Tanguar haor, (too called Tangua haor), found within the Dharmapasha and Tahirpur upazilas of Sunamganj District in Bangladesh, may be a one of a kind wetland biological system of national significance and has come into worldwide center. The zone of Tanguar haor counting 46 towns inside the haor is almost 100km2 of which 2,802.36 ha2 is wetland. It is the source of business for more than 40,000 individuals. The Government of Bangladesh announced Tanguar haor as an Environmentally Basic Region in 1999 considering its basic condition as a result of overexploitation of its characteristic assets. In 2000, the hoar bowl was pronounced a Ramsar location - wetland of worldwide significance. With this affirmation, the Government is committed to protect its normal assets and has taken a few steps for security of this wetland. Tanguar haor plays an imperative part in angle generation because it capacities as a 'mother fishery' for the nation.Each winter the haor is domestic to around 200 sorts of transient winged creatures. The haor is an vital source of angle. In 1999-2000, the government earned 7,073,184 takas as income fair from fisheries of the haor. There are more than 140 species of new water angle within the haor. The more transcendent among them are: ayir, pack magur, baim, tara, gutum, gulsha, tengra, titna, garia, beti, kakia etc.