• Category
  • Length Range
    15.0-50.0 µm
  • Width Range
    1.5-4.0 µm

Identification

Description

The valves are narrowly linear-lanceolate and taper gradually to very narrow, rounded ends. The fibulae are evident but short, with a density of 14-18 in 10 µm. A distinct central nodule is present. The striae are not visible in the light microscope.

Autecology

Original Description

  • Author
    Grunow in Van Heurck 1881

Original Images

Paleaceapic

EMAP Assessment

EMAP Distribution

Nitzschia Paleacea  Grunow Ex  Van  Heurck 3
Map 3

Response Plots

Nitzschia Paleacea  Grunow Ex  Van  Heurck

Cite This Page

Kociolek, P. (2011). Nitzschia paleacea. In Diatoms of North America. Retrieved July 22, 2018, from https://diatoms.org/species/nitzschia_paleacea

Responses

The 15 response plots show an environmental variable (x axis) against the relative abundance (y axis) of Nitzschia paleacea 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.