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Dietary calcein marking of brook trout, Atlantic salmon, yellow perch, and coho salmon scales

January 1, 2006

Brook trout Salvelinus fontinalis, Atlantic salmon Salmo salar, coho salmon Oncorhynchus kisutch, and yellow perch Perca flavescens fed calcein for 5 d showed characteristic calcein scale marks 7-10 d postmarking. In fish fed 0.75 or 1.25 g of calcein per kilogram of feed, the percentage of fish that exhibited a calcein mark was 100% in brook trout, 93-98% in Atlantic salmon, 60% in yellow perch, and 0% in coho salmon. However, when coho salmon were fed 5.25 g calcein/kg feed, 100% marking was observed 7-10 d postmarking. Brook trout were successfully marked twice with distinct bands when fed calcein 5 months apart. Brook trout scale pixel luminosity increased as dietary calcein increased in experiment 2. For the second calcein mark, scale pixel luminosity from brook trout fed 1.25 g calcein/kg feed was numerically higher (P < 0.08) than scales from fish fed 0.75 g calcein/kg feed. Mean pixel luminosity of calcein-marked Atlantic salmon scales was 57.7 for fish fed 0.75 g calcein/kg feed and 55.2 for fish fed 1.25 g calcein/kg feed. Although feed acceptance presented a problem in yellow perch, these experiments provide evidence that dietary calcein is a viable tool for marking fish for stock identification. ?? Copyright by the American Fisheries Society 2006.

Citation Information

Publication Year 2006
Title Dietary calcein marking of brook trout, Atlantic salmon, yellow perch, and coho salmon scales
DOI 10.1577/M05-107.1
Authors D.C. Honeyfield, C.S. Ostrowski, J.W. Fletcher, J.W. Mohler
Publication Type Article
Publication Subtype Journal Article
Series Title North American Journal of Fisheries Management
Series Number
Index ID 70028763
Record Source USGS Publications Warehouse
USGS Organization

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