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Spectral distribution of the negative potential in the cichlid electroretinogram
Abstract:
A negative potential occurring in the ERG of certain cichlid fishes shows a unique set of properties when evoked by monochromatic light. Spectral distributions determined for Cichlasoma octofasciatum and Hemichromis bimaculatus show a blue (460-478 nm) maximum. no Purkinje shift upon light adaptation, and secondary peaks correlated with the species' behavioral preferences in reproduction and parental care.