LM scalebar = 10 µm = 40 pixels.
Observations
Contributor: Marina Potapova - May 2009
Length Range: 15-60 µm
Width Range: 8–12 µm
Striae in 10 µm: 50-60
Description
Cells form zig-zag colonies. Frustules are rectangular in girdle view. Valves are elliptical to elliptical-lanceolate with broadly rounded subrostrate ends, 8-12 µm wide, 15-60 µm long. Transapical ribs 6-10 in 10 µm. Striae uniseriate, 45-50 in 10 µm, consisting of small poroid areolae. The axial area is linear, very narrow. One rimoportula is present at one valve apex. Apical pore fields are present at both apices.
Original Description
Basionym: Diatoma vulgaris
Author: Bory 1824
Length Range: µm
Striae in 10 µm:
Original Description
Cette petite espèce a ses segmens de forme quadrilatère, solitaires ou se tenant de deux à quatre enserable après leur disjonction, brunâtres vers le centre où plusieurs sont marqués de deux points ronds parfaitement transparens. Ces filamens, quand ils sont disposés en zin-zag, atteignent une ligne de longueur, mais l'oeil désarmé n'y saurait distinguier aucune organisation. Ils recouvrent fréquemment l'extremité des rameaux du Conferva glomerata, L., surtout aux endroits où le courant de l'eau est fort rapide, comme dans les écluses de moulins. Nous en avons trouvé en abondance sur des Conferves du Rhône, Il est jusque dans le bassin du Palais-Royal.
Original Images
Cite This Page:
Potapova, M. (2009). Diatoma vulgaris. In Diatoms of the United States. Retrieved May 26, 2013, from http://westerndiatoms.colorado.edu/taxa/species/Diatoma_vulgaris
Species: Diatoma vulgaris
Contributor: Marina Potapova
Reviewer: Sam Rushforth
Image Credit: Marina Potapova, Sarah Spaulding
- Valve elliptical to elliptical-lanceolate with rounded subrostrate ends
- Valve 8-12 µm wide
- Transapical costae 6-10 in 10 µm
Valves elliptical to elliptical-lanceolate with broadly rounded subrostrate apices. Transapical costae visible under LM, striae not visible under LM.
Compare
Diatoma vulgaris is similar in valve outline to short cells of D. moniliformis. Valves of D. vulgaris are wider.
Diatoma moniliformis
Citations
Bory de Saint-Vincent, J.B.M. (1824). Dictionnaire Classique d'Histoire Naturelle. Tome cinquième. Dictionnaire Classique d'Histoire Naturelle. Tome cinquième. Cra-D [vol. 5]. Paris. Rey & Gravier, libraires-éditeurs; Baudouin Frères, libraires-éditeurs.
Bory de Saint-Vincent, J.B.M. (1831). Dictionnaire Classique d'Histoire Naturelle. Tome dix-septième et dernier. Atlas et illustration des planches [vol. 17]. Dictionnaire Classique d'Histoire Naturelle. Tome dix-septième et dernier. Atlas et illustration des planches [vol. 17]. Paris. Rey & Gravier, libraires-éditeurs.
Williams, D.M. (1985). Morphology, taxonomy and inter-relationships of the ribbed araphid diatoms from the genera Diatoma and Meridion (Diatomaceae: Bacillariophyta). Bibliotheca Diatomologica 8: 1-228.
Links & ID's
Index Nominum Algarum (INA)
California Academy of Sciences (CAS)
North American Diatom Ecological Database (NADED)
NADED ID: 27013
Autecology Discussion
Fresh and brackish water. Forms zig-zag colonies attached to the substrate by a mucilage pad.
EMAP Assessment
Sampling for the Environmental Protection Agency (EPA) western Environmental Monitoring and Assessment Program (EMAP) study was completed during the years 2000-2004 (see citations at bottom of this page). Streams and rivers in 12 western states (Arizona, California, Colorado, Idaho, Montana, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington and Wyoming). Over 1200 sites on streams and rivers in 12 western states (Arizona, California, Colorado, Idaho, Montana, Nevada, North Dakota, Oregon, South Dakota, Utah, Washington and Wyoming) were selected for sampling based on a stratified randomized design. This type of design insures that ecological resources are sampled in proportion to their actual geographical presence. Stratified randomized design also allows for estimates of stream length with a known confidence in several “condition classes” (good or least-disturbed, intermediately-disturbed, and poor or most-disturbed) for biotic condition, chemistry and habitat.
EMAP Distribution
Diatoma vulgaris
Distribution
The distribution map represents the relative abundance of this Diatoma vulgaris in the western EMAP study. Relative abundance is a measure of the proportion of cells of this species based on a "fixed count" of 300 total diatom cells counted and identified. Each of the western EMAP sample sites is shown, either with a black dot for sites where Diatoma vulgaris was not recorded, or with a red circle indicating the relative abundance of Diatoma vulgaris.
Note that the size of the proportional symbols varies between species to help show both abundant and rare species.
Scale for the map to the left
EMAP Response Plots
Diatoma vulgaris
EMAP citations
Results are published in:
Johnson, T., Hermann, K., Spaulding, S., Beyea, B., Theel, C., Sada, R., Bollman, W., Bowman, J., Larsen, A., Vining, K., Ostermiller, J., Petersen, D. Hargett, E. and Zumberge, J. (2009). An ecological assessment of USEPA Region 8 streams and rivers. U.S. Environmental Protection Agency Region 8 Report, 178 p.
Stoddard, J. L., Peck, D. V., Olsen, A. R., Larsen, D. P., Van Sickle, J., Hawkins, C. P., Hughes, R. M., Whittier, T. R., Lomnicky, G. A., Herlihy, A. T., Kaufman, P. R., Peterson, S. A., Ringold, P. L., Paulsen, S. G., and Blair, R. (2005). Environmental Monitoring and Assessment Program (EMAP) western streams and rivers statistical summary. U.S. Environmental Protection Agency Report 620/R-05/006, 1,762 p.
Stoddard, J. L., Peck, D. V., Paulsen, S. G., Van Sickle, J., Hawkins, C. P., Herlihy, A. T., Hughes, R. M., Kaufman, P. R., Larsen, D. P., Lomnicky, G. A., Olsen, A. R., Peterson, S. A., Ringold, P. L., and Whittier, T. R. (2005). An ecological assessment of western streams and rivers. U.S. Environmental Protection Agency Report 620/R-05/005, 49 p.