Elena Krasnova

Elena Krasnova
Lomonosov Moscow State University | MSU · Department of Biology

PhD

About

64
Publications
6,482
Reads
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287
Citations
Citations since 2016
42 Research Items
262 Citations
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20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
20162017201820192020202120220102030405060
Introduction
The White Sea coast rises at a rate of 3-4 mm per year. Sea bays separate from the sea and turn into meromictic reservoirs with incomplete circulation. I am coordinator of the interdisciplinary scientific group that studies the transformation of isolated marine areas.
Additional affiliations
April 1988 - present
Moscow State Forest University
Position
  • Senior Researcher
Education
September 1978 - August 1982

Publications

Publications (64)
Article
Full-text available
The paper provides information about the XXIX Coastal Conference, held in Kaliningrad in April 2022. The thematic directions of reports, round tables are reflected, statistical data are given on the number of speeches (232), on participating organizations (38) and cities (13). Additional events held within the framework of the conference (sessions,...
Article
Anoxygenic photoautotrophic metabolism of green sulfur bacteria of the family Chlorobiaceae played a significant role in establishing the Earth's biosphere. Two known major ecological forms of these phototrophs differ in their pigment composition and, therefore, in color: the green and brown forms. The latter form often occurs in low-light environm...
Article
Fiard coasts are common on the periphery of the areas previously covered by ice sheets. The conditions in such areas are favorable for separation of bays and straits from the sea. As a result of the glacial isostatic adjustment of the area the fiards would be transformed into coastal lakes. To discover the regularities of evolution of such water bo...
Article
The results of studies of four coastal lakes with unique hydrological and hydrochemical structure at different stages of isolation from Kandalaksha Bay of the White Sea are reported for 2012–2019. All waterbodies are characterized by a permanent or seasonal stratified structure; as a result, bacterial sulfate reduction and hydrogen sulfide accumula...
Article
A better understanding of past long-term environmental changes in the subarctic region is crucial for mitigation of the possible negative effects of climate warming in this vulnerable region. This study provides a new multi-proxy reconstruction of regional vegetation changes and peatland development for north-eastern Fennoscandia (Russia) during mo...
Conference Paper
Full-text available
Paper examines ice algae and phytoplankton species composition and abundance in a stratified salt lake separated from the White Sea, in spring after a complete winter washing.
Article
Full-text available
The article presents the results of the studies of physiological state of meiofauna taken from the bottom sediments of two meromictic lakes which had different stages of geological isolation from the White Sea. It was concluded that active living benthic organisms of these high-sulfide biotopes could penetrate no deeper than the upper boundary of t...
Research
Full-text available
Abstracts of the 4th Paleolimnological Conference, Irkutsk, Russia, 2-4 September 2020
Article
Full-text available
Microbiological, molecular ecological, biogeochemical, and isotope geochemical research was carried out at the polar Lake Bol’shie Khruslomeny at the coast of the Kandalaksha Bay, White Sea in March and September 2017. The uppermost mixolimnion was oxic, with low salinity (3–5%). The lower chemocline layer was brown-green colored, with very high co...
Article
Full-text available
Lake Mogilnoe is a rare example of an anchialine lake (with subterranean connection to the ocean) in the Arctic, a refuge for landlocked populations of marine organisms. The lake has been the subject of intensive studies since the end of the 19th century. Here we demonstrate that between the 2003–07 and 2015–18 observation periods this permanently...
Data
Supplementary material for: Strelkov P., Stogov I., Krasnova E., Movchan E., Polyakova N., Goldin S., Ivanov M., Ivanova T., Malavenda S., Fedyuk M. & Shunatova N. 2019. Rapid unpredicted changes in the stratification of marine lake Mogilnoe (Kildin Island, the Barents Sea) through the early 21st century. Polar Research 38. DOI: 10.33265/polar.v38....
Article
Full-text available
Lake Mogilnoe (Kildin Island, the Barents Sea) is a meromictic lake located in the high latitudes of the Arctic. It was formed by separation from the Barents Sea and retained an underground connection with it through a rocky barrier. The first researchers of the lake mentioned the upper fresh-water layer, the middle salty layer, lower anaerobic lay...
Article
An unusual feature of the saline stratified lakes that were formed due to ongoing postglacial uplift on the White Sea coast is the presence of several differently colored thin layers in the zone with sharp gradients. Colored layers in five lakes at various stages of separation from the sea were investigated using optical microscopy, spectrophotomet...
Article
Located on the shore of Kandalaksha Bay (White Sea, Russia) and previously separated from it, Trekhtzvetnoe Lake (average depth 3.5 m) is one of the shallowest meromictic lakes known. Despite its shallowness, it features completely developed water column stratification with high‐density microbial chemocline community (bacterial plate) and high rate...
