title: [Effect of an altered magnetic field on the development of great ramshorn Planorbarius corneus (Gastropoda, Planorbidae)].
abstract: Effects of a 100-300-fold attenuated geomagnetic field on the embryonic development of great ramshorn Planorbarius corneus and water oxidation-reduction properties were studied in a hypomagnetic chamber. The hypomagnetic field was largely favorable to the P. corneus development. Specifically, teratogenic effects were less massive, i.e. embryos that had known no other environment but hypomagnetism were characterized by low death rate. The agility index grew in embryos on the stages of late veliger and post-metamorphosis. A sharp increase of the magnetic field to the normal strength resulted in rapid death of embryos and juvenile mollusks (virtually, their growth was arrested). Type of induction was dependent on adaptation of juvenile P. corneus to a magnetic field. Mollusks grown in the normal geomagnetic field would prefer the conditions with maximal induction, whereas mollusks developed in the hypomagnetic chamber, on the contrary, chose the conditions with minimal induction. The oxidation-reduction potential of water increased as magnetic induction attenuated pointing to a natural decline in internal energy of water molecules due, as we see it, to inhibition of the mollusk embryonic development.
authors.forename: V V
authors.initials: VV
authors.lastname: Tsetlin
authors.forename: A A
authors.initials: AA
authors.lastname: Zotin
authors.forename: S S
authors.initials: SS
authors.lastname: Moĭsa
mesh_terms: D000818:Animals; D004625:Embryo, Nonmammalian; D047108:Embryonic Development / Q000502:physiology*; D049851:Gastropoda / Q000196:embryology*; D060526:Magnetic Fields; D010084:Oxidation-Reduction; D011835:Radiation Protection; D014867:Water / Q000737:chemistry
chemical_list: D014867:Water