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Illustration of Gyrodinium species
Gyrodinium species
Pyrodinium bahamense, considered the sister taxon to Alexandrium, is a tropical euryhaline dinoflagellate found mainly in the Atlantic Ocean. P. bahamense is a major cause of seafood toxicity and cause of paralytic shellfish poisoning, especially in Southeast Asia.
Pyrodinium bahamense
Illustration of Amphidinium crassum (Dinoflagellate)
Amphidinium crassum (Dinoflagellate)
Illustration of Amphidinium operculatum (Dinoflagellate) , an epi-benthic/epiphytic algae that is considered toxic and linked to ciguatera toxins.
Amphidinium operculatum (Dinoflagellate)
Illustration of a dinoflagellate
Dinoflagellate 1
Illustration of a second type of dinoflagellate
Dinoflagellate 2
Illustration of a third Dinoflagellate
Dinoflagellate 3
Illustration of a dinoflagellate cyst
Dinoflagellate cyst 1
Illustration of a second type of Dinoflagellate cyst
Dinoflagellate cyst 2
Illustration of a third type of Dinoflagellate cyst
Dinoflagellate cyst 3
Illustration of several different forms of Dinoflagellates
Dinoflagellates
Illustration of Dinophysis acuminate, a dinoflagellate. D. acuminata is a planktonic toxic bloom-forming species. The most extensive blooms have been reported from the summer and fall months. Blooms have been reported from many parts of the world.
Dinophysis acuminata (Dinoflagellate)
Illustration of a flagellated Dinoflagellate
flagellated Dinoflagellate
Illustration of Karlodinium micrum
Karlodinium micrum
Illustration of Pfiesteria piscicida (Dinoflagellate) , responsible for many harmful algal blooms in the 1980s and 1990s on the coast of North Carolina and Maryland. The species name piscicida means
Pfiesteria piscicida (Dinoflagellate)
Illustration of P. Shumwayae (Dinoflagellate)
Pfiesteria shumwayae (Dinoflagellate)
Illustration of P. micans (Dinoflagellate)
Prorocentrum micans (Dinoflagellate)
Illustration of Prorocentrum minimum (Dinoflagellate) . P. minimum is a bloom-forming planktonic species in temperate, brackish waters to tropical regions; mostly estuarine, but also neritic. Due to its small size, often lost or overlooked in field samples. Cells are active swimmers. P. minimum is a toxic species; it produces venerupin (Hepatotoxin) which has caused shellfish poisoning resulting in gastrointestinal illnesses in humans and a number of deaths.
Prorocentrum minimum (Dinoflagellate)
Illustration of Akashiwo sanguinea (Dinoflagellate)
Akashiwo sanguinea (Dinoflagellate)
Illustration of Ceratium furca (Dinoflagellate)
Ceratium furca (Dinoflagellate)
Illustration of Ceratium furca (Dinoflagellate)
Ceratium spp. (Dinoflagellate)
Illustration of Gymnodinium catenatum
Gymnodinium catenatum

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