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Tanguar Haor টাঙ্গুয়ার হাওড়
Tanguar Haor () is a wetland ecosystem located in the Dharampasha Upazila, Dharmapasha and Tahirpur Upazila, Tahirpur upazilas of Sunamganj District in Bangladesh. The area of Tanguar Haor including 46 villages within the haor is about of which 2,802.36 ha2 is wetland. It is the source of livelihood for more than 40,000 people. Bangladesh declared it an Ecologically Critical Area in 1999, considering its critical condition as a result of overexploitation of its natural resources. Every winter the haor is home to about 200 types of migratory birds. In 1999–2000, the government earned 7,073,184 takas as revenue just from fisheries of the haor. There are more than 140 species of freshwater fish in the haor. The more predominant among them are: , Cat fish, . Gulli, balua, Ocimum, ban tulsi, Phragmites, nalkhagra and other freshwater wetland trees are in this haor. Plant species like Hizol (''Barringtonia acutangula''), ''Clematis cadmia'', ''Crataeva nurvala'', ''Euryale fer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freeboard (nautical)
In sailing and boating, a vessel's freeboard is the distance from the waterline to the upper deck level, measured at the lowest point of sheer where water can enter the boat or ship. In commercial vessels, the latter criterion measured relative to the ship's load line, regardless of deck arrangements, is the mandated and regulated meaning. In yachts, a low freeboard is often found on racing boats, for increased speed (by reducing weight and therefore drag). A higher freeboard will give more room in the cabin, but will increase weight and drag, compromising speed. A higher freeboard, such as used on ocean liners, also helps weather waves and so reduce the likelihood of being washed over by full water waves. A low-freeboard vessel is susceptible to taking in water in rough seas. Freighter ships and warships use high freeboard designs to increase internal volume, which also allows them to satisfy International Maritime Organization The International Maritime Organizatio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
