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Updated: Feb 3, 2026

Handling and Tagging Techniques for Implanting Juvenile American Shad with a New Acoustic Microtransmitter
Published on: June 14, 2024
No apparent negative tagging effects after 13 years at liberty for lemon shark, Negaprion brevirostris implanted with
Matthew J Smukall1,2, Steven T Kessel2,3, Bryan R Franks2,4
1Department of Fisheries and Ocean Sciences, University of Alaska Fairbanks, Fairbanks, Alaska, USA.
Abstract:
An intact and uncompromised internal acoustic transmitter was non-lethally recovered from a lemon shark Negaprion brevirostris, after 13 years at liberty. The shark, first tagged at an estimated age of 2 years old near South Bimini, Bahamas in 2004, was recaptured in 2017 with a total length of 264 cm. The tagged shark displayed typical growth rate, pregnancy, natal homing and pupping behaviour of other individuals in this population. This observation provides important evidence regarding the effects from long-term retention of implanted acoustic transmitters in a carcharhinid shark.
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