In: General Physiology and Biophysics, vol. 28, no. 3
Milena Milošević - Željka Višnjić-Jeftić - Ilija Damjanović - Miroslav Nikčević - Pavle Andjus - Zoran Gačić
Detaily:
Rok, strany: 2009, 276 - 282
O článku:
Photoreceptor content of fish retinas could be accessed by comparative electroretinographic (ERG) studies using flickering light stimuli that could separate rod-mediated vision where critical flicker frequency (CFF, frequency when the eye loses its ability to resolve individual light pulses) is usually less than 15 Hz from cone-mediated vision. Four fish species inhabiting different photic environments (small-spotted dogfish shark – Scyliorhinus canicula, eel – Anguilla anguilla, painted comber – Serranus scriba, Prussian carp – Carassius gibelio) were investigated. Dogfish shark b-wave amplitudes significantly decreased at low frequency of stimulation and CFF was reached at 3.2 Hz. A similar effect on the b-wave amplitude was observed in the eel, but CFF occurred at around 20 Hz. Conversely, b-waves of painted comber and Prussian carp remained unaltered under intermittent low-frequency stimulation, and CFFs were around 25 and 30 Hz, respectively. Additional support in accessing the receptor content of fish retinas was given by the characterization of the OFF-response (d-wave) after light adaptation. Monotonous time course of the b-wave dark adaptation indicated a rod dominated retina of the dogfish shark. Observed results indicate that the dogfish shark possesses preponderantly rod retina, that of the eel is rod-dominated, while Prussian carp and painted comber have cone-rich retinae.
Ako citovať:
ISO 690:
Milošević, M., Višnjić-Jeftić, Ž., Damjanović, I., Nikčević, M., Andjus, P., Gačić, Z. 2009. Temporal analysis of electroretinographic responses in fishes with rod-dominated and mixed rod-cone retina. In General Physiology and Biophysics, vol. 28, no.3, pp. 276-282. 0231-5882.
APA:
Milošević, M., Višnjić-Jeftić, Ž., Damjanović, I., Nikčević, M., Andjus, P., Gačić, Z. (2009). Temporal analysis of electroretinographic responses in fishes with rod-dominated and mixed rod-cone retina. General Physiology and Biophysics, 28(3), 276-282. 0231-5882.