Lake Tanganyika Fish Studies (AUDIO) University of Wyoming Your browser does not support the audio element. Caption 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. Credit University of Wyoming Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.