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HABs taxon details

Checked: verified by a taxonomic editorHeterosigma akashiwo (Y.Hada) Y.Hada ex Y.Hara & M.Chihara, 1987

marine
Hada Y. 1967. Protozoan plankton of the Inland Sea, Setonaikai I. The Mastigophora. Bull. Suzugamine Women’s Coll., Nat. Sci. 14: 1-26. [details]   
Trusted: edited by a thematic editorDistribution Seto Inland Sea  
Trusted: edited by a thematic editortype locality contained in Seto Inland Sea [details]
Trusted: edited by a thematic editorDistribution Heterosigma akashiwo is distributed almost...  
Trusted: edited by a thematic editorDistribution Heterosigma akashiwo is distributed almost worldwide, from the Arctic to the tropics.The available evidence has shown very little variation in rDNA sequences (>99.8% similarity) [details]
Guiry, Michael D. (2015). Heterosigma akashiwo (Y.Hada) Y.Hada ex Y.Hara & M.Chihara, 1987. In: Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Accessed through: Moestrup, Ø.; Akselmann, R.; Fraga, S.; Hoppenrath, M.; Iwataki, M.; Komárek, J.; Larsen, J.; Lundholm, N.; Zingone, A. (Eds) (2009 onwards). IOC-UNESCO Taxonomic Reference List of Harmful Micro Algae at http://www.marinespecies.org/hab/aphia.php?p=taxdetails&id=160585 on 2017-11-19

Date
action
by
2005-06-17 10:15:26Z
created
2008-11-20 10:21:18Z
changed
2010-12-13 10:09:16Z
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2015-06-26 12:00:51Z
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original description Hada Y. 1967. Protozoan plankton of the Inland Sea, Setonaikai I. The Mastigophora. Bull. Suzugamine Women’s Coll., Nat. Sci. 14: 1-26. [details]   

additional source Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. , available online at http://www.algaebase.org [details]   

additional source Tomas, C.R. (Ed.). (1997). Identifying marine phytoplankton. Academic Press: San Diego, CA [etc.] (USA). ISBN 0-12-693018-X. XV, 858 pp., available online at http://www.sciencedirect.com/science/book/9780126930184 [details]   

additional source Streftaris, N.; Zenetos, A.; Papathanassiou, E. (2005). Globalisation in marine ecosystems: the story of non-indigenous marine species across European seas. Oceanogr. Mar. Biol. Ann. Rev. 43: 419-453. (look up in IMIS[details]  Available for editors  PDF available 

additional source Chang F. H., Anderson C. & Boustead N. C. 1990. First record of a Heterosigma (Raphidophyceae) bloom with associated mortality of cage-reared salmon in Big Glory Bay, New Zealand. New Zealand. J. Mar. Freshw. Res. 24: 461-469. [details]   

additional source Honjo T. 1993. Overview on bloom dynamics and physiological ecology of Heterosigma akashiwo. In: Toxic Phytoplankton Blooms in the Sea (Ed. by T.J. Smayda & Y. Shimizu), pp. 33-41. Elsevier, Amsterdam. [details]   

additional source Smayda T.J. 1998. Ecophysiology and bloom dynamics of Heterosigma akashiwo (Raphidophyceae). In: Physiological Ecology of Harmful Algal Blooms (Ed. by D.M. Anderson, A.D. Cembella & G.M. Hallegraeff), pp. 113-131. Springer-Verlag, Berlin Heidelberg. [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]   

additional source Liu J.Y. [Ruiyu] (ed.). (2008). Checklist of marine biota of China seas. China Science Press. 1267 pp. (look up in IMIS[details]  Available for editors  PDF available 

additional source Dyntaxa. (2013). Swedish Taxonomic Database. Accessed at www.dyntaxa.se [15-01-2013]., available online at http://www.dyntaxa.se [details]   

additional source Harper, M.A.; Cassie Cooper, V.; Chang, F.H.; Nelson, W.A.; Broady, P.A. (2012). Phylum Ochrophyta: brown and golden-brown algae, diatoms, silicoflagellates, and kin, in: Gordon, D.P. (Ed.) (2012). New Zealand inventory of biodiversity: 3. Kingdoms Bacteria, Protozoa, Chromista, Plantae, Fungi. pp. 114-163. [details]   

additional source Lutaenko, K.A.; Furota, T.; Nakayama; S.; Shin, K.; Xu, J. (2013). Atlas of Marine Invasive Species in the NOWPAP Region. Beijing: NOWPAP DINRAC (Northwest Pacific Action Plan, Data and Information Network Regional Center). 189 pp. [details]  OpenAccess publication 

