Grigorii M. Chuiko

Grigorii M. Chuiko
Russian Academy of Sciences | RAS · Papanin Institute of the Biology of Inland Waters

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49
Publications
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645
Citations
Citations since 2017
15 Research Items
190 Citations
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040
2017201820192020202120222023010203040

Publications

Publications (49)
Article
Introduction: An urgent problem of aquatic ecotoxicology is the global pollution of the aquatic environment with hazardous persistent organic pollutants (POPs). They persist in the environment despite the ban on their production and use in most industrialized countries. The danger of POPs for humans and animals depends on duration of their stay in...
Article
Patterns of bioaccumulation of polychlorinated biphenyls (PCB) by chironomid larvae (Chironomus riparius Meigen) were studied under laboratory conditions. Larvae were maintained for 20 days, separately in two batches of natural bottom sediments sampled from Rybinsk Reservoir (Russia), each differing in PCB content (425.6 µg / kg or 24.8 µg / kg dry...
Article
The effects of 30-day exposure to Roundup at concentration of 2 μg/L and of thermal stress on the intestinal glycosidase activities (maltase and amylolytic activities (AA)), brain acetylcholinesterase (AChE) activity and water-soluble protein (WSP) content in juvenile specimens of Amur sleeper Perccottus glenii Dybowski have been studied. Additiona...
Article
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Based on the materials of monitoring of bottom sediments and a special voyage of the RV Akademik Topchiev in 2016–2018 in the Sheksna Reach of the Rybinsk Reservoir which is a recipient of semi-purified waste waters from chemical and metallurgical enterprises of the city of Cherepovets, the role of the littoral zone in dilution of pollutants in wat...
Article
Рассмотрены особенности показателей кардиоактивности и накопления металлов в тканях дву- створчатых моллюсков из различных акваторий восточной части Финского залива и Рыбинско- го водохранилища. Проведен анализ функционального состояния моллюсков с использованием оригинального гиперосмотического тест-воздействия. Предложен подход к ранжированию кач...
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The characteristics of cardioactivity and the accumulation of metals in the tissues of bivalve mollusks from different water areas of the eastern Gulf of Finland and Rybinsk Reservoirs have been considered. The functional state of the mollusks has been analyzed with the use of original hyperosmotic test impact. An approach is proposed to ranking th...
Book
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Abstract: The book generalizesthe results of the integrated monitoring of the ecosystem and special studies in the Rybinsk Reservoir during the years of its existence with a particular emphasis on the period of the last 15 years. The work highlights fundamental problems of hydrobiology and ecology, and the relationships between the long-term dynami...
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The effects of exposure to low-intensity continuous radiation in the red and near-infrared regions of the spectrum, as well as to infrared pulsed radiation, on the early development of zebrafish (Danio rerio) were studied. It was found that the use of continuous radiation at the red and infrared wavelengths (633 nm, 930 nm, dose 24 mJ/m²) leads to...
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Alternation of physiological states during the annual cycle (pre-spawning mobilization, spawning energy loss, post-spawning accumulation of energy reserve, declined metabolic activity during the wintering) occurring in the wide temperature range requires high plasticity of fish defense systems. The article presents a 2-year study of hepatic antioxi...
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The results of a study on the parameters of reproductive capacity in roach from the Sheksna and the Volga reaches of the Rybinsk Reservoir are presented. The Volga reach is relatively clean, while the Sheksna reach is subject to the strongest anthropogenic load. In 2011, the average values of the absolute and relative fecundity, as well as the egg...
Article
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In the bivalve freshwater mollusks D. polymorpha from the contaminated Sheksna Ridge and relatively pure Volga Ridge of the Rybinsk reservoir, the parameters of the antioxidant protection system were studied: activity of catalase, glutathione reductase (GR), glutathione-S-transferase (GST); the level of low-molecular antioxidant-reduced glutathione...
Article
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Biomarkers of oxidative stress such as catalase (CAT), glutathione S-transferase (GST), glutathione reductase (GR) activity, and malondialdehyde and reduced glutathione content, as well as heavy metal concentrations (HM: Pb, V, Cr, Mn, Co, Ni, Cu, Zn, and Cd), were studied in Dreissena polymorpha tissues. Mussels were collected on three sites locat...
