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Effects of capture and transmitter attachments on the swimming speed of large juvenile lemon sharks in the wild
Authors:L. F. Sundströ  m,&Dagger  ,S. H. Gruber,&dagger  
Affiliation:Göteborg University, Department of Zoology, Animal Ecology, Box 463, SE-405 30 Göteborg, Sweden;Bimini Biological Field Station and University of Miami, Rosenstiel School of Marine and Atmospheric Science, Miami, FL 33149-1098, U.S.A.
Abstract:The swimming speed of seven large juvenile lemon sharks Negaprion brevirostris following attachment of an external speed-sensing ultrasonic transmitter was significantly higher during the first 18 h after release compared to the average swimming speed obtained >48 h after release. The external speed-sensing transmitter can be used to monitor the voluntary swimming speed of large fishes in the field, but data during the first 24 h period should be excluded from analysis of natural speeds, at least from species similar in behaviour to N. brevirostris .
Keywords:speed-sensing    ultrasonic    telemetry    elasmobranch
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