Monitoring of shrimp and farmed fish sold in Canada for cyanobacterial toxins.
Sixty-one samples of shrimp and 32 samples of farmed fish collected from retail markets across Canada were analyzed for cyanobacterial toxins, including microcystins, paralytic shellfish poisons (saxitoxins), cylindrospermopsin, and β-N-methylamino-L-alanine, using established  methods of analysis. None of these toxins were detected in any of the samples. Some shrimp samples screened for paralytic shellfish poisons showed the presence of unknown peaks in the chromatogram after periodate oxidation.
Health Canada, Food Research Division, 251 Sir Frederick Banting Driveway, 2203D, Ottawa, Ontario, Canada K1A 0K9. barbara.niedzwiadek@hc-sc.gc.ca
Barbara
B
Niedzwiadek
Peter M
PM
Scott
Ben P-Y
BP
Lau
D000818:Animals; D001427:Bacterial Toxins / Q000032:analysis*; D002170:Canada; D003257:Consumer Product Safety; D000087522:Cyanobacteria Toxins; D005399:Fishes; D005506:Food Contamination / Q000032:analysis*; D005516:Food Microbiology; D006801:Humans; D008387:Marine Toxins / Q000032:analysis*; D052998:Microcystins / Q000032:analysis*; D033561:Penaeidae / Q000737:chemistry; D017747:Seafood / Q000032:analysis*; D012758:Shellfish / Q000032:analysis*
D001427:Bacterial Toxins; D000087522:Cyanobacteria Toxins; D008387:Marine Toxins; D052998:Microcystins