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Vladimir Mukhanov

Vladimir Mukhanov
Kovalevsky Institute of Biology of the Southern Seas · Department of Plankton

PhD

About

18
Publications
6,842
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222
Citations

Publications

Publications (18)
Article
The principal objectives of this research are to measure the non-consumptive mortality rate of marine copepod zooplankton and the sedimentation rate of copepod carcasses, using short-term sediment traps, and to reveal a correlation between the rates of the two competitive processes—sedimentation and degradation of the carcasses under turbulent mixi...
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Abundance, chemical composition and ecological risk of microplastics (MPs) in terrestrial and marine environments have merited substantial attention from the research communities. This is the first attempt to comprehend the ecological risk of MPs in sediments along the Indian coast using meta-data. Polymer hazard index (PHI), pollution load index (...
Article
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This study aims at reviewing the scientific literature related to microplastic (MP) pollution in various environmental matrices in India and highlighting the research gaps for future research priorities. Currently used methods for sampling, extraction, identification, characterization and quantification of MPs were assessed, and sources, distributi...
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Full-text available
Fourier transform infrared (FTIR) spectroscopy has been extensively used in microplastic (MP) pollution research since 2004. The aim of this review is to discuss and highlight the recent advances in FTIR (spectroscopy and chemical imaging) techniques that are used to characterize various polymer types of MPs and to trace their fate and transport in...
Article
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Microplastics (MPs) are recognized as a global emerging threat to aquatic ecosystems and biodiversity worldwide. Though the number of publications and interest to the MP research have been increased rapidly, it is still hamper to compare the obtained data due to the usage of different methodologies in MP assay. Thus, there is an urgent need for a s...
Article
It is a common practice for planktonologists to use neutral red (NR) staining to identify viable copepods in marine zooplankton. A new fluorescent dye, fluorescein diacetate (FDA), has also been successfully applied to Copepoda. Meanwhile, almost nothing is known about if NR- and FDA-based viability assays are applicable to many other zooplankton t...
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Intense pollution of marine environments with plastic waste, including micro- and nanoplastics, is a new and poorly studied threat measured in tens of million tonnes annually. Despite a huge scale of the problem, almost nothing is known about pathways and mechanisms of involvement of micro- and nanoplastics in marine food webs, trophic processes, g...
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Bio-optical data, obtained during six cruises in the Black Sea carried out during periods of seasonal stratification in years between 1996 and 2016, have been used to parametrize phytoplankton light absorption ( ) in the deep chlorophyll maximum (DCM) layer located near the bottom of euphotic zone. Relationships between and the sum of chlorophyll-a...
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To explain higher fraction of live zooplankton in heavily polluted and eutrophic Sevastopol Bay comparing with cleaner adjacent waters, a hypothesis has been proposed and tested experimentally that more intensive bacteria-driven decomposition of dead organisms in the bay reduced their pool and, as a result, increased the live-to-dead zooplankton ra...
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Standard NASA ocean color algorithm OC4 was developed on the basis of ocean optical data and while appropriate for Case 1 oceanic waters could not be adequately applied for the Black Sea waters due to its different bio-optical properties. OC4 algorithm is shown to overestimate chlorophyll concentration (Chl-a) in summer and underestimate Chl-a duri...
Article
Full-text available
To explain higher fraction of live zooplankton in heavily polluted and eutrophic Sevastopol Bay comparing with cleaner adjacent waters, a hypothesis has been proposed and tested experimentally that more intensive bacteria-driven decomposition of dead organisms in the bay reduced their pool and, as a result, increased the live-to-dead zooplankton ra...
Article
Full-text available
Genetic diversity of T4-like bacteriophages was shown to be high in contiguous freshwater, marine and hypersaline biomes by the major capsid gene g23 sequencing. The biomes differed significantly in terms of g23 sequence diversity. The hypothesis of inter-biome invasions of T4-like bacteriophages is discussed.
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Full-text available
Abundance and seasonal trophodynamics (specific growth rate, daily production, and grazing mortality) of the major picophytoplankton components, Synechococcus cyanobacteria (Syn) and picoeukaryotes (Pico-E), were studied at three stations in Sevastopol Bay and adjacent coastal waters (the Black Sea) in 2014 by flow cytometry and the dilution method...
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The results of ecological and phylogenetic studies of femtoplankton, the smallest size fraction of plankton formed by viruses and ultramicrobacteria (UMB), are overviewed to shed light on the problem of transbiome invasions by microbes. Phylogenetic lineages of viruses and UMB are shown to be associated with particular biomes, thus indicating infre...
Article
Cyanophages of the family Myoviridae were studied in Lake Hovsgol based on the analysis of g20 gene fragments. The analysis revealed the diversity of g20 cyanomyovirus sequences in Lake Hovsgol. It was found a great similarity of genes from the Lake Hovsgol and Lake Baikal. Distribution of closely related virus strains in these water bodies is attr...
Article
The diversity of the Myoviridae family cyanophages that inhabit Lake Khövsgöl was studied by analyzing g20 gene fragments. It was shown that the gene sequences of cyanomyoviruses are diverse and similar to those of the viruses from Lake Baikal. The presence of closely related virus strains in these lakes is associated with the geographical proximit...

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Projects

Projects (5)
Project
Developing "fingerprinting" methods to track the changes in microplastic properties due to its ageing.& Identification of ‘hot spots’ using field data and numerical modeling.