Oblea rotunda (Lebour) Balech ex Sournia, 1973
Oblea rotunda CPX (complex)
Cell size 30 µm. Almost spherical cell. Sulcus bordered by a list extending beyond the antapex of the cell. Grouped as Oblea rotunda complex by HELCOM PEG.
Photographer/artist Helena Höglander
Additional image information
- Title
- Oblea rotunda CPX (complex)
- Photographer/artist
- Helena Höglander
- Copyright holder
- Helena Höglander
- Institute
- Stockholm university, Department of Ecology, Environment and Plant Sciences
- Contributing organisation
- HELCOM-PEG
- Contributor
- Helena Höglander
- Caption
- Cell size 30 µm. Almost spherical cell. Sulcus bordered by a list extending beyond the antapex of the cell. Grouped as Oblea rotunda complex by HELCOM PEG.
- Sampling date
- 2017-05-22
- Geographic area
- Baltic Sea - Northern Baltic proper
- Location
- Askö, B1
- License
- Creative Commons Attribution-NoDerivs 3.0 Unported
- Technique
- Light microscopy
- Preservation
- Lugols iodine
- Contrast enhancement
- Phase contrast
- Stain
- No stain
- Image galleries
- HELCOM-PEG
Description
- IDs in other systems
- Dyntaxa ID: 238237
More info at http://www.artdata.slu.se/dyntaxa - AlgaeBase ID: 52492
More info at http://algaebase.org
- Dyntaxa ID: 238237
- Tropic type
- H
- Morphology
- Plate formula: Po, 3', 1a, 6'', 4c, 5''', 2'''', 5s. First apical plate is of meta-type
- Other remarks
Distribution: Widely- Life form
- Solitary
- Size
- Diameter = 22-34 µm
- Resting spore
- +
- Literature
- Dodge, J. D. 1982. Marine Dinoflagellates of the British Isles. Her Majesty’s Stationery Office, London. 303 pp.
Hansen, G. & Larsen, J. 1992. Dinoflagellater i danske farvande. In: Thomsen, H. A. (ed.) Plankton i de indre danske farvande. Havforskning fra Miljøstyrelsen, Copenhagen, p. 45-155.
Lebour, M. V. 1922. Plymouth peridinians. I. Diplopsalis lenticula and its relatives. J. mar. biol. Ass. U.K. 12: 795-812.
Lewis, J. 1990. The cyst-theca relationship of Oblea rotunda (Diplopsalidaceae, Dinophyceae). British phycological Journal. 25: 339-351.
Biovolumes
Species | Oblea rotunda |
---|---|
Division | DINOPHYTA (PYRROPHYTA) |
Class | Dinophyceae |
Order | PERIDINIALES |
SFLAG | CPX |
Trophy | HT |
Geometric shape | |
Formula | p/6*d^3*0.9 |
Size class | 4 | 1 | 2 | 3 | 5 |
---|---|---|---|---|---|
Unit | cell | cell | cell | cell | cell |
Size range | 30 | 22-28 | 28-33 | 34-36 | 36-42 |
Diameter(d1), µm | 30.0 | 25.0 | 30.0 | 35.0 | 39.0 |
No. of cells/counting unit | 1 | 1 | 1 | 1 | 1 |
Calculated volume, µm3 | 12 717 | 7 359 | 12 717 | 20 194 | 27 939 |
Calculated Carbon pg/counting unit | 1 543 | 923 | 1 543 | 2 383 | 3 232 |
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
- 2019-01-03 13:48:52 Helena_Hoglander_PEG - Updated media metadata for Oblea rotunda_2.jpg
- 2018-12-07 14:07:53 Helena_Hoglander_PEG - Updated media metadata for Oblea rotunda_2.jpg
- 2018-12-07 14:04:57 Helena_Hoglander_PEG - Added media: Oblea rotunda_2.jpg