Denticula subtilis

Grunow 1862      Category: Nitzschioid

Denticula creticola

 

Denticula tenuis

LM scalebar = 10 µm = 80 pixels.



Observations

Contributor: Nina Desianti - April 2016
Length Range: 7-21 µm
Width Range: 2-3 µm
Striae in 10 µm: 26-40

Description

Valves are small, linear-lanceolate with acute ends. The keel is marginal along the edge of valve face. Striae are sometimes visible under LM. Costae are typically parallel to one another, measuring in 8-9 in 10 µm.



Original Description

Basionym:
Author: Grunow 1862
Length Range: 12.7-25.4 µm
Striae in 10 µm: > 15.7

Original Description

D. subtilis nov. spec. Klein (0.0005-0.0010” lang), Schalen schmas linear lanzettlich mit spitzen Enden, Rippen zart 18-22 in 0.001”, Querstreifen über 40 in 0.001”. Im brackischen Wasser.

Original Images


Cite This Page:
Desianti, N. (2016). Denticula subtilis. In Diatoms of the United States. Retrieved March 25, 2017, from http://westerndiatoms.colorado.edu/taxa/species/denticula_subtilis

Species: Denticula subtilis

Contributor: Nina Desianti

Reviewer: Sarah Spaulding

Citations

Grunow, A. (1862). Die österreichischen Diatomaceen nebst Anschluss einiger neuen Arten von andern Lokalitäten und einer kritischen Uebersicht der bisher bekannten Gattungen und Arten. Erste Folge. Epithemieae, Meridioneae, Diatomeae, Entopyleae, Surirelleae, Amphipleureae. Zweite Folge. Familie Nitzschieae. Verhandlungen der Kaiserlich-Königlichen Zoologisch-Botanischen Gesellschaft in Wien 12: 368, Pl. 7, fig. 8.

Krammer, K. and Lange-Bertalot, H. (1988). Bacillariophyceae. 2. Teil: Bacillariaceae, Epithemiaceae, Surirellaceae. In: Ettl, H., J. Gerloff, H. Heynig and D. Mollenhauer (eds.) Susswasserflora von Mitteleuropa, Band 2/2. Gustav Fisher Verlag, Jena.

Lange-Bertalot, H. and Krammer, K. (1987). Bacillariaceae Epithemiaceae Surirellaceae. Neue und wenig bekannte Taxa, neae Kombinationen und Synonyme sowie Bemerkungen und Erganzungen zu den Naviculaceae. Bibliotheca Diatomologica 15:289 pp.

Lange-Bertalot, H. and Krammer, K. (1993). Observations on Simonsenia and some small species of Denticula and Nitzschia. Nova Hedwigia, Beiheft 106: 121-131.

Links & ID's

Index Nominum Algarum (INA)

Original INA

California Academy of Sciences (CAS)

Denticula subtilis CAS

North American Diatom Ecological Database (NADED)

NADED ID: 25004

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

Denticula subtilis


EMAP Response Plots

Denticula subtilis


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.