Abnormal Coloration in Fish

Achieving Natural Coloration in Fish under Culture

Fish that are colored in nature often acquire faded coloration under intensive culture conditions. Experiments adding top-coated algae to the diets of ornamental fish have resulted in color enhancement. Freshwater red velvet swordtails Xiphophorus helleri, rainbowfish Pseudomugil furcatus, and topaz cichlids Cichlasoma myrnae became significantly more intensely colored when fed a diet containin...

Beyan, Fisher: Detection of Abnormal Fish Trajectories

We address the analysis of fish trajectories in unconstrained underwater videos to help marine biologist to detect new/rare fish behaviours and to detect environmental changes which can be observed from the abnormal behaviour of fish. The fish trajectories are separated into normal and abnormal classes which indicate the common behaviour of fish and the behaviours that are rare/ unusual respect...

One Fish, Two Fish, Red Fish, Blue Fish: Geography, Ecology, Sympatry, and Male Coloration in the Lake Malawi Cichlid Genus Labeotropheus (Perciformes: Cichlidae)

While sexual selection on male coloration has been important in haplochromine cichlid speciation, few studies to date have examined potential environmental influences on color pattern evolution. Data from multiple sources on male nuptial coloration of the Lake Malawi endemic genus Labeotropheus were used to examine the relationship between color patterns and the environments in which these patt...

Abnormal iris coloration in the Campo Flicker, Colaptes campestris: pigmentary color production error?

Individual variation in male mating preferences for female coloration in a polymorphic cichlid fish

Michele E.R. Pierotti, Mairi E. Knight, Simone Immler, Nicola J. Barson, George F. Turner, and Ole Seehausen MolecularEcologyandEvolutionGroup,DepartmentofBiological Sciences,University ofHull, Cottingham Road, Hull HU6 7RX, UK, Aquatic Ecology and Macroevolution, Institute of Zoology, University of Bern, Baltzerstrasse 6, CH-3012 Bern, Switzerland, EAWAG Center for Ecology, Evolution and Bioge...