Food intake, growth, and expression of neuropeptides regulating appetite in clown anemonefish (Amphiprion ocellaris) exposed to predicted climate changes

• Clown anemonefish pomca , b agrp1 2 & mc4r-like genes compare to other teleosts. At 32 °C clown grow normally by eating more, if food is available. Higher intake correlates with increased expression of and reduced pomca. This supports orexigenic anorexigenic roles for these paralogues. The melanocortin system aids in modifying response climate change. ( Amphiprion ocellaris ) a common model species studies assessing the impact changes on tropical coral fish physiology, metabolism, growth, stress. However, basic endocrine principles control energy homeostasis, under normal elevated sea temperatures, this remain unknown. In work, we studied growth reared at different temperatures availability. We also analyzed system, which believed be involved appetite feeding behavior. These were two paralogues pomc : pomcb ; paralogs agrp agrp2 one . Groups juvenile exposed four experimental treatments combining (orthogonal design) rearing temperatures: 28 (T28; normal) (T32; high) regimes: (1 M; 08:00) or three (3 08:00, 12:00, 15:00) meals per day, fed satiety hand. results showed that high temperature (T32) did not affect average rate but induced stronger asymmetrical individual body weight within population (tank). Lower frequency M) resulted lower rates both temperatures. Fish had higher total daily intake, correlated pomca, supporting an role gene. High combined restricted levels morning meal compared control. mRNA responded differently from Levels inversely weight, indicating possible size/stage dependence gene expression. conclusion, our indicate adjusting low