Opephora naveana

Taxon ID: 214
Author: Le Cohu 1988   
Basionym:
Synonym: Fragilaria opephoroides

 

Images

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LM image scalebar = 10 µm = pixels not measured     

 

Observations

Observations: Bart Van de Vijver
Length: 5,9-9,4µm
Width: 2-3,1µm
Striae: 16-20 striae in 10µm

Description:

Valves variable in shape: from elliptical to lanceolate and even cuneate with sharply rounded ends (L 5,9-9,4µm, W 2-3,1µm, 16-20 striae in 10µm). Striae alternate, parallel in the middle, slightly radiate near the ends. Axial area linear to lanceolate. In SEM view, the two apical porefields are quite distinct at each valve end. The valve face is separated from the mantle by a small bar with simple linking spines. Striae are sunk below the virga level, interrupted by spines. Striae are composed of two rows of areolae, covered by an external membrane.

Morphology: Araphid
Distribution:

Autecology:

 

Notes:

Only found in two small pools and one larger lake in the Vallée des Géants with mean pH of 6,3 and a very high specific conductance (>2000µS/cm). Also observed attached to mosses growing in those waterbodies. No observations made in soil samples.Kerguelen (Le Cohu 1988).Often confused in counts with Staurosira pinnata. More morphological details are given in Sabbe & Vyverman (1995).

 

 

Other sites with Opephora naveana

  • Ile de la Possession (moist habitats), Crozet Archipelago

Original Type Description

Author: Le Cohu 1988
Length:
Width:
Striae:

Original Description:

 

New combination

Author:

 

Citations

Index Nominum Algarum (INA):

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  • The INA is a bibliographic reference "card file" for algal taxonomy, containing nearly 200,000 names of algae (in the broad sense).

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