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The Tunasan River (''Tagalog: Ilog ng Tunasan''), also referred to as the Tunasan-Cuyab River, is a river system in the Philippines. This river begins in Dasmariñas, Cavite, and ends 9 kilometers later at the border of Muntinlupa, and San Pedro, Laguna. It is one of 21 major tributaries of Laguna de Bay. The river system has six adjoining creeks: *There are two in San Pedro, Laguna and Dasmariñas, Cavite *Three creeks joins the system from the ponds of The Filipinas Golf Club, and *The last one connects from the drainage system of RMT Complex. The depth of the Tunasan currently varies from two meters to 0.25 meters Tunasan got its name from a medicinal plant, the ''Opuntia tuna'' variety of prickly pears, which the Spanish imported from Mexico and the West Indies when they colonized the Philippines. The tunasan received media attention in 1994 and 1995 due to a series of "fish kills" caused by the high Biochemical Oxygen Demand from decomposing water lilies, and by the profusion of residential wastes that find their way into the river during the rainy season. ==See also== * Laguna de Bay * Laguna Lake Development Authority * List of rivers and esteros in Manila 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Tunasan River」の詳細全文を読む スポンサード リンク
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