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В летний сезон года изучен критический термический максимум (КТМ) у молоди речного окуня и карпа. Диапазон скоростей нагрева составил от 0,08 до 46 °С/ч. Значения КТМ у двухлетков карпа при всех скоростях нагрева были выше, чем у двухлетков окуня, а максимальные значения температуры переворота и потери координации движения отмечены у карпа при само...
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The critical thermal maximum (СTM) for the young of river perch and common carp were investigated. The range of heating rates was 0.08 to 46 °C/h. The CTM values for carp yearlings at all heating rates were higher than those for perch. The maximum temperature for the loss of righting response and loss of coordination were observed in the carp at th...
Article
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Peculiarities of the antioxidant defense system (ADS) in the soft tissues of the freshwater bivalves Dreissena polymorpha and D. bugensis from the Volga Reach of the Rybinsk reservoir were studied. The activities of several antioxidant enzymes such as catalase (CAT), superoxide dismutase (SOD), glutathione S-transferase (GST), glutathione reductase...
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The separate and combined in vitro effects of heavy metal ions (Cu and Zn) at concentrations of 0.1-25 mg/L on the activities of maltase, sucrase, and amylolytic activity in the intestines of bream and roach caught in areas of the Rybinsk Reservoir differing in anthropogenic loads have been studied. In fish from the polluted Sheksninskii Reach, mem...
Article
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The chronic effects of cadmium, naphthalene, and DDVP on the growth of Mozambique tilapia (Oreochromis mossambicus Peters) exposed to concentrations corresponding to 1/30 LC50 for 24 h (cadmium and DDVP) and 1/15 LC50 for 24 h (naphthalene) have been studied. The fish are kept in toxicant solutions for 60 days and then for 60 more days in clean wat...
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Hepatic ethoxyresorufin-O-deethylase (EROD) activity in fish is known to be a biomarker of exposure to planar halogenated and polycyclic aromatic hydrocarbons. EROD activity was measured in bream (Abramis brama) from the Rybinsk Reservoir (RR). The RR (58°22' N, 38°25' E) is located in the European part of Russia and belongs to the Volga Cascade of...
Article
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The breams living in five regions of the Rybinsk Reservoir with different degrees of anthropogenic load have been assayed for the characteristics of their antioxidant system (AOS) and lipid peroxidation (LPO) system. Individuals caught at two stations in the Rybinsk Reservoir that maximally differ in the degree of pollution display different qualit...
Article
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The toxicity of bottom sediments (BSs) from different parts of the Rybinsk Reservoir has been determined by biotesting. Neither acute nor chronic toxicity are detected for ceriodaphnia Ceriodaphnia affinis Lillijeborg in tests with water extracts of sediments from all the investigated stations. The relative number of Chironomus riparius Meigen larv...
Article
The substrate-inhibitory analysis has shown that single “atypical” cholinesterase (ChE) presents in tissues of freshwater oligochaete Lumbriculus variegatus (O.F. Műller). This enzyme differs both from “typical” acetylcholinesterase (AChE) and butyrylcholinesterase (BuChE). Specific activity of oligochaete ChE ranges 55–100 μmol ATCh g−1 tissue min...
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The chronic effects that polychlorinated biphenyls (PCBs) have on the activities of proteinases and carbohydrates in intestinal mucosa and chyme in juvenile roach Rutilus rutilus (L.) have been studied for the first time. Upon consuming food with PCB 50.8 ng/g wet weight for 218 days, the exposition of fingerlings in aquariums with dirt bottoms (co...
Article
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Persistent organic pollutants (POPs) were found in bottom sediments and muscles of a freshwater fish, bream (Abramis brama L.), from the Rybinsk Reservoir. The contents of POPs decreased in the following order: PCBs > DDT > HCH > HCB. The POPs contents vary within the ranges of 0.14–50.8, 1.8–6.8, 0.64–2.6, and 0.06–0.41 \gmg/kg wet weight for fish...
Article
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The Rybinsk Reservoir (Russia) is the largest artificial waterbody in Europe (4550 km2) and provides drinking water for population of the cities located along the coast line. Industrialization in Cherepovets at the northeastern portion of the reservoir, including one of the largest metallurgical facilities in Europe, has resulted in chemical contam...
Article
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Long period there was opinion that tissues of freshwater teleosts contain solely acetylcholinesterase (AChE; EC 3.1.1.7), while butyrylcholinesterase (BuChE; EC 3.1.1.8) is present in traces. Our investigations during last two decades change the view.
Article
