Commitment to Excellence
Environmental Science (2011-2012)
Phnom Kravanh
Instructor: Dr. Taing You
New Species of Mekong
1. Sun Kimsean
2. Yeang Sokheng
3. Phirun Sopheavy
4. Thanthiva Akkharath
5. Kan Sivorn
6. Eng Savath
7. Vanna Yuk Van Neath
The Mekong River is a major river in Southeastern Asia and is one of the world’s greatest rivers, ranked number 10th largest river by length in the world. The basin of the Mekong River drains a total land area of 795,000 km2 from the eastern watershed of the Tibetan Plateau to the Mekong Delta. The Mekong River flows approximately 4,909 km through three provinces of China, continuing into Myanmar, Lao PDR, Thailand, Cambodia and Viet Nam before emptying into the South China Sea.
The Mekong River has many different kinds of names in many places. For example: Dza-chu (Tibet), Lancang Jiang (Jiang as river in China), Thailand and Laos as Mae Nam Khong (Mae Nam as river).
The Mekong River Basin is divided into 2 parts: Upper Mekong Basin and Lower Mekong Basin. The Tibetan Plateau, Three Rivers Area (Mekong, Salween, and Yangtze) and Lancang Basin form the Upper Mekong Basin, which composed of China and Myanmar. The Northern Highlands, Khorat Plateau, Tonle Sap Basin and Mekong Delta make up the Lower Mekong Basin, which composed of Thailand, Lao PDR, Cambodia and Vietnam.
The Mekong River holds more than 1,500 species of fish, including the Mekong giant catfish—the largest freshwater fish in the world—and the endangered Irrawaddy Mekong dolphins. Besides tigers and elephants, the Mekong’s forests sustain an extraordinary range of plants and birds, and extremely rare species such as douc langur and the saola.
At half the length of a bus and weighing up to 600kgs, the Mekong River’s giant freshwater stingray (Dasyatis laosensis) is the world’s