Physiological responses of female and male black-lip pearl oysters(Pinctada margaritifera)to different temperatures and concentrations of food

摘要: This study was designed to measure responses of four-year-old black-lip pearl oysters (Pinctada margaritifera )t o different temperatures and food concentrations identify the energy requirements each sex. Oysters were fed a monospecific microalgal diet Isochrysis affinis galbana (T-iso). Measurements oxy- gen consumption ingestion rates carried out at 24 ◦ C 27 two algal (T-iso) concentrations: 5000 30 000 cell ml −1 . Glycogen content in adductor muscle, absorption efficiency scope for growth also es- timated. Females males responded differently environmental factors, with level being most influential parameter. Oxygen significantly higher females than males, but had glycogen females. At high concentration, content, rate, oxygen consumption, low concentration. Only absorp- tion Ct han C. These results indicate that have bioenergetic functioning demands reproduction are