Melosira arctica (Ehrenb.) Dickie ex Ralfs in A.Pritch.

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Melosira arctica

Resting spores. Lugol sample (BF)

Photographer/artist Mats Kuylenstierna

Additional image information

Title
Melosira arctica
Photographer/artist
Mats Kuylenstierna
Copyright holder
Maria Kuylenstierna
Institute
University of Gothenburg, Marine botany
Contributor
Bengt Karlson
Caption
Resting spores. Lugol sample (BF)
Image galleries
Kuylenstierna, Skagerrak-Kattegat

Description

IDs in other systems
Tropic type
A
Morphology
Collar close to valve apex
Other remarks
The Baltic material is referred to a special form or variety (Syvertsen & Hasle 1988)
Distribution: Arctic, Oslofjorden, Gullmarsfjorden, Baltic
Life form
Cells united in chains, pelagic or on ice
Size
Diameter: 10-50 µm
Resting spore
+
Literature
Hasle, G. R. & Syvertsen, E. E. 1996. Marine diatoms. In: Tomas, C. R. (ed.) Identifying marine diatoms and dinoflagellates. Academic Press, Inc., San Diego, p. 5-385.
Heimdal, B. R. 1973. The fine structure of the frustules of Melosira nummuloides and M. arctica (Bacillariophyceae). Norw. J. Bot. 205: 139-149.
Syvertsen, E. E. & Hasle, G. R. 1988. Melosira arctica in the Baltic Sea and in the Oslofjord (a preliminary note). USDQR Report 12: 79-84

Biovolumes

Species Melosira arctica
Author (Ehrenberg) Dickie ex Ralfs in Pritschard 1861
Division CHRYSOPHYTA (HETEROKONTOPHYTA)
Class Diatomophyceae (Bacillariophyceae)
Order EUPODISCALES (BIDDULPHIALES, CENTRALES)
Trophy AU
Geometric shape cylinder
Formula p/4*d^2*h
Size class 1 2 3 4 5 6 7 8
Unit cell cell cell cell cell cell cell cell
Size range 8x13 8-10x15-20 11-13x20-25 14x15-20 14x20-30 15x17-25 17x17-25 19x20-30
Height(h), µm 13.0 17.5 22.0 17.5 25.0 20.0 20.0 26.0
Diameter(d1), µm 8.0 9.0 12.0 14.0 14.0 15.0 17.0 19.0
No. of cells/counting unit 1 1 1 1 1 1 1 1
Calculated volume, µm3 653 1 113 2 487 2 693 3 847 3 533 4 537 7 368
Calculated Carbon pg/counting unit 55 85 163 174 233 217 266 394

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

  • 2014-03-27 12:23:13 Susanne Busch - Updated media metadata for Melosira arctica_3.jpg
  • 2014-03-27 12:21:08 Susanne Busch - Added media: Melosira arctica_3.jpg
  • 2013-05-14 07:35:00 Regina Hansen - Updated media metadata for Melosira arctica_2.jpg
  • 2013-05-14 07:34:34 Regina Hansen - Added media: Melosira arctica_2.jpg