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33 results on '"Mitrofanova, E. Yu."'

13. Communities of aquatic organisms in the system of ecological monitoring of streams at the Vostochny Cosmodrome (Russia)

Author

Bezmaternykh D. M. 1, Kirillov V. V. 1, Vinokurova G. V. 1, Vdovina O. N. 1, Ermolaeva N. I. 1, Zarubina E. Yu. 1, Kotovschikov A. V. 1, Mitrofanova E. Yu. 1, and Puzanov A. V. 1

Subjects
General Medicine
Abstract

The current data on the ecological state of streams at the launch site of the Vostochny Cosmodrome with the use of biological indicators are presented. Recommendations on the surface water biomonitoring of the cosmodrome and the booster rocket drop zones are given. It is shown that the system of biological monitoring of the cosmodrome, as a part of the Roscosmos environmental monitoring, should be coordinated with the Roshydromet monitoring.

Published
2021

25. Chroomonas acuta Uterm. (Cryptophyta) в Телецком озере (Алтай, Россия)

Author

Mitrofanova, E. Yu. and Mitrofanova, E. Yu.

Abstract

В работе проанализированы результаты изучения Chroomonas acuta Uterm. (Cryptophyta) в фитопланктоне Телецкого озера в период с 1989 по 2012 гг. Приведены особенности морфологического строения и размерные характеристики по данным светового и электронно-микроскопического изучения данного вида в планктоне озера. Выявлена сезонная и межгодовая динамика, отмечены особенности вертикального распределения Ch. acuta в пелагиали глубокого водоема., The results of the study of Chroomonas acuta Uterm. (Cryptophyta) in the phytoplankton of Lake Teletskoye during the period of 1989–2012 were analyzed. The peculiarities of the morphological structure and dimensional characteristics according to the light and electron-microscopic study of the species in the plankton of the lake were given. The seasonal and interannual dynamics as well as the features of Ch. acuta vertical distribution in the pelagic zone of the deep oligotrophic lake were revealed.

Published
2015

26. Chroomonas acuta Uterm. (Cryptophyta) в Телецком озере (Алтай, Россия)

Author

Mitrofanova, E. Yu.; Институт водных и экологических проблем СО РАН, Барнаул Россия and Mitrofanova, E. Yu.; Институт водных и экологических проблем СО РАН, Барнаул Россия

Abstract

В работе проанализированы результаты изучения Chroomonas acuta Uterm. (Cryptophyta) в фитопланктоне Телецкого озера в период с 1989 по 2012 гг. Приведены особенности морфологического строения и размерные характеристики по данным светового и электронно-микроскопического изучения данного вида в планктоне озера. Выявлена сезонная и межгодовая динамика, отмечены особенности вертикального распределения Ch. acuta в пелагиали глубокого водоема., The results of the study of Chroomonas acuta Uterm. (Cryptophyta) in the phytoplankton of Lake Teletskoye during the period of 1989–2012 were analyzed. The peculiarities of the morphological structure and dimensional characteristics according to the light and electron-microscopic study of the species in the plankton of the lake were given. The seasonal and interannual dynamics as well as the features of Ch. acuta vertical distribution in the pelagic zone of the deep oligotrophic lake were revealed.

Published
2015

30. Seasonal patterns of Potamoplankton in a Large Lowland River of Temperate zone (Upper Ob as a case study, Russia).

Author

Mitrofanova, E. Yu

Abstract

The paper presents the results of seasonal potamoplankton dynamics in a Siberian lowland river and its relationships with environmental variables. The sampling was carried out every 10-15 days from April to September 2001 at the left and right banks including the midstream of the Upper Ob River close to the big industrial center,Barnaul city(53°21'24"N, 83°47'14"E). Thepresence of 145 species (158 taxa) with predominance of diatoms (45.6% of total number of species) and green algae (35.8%) was noted. Remarkable seasonal potamoplankton variations were revealed using measures of inclusions and amultigraph. The correlation analysis indicated that physical factors (e.g. hydrological variables) and major nutrients (e.g. nitrates) were of equal importance for controlling the variation in structure and abundance of the large lowland Upper Ob River potamoplankton. Based on the regional trophic classification, the Upper Ob River can be currently characterized as oligo-mesotrophic since the total abundance and biomass of algae were less than 1260×103 cells/L and 780 mg/m3 throughout the sampling seasons. The results of the saprobiologic analysis showed that the greatest number of bioindicators belong to β-mesosaprobionts that is indicative of the β-mesosaprobic environment. Water quality was ranked among I-III classes.Our study presents a baseline formonitoring theplanktonic component in the river ecosystem as a main factor of its stability. In spite of the regional aspect of the study, the investigation of potamoplankton in the environments of the south of West Siberia will be useful for understanding of phytoplankton development in large unregulated lowland rivers. [ABSTRACT FROM AUTHOR]

Published
2015

33. A noteworthy finding of the rare species Nupela neogracillima(Bacillariophyceae) in Lake Teletskoye (Russian Altai)

Author

Mitrofanova, E. Yu. and Genkal

Abstract

This paper reports on a potentially significant discovery of the diatom species Nupela neogracillimaKulikovskiy & Lange-Bertalot in the periphyton of the littoral zone of Lake Teletskoye, a deep lake in Russia's Altai region. Due to its rare occurrence in the algal flora of Russia and other regions, knowledge of the species is of special importance. N. neogracillimainhabits oligotrophic waterbodies in the boreal and Arctic zones of the Northern Hemisphere. Previously, it was sporadically found in the bottom sediments of Lake Teletskoye. Results obtained from electron microscopic scans (SEM), revealed that the size of frustules for the specimens from Lake Teletskoye is less than those recovered from water bodies of the Arctic zone.

Published
2013

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