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A Reusable Ultrasonic Tag and Float Assembly for Use with Large Pelagic Fish
Author(s) -
Osborne Randall,
Bettoli Phillip W.
Publication year - 1995
Publication title -
north american journal of fisheries management
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.587
H-Index - 72
eISSN - 1548-8675
pISSN - 0275-5947
DOI - 10.1577/1548-8675(1995)015<0512:arutaf>2.3.co;2
Subject(s) - wildlife , unit (ring theory) , agency (philosophy) , pelagic zone , service (business) , float (project management) , fishery , fish <actinopterygii> , business , management , ecology , sociology , economics , marketing , biology , social science , mathematics education , mathematics
We developed an ultrasonic tag and float assembly that attaches to fish externally with suture thread. The assembly is positively buoyant and when the suture decomposes within a few weeks, the tag floats to the surface and can be retrieved and reused. We attached these tag–float assemblies to adult striped bass Morone saxatilis to study the survival of free‐ranging fish that had been caught with conventional angling gear and then released. We recovered 62 of 105 tags attached over a 16‐month period. The feeding and swimming abilities of tagged fish did not appear to be negatively affected by the tag–float assembly.