Tetracycline marks visible in Baltic cod Gadus morhua otoliths stored for 40 years

Baltic cod Gadus morhua otoliths marked with oxytetracycline (OTC) in 1974-1975 had been sectioned and the sections stored in paper envelopes at room temperature in dry, dark conditions. After 40 years of storage, the historic OTC marks were still clearly visible showing that OTC is suitable for lon...

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Bibliographic Details
Published in:Journal of Fish Biology
Main Authors: Krumme, U., Bingel, F.
Language:unknown
Published: JOURNAL OF FISH BIOLOGY 2016
Subjects:
Artificial tagging
Baltic Sea
Gadus morhua
Mark-recapture
Otolith sections
tetracycline
Online Access:https://hdl.handle.net/11511/65947
https://doi.org/10.1111/jfb.13108
Description
Summary:Baltic cod Gadus morhua otoliths marked with oxytetracycline (OTC) in 1974-1975 had been sectioned and the sections stored in paper envelopes at room temperature in dry, dark conditions. After 40 years of storage, the historic OTC marks were still clearly visible showing that OTC is suitable for long-term chemical marking of otoliths. They were, however, noticeably paler than marks in recently recaptured and archived Baltic G. morhua otoliths, chemically tagged with tetracycline at similar dosage to the historic otoliths. (C) 2016 The Fisheries Society of the British Isles

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