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Heterotrophic bacterial production (BP) in the East China Sea was measured using tritiated thymidine incorporation (TTI) method in winter 1997 and in summer 1998. The results showed BP in summer (1998, 3.50-15.70 μgC/(L·h) was higher than that in winter(1997, 0.46-2.62 μgC/(L·h). The high values of BP occurred around the Changjiang River estuary and around Station 410. The results at two anchor stations showed that vertical variation of BP was bottom>middle>surface in winter and middle>bottom>surface in summer. Compared with primary production (BP:PP), the average ratio of BP:PP was 0.17(0.04-0.30) in winter and 0.32(0.21-0.43) in summer. There were high ratios around the Changjiang River estuary in winter and around Station 111 in summer.
Heterotrophic bacterial production (BP) in the East China Sea was measured using tritiated thymidine incorporation (TTI) method in winter 1997 and in summer 1998. The results showed BP in summer (1998, 3.50-15.70 μgC / (L · h) was higher than that in winter (1997, 0.46-2.62 μgC / (L · h). The high values of BP occurred around the Changjiang River estuary and around Station 410. The results at two anchor stations showed that vertical variation of BP was bottom> middle Compared with primary production (BP: PP), the average ratio of BP: PP was 0.17 (0.04-0.30) in winter and 0.32 (0.21-0.43) in summer. There were high ratios around the Changjiang River estuary in winter and around Station 111 in summer.