Evaluation of Carlin tagging as a mark‐recapture technique for estimating total river runs of salmon smolts,Salmo salarL.

摘要

Abstract.Mark‐recapture experiments using Carlin tags on migrating wild smolts in the River Bush indicated that 16·4 were not recovered under total trapping conditions. The experimental procedure was also found to delay the migration of the smolts by varying amounts. The implications for the use of this technique as a means of assessing both smott run sizes in partially trapped rivers and smolt migration speeds are discuss