Africa's Great Lakes

The African Great Lakes are divided among three different catchments (river basins), and a number, such as Lake Turkana, have internal drainage systems. The following, in order of size from largest to smallest, are included on most lists of the African Great Lakes:
Lake Victoria
Lake Tanganyika
Lake Malawi
Lake Turkana
Lake Albert
Lake Kivu
Lake Edward

For further information on these lakes go to Wikipedia:
http://en.wikipedia.org/wiki/African_Great_Lakes

From Eurekalert:
Lake Tanganyika Warming
The annual catch of the Lake Tanganyika fishery is estimated at about 198,000 tons per year, more than 20 times greater than the U.S. commercial fishery in the Great Lakes, he said. The nations of Burundi, Tanzania, Zambia and the Democratic Republic of Congo border the lake, which is the longest lake in the world and the second deepest.
The surface waters of Lake Tanganyika are the most biologically productive part of the lake. For the 1,400 years before 1900, those waters were no warmer than 75.7 F (24.3 degrees C). Since 1900, the lake's surface waters warmed 3 degrees F, reaching 78.8 degrees F (26 degrees C) in 2003, the date of the researchers' last measurement.

The researchers used sediment cores from the lake bed to reconstruct the 1,500-year history of the lake. The scientists analyzed the cores for chemicals produced by microbes and left in the sediments to determine the lake's past temperature and productivity.
Because sediment is deposited in the lake in annual layers, the cores provide a detailed record of Lake Tanganyika's past temperatures and productivity and of the regional wildfires.
The instrument record of lake temperatures from the 20th century agrees with the temperature analyses from the cores, Cohen said.
The cores were extracted as part of the UA's Nyanza Project, a research training program that brought together U.S. and African scientists and students to study tropical lakes. The National Science Foundation funded the project.

http://www.eurekalert.org/pub_releases/2010-05/uoa-twi051710.php