Sexual dimorphism of fish

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London, Academic Press; P Natl Acad Sci USA. Differences in sexual size dimorphism among farmed tilapia species and strains undergoing genetic improvement for body weight. Sexual dimorphism is a ubiquitous phenomenon in animal taxa. The opposite of dimorphism is monomorphism. Some specific advices are proposed: Hormonal basis of sexual dimorphism in birds:
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Males are chromatically more yellow than females. Open access for reading only. Sexual dimorphism The second pectoral fin ray in males is not enlarged as in Cobitis but there is a lateral distension of the body in front of the dorsal fin in mature males.
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