Parental behavior and some histological features of scales in Cichlasoma citrinellum (Pisces, Cichlidae)

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Abstract
Young Cichlasoma citrinellum contact parents preferentially, depending on sex and color of the parents. The number of epidermal mucus cells on adults' scales is positively correlated with the amount of contacting by the young. The epidermal thickness of these scales is negatively correlated with the amount of contacting. These correlations are discussed as possible cause–effect relationships with the contacting preferences of the young, and are compared to similar behavior in other cichlid fish species.

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