We have developed a trace metals analysis procedure for fish tissue with detection by inductively coupled plasma mass spectrometry. Analyses were conducted for arsenic, cadmium, chromium, copper, lead, manganese, nickel, silver, and zinc. Quantitation limits are in the low micro-gram per gram (ppb) range. Brown and Rainbow trout species were collected from Dillon Reservoir, Georgetown Lake, and Jefferson Lake, Colorado. Waters of Dillon Reservoir and Georgetown Lake receive mine drainage thus trout tissue samples collected from these waters are expected to contain measurable concentrations of metals. Specifically, trout from Dillon Reservoir are exposed to elevated concentrations of zinc, manganese, and lesser levels of copper. Trout from Georgetown Lake are exposed to elevated levels of zinc. Tissues samples from these respective lakes contain low levels of these elements.

Trace metals in trout species collected from high altitude Colorado lakes

249th National Meeting (2015)

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