides Water pollution as a result of industrialization Due to unplanned infrastructure construction and environmental imbalance in the Nidhan river, inland water bodies are now inundated. To be only 35 per cent in production. The remaining 47 percent of production comes from fish farmed in various closed ponds and 18% There have to be marine fish. With only production in the open water, the biodiversity of fish is increasing day by day.
Of the total 260 species of freshwater fish in Bangladesh, 12 are endangered T has been identified as endangered and 14 endangered species. At that stage in natural reservoirs Extremely endangered nations such as Sarpunti Mahashol Bagail are facing the risk of extinction in the campaign. RJ species endangered in the near future is called an endangered species.. On the other hand, he is at risk of extinction in the medium term without risking reaching. Says the stage. Examples of some endangered species of fish in Bangladesh are Jani Pabda Tengra etc. And so after being risky Holi Gulsha Kajli Meni etc. To increase fish production in open water and conserve biodiversity It is important to establish safe habitats or sanctuaries for fish. Fisheries sanctuary is one of the reservoirs Certain parts such as any part of a haor-beel river where for a long period of time throughout the year or at certain times of the year Fishing is permanently prohibited. Many times it is not possible to catch fish in that particular place For this, tree stalks, bus, etc. are placed. In this way the fish gets safe shelter there freely It can roam and cause anatomy. At present, it is the interior of various rivers of the country About five hundred sanctuaries are being run in the open water.
281.338 SRY