THALASSIOSIRA DUOSTRA SP. NOV. A NEW FRESHWATER CENTRIC DIATOM FROM THE VAAL RIVER, SOUTH AFRICA

REFERENCES

• 1975 . Proposals for a standardization of diatom terminology and diagnoses . Nova Hedwigia, Beiheft , 53 : 323 – 354 . ANONYMOUS.
   Google Scholar
• BRAUNE , E. Foreword . The Vaal River Ecosystem: Status and Problems. Proceedings of a Joint Symposium convened by the Foundation for Research Development and the Vaal River Catchment Association . Pretoria : CSIR . Occasional Report no. 5
   Google Scholar
• BRUWER , C. A. , VAN VLIET , H. R. , SARTORY , D. P. and KEMPSTER , P. L. 1985 . An assessment of water related problems of the Vaal River between Barrage and Douglas Weir. , Pretoria : Department of Water Affairs . Technical Report TR121, HRI
   Google Scholar
• CASSIE , V. and DEMPSEY , P. 1980 . A new freshwater species of Thalassiosira from some small oxidation ponds in New Zealand, and its ultrastructure . Bacillaria , 3 : 273 – 292 .
   Google Scholar
• CRAWFORD , R. M. 1975 . The taxonomy and classification of the diatom genus Melosira C. Ag. I. The type species M. nummuloides C. Ag . British phycological Journal , 10 : 323 – 338 .
   Google Scholar
• FRYXELL , G. A. 1978 . Proposals for the conservation of the diatom Coscinodiscus argus Ehrenberg as the type genus . Taxon , 27 : 122 – 125 .
   Google Scholar
• FRYXELL , G. A. and HASLE , G. R. 1979 . The genus Thalassiosira: T. trifulta sp. nova and other species with tricolumnar supports on strutted processes . Nova Hedwigia, Beiheft , 64 : 13 – 32 .
   Google Scholar
• FRYXELL , G. A. and HASLE , G. R. 1983 . The Antarctic diatoms Thalassiosira dichotomica (Kozlovsa) comb. nov. and T. ambigua Kozlova . Polar Biology , 2 : 53 – 62 .
   Web of Science ®Google Scholar
• FRYXELL , G. A. , GOULD , J. R. , BALMORI , E. R. and THERIOT , E. C. 1985 . Gulf stream warm core rings: phytoplankton in two fall rings of different ages . Journal of Plankton Research , 7 : 339 – 364 .
   Web of Science ®Google Scholar
• HASLE , G. R. 1978a . “ Some specific preparations: diatoms ” . In Phytoplankton Manual , Edited by: SOURNIA , A. 136 – 142 . Paris : UNESCO .
   Google Scholar
• HASLE , G. R. 1978b . Some freshwater and brackish water species of the diatom genus Thalassiosira Cleve . Phycologia , 17 : 263 – 292 .
   Web of Science ®Google Scholar
• HASLE , G. R. 1983 . The marine planktonie diatoms Thalassiosira oceanica, sp. nov. and T. partheneia . Journal of Phycology , 19 : 220 – 229 .
   Web of Science ®Google Scholar
• HERZIG , W. N. and FRYXELL , G. A. 1986 . The diatom genus Thalassiosira Cleve in Gulf Stream warm core rings: Taxonomy, with T. intrannula and T. lineoides, sp. nov . Botanica Marina , 24 : 11 – 25 .
   Google Scholar
• JOHANSEN , J. R. and FRYXELL , G. A. 1985 . The genus Thalassiosira (Bacillariophyceae): studies on species occurring south of the Antarctic Convergence Zone . Phycologia , 24 : 155 – 179 .
   Web of Science ®Google Scholar
• KISS , K. T. 1984 . Occurrence of Thalassiosira pseudonana Hasle et-Heimdal (Bacillariophyceae) in some rivers of Hungary . Acta Botanica Hungarica , 30 : 277 – 287 .
   Web of Science ®Google Scholar
• KISS , K. T. , KOVACS , K. and DOBLER , E. 1984 . The fine structure of some small Thalassiosira species (Bacillariophyceae) in the Danube and the Tisza rivers . Archiv für Hydrobiologie, Supplement , 67 : 409 – 415 .
   Google Scholar
• MAHOOD , A. D. , FRYXELL , G. A. and MCMILLAN , M. 1986 . The diatom genus Thalassiosira: species from the San Francisco Bay system . Proceedings of the Califomian Academy of Sciences , 44 : 127 – 156 .
   Google Scholar
• MAKAROVA , I. V. Principles of the systematics of Thalassiosira Cleve and the significance of its taxonomic characters . Proceedings of the 6th Symposium on Recent and Fossil Diatoms . Edited by: ROSS , R. pp. 1 – 9 . Koenigstein : O. Koeltz .
   Google Scholar
• PIETERSE , A. J.H. Aspects of the ecology and significance of algal populations in the Vaal River . The Vaal River Ecosystem: Status and Problems. Proceedings of a Joint Symposium convened by the Foundation for Research Development and the Vaal River Catchment Association . pp. 175 – 199 . CSIR Occasional Report No. 5
   Google Scholar
• PRETORIA PIENAAR , C. 1988 . The centric diatom flora of the Vaal River. , Bloemfontein, , South Africa : University of the Orange Free State . Unpublished M.Sc. Thesis
   Google Scholar
• ROSS , R. , COX , E. J. , KARAYEVA , N. I. , MANN , D. G. , PADDOCK , T. B.B. and SIMS , P. A. 1979 . An amended terminology for the siliceous components of the diatom cell . Nova Hedwigia, Beiheft , 64 : 513 – 533 .
   Google Scholar
• SCHOEMAN , F. R. and ARCHIBALD , R. E.M. 1988 . Taxonomic notes on the diatoms (Bacillariophyceae) of the Gross Barmen thermal springs in South West Africa/Namibia . South African Journal of Botany , 54 : 221 – 256 .
   Google Scholar
• SYVERTSEN , E. E. and HASLE , G. R. 1984 . Thalassiosira bulbosa Syvertsen, sp. nov., an Arctic marine diatom . Polar Biology , 3 : 167 – 172 .
   Web of Science ®Google Scholar