Rhizosolenia hyalina Ostenfeld

Division: Chromophyta
Class: Bacillariophyceae
Order: Biddulphiales
Suborder: Rhizosoleniineae
Family: Rhizosoleniaceae De Toni
Genus: Rhizosolenia (Ehrenberg) Brightwell
Scientific name: Rhizosolenia hyalina Ostenfeld

Species: hyalina

 

Synonym:
Rhizosolenia pellucida Cleve

Reference:
Hasle and Syvertsen, 1997.

Description:
Process slightly bent near the end of the otaria. Otaria narrow, extending along process for ca 4-6 µm. Diameter 9-60 µm,length of process up to 40 µm, band areolae 31-36 in 10 µm (Hasle and Syvertsen, 1997).

Dimensions:
Cells length 180-220 µm; diameter 40-45 µm.

Distribution:
Warm-water species.

Sites of occurrence in RSA:
In Winter 2006 Cruise, this species was frequently observed at various sites (refer sites map), although never in large numbers; maximum abundance (4.4*10^2 cells/l) was associated with the northwestern part of the inner RSA (St. 11).