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Marking Otoliths by Immersion of Marine Fish Larvae in Tetracycline
Author(s) -
Hettler William F.
Publication year - 1984
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(1984)113<370:mobiom>2.0.co;2
Subject(s) - diel vertical migration , tetracycline , photoperiodism , larva , biology , fish <actinopterygii> , zoology , fishery , botany , biochemistry , antibiotics
Otoliths of the larvae of spot Leiostomus xanthurus and pinfish Lagodon rhomboides were marked with a band that fluoresced in ultraviolet (UV) light after live larvae had been immersed for 1–2 hours in tris‐buffered, 100–500‐mg/liter solutions of tetracycline in a 1% NaCl solution. Dimethyl sulfoxide did not significantly increase tetracycline uptake. After otoliths were marked, their radii increased approximately 18% in 8 days for spot and 15% for pinfish, but distinct daily growth increments could not be detected even though diel periodicities in feeding and photoperiod were provided in the laboratory. Received October 31, 1983 Accepted March 19, 1984