Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Experiment Videos

Lighting conditions and retinal development in goldfish: absolute visual sensitivity.

M K Powers1, C J Bassi, P A Raymond

  • 1Department of Psychology, Vanderbilt University, Nashville, TN 37240.

Investigative Ophthalmology & Visual Science
|January 1, 1988
PubMed
Summary

Goldfish visual sensitivity is significantly reduced by constant light exposure and severely impaired by constant darkness. These findings highlight the importance of light cycles for maintaining normal vision in fish.

Related Concept Videos

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Enhanced Stereochemical Analysis of β‑Diastereomeric Amino Acids with Variants of Marfey's Reagent.

ACS omega·2025
Same author

Land Use, Not Stream Order, Controls N<sub>2</sub>O Concentration and Flux in the Upper Mara River Basin, Kenya.

Journal of geophysical research. Biogeosciences·2020
Same author

Collagenase Clostridium histolyticum for the pharmacological management of Peyronie's disease.

Drugs of today (Barcelona, Spain : 1998)·2015
Same author

Twelve testable hypotheses on the geobiology of weathering.

Geobiology·2011
Same author

Notch-Delta signaling is required for spatial patterning and Müller glia differentiation in the zebrafish retina.

Developmental biology·2005
Same author

Cadherin expression in the inner ear of developing zebrafish.

Gene expression patterns : GEP·2003

Area of Science:

  • * Comparative physiology
  • * Neuroscience
  • * Aquatic biology

Background:

  • * Light-dark cycles are crucial for the development and maintenance of visual systems in many species.
  • * Understanding the impact of altered light conditions on fish vision is important for aquaculture and ecological studies.

Purpose of the Study:

  • * To investigate the effects of constant light and constant dark rearing conditions on the absolute visual threshold of goldfish (Carassius auratus).
  • * To determine if spectral sensitivity at absolute threshold is affected by rearing light conditions.

Main Methods:

  • * Goldfish were reared from hatching under constant light, cyclic light, or constant dark conditions for 1-3 years.
  • * Absolute visual threshold was measured using a classically conditioned respiration suppression technique with monochromatic light flashes.

Related Experiment Videos

  • * Spectral sensitivity was assessed at the absolute threshold.

    • Main Results:

    • * Fish reared in constant light showed a decreased visual sensitivity (0.58 log units) compared to cyclic light-reared fish.
    • * Most fish reared in constant dark failed to respond to visual stimuli, preventing threshold measurement.
    • * The one fish reared in constant dark that could be conditioned exhibited a significantly reduced sensitivity (over 5 log units).
    • * Rearing conditions did not affect spectral sensitivity at absolute threshold.

    Conclusions:

    • * Constant light and, more severely, constant dark rearing impair visual sensitivity in goldfish.
    • * The observed effects of constant light on absolute threshold correlate with changes in rod density.
    • * The impact of constant dark rearing on visual sensitivity does not appear to be directly related to rod density changes.