HABs taxon details
original description
Quod J.P. 1994. Ostreopsis mascarenensis sp. nov. (Dinophyceae), a new toxic dinoflagellate from coral reefs in the South West Indian Ocean. Crypt., Algol. 15: 243-252. [details]
basis of record
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
basis of record
Gómez, F. (2005). A list of free-living dinoflagellate species in the world's oceans. <em>Acta Bot. Croat.</em> 64(1): 129-212. [details]
additional source
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. <em>World-wide electronic publication, National University of Ireland, Galway.</em> searched on YYYY-MM-DD., available online at http://www.algaebase.org [details]
additional source
Moestrup, Ø., Akselman, R., Cronberg, G., Elbraechter, M., Fraga, S., Halim, Y., Hansen, G., Hoppenrath, M., Larsen, J., Lundholm, N., Nguyen, L. N., Zingone, A. (Eds) (2009 onwards). IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae., available online at http://www.marinespecies.org/HAB [details]
toxicology source
Lenoir S., Ten-Hage L., Turquet J., Quod J.-P., Bernard C. & Hennion M.-C. 2004. First evidence of palytoxin analogues from an <i>Ostreopsis mascarenensis</i> (Dinophyceae) benthic bloom in Southwestern Indian Ocean. J. Phycol. 40: 1042-1051. [details]
ecology source
Hansen, P. J.; Tillmann, U. (2020). Mixotrophy in Dinoflagellates: Prey Selection, Physiology and Ecological Importance in Dinoflagellates: Classification, Evolution, Physiology and Ecological Significance. <em>Ed: Subba Rao Durvasula. Publisher: Nova Science Publishers, Inc. New York, USA.</em> [details]
ecology source
Mitra, A.; Caron, D. A.; Faure, E.; Flynn, K. J.; Leles, S. G.; Hansen, P. J.; McManus, G. B.; Not, F.; Do Rosario Gomes, H.; Santoferrara, L. F.; Stoecker, D. K.; Tillmann, U. (2023). The Mixoplankton Database (MDB): Diversity of photo‐phago‐trophic plankton in form, function, and distribution across the global ocean. <em>Journal of Eukaryotic Microbiology.</em> 70(4)., available online at https://doi.org/10.1111/jeu.12972 [details]
ecology source
Faust, M. A.; Morton, S. L.; Q, J. P. (1996). Further SEM studies of marine dinoflagellates: the genus Ostreopsis (Dinophyceae). <em>J. Phycol.</em> 32: 1053-1065. [details]
From regional or thematic species database
Description Very large cells, broadly oval in shape, markedly flattened. Epitheca slightly convex in contrast to the hypotheca which is more flat. Apical pore plate Po long (27 μm) and slightly curved. Plate 2’’’’ hexagonal, large and elongated with a L/W ratio of 2.55. The thecal surface is smooth and covered by numerous shallow round depressions (1–1.2 μm in diameter) containing one or several thecal pores (0.2–0.4 μm in diameter) in their centre. The statement by Faust et al. (1996) indicating that the pores are round, containing two small openings with a smooth edge and a diameter of 0.60 μm probably refer to the depressions.
[details]
Harmful effect Toxic strains known from the Mascareignes Archipelago, SW Indian Ocean (Lenoir et al. 2004 above) [details]
Harmful effect Produces palytoxin analogues (polyethers). Two compounds isolated, known as mascarenotoxin-A and -B isolated. Toxic to mice. Possibly responsible for palytoxin poisoning, which in humans results in cramps, nausea, diarrhoea, etc, after eating of crabs and certain fish, see Lenoir et al. (2004). [details]
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