Abstract
We assessed the effect of exposure of three terrestrial isopods, Armadillidium vulgare (Latreille, 1804), A. granulatum (Brandt, 1833), and Porcellio laevisLatreille, 1804, to a static magnetic field (SMF) (200 mT). Exposure altered mortality, reproduction, and behavior (volvation). Mortality rate increased significantly (P < 0.05) in the three species as compared to non-exposed individuals. Volvation changed from euspheric to mesospheric in A. vulgare, and from mesospheric to the absence of volvation in A. granulatum (P < 0.01). The size of the male copulatory organ and the female marsupium of P. laevis were significantly changed (P < 0.001) after exposure to SMF and maintained until reaching maturity.
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