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Brain and plasma acetylcholinesterase (AChE; EC 3.1.1.7) and plasma butyrylcholinesterase (BChE; EC 3.1.1.8) specific activities were assayed in 16 freshwater teleosts belonging to four families: Cyprinidae, Percidae, Esocidae and Lotidae. Brain AChE activity varied among fish species approximately 15-fold, ranging from 138 to 2011 micromol/g per h...
Article
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A comparative study is carried out on dependence of degree of activity inhibition of acetylcholinesterase (AChE) and butyrylcholinesterase (BChE) of a freshwater bony fish, the roach Rutilus rutilus L., on concentration of organophosphates: O,O-dimethyl-O-(2,2-dichlorovynyl)phosphate (DDVP) and tetraisopropylamidopyrophosphate (iso-OMPA). It has be...
Article
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A comparative study of specific activities and in vitro inhibition of brain and serum acetylcholinesterase (AChE; EC 3.1.1.7) and serum butyrylcholinesterase (BChE; EC 3.1.1.8) by DDVP, an organophosphorus pesticide, was conducted in 11 freshwater teleost species belonging to four families (Cyprinidae; common carp Cyprinus carpio, bream Abramis bra...
Article
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In vitro effects of cadmium (0.5-50 mg/l) and DDVP (0.2-100 mg/l) on the total amylolytic, sucrase and protease activities of intestinal mucosa have been studied for the first time in 11 freshwater teleosts. Total amylolytic activity in burbot, crucian carp and common carp, sucrase activity in blue bream and total proteolytic activity in burbot and...
Article
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Seasonal fluctuations in brain acetylcholinesterase (AChE) activity and soluble protein (SP) content were studied over a 6-year period in roach (Rutilus rutilus L.) from Rybinsk Reservoir in Russia. There was a significant positive linear correlation between AChE activity and SP content in roach brain for all years (r = 0.49–0.95, p < 0.001). No co...
Article
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Polycyclic aromatic hydrocarbons (PAH) were measured in bottom sediments from Rybinsk Reservoir, Russia, and livers of bream (Abramis brama). Sediments were heavily contaminated by a variety of PAH compounds in Sheksninsky Bay adjacent to the industrial centre at Tcherepovets. Differences in spatial distribution of high and low molecular weight PAH...
Article
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Intraperitoneal injection of adrenaline induced characteristic S-shape responses of acetylcholinesterase activity and protein content in the brain of perch (Perca fluviatilis L.). The pattern of blood glucose dynamic demonstrated that a defined dose of adrenaline caused the development of a typical stress response in fish.
Article
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Previous research has shown that sublethal concentrations of cadmium, naphthalene and dichlorvos (DDVP) decreased growth rates in bream and Mozambique tilapia. One of the factors known to affect fish growth is the activity of gut digestive enzymes such as of lipases, proteases, carbohydrases. We assumed that toxicant-induced inhibition of the diges...
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The effect of a long-term (2 months) exposure to cadmium (5 mg/l), with a subsequent recovery in clean water, upon gill structural organization of Mozambique tilapia was studied using scanning and light microscopy. Some of nonspecific components of the gill response on cadmium action were revealed: hypertrophy and fusion of respiratory lamellae, sw...
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Cholinesterases (ChE) were discovered in 1906 (Hunt and Taveaux 1906). In 1943, a hypothesis was advanced that two types of enzymes exist, referred to as “true cholinesterases” and “pseudocholinesterases.” According to the latest nomenclature, they correspond to two groups: acetylcholinesterase-acetylcholine-acetylhydrolase [EC 3.1.1.7, acetylcholi...
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The mutagenic activity of organophosphate DDVP, heavy metal and polyaromatic hydrocarbon naphtalene was studied. During the chronic experiment the concentrations of about 1/15 LC50 were analysed using micronuclei evaluations in the tilapian erythrocytes. The study revealed a pronounced mutagenic effect of DDVP and cadmium. Naphtalene had no mutagen...
Article
1. Bream (Abramis brama) were exposed to sublethal concentration of organophosphorus insecticide DDVP and the amount of food consumed and brain acetylcholinesterase (AChE) examined in exposed fish. 2. Exposure to DDVP resulted in decreased amount of food consumed and inhibited brain AChE activity. 3. Intraperitoneal injection of the fish with choli...
Article
Full-text available
One of the priority groups of aquatic pollutants are polychlorinated biphenyls (PCBs). They can accumulate in fish tissues, staying there for a long time and affecting the most important physiological and biochemical processes in organism. Antioxidant system (AOS) protects cells against adverse action of reactive oxygen species (ROS). Parameters of...

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