Nitzschia valdecostata

Lange-Bertalot and Simonsen 1978      Category: Nitzschioid
BASIONYM: Nitzschia valdecostata Lange-Bertalot and Simonsen 1978

Nitzschia sociabilis

 

Nupela carolina

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Pat Kociolek - September 2011
Length Range: 10-25 µm
Width Range: 3.0-5.0 µm
Striae in 10 µm: 17-19

Description

The valves are linear-elliptical, with the smallest valves elliptical in outline. The apices are rounded. The raphe has stout, distinct fibulae with a density of 7-9 in 10 µm. The middle two fibulae are closer together than the others. The striae are distinct, with the areolae being either not resolved, or indistinct.



Original Description

Basionym: Nitzschia valdecostata
Author: Lange-Bertalot and Simonsen 1978
Length Range: 14.0-25.0 µm
Width Range: 3.5-4.0 µm
Striae in 10 µm: 17-19

Original Description

Original Images


Cite This Page:
Kociolek, P. (2011). Nitzschia valdecostata. In Diatoms of the United States. Retrieved December 03, 2016, from http://westerndiatoms.colorado.edu/taxa/species/nitzschia_valdecostata

Species: Nitzschia valdecostata

Contributor: Pat Kociolek

Reviewer: Sarah Spaulding

Citations

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.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Nitzschia valdecostata CAS

North American Diatom Ecological Database (NADED)

NADED ID: 48237

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 valdecostata


EMAP Response Plots

Nitzschia valdecostata


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.