Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Osmoregulation in Fishes

Osmoregulation in Fishes

When cells are placed in a hypotonic (low-salt) fluid, they can swell and burst. Meanwhile, cells in a hypertonic solution—with a higher salt concentration—can shrivel and die. How do fish cells avoid these gruesome fates in hypotonic freshwater or hypertonic seawater environments?

Color Vision

Color Vision

Color perception begins in the retina, the light-sensitive layer at the back of the eye. Two main theories explain how colors are seen: the trichromatic theory and the opponent-process theory. The trichromatic theory, proposed by Thomas Young in 1802 and extended by Hermann von Helmholtz in 1852, suggests that color vision is based on three types of cone receptors in the retina. These cones are sensitive to different but overlapping ranges of wavelengths corresponding to red, blue, and green.

Testing a Claim about Population Proportion

Testing a Claim about Population Proportion

A complete procedure for testing a claim about a population proportion is provided here.
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...

Difference from Background: Limit of Detection

Difference from Background: Limit of Detection

The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...

Channel Rhodopsins

Channel Rhodopsins

Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...

You might also read

Related Articles

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

Sort by

Same author

Correction to 'Underwater caustics disrupt prey detection by a reef fish'.

Proceedings. Biological sciences·2020

Same author

Underwater caustics disrupt prey detection by a reef fish.

Proceedings. Biological sciences·2020

Same author

Detection of Fruit and the Selection of Primate Visual Pigments for Color Vision.

The American naturalist·2018

Same author

Red fluorescence of the triplefin <i>Tripterygion delaisi</i> is increasingly visible against background light with increasing depth.

Royal Society open science·2017

Same author

Why UV vision and red vision are important for damselfish (Pomacentridae): structural and expression variation in opsin genes.

Molecular ecology·2016

Same author

DIMENSIONS OF PRIVACY PREFERENCES.

Multivariate behavioral research·2016

Search research articles

Related Experiment Video

Updated: Mar 14, 2026

EasyFiji: A Graphical Interface for User-Friendly Fluorescence Image Processing in Fiji

EasyFiji: A Graphical Interface for User-Friendly Fluorescence Image Processing in Fiji

Published on: February 20, 2026

Colour thresholds in a coral reef fish.

C M Champ¹, M Vorobyev², N J Marshall¹

¹Queensland Brain Institute , The University of Queensland , Brisbane , Australia.

Royal Society Open Science

|October 6, 2016

Summary

Understanding fish color vision is key to reef communication. This study measured triggerfish

Keywords:

colour vision coral reefs visual thresholds

More Related Videos

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals

Published on: September 5, 2014

Assays to Detect UV-reflecting Structures and Determine their Importance in Mate Preference using the Sailfin Molly Poecilia latipinna

Assays to Detect UV-reflecting Structures and Determine their Importance in Mate Preference using the Sailfin Molly Poecilia latipinna

Published on: September 14, 2016

Related Experiment Videos

Last Updated: Mar 14, 2026

EasyFiji: A Graphical Interface for User-Friendly Fluorescence Image Processing in Fiji

EasyFiji: A Graphical Interface for User-Friendly Fluorescence Image Processing in Fiji

Published on: February 20, 2026

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals

Multimodal Optical Microscopy Methods Reveal Polyp Tissue Morphology and Structure in Caribbean Reef Building Corals

Published on: September 5, 2014

Assays to Detect UV-reflecting Structures and Determine their Importance in Mate Preference using the Sailfin Molly Poecilia latipinna

Assays to Detect UV-reflecting Structures and Determine their Importance in Mate Preference using the Sailfin Molly Poecilia latipinna

Published on: September 14, 2016

Area of Science:

Marine Biology
Animal Vision
Sensory Ecology

Background:

Coral reef fish exhibit vibrant coloration, likely balancing camouflage and communication.
Human visual perception differs significantly from that of fish, necessitating a fish-centric approach to understanding reef coloration.

Purpose of the Study:

To determine the color vision capabilities of the coral reef triggerfish (Rhinecanthus aculeatus).
To establish behavioral color discrimination thresholds in a coral reef fish species.
To provide a framework for predicting color discrimination in reef fish and other animals.

Main Methods:

Behavioral experiments trained triggerfish to distinguish between reward and non-reward color stimuli.
Color discrimination thresholds were measured using a series of non-rewarding color stimuli.
Results were compared with predictions from the receptor noise-limited visual model and eye anatomy.

Main Results:

The study successfully determined the behavioral color discrimination thresholds for Rhinecanthus aculeatus.
Measured thresholds closely matched predictions derived from the receptor noise-limited visual model.
This marks the first demonstration of behavioral color discrimination thresholds in a coral reef fish.

Conclusions:

The findings validate the use of the receptor noise-limited visual model for predicting fish color vision.
Understanding fish color perception is crucial for interpreting reef fish communication and speciation.
The methodology allows for the prediction of color discrimination abilities across diverse animal species.