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国际藻类期刊
SJR: 0.219 SNIP: 0.261 CiteScore™: 0.24

ISSN 打印: 1521-9429
ISSN 在线: 1940-4328

国际藻类期刊

DOI: 10.1615/InterJAlgae.v21.i2.80
pages 191-197

Thalassiosira duostra C. Pienaar (Bacillariophyta) - a New Species for the Flora of Ukraine

S. I. Genkal
I.D. Papanin Institute for Biology of Inland Waters of RAS, Settle Borok, Nekouz District, Yaroslavl Region 152742, Russia

ABSTRACT

The study of archive materials has made it possible to specify the species composition of the genus Thalassiosira Cleve. In the Danube region of the Black Sea, a representative of Centrophyceae (Thalassiosira duostra), which is new for the flora of Ukraine, was discovered. In the analyzed material, the number of central fultoportulae was greater than in the original description, and they are arranged in a circular pattern. However, all quantitative (valve diameter, number of central and marginal fultoportulae) and qualitative (areolae shape and their arrangement on the valve face) characteristics correspond to the published data. According to the general valve outline, the structure and arrangement of central and marginal fultoportulae as well as quantitative characteristics, T. duostra is very similar to Conticribra weissflogii (Grunow) Stachura-Suchoples & Williams, and Thalassiosira faurii (Gasse) Hasle which may have caused inaccuracies in these species' identification.

REFERENCES

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  2. Balonov I.M., in: Methods of studying the biogeocenoses of inland waters, Nauka Press, Moscow, pp. 87-89, 1975. [Rus.].

  3. Genkal S.I., Morphological variability and taxonomy of Thalassiosira faurii (Gasse) Hasle (Bacillariophyta), Novosti Sistematiki Nizshikh Rasteniy, 41: 26-33, 2007.

  4. Genkal S.I., To the morphology, taxonomy and distribution in Russia of Thalassiosira bramaputrae and Th. lacustris (Bacillariophyta), Novosti Sistematiki Nizshikh Rasteniy, 45: 20-26, 2011.

  5. Genkal S.I. and Golokolenova T.B., Centric diatom algae Tsimlyansk reservoir, PovolzhskiyEkol. J., (3): 178-189, 2011.

  6. Genkal S.I. and Kulikovskiy M.S., To the morphology, ecology and distribution of Thalassiosira weissflogii (Bacillariophyta), Povolzhskiy Ekol. J., 3: 183-189, 2009.

  7. Genkal S.I. and Okhapkin A.G., Centric diatoms (Centrophyceae) of the lower reaches of the Oki River (Russian Federation), Hydrobiol. J, 1: 44-61, 2013.

  8. Genkal S.I. and Terenko L.M., New data on the flora of centric diatoms (Centrophyceae) of the Black Sea, Hydrobiol. J., 2: 38-49, 2014.

  9. Genkal S.I., Shcherbak V.I., and Maystrova N.V., Novosti Sistematiki Nizshikh Rasteniy, 41: 26-33, 2007.

  10. Genkal S.I., Terenko L.M., and Nesterova D.A., New data on the flora of centric diatoms (Centrophyceae) in the Danube region of the Black Sea, Hydrobiol. J, 45: 52-72, 2009.

  11. Kiss K.T., Acs E., and Klee R., in: 19e Colloque de l'Association des Diatomistesde Langue Frangaise (Mont-Rigi, 12-15 Sept., 2000), Abstract, Mont-Rigi, pp. 8-9, 2000.

  12. Kiss K.T., Klee R., Ector L., and Acs E., Centric diatoms of large rivers and tributaries in Hungary: morphology and biogeographic distribution, Acta Bot. Croat., 71(2): 311-363, 2012.

  13. Kiss K.T., Acs E., Houk E.V., Marvan P., and Ector L., in: 12th Hungarian algological meeting (Pecs, 15-18 May, 2001), Abstract, Pecs, Hungary, p. 28, 2001.

  14. Pienaar C. and Pieterse A.J.H., Thalassiosira duostra sp. nov. a new freshwater centric diatom from the Vaal River, South Africa, Diatom Res., 5(1): 105-111, 1990.

  15. Roubeix V., Chalie F., and Gasse F., The diatom Thalassiosira faurii (Gasse) Hasle in the Ziway-Shala lakes (Ethiopia) and implications for paleoclimatic reconstructions: Case study of the Glacial-Holocene transition in East Africa, Palaeogeography, Palaeclimatology, Palaeoecology, 402: 104-112, 2014. https://doi.org/10.1016Zj.palaeo. 2014.03.014.

  16. Stachura-Sushoples K. and Williams D.M., Description of Conticribra tricircularis, a new genus and species of Thalassiosirales, with a discussion on its relationship to other continuous cribra species of Thalassiosira Cleve (Bacillariophyta) and its freshwater origin, Eur. J. Phycol., 44(4): 477-486, 2009.

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