Revision of the genus Navicula s.s. (Bacillariophyceae) in inland waters of the Sub-Antarctic and Antarctic with the description of five new species

A revision of the diatom genus Navicula s.s. in inland water samples from the Sub-Antarctic and Antarctic resulted in the description of five new species, viz. Navicula australoshetlandica Van de Vijver sp. nov., N. dobrinatemniskovae Zidarova & Van de Vijver sp. nov., N. cremeri Van de Vijver &...

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Bibliographic Details
Published in:Phycologia
Main Authors: Van de Vijver, Bart, Zidarova, Ralitsa, Sterken, Mieke, Verleyen, Elie, de Haan, Myriam, Vyverman, Wim, Hinz, Friedel, Sabbe, Koen
Format: Article in Journal/Newspaper
Language:English
Published: 2011
Subjects:
Biology and Life Sciences
Bacillariophyta
Sub-Antarctic and Antarctic Region
Diatoms
Morphology
Navicula
Taxonomy
SOUTH SHETLAND ISLANDS
KING-GEORGE-ISLAND
SEDIMENT DIATOM ASSEMBLAGES
STROMNESS BAY AREA
JAMES-ROSS-ISLAND
FRESH-WATER
COMPLEX BACILLARIOPHYCEAE
MUELLERIA BACILLARIOPHYTA
DECEPTION ISLAND
SALINE LAKES
Antarctic
Deception Island
Indian
King George Island
Ross Island
South Shetland Islands
Stromness
Stromness Bay
The Antarctic
Antarc*
James Ross Island
Online Access:https://biblio.ugent.be/publication/2140671
http://hdl.handle.net/1854/LU-2140671
https://doi.org/10.2216/10-49.1
https://biblio.ugent.be/publication/2140671/file/2154017
Description
Summary:A revision of the diatom genus Navicula s.s. in inland water samples from the Sub-Antarctic and Antarctic resulted in the description of five new species, viz. Navicula australoshetlandica Van de Vijver sp. nov., N. dobrinatemniskovae Zidarova & Van de Vijver sp. nov., N. cremeri Van de Vijver & Zidarova sp. nov. N. conveyi Van de Vijver sp. nov. and Navicula bicephaloides Van de Vijver & Zidarova sp. nov. The new species are extensively compared with other similar species. The morphology and taxonomy of three other Navicula taxa present in the same materials are briefly discussed. A critical revision of literature reports of Navicula taxa in the Antarctic and Sub-Antarctic region indicates that despite the large number of records the genus is rather species-poor in the Sub-Antarctic and Antarctic. From a biogeographical point of view, there is a clear separation between the Sub-Antarctic localities in the southern Indian Ocean and the islands in the southern Atlantic Ocean, with several species showing a restricted biogeography.

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