Accuracy of a modified catch-effort method for estimating fish density in large rivers (Warta River, Poland)
Penczak, T.; Romero, T.E. (1990). Accuracy of a modified catch-effort method for estimating fish density in large rivers (Warta River, Poland), in: Cowx, I.G. (Ed.) Developments in electric fishing. pp. 191-196
In: Cowx, I.G. (Ed.) (1990). Developments in electric fishing. Fishing News Books/Wiley-Blackwell: New Jersey. ISBN 0-85238-166-2. 358 pp., meer
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