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Mass Marking of Fingerling Largemouth Bass by Fin‐Clipping Followed by Freeze‐Cauterization of the Wound
Author(s) -
Boxrucker J. C.
Publication year - 1982
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 - 10.1577/1548-8659(1982)2<94:mmoflb>2.0.co;2
Subject(s) - micropterus , cauterization , bass (fish) , fishery , clipping (morphology) , fish <actinopterygii> , anatomy , biology , zoology , medicine , surgery , linguistics , philosophy
An estimated 162,828 fingerling largemouth bass (Micropterus salmoides) were marked in 153 man‐days (1,064 fish per man‐day) by a combination of fin‐clipping followed by freeze‐cauterization of the wound with liquid nitrogen. This technique provides an easily identifiable permanent mark that can be applied to small fish. Instantaneous mortality was negligible and delayed mortality (1 week) resulting from marking and handling was estimated to be 17.1%.