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EFFECTS OF HYPOMAGNETIC FIELD AND INCREASED WATER TEMPERATURE ON THE PRODUCTION AND MORPHOMETRIC PARAMETERS in Daphnia magna Straus
1 Papanin Institute for Biology of Inland Waters, Russian Academy of Sciences
2 Scientific and Technological Center of Unique Instrumentation, Russian Academy of Sciences
3 Cherepovets State University
Journal: Geophysical processes and biosphere
Tome: 22
Number: 4
Year: 2023
Pages: 36-42
UDK: 595.324.2
DOI: 10.21455/GPB2023.4-4
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Sizova
D.А А.А. EFFECTS OF HYPOMAGNETIC FIELD AND INCREASED WATER TEMPERATURE ON THE PRODUCTION AND MORPHOMETRIC PARAMETERS in Daphnia magna Straus
// . 2023. Т. 22. № 4. С. 36-42. DOI: 10.21455/GPB2023.4-4
@article{Sizova
D.АEFFECTS2023,
author = "Sizova
D.А, А. А.",
title = "EFFECTS OF HYPOMAGNETIC FIELD AND INCREASED WATER TEMPERATURE ON THE PRODUCTION AND MORPHOMETRIC PARAMETERS in Daphnia magna Straus
",
journal = "Geophysical processes and biosphere",
year = 2023,
volume = "22",
number = "4",
pages = "36-42",
doi = "10.21455/GPB2023.4-4",
language = "English"
}
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Keywords: Daphnia magna, hypomagnetic field, geomagnetic field, temperature, global climatic changes.
Аnnotation: The combined and separate effects of water temperature increase (27 °C) and hypomagnetic field on the freshwater crustaceans Daphnia magna were studied. Crustaceans developed under a hypomagnetic field had increased body length compared to the control. Increased water temperature led to a reduction in the size of newborns, a decrease in the number of newborns in the first brood, an accelerated release of the first brood, a decrease in the period between broods, and an increased number of broods within 30 days. Hypomagnetic field could be viewed as an additional stress factor, lead-ing to a decrease in the average number of offspring produced at the optimal temperature of 22 °C, as well as a reduction in the number of females that produced the maximum number of broods at both optimal and elevated temperatures during the experiment. The results suggest that environmental changes due to global climatic and geophysical processes significantly affect representatives of freshwater ecosystems.
