A photo-electric fish counter
By: by W.H. Bell and M.C. Armstrong.
Contributors: Armstrong, M. C., joint author.
Series: Fisheries Research Board of Canada. Technical report; no. 215
Publisher: Fisheries Research Board of Canada, Biological Station
Published: 1970
Place of publication: Nanaimo, B.C
Language: eng
Number of pages: 23
Subjects: Fishes -- Counting.; Optoelectronic devices.
Notes: Bibliography: p. 8.