CAJ | 학술논문

研究了不同温度(16,19,22,25,28和31 ℃)对半滑舌鳎(Cynoglossus semilaevis Günther)幼鱼的生长、体成分组成和能量收支的影响.结果表明,随温度的升高,半滑舌鳎幼鱼生长率总体呈现先升高后降低的趋势.其中,在19～25 ℃温度范围内,半滑舌鳎幼鱼的特定生长率相对较高,在16和28 ℃下则有所降低,而在31 ℃下,半滑舌鳎幼鱼特定生长率则显著降低.本研究表明半滑舌鳎幼鱼特定生长率与温度符合二次曲线模型.半滑舌鳎摄食量随温度升高而逐渐增大,但在31 ℃时显著减小,饵料转化率则随温度的升高而降低.鱼体脂肪与能值均随温度升高而降低,蛋白质含量受温度影响不显著.温度对半滑舌鳎的能量收支影响显著,其中,生长能和代谢能主导半滑舌鳎的能量分配,生长能占摄食能比例则随温度的升高而降低,呼吸能占摄食能比例则随温度的升高而升高.本研究表明,半滑舌鳎幼鱼(13～37 g)适宜生长温度范围为18～25 ℃,而不同温度导致的半滑舌鳎摄食量和能量收支的差异可能是温度影响其生长的主要生理生态学机制.
연구료불동온도(16,19,22,25,28화31 ℃)대반활설탑(Cynoglossus semilaevis Günther)유어적생장、체성분조성화능량수지적영향.결과표명,수온도적승고,반활설탑유어생장솔총체정현선승고후강저적추세.기중,재19～25 ℃온도범위내,반활설탑유어적특정생장솔상대교고,재16화28 ℃하칙유소강저,이재31 ℃하,반활설탑유어특정생장솔칙현저강저.본연구표명반활설탑유어특정생장솔여온도부합이차곡선모형.반활설탑섭식량수온도승고이축점증대,단재31 ℃시현저감소,이료전화솔칙수온도적승고이강저.어체지방여능치균수온도승고이강저,단백질함량수온도영향불현저.온도대반활설탑적능량수지영향현저,기중,생장능화대사능주도반활설탑적능량분배,생장능점섭식능비례칙수온도적승고이강저,호흡능점섭식능비례칙수온도적승고이승고.본연구표명,반활설탑유어(13～37 g)괄의생장온도범위위18～25 ℃,이불동온도도치적반활설탑섭식량화능량수지적차이가능시온도영향기생장적주요생리생태학궤제.
The influence of temperature(16, 19, 22, 25, 28 and 31 ℃) on the growth, biochemical composition and energy budget was investigated in juvenile tongue sole(Cynoglossus semilaevis Güther). The results showed that the specific growth rate of tongue sole increased with the increase of temperature from 16～25 ℃ and then decreased at 28～31 ℃. The relationship between specific growth rate of juvenile tongue sole and temperature was described as quadratic. Lipid and energy contents of dry body decreased with increasing temperature, while crude protein content was not significantly affected by temperature. The effects of temperature on the energy budget of juvenile tongue sole were significant. Energy assimilated in growth and those consumed in respiration dominated the mode of the energy allocation of juvenile tongue sole. The proportion of food energy allocated to respiration increased with increasing temperature. However, those assimilated to growth decreased with increasing temperature. The present study revealed that the suitable temperature of juvenile tongue sole was 18～25 ℃. The mechanism of temperature effect on the growth of tongue sole may be ascribed to the differences of food consumption and energy budget resulted from different temperatures.