Surirella suecica

Grunow in Van Heurck 1881      Category: Surirelloid
BASIONYM: Surirella suecica Grunow in Van Heurck 1881

Surirella striatula

 

Surirella tenera

LM scalebar = 10 µm = 40 pixels.



Observations

Contributor: Jonathan English - February 2011
Length Range: 14-34 µm
Width Range: 7-9.5 µm
Striae in 10 µm: 30-36

Description

Valves 14-34 µm long by 7-9.5 µm wide, with a length-width ratio between 2 and 3.6. Valves generally clavate, although some have linear or constricted midsections that abruptly become pointed near the footpole. The headpole is broadly rounded while the footpole is acutely wedge-shaped and frequently capitate. Costae extend from the valve margins to the apical axis, 30-36 in 10 µm and rarely visible in the LM. Between the costae 2-3 rows of areolae exist, which are only visible in the SEM. Indentations in the valve face are present around the circumference of the valve, having the appearance of large areolae in the LM. Fibulae are short and marginal, 9-12 in 10µm.



Original Description

Basionym: Surirella suecica
Author: Grunow in Van Heurck 1881
Length Range: µm
Striae in 10 µm:

Original Description

Original Images


Cite This Page:
English, J. (2011). Surirella suecica. In Diatoms of the United States. Retrieved December 10, 2016, from http://westerndiatoms.colorado.edu/taxa/species/surirella_suecica

Species: Surirella suecica

Contributor: Jonathan English

Reviewer: Sam Rushforth

Citations

Coste, M. and Ricard, M. (1982). Contribution a l’étude des diatomées deau douce des Seychelles et de l’Ile Maurice. Cryptogamie, Algologie 3(4): 279-313.

Van Heurck, H. (1881). Synopsis des Diatomées de Belgique. Atlas. Ducaju & Cie., Anvers. pls 31-77.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Surirella suecica CAS

North American Diatom Ecological Database (NADED)

NADED ID: 65055

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

Surirella suecica


EMAP Response Plots

Surirella suecica


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.