Acta Ichthyologica et Piscatoria 27(2): 29-40, doi: 10.3750/AIP1997.27.2.03
Spatial orientation of trout (Salmo trutta L.) and rainbow trout (Oncorhynchus mykiss Walb.) embryos in natural and artificial magnetic fields
expand article infoK. Formicki, M. Bonisławska, M. Jasiński

Corresponding author: K. Formicki

© K. Formicki, M. Bonisławska, M. Jasiński.
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Citation: Formicki K, Bonisławska M, Jasiński M (1997) Spatial orientation of trout (Salmo trutta L.) and rainbow trout (Oncorhynchus mykiss Walb.) embryos in natural and artificial magnetic fields. Acta Ichthyologica et Piscatoria 27(2): 29-40. https://doi.org/10.3750/AIP1997.27.2.03
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Abstract
Trout (Salmo trutta L.) and rainbow trout (Oncorhynchus mykiss Walb.) embryos developing in eggs incubated in the geomagnetic field are oriented NW-SE. Artificial horizontal magnetic fields of 0.5 and 1.0 mT, i.e., higher than that of the natural one but of the same direction resulted in a changed alignment of the embryos examined. The embryos placed in those artificial fields were aligned N-S and NE-SW. A 90° clockwise rotation of the artificial horizontal magnetic field poles, relative to the geomagnetic one, resulted in embryos′ orientation being changed to N-S and NE-SW.