Strains of the species from Gulf of Maine, North-West Atlantic, have been confirmed to produce domoic acid at the levels 0.06-1.1 ng/ml.
Luciano F Fernandes, Katherine A Hubbard, Mindy L Richlen, Juliette Smith, Stephen S Bates, James Ehrman, Claude Léger, Luiz L.Mafra Jr, David Kulis, Michael Quilliam, Katie Libera, Linda McCauley, Donald M Anderson. (2014). Diversity and toxicity of the diatom Pseudo-nitzschia Peragallo in the
Gulf of Maine, Northwestern Atlantic Ocean. <em>Deep-Sea Research II.</em> 103, 139–162.