Bacterial productivity in intensely cultured high-yield fish pond using [H-3]TDR tracing analysis techniques
文献类型： 外文期刊
作者： Guo, XZ 1 ; Fang, XZ 1 ; Xie, J 1 ; Yu, TB 1 ; Zhang, WY 1 ;
作者机构： 1.CHINESE ACAD FISHERIES SCI, FRESHWATER FISHERIES RES CTR, WUXI 214081, JIANGSU, PEOPLES R CHINA
期刊名称：INTEGRATED FISH FARMING
ISSN：
年卷期： 1998 年
页码：
收录情况： SCI
摘要： This study measured aquatic bacteria productivity in the heterotrophic production system of an intensely cultured, high yielding fish pond using [H-3] TdR tracing analysis. Productivity was measured at three different water layers-50 cm, 100 cm and 200 cm below the water surface-and at the sediment surface of the experimental pond. Phytoplankton biomass per day was also measured. Bacterial productivity ranged between 30 and 60 mg/l/day in the water column compared to 114 mg/l/day at the sediment surface, and if was higher at both locations in the evening than in the morning. A rough comparison of bacterial and phytoplankton productivity suggested that bacterial productivity is at least equivalent to, and perhaps 2-3 times higher than phytoplankton productivity.
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