[ meld een fout in dit record ]mandje (0): toevoegen | toon Print deze pagina
An evaluation of selected Neidium species from the Antarctic region
Hamilton, P.B.; de Haan, M.; Kopalova, K.; Zidarova, R.; Van de Vijver, B. (2014). An evaluation of selected Neidium species from the Antarctic region. Diatom Research 29(1): 27-40. http://dx.doi.org/10.1080/0269249X.2013.822020
In: Diatom Research. Taylor & Francis: Bristol Avon. ISSN 0269-249X; e-ISSN 2159-8347, meer
Peer reviewed article  
Beschikbaar in  Auteurs 
Trefwoorden
    A, Atlantic
    Geography > Biogeography
    Morphology
    Taxa > Species > New taxa > New species
    Bacillariophyceae [WoRMS]; Neidium E. Pfitzer, 1871 [WoRMS]
    Atlantic Ocean [Marine Regions]
    Marien/Kust; Zoet water
Author keywords
    Antarctic region; Neidium
Auteurs  Top 
  • Hamilton, P.B.
  • de Haan, M., meer
  • Kopalova, K.
  • Zidarova, R.
  • Van de Vijver, B., meer
Abstract
    The presentation of three distinct Neidium taxa from the sub-Antarctic and Maritime Antarctic region after examining more than 1500 samples from a broad variety of aquatic and terrestrial (micro-)habitats suggests that taxa representing the genus Neidium Pfitzer are not only quite rare in these regions, but that the three species also represent well-defined biogeographical distributions. N. nyvltii sp. nov., N. antarcticum sp. nov. and N. aubertii Manguin are characterized by linear to linear–lanceolate valves with rostrate to capitate apices, a single prominent longitudinal canal along the valve margins and lacinia covering the distal raphe endings. Neidium nyvltii is a benthic alkalophile growing in the Maritime Antarctic region under high total phosphorus (TP) and moderately high chloride concentrations, while the closest taxa for comparison (N. kozlowii Mereschkowsky and its varieties) are also alkalophilic, growing under lower TP concentrations in northern temperate–Arctic regions. Neidium aubertii is an acidophile with a sub-Antarctic distribution, whereas the most comparable taxa are N. bisulcatum (Lagestedt) Cleve, and N. bergii (A. Cleve-Euler) Krammer & Lange-Bertalot both are alkalophiles with northern hemisphere distribution and commonly occurring in the Arctic. There is some evidence of parallel similarities in valve forms between the polar northern and southern hemispheres. The significance of this parallelism is yet to be determined.
Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid Top | Auteurs 
IMIS is ontwikkeld en wordt gehost door het VLIZ.