Article
Full-text available
Optical characteristics of water in stratified lakes of the White Sea are of particular interest in connection with the observation of thin colored layers resulting from massive development of anoxygenic phototrophic bacteria around the chemocline. While optical properties of chlorophyll are widely used in remote sensing, spectral characteristics o...
Article
Absorption and fluorescence spectra for living cells of green sulfur bacteria inhabiting the anaerobic zone of two meromictic lakes separated from the White Sea have been studied. The spectral-optical properties of pure cultures of green-colored and brown-colored species of green sulfur bacteria Chlorobium phaeovibrioides have been compared, and th...
Article
Full-text available
Studies of lakes at different stages of separation from the sea have been carried out on the northwestern coast of Kandalaksha Gulf of the White Sea. At the end of the winter period, from March 16 to 29, 2013, the lakes Kislo–Sladkoe, Trekhtzvetnoe, Nizhnee Ershovskoe, Ermolinskaya Bay and snow near the pier of Pertsov White Sea Biological Station...
Article
Postglacial isostatic uplift of the coastal zone resulted in the formation of isolated lakes along the shores of White Sea developed into permanently stratified (meromictic) lakes. On the basis of monitoring the vertical distribution of selected water quality parameters including temperature, salinity, concentration of major ions, microbial activit...
Article
In oceanographic and limnological studies, spectrophotometry combined with extraction of pig-ments by organic solvents became a routine procedure for chlorophyll (Chl) quantification in algae and cyanobacteria from oxic layers. However, for bacteriochlorophyll (BChl) of phototrophic bacte-ria inhabiting the oxic-anoxic interface and deeper anoxic z...
Article
Full-text available
Sings of meromixis are found by means of microbiological and biogeochemical investigations in the southernn part of the Kanda Bay, an artificial water body separated front the White Sea with a railway dam. The concentration of oxygen in the bottom layer attained 1.9 mmol/L, intensity of the process of microbial sulfate reduction, 3.0 μmol of sulfur...
Article
Full-text available
The isotopic features of Lake Trekhtsvetnoe in the White Sea coast area were studied in 2012–2015 in both winter and summer. Lake Trekhtsvetnoe is a water body, separating from the sea, with constant vertical stratification throughout the observation period. Its isotopic, hydrophysical, and biological characteristics have been studied. By the isoto...
Article
The community of anoxygenic phototrophic bacteria (APB) in the water column of Lake KisloSladkoe (Kandalaksha Bay, White Sea), which has recently become separated from the sea, was investigated in March‒April 2012, March‒April 2013, and in September 2013. The lake, which was previously considered meromictic, was in fact mixed and was strongly affec...
Conference Paper
We analyze the results received from two expeditions performed in August-September 2013, August-September 2014 and February 2015 in the Kandalaksha Bay of the White Sea. Depth profiles of hydrological characteristics and optical properties of water were recorded for five marine lakes being on different stages of isolation from the White Sea. Those...
Conference Paper
Hydrophobic components of cromophoric dissolved organic matter (CDOM) extracted from water samples and sediments taken in several relic basins located on Karelian shoreline of the White Sea were analyzed using spectroscopic techniques. Those water reservoirs exist at various stages of isolation from the White Sea and represent complex stratified sy...
Article
Full-text available
Due to postglacial isostatic uplift many stratified lakes, at different stages of isolation, are located along the shores of the White Sea. In five lakes, located near the White Sea Biological Station of Moscow State University, salinity, temperature, pH, concentration of dissolved oxygen, redox potential, and illuminance were measured. Distributio...
Conference Paper
As a result of a recent years study on the Karelia shore of the White Sea more than ten relict lakes in different stages of separation from the sea have been discovered. Five of them are located close to the Nikolai Pertsov White Sea Biological Station of Moscow State University. Such separated lakes are interesting to explore for their firm vertic...
Article
Full-text available
Water bodies separating from the sea have recently been an object of increasing interest among specialists in various fields. Kislo-Sladkoye Lake situated near the White Sea Biological Station of Moscow State University is one of the model separating water reservoirs. The lake is under monitoring for hydrological, hydrochemical, and microbiological...
Article
Full-text available
In this work, a description of the hydrological features of the lake Kislo-Sladkoye is given. The pre-sent work is a part of complex research on bottom topography, hydrological characteristics, water light absorption spectra at different depths, benthos communities, and ecological features of mac-robenthic and terrestrial organisms. Vertical profil...
Article
Full-text available
The article presents the results of field studies carried out by the Department of Land Hydrology, Faculty of Geography, Lomonosov Moscow State University, in the area near the White Sea Biological Station, Moscow State University (Kandalaksha Bay, White Sea) in January, June, and September 2014 and January 2015. The objects of studies were the uni...
