WoRMS taxon details

Pfiesteria shumwayae Glasgow & J.M.Burkholder, 2001

246599  (urn:lsid:marinespecies.org:taxname:246599)

accepted
Species
marine
Glasgow, H.B., Burkholder J.M., Morton S.L. & Springer J. 2001. A second species of ichthyotoxic Pfiesteria (Dinamoebales, Dinophyceae). Phycologia 40: 234-245. [details]   
Description Small motile, biflagellated single-celled dinoflagellate, lightly armored, ovoid to biconical. Plate formula Po, cp, X, 4',...  
Description Small motile, biflagellated single-celled dinoflagellate, lightly armored, ovoid to biconical. Plate formula Po, cp, X, 4', 1a, 6'', 6c, PC, 5+s, 5''', 0p, 2''''. Cingulum equatorial, slightly displaced. Sulcus, not extending to antapex but extending to epitheca and 1', and lightly offset to the right. Nucleus spherical, typical dinokaryon, present in the hypotheca. Motile cells heterotrophic, feed via a tubular peduncle. Food vacuoles present.  [details]
Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Pfiesteria shumwayae Glasgow & J.M.Burkholder, 2001. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=246599 on 2024-03-28
Date
action
by
2007-09-25 15:09:59Z
created
2008-11-21 06:40:06Z
checked
2012-09-18 12:36:22Z
changed
2015-06-26 12:00:51Z
changed
2019-09-23 07:53:03Z
changed

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original description Glasgow, H.B., Burkholder J.M., Morton S.L. & Springer J. 2001. A second species of ichthyotoxic Pfiesteria (Dinamoebales, Dinophyceae). Phycologia 40: 234-245. [details]   

basis of record Guiry, M.D. & Guiry, G.M. (2023). 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 Vogelbein W.K., Lovko V.J., Shields J.D., Reece K.S., Mason P.L., Haas L.W. & Walker C.C. 2002. <i>Pfiesteria shumwayae</i> kills fish by micropredation not exotoxin secretion. Nature 418: 967-970. [details]   

additional source Jakobsen K.S., Tengs T., Vatne A., Bowers H.A., Oldach D.W., Burkholder J.M., Glasgow JrH.B., Rublee P.A. & Klaveness D. 2001. Discovery of the toxic dinoflagellate <i>Pfiesteria</i> in northern European waters. Proc. R. Soc. London B, 269: 211-214. [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 Burkholder, J.M. & Marshall, H.G. 2012. Toxigenic <i>Pfiesteria</i> species - updates on biology, ecology, toxins, and impacts. Harmful Algae 14, 196-230 , available online at https://doi.org/10.1016/j.hal.2011.10.022 [details]   
 
 Present  Present in aphia/obis/gbif/idigbio   Inaccurate  Introduced: alien  Containing type locality 
   

From regional or thematic species database
Description Small motile, biflagellated single-celled dinoflagellate, lightly armored, ovoid to biconical. Plate formula Po, cp, X, 4', 1a, 6'', 6c, PC, 5+s, 5''', 0p, 2''''. Cingulum equatorial, slightly displaced. Sulcus, not extending to antapex but extending to epitheca and 1', and lightly offset to the right. Nucleus spherical, typical dinokaryon, present in the hypotheca. Motile cells heterotrophic, feed via a tubular peduncle. Food vacuoles present.  [details]

Harmful effect Fish may be killed by Pfiesteria, and the killing mechanism has been claimed to be a toxin or attachment of the algae to the fish or a combination of both [details]

Identification Differences between Pfiesteria piscicida and Pfiesteria shumwayae plate structures: The 2' plate of Pfiesteria piscicida is bounded by six plates compared with seven plates in Pfiesteria shumwayae. Additionally, in Pfiesteria piscicida the 2' does not touch the intercalary, whereas in Pseudo-pfiesteria shumwayae it shares a common suture with the intercalary plate. As a result of the placement of the 2'/3' suture, the 2' plate is smaller and often more square in shape in Pfiesteria piscicida than in Pfiesteria shumwayae. Overall, the apical series is also more asymmetrical in Pfiesteria piscicida than in Pfiesteria shumwayae. The precingular series ('') is comprised of five plates in Pfiesteria piscicida and six plates in Pfiesteria shumwayae. The s.m. plate of Pfiesteria piscicida is smaller than that of Pfiesteria shumwayae relative to the size of the transverse flagellar pore. The PC plate originates at the right side of the sulcus adjacent to the cingulum (6c) and 5''' plate and covers the s.d.p. plate as well as a significant portion of the s.s. plate. It is possible that the PC plate also overlays one or more additional sulcal plates located to the right of the s.s and s.d.p plates. In Pfiesteria shumwayae, the PC plate is larger and appears to have a prominent elongation that extends further toward the posterior end of the sulcus than in Pfiesteria piscicida. The Po plate of Pfiesteria shumwayae is narrower relative to the X plate than in Pfiesteria piscicida. The suture between the 2' and 3' plates of Pfiesteria piscicida intersects the Po plate laterally, whereas the same suture is shifted dorsally and intersects the APC in Pfiesteria shumwayae from the rear.  [details]