Spectral sensitivity of the perch (Perca fluviatilis) from the Danube
2007
Gacic, Z., University of Belgrade, Belgrade (Serbia). Center for Multidisciplinary Studies | Bajic, A., University of Belgrade, Belgrade (Serbia). Faculty of Biology | Milosevic, M., University of Belgrade, Belgrade (Serbia). Faculty of Biology | Nikcevic, M., University of Belgrade, Belgrade (Serbia). Center for Multidisciplinary Studies | Mickovic, B., University of Belgrade, Belgrade (Serbia). Center for Multidisciplinary Studies | Damjanovic, I., Russian Academy of Sciences, Moscow (Russian Federation). Institute for Problems of Information Transmission
In spectral sensitivity studies, electroretinograms (ERG) were recorded from the in situ eyecup of immobilized perch (Perca fluviatilis) electrofished in the floodplain zone of the Danube river. It is shown that the ERG b-wave is a good indicator of spectral sensitivity, although it reflects the activity of photoreceptors indirectly. With a maximum around 542 nm, the scotopic spectral sensitivity of perch obtained using fitted amplitude-log intensity functions for threshold calculation and two models developed in our laboratory for computer-assisted fitting of spectral sensitivity curves did not differ from the sensitivity determined using the microspectrophotometric and isolated pigment methods (maximum around 541 nm).
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