Epithemia reichelti

Fricke in Schmidt et al. 1904      Category: Epithemioid
BASIONYM: Epithemia reicheltii Fricke in Schmidt et al. 1904

Epithemia adnata

 

Epithemia sorex

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Rex Lowe - December 2011
Length Range: 13-41 µm
Width Range: 5.2-9 µm
Striae in 10 µm: 14-15

Description

Valves are dorsiventral. The dorsal margin is strongly convex and the ventral margin is nearly flat to weakly concave, resulting in the valve being triangular in shape. The valve tapers from the center to rounded, undifferentiated ends. The raphe canal lies close to the dorsal margin and is straight, rather than arched. Costae are 3-4 in 10 μm, with 3-6 striae between costae.



Original Description

Basionym: Epithemia reicheltii
Author: Fricke in Schmidt et al. 1904
Length Range: µm
Striae in 10 µm:

Original Description

Original Images


Cite This Page:
Lowe, R. (2011). Epithemia reichelti . In Diatoms of the United States. Retrieved April 25, 2014, from http://westerndiatoms.colorado.edu/taxa/species/epithemia_reicheltii

Species: Epithemia reichelti

Contributor: Rex Lowe

Reviewer: Sarah Spaulding

Citations

Schmidt, A. (-). (1874-1959). Atlas der Diatomaceen-Kunde, von Adolf Schmidt, continued by Martin Schmidt, Friedrich Fricke, Heinrich Heiden, Otto Muller, Friedrich Hustedt. Reprint 1984, Koeltz Scientific Books, Konigstein, 480 plates.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Epithemia reicheltii CAS

North American Diatom Ecological Database (NADED)

NADED ID: 32010

Autecology Discussion

This taxon is more common in calcium-rich, nitrogen-poor habitats and possesses endosymbiotic nitrogen-fixing cyanobactetria.

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

Epithemia reicheltii


EMAP Response Plots

Epithemia reicheltii


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.