
Olga KonovalovaLomonosov Moscow State University | MSU · Department of Biology
Olga Konovalova
PhD
About
38
Publications
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Introduction
Additional affiliations
June 2008 - January 2016
Publications
Publications (38)
Introduction
Methane seeps influence surrounding benthic communities in different ways from slight changes in benthic abundance and biomass to major altering the species composition.
Materials and Methods
We studied benthic communities of 14 methane seep flares in Laptev and East Siberian seas with comparative analysis of species composition and a...
Metagenomics is a powerful tool to study marine microbial communities. However, obtaining high-quality environmental DNA suitable for downstream sequencing applications is a challenging task. The quality and quantity of isolated DNA heavily depend on the choice of purification procedure and the type of sample. Selection of an appropriate DNA isolat...
Metagenomics is widely applied to study marine microbial communities. High quality DNA samples is critical for metagenomic projects success. In this work, we systematically evaluated the performance of eight widely used commercial DNA purification kits (Stool; Microbiome; PowerFecal; Blood and Tissue, and PowerSoil (all from Qiagen), PureLink Micro...
Macrofauna can contribute substantially to the organic matter cycling on the seafloor, yet the role of terrestrial and chemosynthetic organic matter in the diets of microphagous (deposit and suspension) feeders is poorly understood. In the present study, we used stable isotopes of carbon and nitrogen to test the hypothesis that the terrestrial orga...
The Pechora River forms the large Pechora River plume in the southeastern part of the Barents Sea (also called the Pechora Sea). Many previous works addressed water masses in the Barents Sea, however, the Pechora plume received relatively little attention, therefore, many basic aspects of its structure and variability remain unknown. In this study,...
Dissolved organic matter (DOM) is an important component of aquatic environments; it plays a key role in the biogeochemical cycles of many chemical elements. Using excitation-emission matrix fluorescence spectroscopy, we examined the fluorescent fraction of DOM (FDOM) produced at the stationary phase of growth of five strains of microalgae sampled...
The paper presents the results of in situ studies of marine particles of different nature using a submersible digital holographic camera (DHC) during the Arctic expedition. It also describes the features, performance specifications, and possibilities of the DHC and the DHC technology. The DHC technology can be used for noninvasive automatic evaluat...
The Gulf of Ob is among the largest estuaries in the World Ocean in terms of area, watershed basin, and freshwater discharge. In this work, we describe the roles of river discharge and wind forcing on the water exchange between the Gulf of Ob and the Kara Sea during ice-free seasons. This work is based on the extensive in situ measurements performe...
Biofouling of artificial substrates is a well-known phenomenon that can negatively impact offshore industry operations as well as data collection in the ocean. Fouling communities worldwide have mostly been studied within the top 50 m of the ocean surface, while biofouling below this depth remains largely underreported. Existing methods used to stu...
Birds developed endothermy and four-chambered high-performance heart independently from mammals. Though avian embryos are extensively studied and widely used as various models for heart research, little is known about cardiac physiology of adult birds. Meanwhile, cardiac electrophysiology is in search for easily accessible and relevant model object...
We present the first study on the quantity and diversity of the mycobiota in bottom sediments of the Chukchi Sea. During implementation of the RUSALCA-2012 program, 22 samples of bottom sediments from depths of 44–110 m were collected in late August–early September 2012. Fungi were isolated on agarized media (salinity 35 psu, temperature 6°C). Spec...
This paper presents results from a study of phytoplankton communities that was performed in 2015
at 213 stations in the southwestern part of the Kara Sea. The values of primary production at most stations
exceeded the estimates obtained in 1993 by several times. A continued increase in productivity indices and no
outbreaks of phytoplankton were con...
Morphological descriptions of three "walking nematode" species found for the first time in the White Sea are presented. Draconema ophicephalum (Claparède, 1863) (Draconematidae) and Epsilonema steineri Chitwood, 1935 (Epsilonematidae), both known from insufficient material and females only, are re-described and problems of their taxonomic identific...
The Kets, an ethnic group in the Yenisei River basin, Russia, are considered
the last nomadic hunter-gatherers of Siberia, and Ket language has no
transparent affiliation with any language family. We investigated connections
between the Kets and Siberian and North American populations, with emphasis on
the Mal'ta and Paleo-Eskimo ancient genomes us...
This research is dedicated to the complexes of the soil micromycetes of the tropical dipterocarp forest. Samples of soil and leaf litter were selected on the territory of the forest Ma Da in the reserve Dong Nai (Dong Nai province, South Vietnam) in primary dipterocarp forest (the main tree species are Dipterocarpus dyeri, Irvingia malayana), which...
Here is a first record for a mitochondrial genome of marine fungus Acremonium fuci and closely related species Emericellopsis sp. One strain for each species, differentiated by morphological features was studied. Complete mitochondrial sequences are 24 565 and 24 951 bp in length. The circular molecule encodes all genes typical for fungal mitochond...
The Kets, an ethnic group in the Yenisei River basin, Russia, are considered the last nomadic hunter-gatherers of Siberia, and Ket language has no transparent affiliation with any language family. We investigated connections between the Kets and Siberian and North American populations, with emphasis on the Mal'ta and Paleo-Eskimo ancient genomes, u...
Morphological, cultural, and physiological characteristics of 19 Helminthosporium-like hyphomycetes isolated from the White Sea were studied. Taxonomic status of the isolates was verified using molecular genetics techniques. One of the isolates was identified as Alternatia sp., while the rest of the marine isolates belonged to the species Paradendr...
Cyanea is a genus of large bloom-forming scyphozoans, including some of the most conspicuous representatives of megaplankton. Its taxonomy has been revised repeatedly throughout the last century due to the fact that most of the morphological characteristics of Cyanea species, such as color, structure of gastrovascular system and number of tentacles...
MSU) is an educational and research center established in 1938 for performing marine scientific studies and conducting field summer practice for the students in northern areas. The station is located on the Karelian coast of the White Sea, on Kindo Peninsula (66°34′ N, 33°08′ E) (Fig. 1). The weather conditions [1], oceanographic peculiarities [2,...
This review covers the history of the mycological studies performed at Pertsov White Sea Biological Station, Moscow State University (WSBS MSU). The WSBS was established more than 70 years ago;
presently, it is one of the main divisions of the university, where numerous educational and research marine
programs are fulfilled. Mycological studies hav...
The morphology and anatomy of the pelagic polychaetous worm, Pelagobia longicirrata (Greef 1879), from the Southern ocean (Drake Strait) are described using histological methods and both light and scan electronic microscopy. An anterio-ventral gland complex and special ciliate fields are described for the first time. The presence of pharyngeal jaws...
Stigmidium ascophylli is a symbiotic fungus which lives in brown algae Ascophyllum nodosum and Pelvetia canaliculata. We studied biology of this species in White Sea. Life cycle of S. ascophylli is much shorter in White Sea because of winter ice cover, then in other studied regions. Reproduction of Stigmidium and Ascophyllum is synchronized as was...
There were investigated epi- and endophytic fungal communities associated with seaweeds Ascophyllum nodosum (L.) Le Jolis, A. nodosum ecad. muscoides Maximova et Mugue and Pelvetia canaliculata (L.) Dene et Thur, widespread in White Sea (NW Russia) intertidal zone. Using cultivation on original Ascophyllum-agar marine media (24‰), 50 species of fun...