2011-05-232011-05-231951Accession # 11504http://hdl.handle.net/1969.3/280757 pages; available for download at the link below.The primary objectives of the fish trap have been stated in previous reports. Determination of the role played by a natural pass is the key objective.en-USartificial passesfisheries managementSurvey of the Effects of a Natural Pass on Fish Population Quarterly Report - January 1, 1951 to March 31, 1951Technical Report