Documents published in Scipedia

• The Potential Role of Migratory Birds in the Spread of Tick-borne Infections in Siberia and the Russian Far East

  N. Moskvitina, I. Korobitsyn, O. Tyutenkov, S. Gashkov, Y. Kononova, S. Moskvitin, V. Romanenko, T. Mikryukova, E. Protopopova, M. Kartashov, E. Chausov, S. Konovalova, N. Tupota, A. Sementsova, V. Ternovoy, V. Loktev

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  From 2006 to 2011, in the Tomsk region (south of Western Siberia), eight species of pathogens were detected in birds and the ticks feeding on them: Tick-borne encephalitis virus (TBEV), West Nile virus (WNV), Borrelia spp., Rickettsia spp., Bartonella spp., Anaplasma spp., Ehrlichia spp., and Babesia spp. The identification of a number of strains of viruses and bacterial genovariants related geographically with the Russian Far East, Eastern Siberia, China and Japan and confirms the possibility of the role of birds in the spread of pathogens in the direction of Western Siberia and back. Most of the species that breed and migrate in Western Siberia are of Eastern origin and mostly fly for wintering to South-East Asia. Among these species in our samples, Phylloscopus proregulus was a carrier of both TBEV and Bartonella spp., Luscinia calliope were infected with both TBEV and Borrelia, while Tarsiger cyanurus were infected with WNV.

  Abstract
  From 2006 to 2011, in the Tomsk region (south of Western Siberia), eight species of pathogens were detected in birds and the ticks feeding on them: Tick-borne encephalitis [...]

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• Sodium Bicarbonate as Inorganic Carbon Source for Higher Biomass and Lipid Production Integrated Carbon Capture in Chlorella vulgaris

  K. Mokashi, V. Shetty, S. George, G. Sibi

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  Chlorella vulgaris was isolated from sewerage treatment plant and grown in the presence of sodium bicarbonate as carbon source at 0.25, 0.5 and 1.0 g L− 1 . Highest specific growth rate (0.653 μ d− 1 ) was obtained with 1 g L− 1 bicarbonate followed by 0.5 g L− 1 (0.641 d− 1 ) on 15th day culturing. Total chlorophyll content of microalgae has increased in a dose dependent fashion with bicarbonate addition and maximum level recorded in 1 g L− 1 (0.769 ± 0.09 g L− 1 ). The biomass productivity was in the range of 0.237–0.996 g d− 1 L− 1 . Rate of CO2 fixation and carbon content, in terms of quantity was estimated. Results showed that at 1 g L− 1 sodium bicarbonate concentration, maximum CO2 fixation (0.497 g/dry weight) and carbon content (0.69 g mL− 1 day− 1 ) was found. Biomass concentration was significantly higher (p < 0.05) in cultures (1.54 g L− 1 ) supplemented with 1 g L− 1 bicarbonate whereas there was no much difference in cellular lipid concentration (16 mg mL− 1 ). GC–MS analysis of fatty acids showed highest amounts of palmitic acid, myristic and stearic acid. In summary, the addition of sodium bicarbonate increases cellular abundance, chlorophyll content and to some extent in the case of lipid content in C. vulgaris integrated with CO2 sequestration.

  Abstract
  Chlorella vulgaris was isolated from sewerage treatment plant and grown in the presence of sodium bicarbonate as carbon source at 0.25, 0.5 and 1.0 g L− 1 . Highest specific [...]

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• Assessing the Influence of Environmental Parameters on Amur Tiger Distribution in the Russian Far East Using a MaxEnt Modeling Approach

  D. Matyukhina, D. Miquelle, A. Murzin, D. Pikunov, P. Fomenko, V. Aramilev, M. Litvinov, G. Salkina, I. Seryodkin, I. Nikolaev, A. Kostyria, V. Gaponov, V. Yudin, Y. Dunishenko, E. Smirnov, V. Korkishko, J. Marino

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  A better understanding of which biological and anthropogenic parameters are strong predictors of suitable habitats for tigers will help address conservation planning in those areas, which is crucial for maintaining connectivity and preventing further population fragmentation. The aim of this study was to develop a spatial model based on a number of environmental and anthropogenic variables as well as tiger presence data from a 2005 large-scale winter survey to predict Amur tiger distribution within its range in the RFE. Modeling the geographic distribution of Amur tigers required an application of the MaxEnt algorithm using a dataset of 1027 tiger track records and a set of environmental variables, such as distance to rivers, elevation and habitat type, and anthropogenic variables, such as distance to forest and main roads, distance to settlements and vegetation cover change. The models were divided into two groups based on elevation and habitat type. Elevation (AUC = 0.821) appeared to be a better predictor of habitat suitability for tigers than habitat type (AUC = 0.784).

