Title
The Application of Dual-Beam Acoustic Survey Techniques for Fish Population Estimation in Lakes
Publication Date
1985
Publication Title
Proceedings of the Symposium on Small Hydropower and Fisheries
Start Page
472
End Page
474
Editors
Olson FW;White RG;Hamre RH;
Publication Place
Bethesda, MD
Publisher
American Fisheries Society
Abstract
Hydroacoustic surveys were conducted on Cultus Lake in British Columbia and Lake Oahe in South Dakota in July, 1983. Dual-beam and echo integration techniques were employed. Estimates of pelagic fish abundance were obtained at Cultus Lake compared well with those obtained from mid-water trawl samples. Acoustic target strength data collected at Lake Oahe indicated a bimodal size distribution of fish; mid-water trawl samples indicated that this distribution was due to the presence of adult and juvenile rainbow smelt.
Notes
ISBN 0-913235-37-7