[The magnetic susceptibility of the melanin in the eyes of representatives of different vertebrate classes].
The magnetoperceptivity (Chi) and element composition of eye pigment epitelium (EPE) melanin in vertebrate animals were measured. The minimal values of EPE Chi were found in winter-sleeping and anabiotic animals (Ursus arctos, Rana temporaria). The magnetoperception was high in migrating animals (Oncorhynchus keta, 0. gorbuscha, Anas crecca) and in wild gray rats as well, EPE magnetoperceptivity in albino rats wasn't practicaly established. In the majority of cases the quantity of magnetoperceptivity correlates with per-cent content of iron. The evident correlation between melanin magnet properties and the life strategy of the investigated animals allows to propose the participance of eye pigment epithelium in orientation and navigation of the animals.
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D000818:Animals; D000829:Animals, Domestic; D000835:Animals, Wild; D007501:Iron / Q000032:analysis; D008280:Magnetics; D008543:Melanins / Q000032:analysis / Q000502:physiology*; D010857:Pigment Epithelium of Eye / Q000737:chemistry / Q000502:physiology*; D013045:Species Specificity; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D014714:Vertebrates / Q000502:physiology*
D008543:Melanins; D007501:Iron
Magnitnaia vospriimchivost' melanina glaz u predstaviteleĭ razlichnykh klassov pozvonochnykh.