• Category
  • Length Range
    9.0-11.2 µm
  • Width Range
    2.5-2.8 µm
  • Striae in 10 µm
    > 40



Valves are small and linear, with rounded ends. The keel is positioned at the valve margin. Striae are too dense to be visible in LM. Costae are mostly parallel, but become curved at the apices, measuring 12 in 10 µm.


Original Description

  • Basionym
    Nitzschia creticola
  • Author
    Østrup 1910
  • Length Range
    11 µm
  • Width
    2.7 µm
  • Striae in 10µm

Original Images

Nitzschia creticola orig desc
Den Creticola Orig Desc Text

Cite This Page

Bishop, I., Desianti, N. (2016). Denticula creticola. In Diatoms of North America. Retrieved April 21, 2024, from https://diatoms.org/species/denticula_creticola


The 15 response plots show an environmental variable (x axis) against the relative abundance (y axis) of Denticula creticola from all the stream reaches where it was present. Note that the relative abundance scale is the same on each plot. Explanation of each environmental variable and units are as follows:

ELEVATION = stream reach elevation (meters)
STRAHLER = distribution plot of the Strahler Stream Order
SLOPE = stream reach gradient (degrees)
W1_HALL = an index that is a measure of streamside (riparian) human activity that ranges from 0 - 10, with a value of 0 indicating of minimal disturbance to a value of 10 indicating severe disturbance.
PHSTVL = pH measured in a sealed syringe sample (pH units)
log_COND = log concentration of specific conductivity (µS/cm)
log_PTL = log concentration of total phosphorus (µg/L)
log_NO3 = log concentration of nitrate (µeq/L)
log_DOC = log concentration of dissolved organic carbon (mg/L)
log_SIO2 = log concentration of silicon (mg/L)
log_NA = log concentration of sodium (µeq/L)
log_HCO3 = log concentration of the bicarbonate ion (µeq/L)
EMBED = percent of the stream substrate that is embedded by sand and fine sediment
log_TURBIDITY = log of turbidity, a measure of cloudiness of water, in nephelometric turbidity units (NTU).
DISTOT = an index of total human disturbance in the watershed that ranges from 1 - 100, with a value of 0 indicating of minimal disturbance to a value of 100 indicating severe disturbance.