New data to morphology, ecology and distribution of rare species Chamaepinnularia circumborealis and Neidiopsis wulffii (Bacillariophyta)

Author:

Genkal S. I.1,Yarushina M. I.2

Affiliation:

1. Papanin Institute for Biology of Inland Waters of the Russian Academy of Sciences

2. Institute of Plant and Animal Ecology, Ural Branch of the Russian Academy of Sciences

Abstract

Two rare species of diatom algae, Chamaepinnularia circumborealis and Neidiopsis wulffii, are recorded in water courses and waterbodies in the Yamal Peninsula (Western Siberia, 69°16′2.8″–70°33′53.6″ N, 68°04′10.3″–68°9′57.46″ E). New data on their ecology and distribution are provided. A SEM study of these species has shown their broader variability in diagnostic characters (valve length and width, number of striae in 10 μm, shape of valve, raphe and central area, structure of striae) in comparison with published data. Descriptions of Chamaepinnularia circumborealis and Neidiopsis wulffii are refined. Their differentiation from morphologically similar species is discussed.

Publisher

Komarov Botanical Institute of the Russian Academy of Sciences

Subject

Plant Science,Ecology, Evolution, Behavior and Systematics

Reference12 articles.

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3. Balonov I. M. 1975. Preparation of algae for electron microscopy. Metodika izucheniya biogeotsenozov [Methods for the study of biocenoses]. Moscow: 87–89. (In Russ.).

4. Genkal S. I., Kulikovskiy M. S., Stenina A. S. 2007. Variability of main structural elements of a valve of some species of the genus Navicula (Bacillariophyta). Biol. vnutrenn. vod. 2: 20–25. (In Russ.).

5. Genkal S. I., Vekhov N. V. 2007. Diatomovye vodorosli vodoemov Russkoy Arktiki: arkhipelag Novaya Zemlya i ostrov Vaygach [Diatom algae of water bodies in the Russian Arctic: Novaya Zemlya Archipelago and Vaigach Island]. Moscow: 64 p. (In Russ.).

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