Navicula veneta

Kützing 1844      Category: Symmetrical biraphid
BASIONYM: Navicula veneta Kützing 1844
SYNONYM(S): Navicula cryptocephala var. veneta (Kützing) Rabenhorst 

Navicula venerablis

 

Navicula vilaplanii

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Marina Potapova - March 2011
Length Range: 17-26 µm
Width Range: 4.4-5.3 µm
Striae in 10 µm: 14-15 in the center valve

Description

Valves are lanceolate to linear-lanceolate with moderately protracted apices. The axial area is narrow and straight. The central area is transversely rectangular or ellipticl. The raphe is straight, with drop-like external proximal ends. Striae are slightly radiate around the center, becoming convergent at the apices. The areolae are sometimes visible under LM, approximately 35 in 10 μm.



Original Description

Basionym: Navicula veneta
Author: Kützing 1844
Length Range: 19.6 µm
Striae in 10 µm:

Original Description

N. minutula, lanceolata, latiuscula, laevissima, apicibus productis obtusiusculus. Long. 1/115’’’.

Original Images


Cite This Page:
Potapova, M. (2011). Navicula veneta . In Diatoms of the United States. Retrieved July 29, 2014, from http://westerndiatoms.colorado.edu/taxa/species/navicula_veneta

Species: Navicula veneta

Contributor: Marina Potapova

Reviewer: Sam Rushforth

Citations

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

Lange-Bertalot, H. (2001). Navicula sensu stricto, 10 genera separated from Navicula sensu lato, Frustulia. Diatoms of Europe 2: 1-526.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Navicula veneta CAS

NCBI Genbank Taxonomy

Navicula cryptocephala var. veneta NCBI

North American Diatom Ecological Database (NADED)

NADED ID: 46504

Autecology Discussion

Pollution-tolerant species

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

Navicula veneta


EMAP Response Plots

Navicula veneta


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.