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DIVISION
CLASS
ORDER
Sphaeropleales
FAMILY
Neochloridaceae
GENUS
SPECIES
Planktosphaeria gelatinosa, G.M.Smith , 1918
Morphological Characteristics

Cells are spherical, in a homogenous, colourless, ± defined mucilage envelope, solitary or small groups surrounded by a gelatinous mass. The chloroplasts (in mature cells) are several parietal disks (angular, five-sided), each with one pyrenoid, in the very young cells have a single parietal bell shaped chloroplast but as the cell grows the number chloroplast increases.
 
 
 

 

Morphological Data
Distinctive morphometric characters
  • Cell Diameter: from 4 to 25 µm
  • Diameter of colony: up to 150 µm
Distribution

Freshwater species. Found in the metaphyton of ditches, bogs, ponds, and lakes. Common, distributed in temperate zone of Europe and North America.

 

Distribution: Europe: Baltic Sea (Hällfors 2004), Britain (John & Tsarenko 2002, Whitton et al. 2003), Germany (Täuscher 2014), Romania (Caraus 2002, Caraus 2012), Spain (Cambra Sánchez, Álvarez Cobelas & Aboal Sanjurjo 1998, Fanés Treviño, Comas González & Sánchez Castillo 2009, Pérez, Maidana & Comas 2009, Pérez, Comas & Maidana 2010). North America: Arkansas (Smith 2010). Asia: China (Hu & Wei 2006). Australia and New Zealand: New Zealand (Broady et al. 2012), Queensland (Day et al. 1995).

Notes

Toxicity:

Not reported.

Resistence Stages:

Not reported.

References

Das Phytoplankton des Susswassers: Systematik und Biologie 7.T., Halfte. Chlorophyceae (Grunalgen), Ordnung: Chlorococcales / von J. Komarek, B. Fott., Stuttgart : E. Schweizerbart'sche Verlagsbuchhandlung, Huber-Pestalozzi G., 1983, 1044

Freshwater Algae of North America. Ecology and Classification, Academic Press, Elsevier Science (USA), Wehr J.D., Sheath R.G. (eds.), 2003, 918

Checklist of Baltic Sea Phytoplankton Species. Baltic Sea Environment Proceedings No. 95, Helsinki Commission Baltic Marine Environment Protection Commission, Hällfors G., 2004,

Biovolumes and size-classes of phytoplankton in the Baltic Sea, HELCOM Balt.Sea Environ. Proc. No. 106, Olenina I., Hajdu S., Edler L., Andersson A., Wasmund N., Busch S., Göbel J., Gromisz S., Huseby S., Huttunen M., Jaanus A., Kokkonen P., Ledaine I. and Niemkiewicz E., 2006, 1-144

SHAPE
Shape Type
simple
Shape Unit
Cell
Cod:
1 - Sphere
Surface Area
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Volume
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