Sellaphora subfasciata
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Category
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Length Range14-18 µm
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Width Range3.6-4.5 µm
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Striae in 10 µm26-28 in the center valve, 30-32 at the ends
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SynonymsNavicula subfasciata R.M.Patrick (Replaced synonym)
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ContributorMarina Potapova - Feb 2013
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ReviewerSarah Spaulding - Aug 2013
Identification
Description
Valves are lanceolate with capitate apices. The axial area is linear and narrow. The central area is elliptic, or rectangular. Striae are strongly radiate and bent. Areolae are circular and number approximately 56-64 in 10 µm. The raphe is filiform, with slightly expanded proximal ends. Internally, silica bars are present at the valve apices.
Autecology
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Size Range, µm3
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Motility
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Attachment
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Habitat
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Colony
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Waterbody
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Distribution
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Original Description
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BasionymNavicula subfasciata
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AuthorR.M.Patrick 1959
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Length Range15-18 µm
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Width3-5 µm
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Striae in 10µm24-26
Original Images
Citations & Links
Citations
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Publication Link: http://www.jstor.org/stable/4064508
Links
Cite This Page
Potapova, M. (2013). Sellaphora subfasciata. In Diatoms of North America. Retrieved December 21, 2024, from https://diatoms.org/species/49231/sellaphora_subfasciata
Responses
The 15 response plots show an environmental variable (x axis) against the relative abundance (y axis) of Sellaphora subfasciata 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.
Sellaphora subfasciata
- Valves lanceolate, with capitate apices
- Central area elliptic or rectangular
- Striae are strongly radiate and bent
- Polar bars present
Valves are lanceolate with capitate apices. The central area is elliptic or rectangular. Striae are strongly radiate and bent. The raphe is filiform, with slightly expanded proximal ends. Polar bars are present.