Rearing in different photic and spectral environments changes the optomotor response to chromatic stimuli in the cichlid fish Aequidens pulcher

Ronald Kröger, Bettina Knoblauch, Hans-Joachim Wagner

Research output: Contribution to journalArticlepeer-review

35 Citations (SciVal)

Abstract

Developmental plasticity of spectral processing in vertebrates was investigated in fish by using an innate behavior, the optomotor response. Rearing blue acara (Aequidens pulcher; Cichlidae) under white lights of different intensities as well as deprivation of long wavelengths induced significant changes in the animals' responses to chromatic stimuli. Deprivation of short wavelengths had no effect. With this and previous studies on animals reared under similar conditions, we have demonstrated that developmental plasticity in spectral processing is present at a wide range of neural levels, spanning from photoreceptors to behavior. We hypothesize that earlier studies did not reveal such effects because of the rearing and testing conditions used.
Original languageEnglish
Pages (from-to)1643-1648
JournalJournal of Experimental Biology
Volume206
Issue number10
DOIs
Publication statusPublished - 2003

Subject classification (UKÄ)

  • Zoology

Keywords

  • developmental plasticity
  • vertebrate
  • Aequidens pulcher
  • cichlid fish
  • color vision
  • spectral processing

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