Delayed consequences of the influence of simulated geomagnetic storms on roach <i>Rutilus rutilus</i> embryos

Крылов, В. В.; Chebotareva, Yulia V.; Izyumov, Yuri G.

doi:10.1111/jfb.14150

Cited by 5 publications

(1 citation statement)

References 33 publications

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“…Наибольшее промысловое значение в России имеют вобла, тарань и сибирская плотва. Молодь плотвы проявляет высокую чувствительность к действию ряда природных и антропогенных факторов и часто используется в различных экспериментах [Голованов, 2013[Голованов, (Golovanov, 2013; Krylov et al, 2019] чень…, 1999чень…, (Perechen'…, 1999]. Воду и раствор меди в аквариумах (на 80% от начального объема) меняли 2 раза в неделю без отсадки рыб.…”

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Effects of Sublethal Concentrations of Copper and Thermal Stress on Physiological and Biochemical Parameters of Juvenile Roach Rutilius Rutilius (L.)

Golovanova¹,

Filippov²,

Kulivatskaya³

et al. 2022

Transactions of Papanin Institute for Biology of Inland Waters RAS

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The effects of 7- and 14-day exposure to water-dissolved Cu at sublethal concentrations 0.01 and 0.1 mg/L and subsequent increase in water temperature at a rate of 8°C/h on intestinal proteolytic activity (PA) and amylolytic activity (AA), as well as brain acetylcholinesterase (AChE) activity and water-soluble protein (WSP) content in juvenile roach Rutilus rutilus have been in vivo studied. Additionally, the values of upper sublethal temperature were determined by the critical thermal maximum (CTM) method. The average values of the CTM (27.5°C) did not differ in fish of control (exposure to 0 μg/L Cu) and Cu-exposed groups. After Cu exposure AA was 22–34% lower, PA was 57–64% lower at Cu concentration 0.01 mg/L, but 27–35% higher at Cu concentration 0.1 mg/L. Subsequent temperature stress did not change the response of proteinases and glycosidases to Cu. An increase in water temperature decreased AA by 21%, AChE activity by 24% in fish of the control group; but increased PA by 32%. AChE activity was 24–28% lower than the control after exposure to Cu (0.1 mg/L and short-term thermal load increased the inhibitory effect of Cu. An increase of WSP content by 36–58% was revealed only after 7 days of exposure to Cu, while temperature stress did not change of the effect. In general, Cu at concentrations found in the aquatic environment can reduce the activity of digestive hydrolases in the intestines of juvenile roach, reducing the rate of assimilation of protein and carbohydrate food components. Inhibition of brain AChE activity is enhanced by subsequent temperature stress. No significant differences were noticed in CTM values in fish of control and Cu-exposed group. The results obtained are important in assessing the environmental risks of chronic exposure to Cu in the zones of thermal pollution of water bodies.

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Effects of Sublethal Concentrations of Copper and Thermal Stress on Physiological and Biochemical Parameters of Juvenile Roach Rutilius Rutilius (L.)

Golovanova¹,

Filippov²,

Kulivatskaya³

et al. 2022

Transactions of Papanin Institute for Biology of Inland Waters RAS

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Delayed consequences of the influence of hypomagnetic field on roach (

Крылов

Chebotareva

Izyumov

2021

Mar. Freshwater Res.

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The absence of magnetic fields can affect fish embryogenesis. The influence of hypomagnetic field on the survival of roach (Rutilus rutilus) embryos was estimated. Delayed consequences of R. rutilus embryos and prelarvae exposure to these magnetic conditions were also studied. Hypomagnetic field during embryogenesis led to an increased mortality of embryos. The juveniles developed from the exposed embryos were characterised by reduced vertebral phenotypic diversity. The influence of hypomagnetic field on roach prelarvae led to changes in the size–mass indices of juvenile fish. Present results differ from those that were previously obtained in experiments with simulated geomagnetic storms and artificial low-frequency magnetic fields and emphasise the importance of the magnetic environment for the fish embryogenesis. Possible mechanisms of the described effects are discussed.

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Remote Consequences of the Influence of Slow Magnetic Field Fluctuations on the Embryos of Roach Rutilus rutilus (Cyprinidae)

2021

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Delayed consequences of the influence of simulated geomagnetic storms on roach Rutilus rutilus embryos

Cited by 5 publications

References 33 publications

Effects of Sublethal Concentrations of Copper and Thermal Stress on Physiological and Biochemical Parameters of Juvenile Roach Rutilius Rutilius (L.)

Effects of Sublethal Concentrations of Copper and Thermal Stress on Physiological and Biochemical Parameters of Juvenile Roach Rutilius Rutilius (L.)

Delayed consequences of the influence of hypomagnetic field on roach (

Remote Consequences of the Influence of Slow Magnetic Field Fluctuations on the Embryos of Roach Rutilus rutilus (Cyprinidae)

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