温度、溶解氧对暗纹东方鲀幼鱼呼吸频率的影响  

The Effects of Water Temperature and DO on the Respiratory Rates of Immature Fugu Obscurus.

作　　者：沈旭明[1] 赵清良[2] 

机构地区：[1]江苏教育学院生物系,210013 [2]南京师范大学生命科学院,210097

出　　处：《生态学杂志》2001年第4期13-15,共3页Chinese Journal of Ecology

摘　　要：The rates of respiration of immature Fugu obscurus were measured in freshwater under conditions of different water temperature and DO.The results show that the variations of water temperature and DO can both cause the relative changes of respiratory rate.The water temperature become a major factor affecting the rates of respiration when DO saturation≥65%,and water temperature ranges between 10～32℃.The higher the temperature,the faster breathing is.The rates of respiration change from 47times·min -1 to 177times·min -1 with temperature rising from 10℃ to 32℃.The variations of the respiratory rates are also corresponding to the changes of water DO.The rate of respiration change from 120times·min -1 to 177timese·min -1 at water temperature 22℃,and from 125·min -1 to 180·min -1 at 24℃ respectively. When the amount of water DO declines from 8～2.1mg·min -1 L -1 .Inaddition,the movement of immature Fugu obscurus appear obviously weak,slowly moving,or motionlessly staying at the bottom of aquarium.Then a pre-suffocative reaction occurs when the DO decreases continuously to less than 2.1mg·L -1 at the temperature 22℃ and 24℃.The rates of respiration of immature Fugu obscurus were measured in freshwater under conditions of different water temperature and DO.The results show that the variations of water temperature and DO can both cause the relative changes of respiratory rate.The water temperature become a major factor affecting the rates of respiration when DO saturation≥65%,and water temperature ranges between 10～32℃.The higher the temperature,the faster breathing is.The rates of respiration change from 47times·min -1 to 177times·min -1 with temperature rising from 10℃ to 32℃.The variations of the respiratory rates are also corresponding to the changes of water DO.The rate of respiration change from 120times·min -1 to 177timese·min -1 at water temperature 22℃,and from 125·min -1 to 180·min -1 at 24℃ respectively. When the amount of water DO declines from 8～2.1mg·min -1 L -1 .Inaddition,the movement of immature Fugu obscurus appear obviously weak,slowly moving,or motionlessly staying at the bottom of aquarium.Then a pre-suffocative reaction occurs when the DO decreases continuously to less than 2.1mg·L -1 at the temperature 22℃ and 24℃.

关 键 词：温度 DO 溶解氧 暗纹东方tun 幼鱼 呼吸频率 

分 类 号：S965[农业科学—水产养殖]