Nitzschia desertorum

Hustedt 1949      Category: Nitzschioid
BASIONYM: Nitzschia desertorum Hustedt 1949

Nitzschia communis


Nitzschia dissipata

LM scalebar = 10 µm = 80 pixels.


Contributor: Pat Kociolek - March 2011
Length Range: 13-22 µm
Width Range: 3-4 µm
Striae in 10 µm: 25-26


Valves are elliptical-lanceolate with short, rostrate, narrowly round apices. Fibulae small, but distinct, 14-16 in 10 µm. Striae are punctate and resolvable with LM.

Krammer and Lange-Bertalot (1988) note that the central two fibulae are equidistant from one another, but this is not evident in the US populations. North American populations are more narrow than indicated by Krammer and Lange-Bertalot.

Original Description

Basionym: Nitzschia desertorum
Author: Hustedt 1949
Length Range: µm
Striae in 10 µm:

Original Description

Original Images

Cite This Page:
Kociolek, P. (2011). Nitzschia desertorum. In Diatoms of the United States. Retrieved October 24, 2016, from

Species: Nitzschia desertorum

Contributor: Pat Kociolek

Reviewer: Rex Lowe


Hustedt, F. (1949). Diatomeen von der Sinai-Halbinsel und aus dem Libanon-Gebiet. Hydrobiologia 2(1): 24-55.

Krammer, K. and Lange-Bertalot, H. (1988). Bacillariophyceae. 2. Teil: Bacillariaceae, Epithemiaceae, Surirellaceae. In: Ettl, H., J. Gerloff, H. Heynig and D. Mollenhauer (eds.) Susswasserflora von Mitteleuropa, Band 2/2. Gustav Fisher Verlag, Jena.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nitzschia desertorum CAS

North American Diatom Ecological Database (NADED)

NADED ID: 48272

Autecology Discussion

EMAP Assessment

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). Over 1200 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

Nitzschia desertorum

EMAP Response Plots

Nitzschia desertorum

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.