Nitzschia alpina

Hustedt 1943      Category: Nitzschioid
BASIONYM: Nitzschia alpina Hustedt 1943

Nitzschia acicularis

 

Nitzschia amphibia

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Loren Bahls - May 2012
Length Range: 13-21 µm
Width Range: 3.3-4.2 µm
Striae in 10 µm: 23-25

Description

Valves are linear to lanceolate, with bluntly rounded to somewhat rostrate apices. Fibulae are distinct and number 11-14 in 10 µm. The fibulae are equidistant and the central nodule absent. Areolae are indistinct.



Original Description

Basionym: Nitzschia alpina
Author: Hustedt 1943
Length Range: µm
Striae in 10 µm:

Original Description

Original Images


Cite This Page:
Bahls, L. (2012). Nitzschia alpina. In Diatoms of the United States. Retrieved December 03, 2016, from http://westerndiatoms.colorado.edu/taxa/species/nitzschia_alpina

Species: Nitzschia alpina

Contributor: Loren Bahls

Reviewer: Rex Lowe

Citations

Hustedt, F. (1943). Die Diatomeenflora einiger Hochgebirgsseen der Landschaft Davos in den schweizer Alpen. Internationale Revue der gesamten Hydrobiologie und Hydrographie 43:124-197, 225-280.

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.

Lange-Bertalot, H. (1980). New species, combinations and synonyms in the genus Nitzschia. Bacillaria 3: 41-78.

Lange-Bertalot, H. and Simonsen, R. (1978). A taxonomic revision of the Nitzschiae lanceolatae Grunow. 2. European and related extra-European fresh water and brackish water taxa. Bacillaria 1:11-111.

Simonsen, R. (1987). Atlas and Catalogue of the Diatom Types of Friedrich Hustedt. J. Cramer, Berlin & Stuttgart 1: 525 pp.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nitzschia alpina CAS

North American Diatom Ecological Database (NADED)

NADED ID: 48040

Autecology Discussion

Nitzschia alpina is widely distributed in lakes and streams in the Northern Rocky Mountains, where mean pH is 7.8 and mean specific conductance is 266 µS/cm. The most common diatom associates of N. alpina in these waters are Fragilaria tenera, Cyclotella comensis, Brachysira microcephala, Encyonopsis cesatii, Nitzschia angustata and Nitzschia bryophila. Lange-Bertalot (1980) reports this species from Iceland and from “unpolluted peatwaters” in Germany and elsewhere.

Images

Bowman Lake, Glacier National Park, Montana: home of Nitzschia alpina.

Credit/Source: Loren Bahls

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 alpina


EMAP Response Plots

Nitzschia alpina


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.