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Diatoms of the United States is now known as Diatoms of North America.
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Navicula salinarum

Grunow 1880      Category: Symmetrical biraphid
SYNONYM(S): Schizonema salinarum (Grunow) Kuntze 1898 

Navicula rostellata


Navicula schweigeri

LM scalebar = 10 µm = 80 pixels.


Contributor: Pat Kociolek - March 2011
Length Range: 23-35 µm
Width Range: 8-9 µm
Striae in 10 µm: 13-17


Valves are broadly elliptical-lanceolate with produced, rostrate ends. The axial area is straight and relatively narrow, enlarging to form an elliptical to elliptical-lanceolate central area. The central area is formed by alternating long and short striae in the center of the valve. Striae are lineate, radiate, and arched, becoming parallel near the apices.

While the valve lengths we have seen are similar to those of Patrick and Reimer, we have not seen specimens as wide (they report widths up to 12 µm).

Original Description

Author: Grunow 1880
Length Range: 23-37 µm
Striae in 10 µm: 14-16

Original Description

Schalen breit lanzettlich mit stumpf zugespitzten oder fast kopfförmigen Enden. Querstreifen wie bei N. Bottnica, in der Mitte radial, abwechselnd verkürtz, and den Enden die radiale Richtung verleirend, 14-16 in 0,01 mm., in der Mitte etwas entfernter. Lange 0,023-0,037 mm., Schaalenbreite 0,01-0,012 mm.

Original Images

Cite This Page:
Kociolek, P. (2011). Navicula salinarum. In Diatoms of the United States. Retrieved May 23, 2018, from

Species: Navicula salinarum

Contributor: Pat Kociolek

Reviewer: Mark Edlund


Krammer, K. and Lange-Bertalot, H. (1986). Bacillariophyceae. 1. Teil: Naviculaceae. In: Ettl, H., J. Gerloff, H. Heynig and D. Mollenhauer (eds.) Süsswasserflora von Mitteleuropa, Band 2/1. Gustav Fisher Verlag, Jena. 876 pp.

Patrick, R.M. and Reimer, C.W. (1966). The Diatoms of the United States exclusive of Alaska and Hawaii, V. 1. Monographs of the Academy of Natural Sciences of Philadelphia 13.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Navicula salinarum CAS

NCBI Genbank Taxonomy

Navicula salinarum NCBI

North American Diatom Ecological Database (NADED)

NADED ID: 46389

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

Navicula salinarum

EMAP Response Plots

Navicula salinarum

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.