Nitzschia acicularis

(Kützing) W. Smith 1853      Category: Nitzschioid
BASIONYM: Synedra acicularis Kützing 1844

Neidium undulatum

 

Nitzschia alpina

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Pat Kociolek - September 2011
Length Range: 30-100 µm
Width Range: 3.0-4.0 µm
Striae in 10 µm:

Description

The central part of the valve has nearly parallel sides and a sharp tapering. The extended distal portions of the valve are tapered towards fine apices. The fibulae are fine and restricted to the margin, with a density 16-21 in 10 µm. The striae are not visible with light microscopy.



Original Description

Basionym: Synedra acicularis
Author: Kützing 1844
Length Range: µm
Striae in 10 µm:

Original Description

Original Images


Cite This Page:
Kociolek, P. (2011). Nitzschia acicularis. In Diatoms of the United States. Retrieved September 29, 2016, from http://westerndiatoms.colorado.edu/taxa/species/nitzschia_acicularis

Species: Nitzschia acicularis

Contributor: Pat Kociolek

Reviewer: Sarah Spaulding

Citations

Kützing, F.T. (1844). Die kieselschaligen Bacillarien oder Diatomeen. Nordhausen. 152 pp., 30 pls.

Smith, W. (1853). Synopsis of British Diatomaceae. John Van Voorst, London 1853. 89 pp., pls 1-31.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nitzschia acicularis CAS

NCBI Genbank Taxonomy

Nitzschia acicularis NCBI

North American Diatom Ecological Database (NADED)

NADED ID: 48002

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 acicularis


EMAP Response Plots

Nitzschia acicularis


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.