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Updated: Jul 7, 2026

Necropsy-based Wild Fish Health Assessment
Published on: September 11, 2018
Unusual paralytic shellfish poisoning toxins in Cayuga Lake, New York
Zacharias J Smith1, Gregory L Boyer2
1USDA Agricultural Research Service, Hydrology and Remote Sensing Laboratory, 10300 Baltimore Ave, Beltsville, MD, 20705, USA; State University of New York College of Environmental Science and Forestry, Department of Chemistry, 1 Forestry Dr., Syracuse, NY, 13210, USA.
Abstract:
Cyanobacteria blooms were detected in 2017 and 2018 in Cayuga Lake, New York, with paralytic shellfish poisoning toxins (PSPTs) the primary toxin detected. Analysis of these samples by HPLC with chemical oxidation, receptor binding assay, ELISA, and LC-MS/MS confirmed the presence of PSPTs but each method gave highly unusual results based on the theory establishing each method. The structures of the toxins could not be identified and may be 'unusual' or unelucidated PSPTs.
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