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Tanganyika lake

Great Lakes


Among the chain of lakes on the bottom of the Western Great Rift Valley, Lake Tanganyika is outstanding for its extraordinary north-south extension (670 km) and depth (1,470 m). It is the second largest of African lakes, the second deepest (next to L. Baikal) and the longest lake of the world. Its very ancient origin, only rivaled by such old lakes as Baikal, and a long period of isolation resulted in the evolution of a great number of indigenous organisms, including brilliantly colored cichlid fishes, well-known gastropods with the appearance of marine snails, and so on. Of the 214 species of native fishes in the lake, 176 are endemic; the number of endemic genera amounts to 30 in cichlids and 8 in non- cichlid fishes.

The surrounding areas are mostly mountainous with poorly developed coastal plains except on part of the east side. Especially on the western coast, steep side-walls of the Great Rift Valley reaching 2,000 m in relative height form the shoreline. The sole effluent river, the Lukuga, starts from the middle part of western coast and flows westward to join the Zaire River draining into the Atlantic.
Agriculture, livestock raising and the processing of these products as well as the mining (tin, copper, coal, etc.) are the main industries in the drainage basin of L. Tanganyika. Fishery products, the "Tanganyika sardine" (Stolothrissa tanganikae, Herring Family) in particular, are also important for local economy. Well-developed regular ship lines connect Kigoma (Tanzania), Kalemie (Zaire) and other coastal towns as essential part of the inland traffic system of east Africa.

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