溫度對海燕攝食、呼吸和消化的影響

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中圖分類號：S968.3 文獻(xiàn)標(biāo)志碼：A 文章編號：1004—6755（2025）06-0005—08

DOI：10.3969/j.issn.1004-6755.2025.06.001

Effects of temperature on feeding，respiration and digestion of Asterina pectinifera

ZHANG Weijial，WANG Shimeng1，TIAN Tao1 2， 3， YU Xiaoming1， 2，3， WU Zhongxin1，2，3，LI Qingxia1，2.3 （1.Liaoning Marine Ranch Enginering Technology Research Center，DalianOcean University，Dalianl16023，China; 2.Marine Ranch Industry Research Institute，Dalian Ocean University，Dalian 116O23，China； 3.Key Laboratory of Education Department for Facilities Fisheries，Dalian 116O23，China）

Abstract： To investigate the efects of temperature on the feeding，digestion，and respiratory physiology of the starfish Asterina pectinifera ，this study conducted controlled laboratory experiments using three size groups （small： 3～4cm ；medium： 4～5cm ;large： 5～6 cm in diameter）under three temperature gradients （ 15°C ， ，and 25°C ）.Key physiological parameters，including food intake， feeding rate，oxygen consumption rate，and digestive enzyme activity，were measured. Results showed that：No mortality was observed in any temperature group；At 20°C ，all size groups exhibited significantly higher food intake compared to 15°C and 10°C groups （ P<0.05 ），with a distinct diurnal feeding rhythm（daytime feeding rates were significantly lower than nighttime rates）；The 25°C group showed significantly elevated oxygen consumption rates （ P<0. 05 ），while within each temperature group，larger individuals progressively decreased their oxygen demand; No significant temperature一 dependent effects were detected in digestive enzyme activity P>0.05） . These findings indicate that 15～20°C represents the optimal temperature range for A . pectinifera feeding. For seabed-cultivated areas，enhanced management strategies to remove this species are recommended to mitigate poten tial ecological risks.

Key words：Asterina pectinifera；temperature; feeding ；breathing ;digestion

全球氣候變化引發(fā)海水溫度升高，對生物的多樣性、生存與繁殖以及生態(tài)系統(tǒng)功能造成不同程度的影響。（剩余11893字）