Diatoms of North AmericaDiatoms of North America

Nitzschia minuta

Bleisch in Rabenh. 1860

Nitzschia Minuta Guide
  • Category
    Nitzschioid
  • Length Range
    20-36 µm
  • Width Range
    4.0-5.5 µm
  • Striae in 10 µm
    Striae 36-39, fibulae 13-15
  • Synonyms
    Nitzschia communis var. minuta (Bleisch) Mayer 1913

Identification

Nitzschia minuta LM4 Nitzschia minuta LM6 Nitzschia minuta LM3 Nitzschia minuta LM1 Nitzschia minuta LM2 Nitzschia minuta LM5
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Description

Valves with parallel sides, tapering gently to narrowly rounded apices. Fibulae irregular in size and spacing. A central nodule is present. Striae are evident but difficult to count.

Autecology

Original Description

  • Author
    Bleisch in Rabenh. 1860

Cite This Page

Kociolek, P. (2011). Nitzschia minuta. In Diatoms of North America. Retrieved April 26, 2024, from https://diatoms.org/species/nitzschia_minuta

Responses

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