Effect of the administration of prolactin‐releasing peptide2 on feeding activity in the intertidal blenny Rhabdoblennius nitidus (Günther, 1861).

Prolactin‐releasing peptide2 (PrRP2) was administered intraperitoneally to male intertidal blenny Rhabdoblennius nitidus, a species with male uniparental care of eggs, to investigate the effect on their feeding activity. A significant inhibitory effect on appetite was observed in the breeding season, but not in the nonbreeding season. These results suggest that PrRP2 and PrRP2 receptors are more active during the breeding season. The presence of a mechanism to inhibit feeding activity while parents take care of their offspring may be important for the success of parental care. [ABSTRACT FROM AUTHOR]