new combination reference Hara, Y. & Chihara, C. 1987. Morphology, ultrastructure and taxonomy of the raphidophycean alga Heterosigma akashiwo. Bot. Mag. Tokyo 100: 151-163. [details]   

additional source  (ofChecked: verified by a taxonomic editorEntomosigma akashiwo Y.Hada, 1967) Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. , available online at http://www.algaebase.org [details]   

additional source  (ofChecked: verified by a taxonomic editorEntomosigma akashiwo Y.Hada, 1967) Tomas, C.R. (Ed.). (1997). Identifying marine phytoplankton. Academic Press: San Diego, CA [etc.] (USA). ISBN 0-12-693018-X. XV, 858 pp., available online at http://www.sciencedirect.com/science/book/9780126930184 [details]   

additional source  (ofChecked: verified by a taxonomic editorEntomosigma akashiwo Y.Hada, 1967) 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]   

basis of record  (ofChecked: verified by a taxonomic editorHeterosigma carterae (Hulbert) F.J.R.Taylor, 1992) Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. , available online at http://www.algaebase.org [details]   

additional source  (ofChecked: verified by a taxonomic editorHeterosigma carterae (Hulbert) F.J.R.Taylor, 1992) 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]   

basis of record  (ofChecked: verified by a taxonomic editorOlisthodiscus carterae Hulburt, 1965) Guiry, M.D. & Guiry, G.M. (2017). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. , available online at http://www.algaebase.org [details]   

additional source  (ofChecked: verified by a taxonomic editorOlisthodiscus carterae Hulburt, 1965) Tomas, C.R. (Ed.). (1997). Identifying marine phytoplankton. Academic Press: San Diego, CA [etc.] (USA). ISBN 0-12-693018-X. XV, 858 pp., available online at http://www.sciencedirect.com/science/book/9780126930184 [details]   

additional source  (ofChecked: verified by a taxonomic editorOlisthodiscus carterae Hulburt, 1965) 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]   

additional source  (ofChecked: verified by a taxonomic editorOlisthodiscus carterae Hulburt, 1965) Campbell, P.H. (1973). Studies on brackish water phytoplankton. UNC.SG.73.07. pp. 1-406. Chapel Hill: Sea Grant Publications, University of North Carolina. [details]  Available for editors  PDF available 

context source (Introduced species) Katsanevakis, S.; Bogucarskis, K.; Gatto, F.; Vandekerkhove, J.; Deriu, I.; Cardoso A.S. (2012). Building the European Alien Species Information Network (EASIN): a novel approach for the exploration of distributed alien species data. BioInvasions Records. 1: 235-245., available online at http://easin.jrc.ec.europa.eu [details]  Available for editors  PDF available 

context source (Schelde) Maris, T.; Beauchard, O.; Van Damme, S.; Van den Bergh, E.; Wijnhoven, S.; Meire, P. (2013). Referentiematrices en Ecotoopoppervlaktes Annex bij de Evaluatiemethodiek Schelde-estuarium Studie naar “Ecotoopoppervlaktes en intactness index”. Monitor Taskforce Publication Series, 2013-01. NIOZ: Yerseke. 35 pp. (look up in IMIS[details]   
 
 Present  Inaccurate  Introduced: alien 
 

From regional or thematic species database
Trusted: edited by a thematic editorDistribution Heterosigma akashiwo is distributed almost worldwide, from the Arctic to the tropics.The available evidence has shown very little variation in rDNA sequences (>99.8% similarity) [details]

Trusted: edited by a thematic editorHarmful effect Mortality of fish. There is disagreement regarding the cause(s) of the fish kills.  [details]

Trusted: edited by a thematic editorIdentification In the period 1971-c.1985, this species was often misidentified as Olisthodiscus luteus. [details]

Trusted: edited by a thematic editorIdentification H. akashiwo is distinguished from Olisthodiscus luteus by its only slightly flattened cells versus the very flattened cells of Olisthodiscus. Also Heterosigma cells rotate during swimming while Olisthodiscus does not.
Cells of H. akashiwo are slightly longer than wide, measuring 11-25 micrometer in length. The newly described species H. minor is almost round and measures 7-12 micrometer in diameter.
In fixed samples, H. akashiwo can be difficult to identify (see image below). It may be confused with other species whose cells contain several yellow or yellow-brown chloroplasts such as Pseudochattonella or naked stages of other silicoflagellates.  [details]
 

Host of
Checked: verified by a taxonomic editorHeterosigma akashiwo RNA virus (parasite)
Checked: verified by a taxonomic editorHeterosigma akashiwo virus 01 (parasite)

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