A University of Wyoming researcher is gathering information to help sustain fish populations in the world's second largest freshwater lake. Botanist Catherine Wagner is studying two sardine species in East Africa's Lake Tanganyika. She says the fish populations are declining, but little is known about their movements, even though they are the main source of protein for millions of people living around the lake ... (africanfish.MP3, 22 seconds, "... fisheries management in the lake.")
Lake Tanganyika is 418 miles long, almost a mile deep and holds 18 percent of the world's unfrozen surface freshwater. Wagner's work is supported by The Nature Conservancy.