Laybourn-Parry Johanna, Strachan I M
Department of Biological Sciences, University of Lancaster, Lancaster, UK.
Oecologia. 1980 Sep;46(3):386-390. doi: 10.1007/BF00346268.
The respiration rate of all stages of Cyclops bicuspidatus (s. str.) (Claus), a benthic copepod, from Esthwaite Water in the English Lake District, was determined at a range of field temperatures, 4° C-12° C, using cartesian diver microrespirometry. The population of C. bicuspidatus in Esthwaite Water was found to be adapted to low temperatures, with an optimum rate of metabolism at 8° C. Weight varied with temperature, in general the largest weights occurred at the lower temperatures. Adult males had higher rates of respiration than adult females, which were on average twice the size of males. Gravid and non-gravid females had similar levels of metabolism. Regression coefficients (b), derived from regressions of log oxygen consumption against log dry weight were low, ranging between 0.25-0.51 according to temperature.
利用笛卡儿潜水器微量呼吸测定法，在4℃至12℃的一系列野外温度条件下，测定了采自英国湖区埃斯韦特湖的一种底栖桡足类动物——双齿独眼水蚤（狭义）（克劳斯）各发育阶段的呼吸速率。研究发现，埃斯韦特湖中的双齿独眼水蚤种群适应低温环境，其新陈代谢的最佳速率出现在8℃。体重随温度变化，一般来说，较低温度下的体重最大。成年雄性的呼吸速率高于成年雌性，成年雌性的平均体型是雄性的两倍。怀卵雌体和非怀卵雌体的新陈代谢水平相似。根据温度不同，由氧消耗量对数与干重对数的回归得出的回归系数（b）较低，范围在0.25至0.51之间。
