Dinophysis rotundata

Japanese strains of this species produce the toxin Dinophysistoxin-1, which causes diarrhetic shellfish poisoning, but North American strains are non-toxic.

Upper Newport Bay, Newport Beach, Orange County, CA. 3/16/13. © Joana Tavares and Peter J. Bryant.

Phylum Dinoflagellata; Dinokaryota; Dinophysiales

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