80.
The energy budget of
Bellamya earuginosa in a shallow algal lake, Houhu Lake (Wuhan, China) was investigated by the measurement of flesh production (32.8 kJ/(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, °C) 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.
Project No. 3960019 and 39430101 supported by NSFC and also a granted for the East Lake Ecological Experimental Station, CAS,
Wuhan.
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