Asterionella formosa Hassall

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Asterionella formosa

Photographer/artist Aimar Rakko

Additional image information

Title
Asterionella formosa
Photographer/artist
Aimar Rakko
Copyright holder
Aimar Rakko
Copyright stamp
aimar@limnos.ee
Institute
Institute of Agricultural and Environmental Sciences
Contributor
Aimar Rakko
Sampling date
07.07.2014
Geographic area
Lake - Estonia
Location
Lake Vagula
License
Creative Commons Attribution-NoDerivs 3.0 Unported
Technique
Light microscopy
Preservation
Lugols iodine
Contrast enhancement
DIC/Nomarski
Stain
Not described
Image galleries
Freshwater

Description

IDs in other systems

Subordinate taxa

Illustration Taxon name
Asterionella formosa var. ralfsii

Biovolumes

Species Asterionella formosa
Author Hassall 1850
Division CHRYSOPHYTA (HETEROKONTOPHYTA)
Class Diatomophyceae (Bacillariophyceae)
Order BACILLARIALES (PENNALES)
Trophy AU
Geometric shape parallelepiped
Formula l*w*h
Size class 1 2 3
Unit cell cell cell
Size range 3-4x40-60 3-4x60-80 3-4x80-100
Length(l1), µm 50.0 70.0 90.0
Width(w), µm 3.5 3.5 3.5
Height(h), µm 3.5 3.5 3.5
No. of cells/counting unit 1 1 1
Calculated volume, µm3 613 858 1 103
Calculated Carbon pg/counting unit 52 69 84

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

  • 2015-01-29 05:26:36 Aimar Rakko - Updated media metadata for Asterionella formosa_6.jpg
  • 2015-01-29 05:25:46 Aimar Rakko - Added media: Asterionella formosa_6.jpg
  • 2015-01-29 05:25:13 Aimar Rakko - Updated media metadata for Asterionella formosa_5.jpg
  • 2015-01-29 05:23:37 Aimar Rakko - Added media: Asterionella formosa_5.jpg
  • 2014-08-01 12:39:11 Birger Skjelbred - Updated media metadata for Asterionella formosa_4.jpg
  • 2014-08-01 12:36:37 Birger Skjelbred - Added media: Asterionella formosa_4.jpg
  • 2013-11-01 14:31:31 Ann-Turi Skjevik - Updated media metadata for Asterionella formosa_3.jpg
  • 2013-11-01 14:30:36 Ann-Turi Skjevik - Added media: Asterionella formosa_3.jpg
  • 2013-04-26 10:33:36 Janina Kownacka - Updated media metadata for Asterionella formosa_2.jpg
  • 2013-04-26 10:31:16 Janina Kownacka - Added media: Asterionella formosa_2.jpg
  • 2012-10-03 07:43:08 Ann-Turi Skjevik - Updated media metadata for Asterionella formosa_1.jpg
  • 2012-10-03 07:40:43 Ann-Turi Skjevik - Added media: Asterionella formosa_1.jpg