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The energy flow of Branchiura sowerbyi was studied for the first time in China in a shallow macrophytic lake, Biandantang Lake, Hubei Province. The energy flow was calculated from the measurement of flesh production (12.5241kJ/m2a), egestion (517.7302kJ/m2a), metabolism (38.3273 kJ/m2a), and excretion (4.3798kJ/m2a). The net growth efficiency of the species is about 22.7%, which accords well with the generally reported value for oligochaetes. In addition, the relationship between starvation respiration (R, mgO2/ind穌), wet weight (Ww, mg) and temperature (T, C) were also measured, with the regression function being R=0.008 Ww0.736 e0.050T.
The energy flow was obtained from the measurement of flesh production (12.5241 kJ / m2a), egestion (517.7302 kJ / m2a ), metabolism (38.3273 kJ / m2a), and excretion (4.3798 kJ / m2a). The net growth efficiency of the species is about 22.7%, which accords well with the generally reported value for oligochaetes. In addition, the relationship between starvation respiration Wet weight (Ww, mg) and temperature (T, C) were also measured, with the regression function being R = 0.008 Ww0.736 e0.050T.