  Abstract
  A better understanding of which biological and anthropogenic parameters are strong predictors of suitable habitats for tigers will help address conservation planning in those [...]

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• Economic Production and Oil Recovery Efficiency of a Lipopeptide Biosurfactant from a Novel Marine Bacterium Bacillus simplex

  P. Mani, P. Sivakumar, S. Balan

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  The use and commercial applications of biosurfactants in the petroleum industries have been raised during the past decades. Marine bacteria and their efficiency in crude oil recovery has been less studied than terrestrial strain, hence this present study. A novel marine bacterium Bacillus simplex having promising biosurfactant production was isolated from a petroleum hydrocarbon-contaminated coastal sea sediment samples of Nagapattinam fishing harbor, Tamil Nadu, India. This strain showed most economical biosurfactant production with an agro-industrial waste substrate, sunflower oil cake at 54th h time incubation along with the cultural conditions of 20 ppt salinity, 35 °C temperature, and pH 7. The produced biosurfactant was purified, which was accounted at 908 ± 7 mg/L on dry weight basis. The biosurfactant was identified as lipopeptide with a molecular mass of 1111.1 Da which was deduced using TLC, biochemical estimation methods, FT-IR, NMR, and MALDI-TOF MS analysis. Furthermore, this purified lipopeptide surfactant showed consistent and enhanced crude oil recovering efficiency under different salinity conditions (0–30%). Based on the above facts, the isolated novel marine bacterium proved its cheaper production of novel biosurfactant and its promising oil recovering efficiency even at hypersaline conditions. Further, this is the first report of a biosurfactant from the bacterium Bacillus simplex.

  Abstract
  The use and commercial applications of biosurfactants in the petroleum industries have been raised during the past decades. Marine bacteria and their efficiency in crude oil [...]

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• New Data Regarding the Helminth Fauna of Wild Ruminants in Primorsky Krai

  D. Maksimova, I. Seryodkin, D. Kuznetsov

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  The results of an investigation of the helminth fauna of musk deer, Siberian roe deer and Manchurian deer in Primorsky Krai are provided. Regarding the musk deer, the nematodes Spiculopteragia spiculoptera, Nematodirus filicolis, Pygarginema skrjabini and Trichuris sp. have been registered. The intensities of the infections ranged from 1 to 6 specimens. In one case, 66 specimens of P . skrjabini were found in the omasum of a musk deer. S . spiculoptera was registered in the musk deer for the first time. All of the examined roe deer were infected with helminths, S . spiculoptera dominated, and N . filicolis, P . skrjabini, Mazamastrongylus dagestanica and Dicrocoelium dendriticum were also recorded. Ostertagia antipini species and the minor morph of S . spiculoptera, “Rinadia mathevossiani ”, were registered for the first time in Primorsky Krai. The Manchurian deer carried S . spiculoptera and D . dendriticum .

  Abstract
  The results of an investigation of the helminth fauna of musk deer, Siberian roe deer and Manchurian deer in Primorsky Krai are provided. Regarding the musk deer, the nematodes [...]

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• Musk Deer (Moschus moschiferus ) Population Density Based on Pellet Group Count Method in Sikhote-Alin

  D. Maksimova, I. Seryodkin, V. Zaitsev

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  As a component of a complex program studying musk deer ecology in the Sikhote-Alin Biosphere Reserve, a survey of the musk deer population density, based on pellet group count method, was carried out at stationary posts from 2012 to 2014. The use of this method in the snowless season provides a means of surveying the most hard-to-reach areas of the musk deer habitat.

