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Presence of the cyanobacterial hepatotoxin microcystin was detected by liquid chromatography-mass spectrometry in mussels (Mytilus trossulus) from Puget Sound, Washington. Microcystin was found in all but one mussel exposed to inflows from a lake, with maximum concentrations of 52.4 ppb. This is the first known report of marine bivalves in Puget Sound, Washington, accumulating microcystin from freshwater sources.
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Preece et al. (2015) studied this question.
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