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Title

Microcystins and Other Blue-Green Algae Toxins Analyzed in Fish and Sediments from Washington Lakes

 
Publication number Date Published
13-03-001February 2013
VIEW NOW: Microcystins and Other Blue-Green Algae Toxins Analyzed in Fish and Sediments from Washington Lakes (Number of pages: 58) (Publication Size: 1159KB)




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Author(s) Johnson, A., M. Friese, and R. Coots
Description Microcystins and other blue-green algae toxins were analyzed in fish and sediment samples collected from nine Washington lakes with recurrent toxic algae blooms. The samples were analyzed by enzyme-linked immunosorbent assay (ELISA) and liquid chromatography/mass spectrometry/mass spectrometry (LC/MS/MS).

Microcystins or microcystin-like compounds were elevated in fish liver relative to other tissues. Microcystin-LA (MC-LA) was the only variant specifically detected in fish among the nine microcystins analyzed by LC/MS/MS. The detections were in four fish liver samples. Fish fillets showed no accumulation of the microcystins targeted in this analysis. MC-LA and MC-LR residues were found in the lake sediment samples. The other blue-green toxins analyzed – anatoxin-a, saxitoxin, domoic acid, and okadaic acid – were not detected in fish or sediment.
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Contact Art Johnson at 360-407-6766 or arjo461@ecy.wa.gov
Keywords saxitoxin, anatoxin, blue-green algae, microcystin, fish tissue, sediment, cyanobacteria
WEB PAGE Toxics studies
WATERSHED Water Resource Inventory Areas
(WRIA 03,WRIA 07,WRIA 12,WRIA 13,WRIA 15,WRIA 17,WRIA 23,WRIA 53)
DATA Environmental Information Management (EIM) #AJOH0061

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