Numerical dynamics of sediment bacteria in shrimp polycultural ecosystems

Abstract

Abstract: The numerical dynamics of sediment bacteria was studied from May to September 1997, in the Shrimp Farm of Huanghai Fisheries Group Corporation with five experimental enclosures. It shows that the numbers of sediment bacteria ranged from 4.10×10⁸ to 12.36×10⁸ cells·g^-1,averaged 8.09×10⁸±2.17×10⁸ cells·g^-1,and increased gradually with increasing cultural time.The maximum was in 0～1cm layer,and decreased obviously bellow 2～3cm layer.

Key words: Shrimp polyculture, Experimental enclosure, Sediment bacteria, Numerical dynamics

LIU Guocai, LI Deshang, DONG Shuanglin, WANG Kun. Numerical dynamics of sediment bacteria in shrimp polycultural ecosystems[J]. Chinese Journal of Applied Ecology, 2000, (1): 139-141.

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