摘要
The energy budget of Bellamya earuginosa in a shallow algal lake, Houhu Lake (Wuhan, China) was investigated by the measurement of flesh production (32.8kJ/(m 2·a)), egestion (337.7 kJ/(m 2·a)), metabolism (246.7 kJ/(m 2·a)), and estimation of excretion (21.4kJ/(m 2·a)). The net growth efficiency of the species is about 10.9%, which accords with the generally reported value for gastropods. In addition, the relationships between starvation respiration ( R , mgO 2/(Ind·d)), body weight ( Wd , mg in dry wt) and temperature ( T , ℃) were also determined. The regression equation R =0.044 Wd 0.537 e 0.061T was obtained by the least square method, The measured SDA of the species is 26.51% of its gross metabolism.
The energy budget of Bellamya earuginosa in a shallow algal lake, Houhu Lake (Wuhan, China) was investigated by the measurement of flesh production (32.8kJ/(m 2·a)), egestion (337.7 kJ/(m 2·a)), metabolism (246.7 kJ/(m 2·a)), and estimation of excretion (21.4kJ/(m 2·a)). The net growth efficiency of the species is about 10.9%, which accords with the generally reported value for gastropods. In addition, the relationships between starvation respiration ( R , mgO 2/(Ind·d)), body weight ( Wd , mg in dry wt) and temperature ( T , ℃) were also determined. The regression equation R =0.044 Wd 0.537 e 0.061T was obtained by the least square method, The measured SDA of the species is 26.51% of its gross metabolism.
基金
ProjectNo.3 960 0 1 9and 3 94 3 0 1 0 1supportedbyNSFCandalsoagrantedfortheEastLakeEcologicalExperimentalStation CASWuhan
