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Article
Spine Anomalies and Vertebral Phenotypes in the Underyearlings of Roach Rutilus rutilus (Cyprinidae) after Separate and Combined Exposure to a Magnetic Field and Metrifonate on Embryos
Anomalies in the spine structure and vertebral phenotypes were studied in 4-month-old underyearlings of the roach Rutilus rutilus (Linnaeus, 1758) after combined or separate exposure of embryos to a magnetic fiel...
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Article
The effect of a temporal shift in diurnal geomagnetic variation on roach Rutilus rutilus L. embryos: A comparison with effects of simulated geomagnetic storms
A study was made of the effects that 6- and 12-h shifts in diurnal geomagnetic variation relative to the night–day light cycles exert on roach Ritulus ritulus L. embryos. Either temporal shift in diurnal geomagne...
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Article
The impact of hypomagnetic conditions and light deprivation on mitosis of germ cells and body length of prelarvae in roach (Rutilus rutilus L.)
The impact of light deprivation, geomagnetic deprivation, and the combination of these factors on the mitosis of germ cells in roach embryos and the body length of hatched prelarvae have been studied. It has b...
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Article
Blastomere mitosis, hatching, survival rate, and size parameters of prolarvae in the roach Rutilus rutilus following exposure of eggs and sperm to main phase of a strong magnetic storm
Eggs and sperm obtained from breeder roaches Rutilus rutilus were exposed, prior to activation with water, for 25 minutes to the main phase of a strong magnetic storm. Such exposure increased the proportion of st...
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Article
Response of animal and vegetative cells to the effect of a typical magnetic storm
Experimentally reproduced fluctuations of a low-frequency magnetic field in a nanotesla range (magnetic storm) affect the mitosis of animals and vegetative cells. Action of this factor during twenty four hours...
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Article
The effect of a typical magnetic storm on mitosis in the embryo cells and the length and weight of roach (Rutilus rutilus L.) prolarvae
The action of the tested variants of a typical magnetic storm (MS) has a biological effect on cellular and organismal levels in the prolarva stage. The impact of this environmental factor leads to increased mi...
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Article
Some morphological features of roach Rutilus rutilus (Cyprindae) fry after exposure to toxicants in the early stages of ontogenesis (vertebral phenotypes, plastic features, and fluctuating assymetry)
Roach Rutilus rutilus eggs developed in low-concentration solutions of trichlorfon (10−6, 10−5, 10−4, 10−3, and 10−2 mg/l) or N-methyl-N’-nitro-N-nitrosoguanidin (MNNG) with 0.3 mg/l concentration for 54 h after ...
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Article
Variability in development of bilateral parts of the brain during ontogenesis of roach (Rutilus rutilus)
A study exploiting the gravimetric method did not reveal identical development of paired parts of the roach (Rutilus rutilus) brain. In the studied sample, the proportion of fish with left or right asymmetry of t...
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Article
Effect of ultralow concentrations of N-methyl-N′-nitro-N-nitrosoguanidine upon early development in roach (Rutilis rutilus): Intestine carbohydrase activities and kinetic characteristics of carbohydrate hydrolysis in the intestine of underyearlings
The prolonged effects of short-term action of N-methyl-N′-nitro-N-nitrosoguanidine (MNNG) in low concentrations 3 × 10−7 to 3 × 10−1 mg/l upon roach (Rutilus rutilus) early development have been studied. It was r...
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Article
Effect of N-methyl-N-nitro-N-nitrosoguanidine upon early development in roach (Rutilus rutilus): Characteristics of mitoses in germ cells, hatching dynamics and morphology of larvae
Fertilized roach (Rutilus rutilus) eggs were incubated for the first 48 h in 3 × 10−7 to 3 × 10−1 mg/l N-methyl-N-nitro-N-nitrosoguanidine (MNNG) solutions. The incubation resulted in changes in blastomere mitoti...
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Article
On the impact of low concentrations of chlorophos in the period of early ontogenesis on digestive carbohydrases of underyearlings of roach Rutilus rutilus
The remote effects of brief exposure to low doses of chlorophos (1 × 10−6 −1 × 10−2 mg/l) in the period of early ontogenesis of roach Rutilus rutilus have been studied. Diverse changes of the activity of carbohyd...
