Spectral distribution of the negative potential in the cichlid electroretinogram.
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.
D000818:Animals; D005399:Fishes; D008564:Membrane Potentials; D012160:Retina / Q000502:physiology*; D013045:Species Specificity