Труды сотрудников ИВМ СО РАН

/ G. V. Makarskaya, A. V. Andrianova, S. V. Tarskikh // Contemp. Probl. Ecol. - 2016. - Vol. 9, Is. 5. - P574-581, DOI 10.1134/S1995425516050103 . - ISSN 1995-4255
Аннотация: Adaptations of living organisms to the environment are formed and manifested at different levels, from molecular to biocoenotic. Nowadays, the metabolic antioxidant system (AOS) is considered the key part of the process of adaptation; its activation is considered a general response of biota to the negative effect of the environment. The usage of AOS components as biomarkers of the stress condition in hydrobionts has good prospects; it is actively applied in the monitoring of aquatic ecosystems. Here, the kinetics of the free radical formation in various zoobenthic species from the Yenisei River (amphipods, oligochaetes, leeches, and chironomids) and in the amphipods from the Us River (a small mountain river, the Yenisei tributary) is analyzed. The parameters of kinetics of radical formation were registered in vitro in the homogenates of hydrobionts tissues under the initiation of the oxidative stress by the hydrogen peroxide using luminol-dependent chemoluminescence. In amphipods, unlike other invertebrates, the antioxidative activity is characterized by two chemiluminescent peaks. In addition, the kinetics of free radical elaboration has interspecific and agerelated variability in amphipods. In Gmelinoides fasciatus Stebb., the peak of the free radical elaboration and their total number significantly exceeded these parameters for Gammarus sp. and Eulimnogammarus viridis Dybowsky in a 60-min period. The increase of the production of free radicals in E. viridis and Gammarus sp. and its decrease in G. fasciatus were age-dependent. A significantly higher production of free radicals has been registered in G. fasciatus and E. viridis inhabiting the zone of elevated anthropogenic load in the Yenisei River. © 2016, Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50/44, Krasnoyarsk, Russian Federation
International Scientific Centre for Organism Extreme Conditions Research at Presidium of Krasnoyarsk Scientific Centre, Siberian Branch, Russian Academy of Sciences, Akademgorodok 50, Krasnoyarsk, Russian Federation
Scientific Research Institute of Ecology of Fishery Reservoirs, ul. Parizhskoi Kommuny 33, Krasnoyarsk, Russian Federation

Доп.точки доступа:
Makarskaya, G. V.; Andrianova, A. V.; Tarskikh, S. V.

/ A. V. Andrianova, O. E. Yakubaylik, Y. V. Shan’ko // Russ. J. Biol. Invasions. - 2018. - Vol. 9, Is. 4. - P299-312, DOI 10.1134/S2075111718040021 . - ISSN 2075-1117
Аннотация: Abstract: The results of hydrobiological studies of expeditions conducted in 2015–2016 in several zones of the Yenisei River from its head to the mouth are presented. This work deals with the spatial dynamics of the amphipod community, in which the leading positions are occupied by invaders from Baikal. The invaders spread through the Angara River not only with the current but also against the current of the Yenisei. Eight species of amphipods were identified, and there were two representatives of native fauna (Pontoporeia affinis and Gammarus sp.) and six Baikal endemics among them. Throughout the river, Gmelinoides fasciatus dominated quantitatively among the gammarids; Philolimnogammarus viridis took second place. Only in the lower reaches and in the delta of the Yenisei were the leading positions surrendered to Pontoporeia affinis—a representative of the estuary-relic complex of organisms. Baikal endemics populated actively the Upper Yenisei section below the Sayano-Shushensky hydroelectric power station (HPS), especially in the areas of massive macrophyte distribution. The main vector of Baikal endemics spreading in the Yenisei is self-colonization through the Angara River, noticed by researchers in the 19th century. For G. fasciatus, its intentional introduction into the Krasnoyarsk Reservoir in the late 1960s with the aim of increasing the food supply was an additional stimulus for the growth of the population below and above the Krasnoyarsk HPS. Naturalization of Ph. viridis in the Upper Yenisei section was probably aided by an accidental introduction. There is a divergence of ecological niches in G. fasciatus and Ph. viridis in the Yenisei: the dominant prefers silty sand-and-shingle biotopes with a calm rate of speed; the subdominant tends to prefer stony-pebble bottom washed by a rapid current. Over the last 15 years, the density and proportion of crustaceans in the zoobenthos have increased in the Angara–Podkamennaya Tunguska section. The results of hydrobiological studies have been designed in the form a geospatial database in a geoportal, which makes it possible to visualize information as interactive thematic maps and which provides the direct access to data via web mapping services from the modern GIS software. © 2018, Pleiades Publishing, Ltd.

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Держатели документа:
Institute of Computational Modeling, Siberian Branch, Russian Academy of Sciences, Krasnoyarsk, 660036, Russian Federation
Scientific Research Institute of Ecology of Fishery Reservoirs, Krasnoyarsk, 660097, Russian Federation
Siberian Federal University, Krasnoyarsk, 660041, Russian Federation

Доп.точки доступа:
Andrianova, A. V.; Yakubaylik, O. E.; Shan’ko, Y. V.