Field use of an injected ferromagnetic tag on the snow crab (Chionoecetes opilio O. Fab.)

This paper describes a crab tagging method with a potential for retention during ecdysis. Miniature ferromagnetic tags are injected mechanically into the dactylus of crab legs and are recovered in commercial landings using a magnetic detector.The method was tested in the field and shown to be practi...

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Bibliographic Details
Published in:ICES Journal of Marine Science
Main Authors: Bailey, R. F. J., Dufour, R.
Format: Text
Language:English
Published: Oxford University Press 1987
Subjects:
Articles
Chionoecetes opilio
Snow crab
Online Access:http://icesjms.oxfordjournals.org/cgi/content/short/43/3/237
https://doi.org/10.1093/icesjms/43.3.237
Description
Summary:This paper describes a crab tagging method with a potential for retention during ecdysis. Miniature ferromagnetic tags are injected mechanically into the dactylus of crab legs and are recovered in commercial landings using a magnetic detector.The method was tested in the field and shown to be practical for the rapid tagging of large numbers of crabs at sea. A statistically valid estimate of stock size was calculated.

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