24 Result(s)
within
I. L. Golovanova
Freshwater & Marine Ecology
Geoecology/Natural Processes
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Article
Long-Term Consequences of the Effect of Copper and an Electromagnetic Field on the Size and Weight Parameters and Activity of Digestive Glycosidases in Underyearlings of Roach Rutilus rutilus
The long-term (postponed) consequences of the separate and combined effects of Cu2+ ions (0.001, 0.01, and 0.1 mg/L) and a low-frequency electromagnetic field (50 Hz, 10 μT) on roach Rutilus rutilus (L.) embryos ...
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Article
Unusual Thermoregulatory Behavior of Anadromous and Resident Larvae of the River Lamprey Lampetra fluviatilis (Petromyzontidae)
The results of studying the thermal tolerance and thermoregulatory behavior of the river lamprey larvae Lampetra fluviatilis (L.) have been reported. The upper lethal temperatures, recorded at a waterheating rate...
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Article
Preferred Temperature and Thermal Resistance of the Lake Minnow Rhynchocypris Percnurus (Pallas, 1814)
The thermoadaptive characteristics of the lake minnow Rhynchocypris percnurus (Pallas, 1814) have been obtained for the first time in experimental conditions. The final preferred temperature in adult fish previou...
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Article
Effect of Roundup on the Activities of Glycosidase in the Intestines of Typical and Facultative Ichthyophages as a Function of Temperature and pH
In vitro studies of the effect of the herbicide Roundup (25 µg/L) on the activity of glycosidases that hydrolyze starch in the intestinal mucosa and chyme of typical (pike Esox lucius L., zander Sander lucioperca
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Article
Short-Term Starvation Changes the Sensitivity of Intestinal Glycosidases of Juvenile Common Carp Cyprinus carpio L. to an Increase in the Water Temperature
The activity of glycosidases (maltase activity and amylolytic activity) in the intestinal mucosa of juvenile common carp Cyprinus carpio (L.) under a sharp increase in water temperature depends on its physiologic...
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Article
Effects of Roundup Herbicide at Low Concentration and of Thermal Stress on Physiological and Biochemical Parameters in Amur Sleeper Perccottus glenii Dybowski Juveniles
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) a...
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Article
Physiological–Biochemical Status of Fish under the Effect of Glyphosate-Containing Herbicides (Review)
A brief review of the effects of glyphosate-based herbicides on the morphological and physiological–biochemical parameters of fish is presented. The dependence of the effect on the fish species, age and ecolog...
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Article
Effect of Roundup Herbicide on the Temperature Characteristics of Maltase of the Intestinal Mucosa in Juvenile Fish
The in vitro effect of Roundup herbicide at a concentration of 25 μg/L on the activity and temperature characteristics (temperature dependence, activation energy Eact, and Q10 temperature coefficient) of maltase ...
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Article
Sensitivity of Digestive Glycosidases to Heavy Metals in Roach Rutilus rutilus (L.) Yearlings: The Consequences of Hypogeomagnetic Conditions During Early Ontogenesis
The effect of exposure to hypogeomagnetic conditions (HMCs) during roach Rutilus rutilus (L.) early development (embryos and prelarvae) on the activity of digestive glycosidase (maltase and amylolytic activity) a...
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Article
Effects of Roundup Herbicide and Increase in Water Temperature on the Parameters of Peripheral Blood Cells in Amur Sleeper Perccottus glenii Dybowski
The separate and combined effects of chronic 30-day exposure to the herbicide Roundup in a sublethal concentration of 2 μg/L and an increase in water temperature at a rate of 8°C/h on the parameters of red and...
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Article
Effect of triiodothyronine on the activity and sensitivity of glycosidases to heavy metals (Cu, Zn, and Pb) in juvenile blue bream Ballerus ballerus (L.)
The influence of exogenous triiodothyronine (0.25 ng/mL) on the activity glycosidases (maltase, amylolytic activity) and their sensitivity to Cu, Zn and Pb ions (25 mg/L) has been studied in the whole organism...
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Article
Effect of magnetic storm on the sensitivity of juvenile roach intestinal glycosidase to heavy metals (Cu, Zn) and the herbicide roundup
The effect of a magnetic storm (frequency range of 0–5 Hz) on the activity and sensitivity of underyearling intestinal glycosidase (maltase and amylolytic activity) to heavy metal ions (Cu2+ and Zn2+, concentrati...
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Article
Effects of heavy metals (Cu and Zn) on digestive glycosidases in benthivorous fish of areas of Rybinsk Reservoir differing in anthropogenic loads
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 c...
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Article
Effect of the herbicide Roundup on the activity of Glycosidases of invertebrates and juvenile fish
The effects of in vitro exposure to the herbicide Roundup at concentrations of 0.1–50 μg/L on the activity of maltase and sucrase and the total amylolytic activity in the organism of invertebrates and fish fry...
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Article
Effects of organic pollutants on fish digestive enzymes: A review
A brief overview of data on the effects of organic pollutants of different chemical natures (organochlorine, organophosphorous and organotin compounds, naphthalene, formalin, nitrosoguanidine, glyphosate, and ...
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Article
The effect of organic toxicants on sensitivity of intestinal glycosidases to Cu and Zn in juvenile roach
The chronic effect (duration of exposure 218 days) of polychlorinated biphenyls (PCBs) and the prolonged effect of the short-term action of chlorophos or of N-methyl-N′-nitro-N-nitrosoguanidine (MNNG) during embr...
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Article
The effect of mercury accumulation on the intestinal glycosidase activity in perch Perca fluviatilis L. from aquatic bodies of European Russia with different pH
The intestinal glycosidase activities and kinetic characteristics of carbohydrate hydrolysis change in different ways with mercury accumulation in the muscles of perch from aquatic bodies of European Russia. A...
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Article
Impact of polychlorinated biphenyls on the activity of intestinal proteinases and carbohydrases in juvenile roach Rutilus rutilus (L.)
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 fi...
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Article
Separate and joint effects of copper and zinc on the intestine carbohydrase activity in vitro in freshwater teleosts
The separate and joint effect of Cu2+ and Zn2+ of 0.1–25 mg l−1 concentrations on the intestine carbohydrase activity were studied in vitro in 11 freshwater bone fishes. The total amylolytic activity of the fish ...
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Article
Influence of biogenic metals (Cu, Zn) on the activity of carbohydrases in juvenile fish in vitro
It was revealed that intestine and whole-body amylolytic activity (AA) in juvenile fish serving as potential feeding items for piscivores significantly decreases in the presence of Cu and Zn ions within a wide...
