Discostella stelligera

(Cleve and Grunow) Houk and Klee 2004      Category: Centric
BASIONYM: Cyclotella meneghiniana var. stelligera Cleve and Grunow 1881

Discostella pseudostelligera

 

Distrionella incognita

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Rex Lowe - January 2015
Diameter: 3.7-13.8 µm
Rows of areolae in 10 µm: 14-17

Description

Valves have a distinct central area and a well-defined marginal ring. The center is either concave or convex. The central area has a stellate pattern of alveoli. In some specimens, the central pattern may be absent or composed of ghost alveoli. The marginal ring has striae of equal length.



Original Description

Basionym: Cyclotella meneghiniana var. stelligera
Author: Cleve and Grunow 1881
Diameter: µm
Rows of areolae in 10 µm:

Original Description

Original Images


Cite This Page:
Lowe, R. (2015). Discostella stelligera. In Diatoms of the United States. Retrieved August 20, 2017, from http://westerndiatoms.colorado.edu/taxa/species/discostella_stelligera

Species: Discostella stelligera

Contributor: Rex Lowe

Reviewer: Sam Rushforth

Citations

Houk, V. and Klee, R. (2004). The stelligeroid taxa of the genus Cyclotella (Kutz.) Brébisson (Bacillariophyceae) and their transfer to the new genus Discostella gen. nov. Diatom Research 19: 203-228.

Houk, V., Klee, R. and Tanaka, H. (2010). Atlas of freshwater centric diatoms with a brief key and descriptions, Part III. Stephanodiscaceae A. Cyclotella, Tertiarius, Discostella. Fottea 10 (Supplement): 1-498.

Lowe, R.L. (1975). Comparative ultrastructure of the valves of some Cyclotella species (Bacillariophyceae). Journal of Phycology 11(4): 415-424.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Discostella stelligera CAS

North American Diatom Ecological Database (NADED)

NADED ID: 2506003

Autecology Discussion

Planktonic, primarily in lakes and large rivers. May respond to increased nutrients.

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

Discostella stelligera


EMAP Response Plots

Discostella stelligera


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.