Induction of Puberty in Red Spotted Grouper, Epinephelus akaara By Water Temperature

Gonadosomatic index grouper dating

Such environmental factors stimulate the receptors in each organ and are summed up in the brain that lead to the activation of B-P-G axis. The procedure was repeated twice for each sample, and B-actin was used for the relative quantification, from which the average experimental values were obtained and subsequently used. The red spotted grouper Epinephelus akaara is found in China, Korea and southern Japan. Thus, this study, we induced puberty of red spotted grouper that require a long period of time to reach puberty, by controlling the rearing water temperature.

The water temperature was controlled

Fish name, body weight, body length

The photoperiod during this timeThe experimental duration lasted approx

The photoperiod during this time was treated as equivalent to the period of natural light. The water temperature was controlled using a heat pump. The experimental duration lasted approx. Most grouper species inhabit subtropical and tropical regions.