RT journal article T1 Effects of pinealectomy on the neuroendocrine reproductive system and locomotor activity in male European sea bass, Dicentrarchus labrax A1 Cowan, Mairi A1 Paullada Salmerón, José Antonio A1 López Olmeda, J. F. A1 Sánchez Vázquez, Francisco Javier A1 Muñoz Cueto, José Antonio A2 Biología K1 Sea bass K1 Pinealectomy K1 Reproduction K1 LPXRFamide K1 Kisspeptins K1 Gonadotropin-releasing hormone (GnRH) K1 Behavior K1 Fish AB This study investigated the potential roles of GnIH and Kiss2 as mediators between the pineal organ and the reproductive axis in European sea bass. The results showed that pinealectomy (Px) significantly reduced night-time plasma melatonin levels and altered gnih and kiss2 expression depending on the season. These results are demonstrating how GnIH and Kiss2 are involved in the transmission of photoperiodic signals to the reproductive axis, advancing knowledge on environmental hormonal regulation. SN 1095-6433 YR 2017 FD 2017 LK http://hdl.handle.net/10498/34584 UL http://hdl.handle.net/10498/34584 LA eng DS Repositorio Institucional de la Universidad de Cádiz RD 08-nov-2026