›› 2020, Vol. 32 ›› Issue (9): 1581-1590.DOI: 10.3969/j.issn.1004-1524.2020.09.07

• Animal Science • Previous Articles     Next Articles

Effect of temperature on physiology metabolism of Meretrix petechialis

HU Gaoyu1,2, ZHANG Xiang2,3, LIN Xingguan2,3, CAI Yilong2,3, CAI Jingbo2,3, XIAO Guoqiang1,2,3, CHAI Xueliang1,2,3,*   

  1. 1. National Demonstration Center for Experimental Fisheries Science Education, Shanghai Ocean University, Shanghai 201306, China;
    2. Zhejiang Mariculture Research Institute, Wenzhou 325005, China;
    3. Zhejiang Key Laboratory of Exploitation and Preservation of Coastal Bioresource, Wenzhou 325005, China
  • Received:2020-04-07 Online:2020-09-25 Published:2020-10-10

Abstract: In the present study, Meretrix petechialis was selected as the study object. Based on the laboratory still water method and intermittent respiration measurement method, the effects of different temperature on ingestion rate, oxygen consumption rate, faecal egestion rate, and ammonia excretion rate of Meretrix petechialis were explored. It was shown that the maximum values of ingestion rate, ammonia excretion rate, faecal egestion rate and oxygen consumption rate were found under 25-30, 20-30, 15-20, and 35 ℃, respectively. With the elevated water temperature, the ingestion rate and ammonia excretion rate of Meretrix petechialis increased first and then decreased, while the faecal egestion rate gradually decreased, yet oxygen consumption rate increased. Under the experiment conditions, the variation ranges of ingestion rate, ammonia excretion rate, faecal egestion rate and oxygen consumption rate were 0.015-0.043 mg·g-1·h-1, 1.26-135.25 μg·g-1·h-1, 2.173-15.908 μg·g-1·h-1 and 0.290-1.780 mg·g-1·h-1, respectively. These results could provide references for the study of physiological metabolism of Meretrix petechialis in different seasons and guide the development of corresponding mariculture.

Key words: Meretrix petechialis, ingestion and excretion, oxygen consumption, intermittent respiration measurement method

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