Energy flow ofBellamya aeruginosain a shallow algal lake, Houhu Lake (Wuhan, China)

The energy budget ofBellamya earuginosain a shallow algal lake, Houhu Lake (Wuhan, China) was investigated by the measurement of flesh production (32.8 kJ/(m2·a)), egestion (337.7 kJ/(m2·a)), metabolism (246.7 kJ/(m2·a)), and estimation of excretion (21.4kJ/(m2·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, mgO2/(Ind·d)), body weight (Wd, mg in dry wt) and temperature (T, °C) were also determined. The regression equationR=0.044Wd0.537e0.061Twas obtained by the least square method, The measured SDA of the species is 26.51% of its gross metabolism.