Ontogenetic Color Change in the Firemouth Cichlid

Discussions on cichlid behaviour in nature & captivity.

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Bojan Dolenc
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Ontogenetic Color Change in the Firemouth Cichlid

Post by Bojan Dolenc » Tue May 25, 2010 11:52 pm

Simon C. Beeching, Rebecca E. Pike (2010) - Ontogenetic Color Change in the Firemouth Cichlid, Thorichthys meeki. Copeia: Vol. 2010, No. 2, pp. 189-195.
http://www.asihcopeiaonline.org/doi/abs ... /CG-09-132

Abstract

Color pattern changes in fishes can vary from nearly instantaneous changes to long term, developmental (ontogenetic) changes. Species-typical patterns of ontogenetic color change (OCC) can provide insight regarding the behavior, ecology, and evolution of a taxon. Observations performed on laboratory-reared Firemouth Cichlids, Thorichthys meeki, from hatching to age 205 days, revealed 16 dynamic color pattern elements. Color pattern changes were correlated with age, but a significantly better correlation was found with body size. Ontogenetic color change in the Firemouth Cichlid featured the expression of some transitory color pattern elements not found in adults, and several elements and their sequence of expression were similar to those previously described for other cichlid species.
Change in habit, producing change of function, is the main cause of the production of change in living structure. F. Wood Jones (1953) Trends of life

Bas Pels
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Location: Nijmegen - the Netherlands

Re: Ontogenetic Color Change in the Firemouth Cichlid

Post by Bas Pels » Wed May 26, 2010 2:21 am

Bojan Dolenc wrote: Color pattern changes were correlated with age, but a significantly better correlation was found with body size.
I have the idea this is more often the case: It looks like, however silly it may seem, it is better to express age in cm/inches bodylength :lol:

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