Published in Scientific Papers. Series D. Animal Science, Vol. LXVII, Issue 2
Written by Barbara TOMBARKIEWICZ, Bartosz BOJARSKI, Leszek SZAłA, Mateusz JAKUBIAK, Krzysztof PAWLAK
Changes in the electromagnetic environment and increasing pollution of the environment are significant threats to animals including fish. In this study we made an attempt of determining some effects of geomagnetic field disturbances (hypogeomagnetic conditions), 1800 MHz electromagnetic field, and a commonly used herbicide (Roundup - the concentrations applied in the experiment corresponded to 0.1; 0.5 or 5 mg/l of the active ingredient) on common carp (Cyprinus carpio) embryonic development and hatching. In the periods of 24 and 48 hours after the start of incubation and then in every 6 hours till the end of the experiment the percentage of dead eggs, the percentage of hatched larvae, and the percentage of deformed larvae were determined. The research conducted showed that the deprivation of the geomagnetic field accelerated the hatching of larvae; a reduction in hatchability was also observed, while exposure to the electromagnetic field resulted in an increase in the percentage of finally hatched larvae (statistically insignificant changes). Roundup exposure resulted in increased mortality, reduced hatchability, and an increased percentage of deformed larvae (statistically significant changes).
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