Article
Full-text available
Many lakes at different stages of separation from the sea were formed along the coast of Kandalakshsky Gulf of the White Sea because of a rapid glacioisostatic lifting. The natural stage of their hydrological evolution is the meromixis. Five stratified lakes at different stages of isolation were studied in 2010-2014. The studies included echo-sound...
Conference Paper
Full-text available
Landscapes, flora and fauna of the White Sea differ not only from those of central Russia but also from other northern territories. Natural objects and natural phenomena that reflect the special character of the region - tidal motion, skerries, corgas, baklyshes and ludas, relict salt lakes, signs of ancient earthquakes etc - can be offered for the...
Conference Paper
Full-text available
Because of postglacial isostatic uplift with an average speed of 32 cm per century, many of the White Sea bays are separated gradually from the sea. At the intermediate stages usually the meromixis is observed. At the boundary of aerobic and anaerobic layers there is of 10-50 cm thick redox zone colored in green or red with sharp physical and chemi...
Conference Paper
Full-text available
As a result of a recent years study on the Karelia shore of the White Sea more than ten lakes in different stages of separation from the sea have been discovered. Five of them are located close to the Nikolay Pertsov White Sea Biological Station of Moscow State University. The process of converting a marine environment into a lake encompasses chang...
Article
Full-text available
Bloom of a cryptomonad alga Rhodomonas sp. (Cryptophyta, Pyrenomonadaceae) was observed in the chemocline of saline basins separating from the White Sea, resulting in red coloration of the relevant water layer. According to the sequence of the 18S nuclear rRNA gene, this species was identical to Rhodomonas sp. RCC2020 (GenBank accession no. JN93467...
Conference Paper
Full-text available
Research is initiated to study water samples from stratified water basins in the Kandalaksha Gulf of the White Sea at different stages of their separation from the sea. The objects of research are lakes Elovoe and Nizhnee Ershovskoe located close to the Nikolai Pertsov White Sea Biological Station. Depth profiles of physico-chemical characteristics...
Article
Full-text available
This study aimed to analyze the oxygen isotope composition of water, ice, and snow in water bodies isolated from the White Sea and to identify the structural peculiarities of these pools during the winter period. The studies were performed during early spring in Kandalaksha Bay of the White Sea, in Velikaya Salma Strait and in Rugoserskaya Inlet. T...
Conference Paper
Full-text available
Research is initiated to study water samples from stratified water basins in the Kandalaksha Gulf of the White Sea at different stages of their separation from the sea. The objects of research are lakes Elovoe and Nizhnee Ershovskoe located close to the Nikolai Pertsov White Sea Biological Station. Depth profiles of physico-chemical characteristics...
Article
Full-text available
The multidisciplinary expedition was performed from March 20 to April 2, 2012, on the Kindo Peninsula in Kandalaksha Bay of the White Sea. The expedition was aimed to study the salty waterbodies that appeared due to the separating of the sea inlets from the sea by the isostatic lifting of the seashore. The scientists from the Biological and Geograp...
Chapter
Full-text available
The role of marine and coastal protected areas (MCPAs) is becoming increasingly important in the changing Arctic. These protected areas potentially facilitate the adaptation of natural ecosystems to climate change by mitigating direct anthropogenic threats, balance various kinds of space and resources use, and alert the society to changes taking pl...
Book
Full-text available
In this era of climate change and increasing economic activity in the Arctic, this publication, prepared by the specialists of leading scientific institutions of the Russian Academy of Sciences, universities, the Ministry of Natural Resources and Ecology of the Russian Federation, and the Federal Agency of Fishery, provides a crucial foundation for...
Conference Paper
Full-text available
Introduction The Eurasian Crane (Grus grus) is a rare breeding bird listed in the Red Data Book of the Moscow Re-gion. Cherusty's local crane population inhabits a large unpopulated forest south of Cherusty village in the Shatura district of the eastern Moscow Region. The distance from Moscow is about 140 km. It was discovered by the Student Group...
Article
Full-text available
Analyses of the primary structure of the 18S rRNA gene and D3 segment of the 28S rRNA, as well as evidence from the secondary structure of the SSU rRNA V7 region, suggest that Anoplostoma rectospiculum (Anoplostomatidae) has closer relationships to the family Enoplidae than to the Oncholaimidae. In phylogenetic trees derived from full length SSU rR...
Conference Paper
Full-text available
Eleven wader species are included in the first version of the Red Data Book of the Moscow region. One of these species - J ack Snipe Lymnocryptus minimus ceased breeding at the end of the 19th or beginning of the 20th century; three species, i. e.Oystercatcher Haematopus ostralegus, Wood Sandpiper Tringa glareola and Greenshank T. nebularia breed i...

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