Pediastrum tetras (Ehrenb.) Ralfs, 1844

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Stauridium tetras (syn. Pediastrum tetras)

OCCURRENCE: summer, Vistula Lagoon,  LIFE FORM:  coenobium of cells divided by a deep groove, external cells with 2 short cone-like processes CENOBIUM SIZE: 15-74 µm

Photographer/artist Janina Kownacka

Additional image information

Title
Stauridium tetras (syn. Pediastrum tetras)
Photographer/artist
Janina Kownacka
Copyright holder
Janina Kownacka
Copyright stamp
jmkownacka
Institute
National Marine Fisheries Research Institute
Contributing organisation
HELCOM-PEG
Contributor
Janina Kownacka
Caption
OCCURRENCE: summer, Vistula Lagoon,  LIFE FORM:  coenobium of cells divided by a deep groove, external cells with 2 short cone-like processes CENOBIUM SIZE: 15-74 µm
Sampling date
June 2011
Geographic area
Baltic Sea - The Gulf of Gdansk
Location
Polska
Latitude, degree
54
Latitude, minute
36.1
Longitude, degree
19
Longitude, minute
54.1
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
Light microscopy
Preservation
Lugols iodine
Stain
No stain
Image galleries
HELCOM-PEG

Synonym names

  • Stauridium tetras

Description

IDs in other systems
Tropic type
A

Biovolumes

Species Pediastrum tetras
Author (Ehrenberg) Ralfs 1844
Division CHLOROPHYTA
Class Chlorophyceae
Order CHLOROCOCCALES
Trophy AU
Geometric shape cylinder
Formula p/4*d^2*h
Size class 1 2 3 4 5 6
Unit coenobium coenobium coenobium coenobium coenobium coenobium
Size range coen.: 4-6x15-20 coen.: 4-6x20-35 coen.: 4-6x35-50 coen.: 6-10x15-20 coen.: 6-10x20-35 coen.: 10-12x20-35
Height(h), µm 5.0 5.0 5.0 8.0 8.0 11.0
Diameter(d1), µm 17.5 27.5 42.5 17.5 27.5 27.5
No. of cells/counting unit 8 8 16 8 8 8
Calculated volume, µm3 1 202 2 968 7 090 1 923 4 749 6 530
Calculated Carbon pg/counting unit 191 447 1 056 297 695 937

Source

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 Biovolumes and size-classes of phytoplankton in the Baltic Sea HELCOM Balt.Sea Environ. Proc. No. 106, 144pp. (PDF),
PEG_BVOL.zip

Change History

  • 2021-10-12 16:58:57 Janina Kownacka - Updated media metadata for Pediastrum tetras_2.jpg
  • 2012-06-08 08:22:56 Janina Kownacka - Updated media metadata for Pediastrum tetras_3.jpg
  • 2012-06-08 08:20:17 Janina Kownacka - Added media: Pediastrum tetras_3.jpg
  • 2012-06-08 08:19:23 Janina Kownacka - Updated media metadata for Pediastrum tetras_2.jpg
  • 2012-06-08 08:11:44 Janina Kownacka - Added media: Pediastrum tetras_2.jpg
  • 2012-06-06 11:26:20 Irina Olenina - Updated media metadata for Pediastrum tetras_1.jpg
  • 2012-06-06 11:25:28 Irina Olenina - Added media: Pediastrum tetras_1.jpg