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Immersion Marking of Larval and Juvenile Hatchery‐Produced Striped Bass with Oxytetracycline
Author(s) -
Secor David H.,
White Miller G.,
Dean John Mark
Publication year - 1991
Publication title -
transactions of the american fisheries society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.696
H-Index - 86
eISSN - 1548-8659
pISSN - 0002-8487
DOI - 10.1577/1548-8659(1991)120<0261:imolaj>2.3.co;2
Subject(s) - juvenile , hatchery , fishery , oxytetracycline , larva , biology , bass (fish) , morone saxatilis , morone , stocking , zoology , significant difference , otolith , fish <actinopterygii> , ecology , microbiology and biotechnology , antibiotics , statistics , mathematics
Larval and juvenile striped bass Morone saxatilis were mass‐marked by oxytetracycline immersion as part of normal hatchery procedures. In 1988, 70% of samples of 1.2 million juveniles treated en route to stocking had a fluorescent mark in their otoliths. In 1989, all samples of 7 million larvae (6–9 d old) treated during transport to grow‐out ponds had marked otoliths. Marks were retained for at least 5 and 7 months by larvae and juveniles, respectively. There was no significant difference between the mortality rates of marked and unmarked larvae to 30 d after hatch.