Sexual dimorphism of fish


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A simple technique for digital imaging of live and preserved small fish specimens. Life history strategy models in which female size depends on fecundity and male size on male-male competition, are used to predict male and female size. Sexual dimorphism and allometry of external morphology in Oreochromis mossambius. All statistical and morphometric analyses were performed in Mathematica 6 using routines programmed by Philipp Mitteroecker and Philipp Gunz. If these are the result for every migration and breeding season the expected results should be a shift towards a larger male population through sexual selection. Additionally, variation in the magnitude of sexual dimorphism may relate to population differences in the size and number of eggs stored by females, but we lack such data for our populations. Females are more typical in appearance to other fish, whereas the males are tiny rudimentary creatures with stunted digestive systems.
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Deep sexual dimorphism in adult medaka fish liver highlighted by multi-omic approach. | PubFacts


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Hybrid lineages are known, produced by gynogenesis and are nearly all-female. All anglerfish are carnivorous and are thus adapted for the capture of prey. Sexual dimorphism and reproduction evolution In human evolution:
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Sexual dimorphism of fish
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