  Abstract
  As a component of a complex program studying musk deer ecology in the Sikhote-Alin Biosphere Reserve, a survey of the musk deer population density, based on pellet group count [...]

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• Research Program of Musk Deer Ecology in the Sikhote-Alin Region

  D. Maksimova, I. Seryodkin, V. Zaitsev, D. Miquelle

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  Since 2010, a comprehensive program of studying musk deer has been conducted in the Sikhote-Alin region. This musk deer study program has employed the methods of radio telemetry, visual observation, life activity traces survey and photo-video traps. New data on the use of space by musk deer, as well as their daily activity, nutrition, labeling and distribution activities, have been obtained. The research herein demonstrates the necessity for the application of scientific knowledge on the ecology of musk deer for conservation and sustainability.

  Abstract
  Since 2010, a comprehensive program of studying musk deer has been conducted in the Sikhote-Alin region. This musk deer study program has employed the methods of radio telemetry, [...]

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• Organic Matter in the Small Lakes of the Sikhote-Alin Biosphere Reserve

  T. Lutsenko, E. Chernova, E. Lysenko, D. Ryzhakov

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  The carbon concentration and distribution in dissolved organic matter (DOM) and particulate organic matter (POM) in the lagoon lakes Blagodaty and Golubichnoe located in the Sikhote-Alin Nature Reserve and Lake Vaskovskoye оf the Dalnegorsk urban district of Primorsky Krai were analysed using data collected in July–August of 2011–2014. The content of DOM carbon ranged from 1.9 to 8.6 mg/l, representing 68–90% of the total organic carbon. Reductions in the POM carbon concentration and organic carbon percentage of the particulate matter in the sequence of the lakes Blagodaty–Golubichnoe–Vaskovskoye were determined. Analysis of the SUVA254 dynamics and the fluorescence intensity revealed a trend of simplification of the molecular structure of DOM from the surface to a depth of 1 to 1.5 m in lakes Golubichnoe and Vaskovskoye as well as at the northern station in the brackish Blagodaty Lake.

  Abstract
  The carbon concentration and distribution in dissolved organic matter (DOM) and particulate organic matter (POM) in the lagoon lakes Blagodaty and Golubichnoe located in the [...]

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• Helminth Fauna of the Siberian Roe (Capreolus pygargus ) Digestive Tract

  D. Kuznetsov, I. Seryodkin, D. Maksimova, A. Khrustalev

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  A helminthological study of six adult Siberian roe deer (Capreolus pygargus ) individuals from Primorsky Krai was performed. The abomasa and small intestine contents were assessed. All animals were infected with nematodes, and the intensity of infection ranged from tens to hundreds of specimens. Spiculopteragia spiculoptera was the dominant species, and Mazamastrongylus dagestanica and Nematodirus filicollis were also detected. Ostertagia antipini and a minor morph of S. spiculoptera, “Rinadia mathevossiani ”, were observed for the first time in Primorsky Krai. In addition, the Spirurida nematode Pygarginema skrjabini was detected in one roe, and the trematode Dicrocoelium dendriticum was found in the small intestines of two roes.

  Abstract
  A helminthological study of six adult Siberian roe deer (Capreolus pygargus ) individuals from Primorsky Krai was performed. The abomasa and small intestine contents were [...]

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• On the Helminthofauna of Moschus Moschiferus

  D. Kuznetsov, I. Seryodkin, D. Maksimova, A. Khrustalev

  Collection of Achievements in the Life Sciences (2017).

  
  

  Abstract

  A helminthological study of the digestive tracts of 15 Far Eastern musk deer (Moschus moschiferus turovi ) of Primorsky Krai detected single nematodes, which were assigned to the following taxons: Spiculopteragia spiculoptera, Nematodirus filicolis, Pygarginema skrjabini, and Trichuris sp. The species S. spiculoptera was registered for musk deer for the first time. Analyses of the literature data on the species composition of musk deer helminths concluded that there was a necessity for further helminthological studies examining these ruminants.

  Abstract
  A helminthological study of the digestive tracts of 15 Far Eastern musk deer (Moschus moschiferus turovi ) of Primorsky Krai detected single nematodes, which were assigned [...]

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