TABLE 1.

Abundance of bacterial populations as quantified by DNA-DNA hybridizationa

Treatment and strainMean no. of bacteria (104 cells ml−1) ± SEb in:
MarchMayNovember
+RDOM+I
    Flavobacterium sp. strain GOBB3-30912.3 ± 4.023.5 ± 4.516.3 ± 0.0
    Flavobacterium sp. strain GOBB3-20912.8 ± 2.32.4 ± 0.19.3 ± 2.2
    Flavobacterium sp. strain GOBB3-C103-39.3 ± 1.88.2 ± 0.08.9 ± 1.5
    Marinomonas sp. strain GOBB3-3204.8 ± 2.311.8 ± 2.39.8 ± 2.6
    Flavobacterium sp. strain GOBB3-C101-16.2 ± 0.15.8 ± 1.96.2 ± 0.1
    CFB GOBB3-317-26.3 ± 1.22.9 ± 0.73.3 ± 0.7
−RDOM+I
    Flavobacterium sp. strain GOBB3-30900.8 ± 0.05.6 ± 2.4
    Flavobacterium sp. strain GOBB3-209000
    Flavobacterium sp. strain GOBB3-C103-34.1 ± 0.101.9 ± 0.2
    Marinomonas sp. strain GOBB3-32001.3 ± 0.00.9 ± 0.1
    Flavobacterium sp. strain GOBB3-C101-13.1 ± 0.90.9 ± 0.01.8 ± 0.2
    CFB GOBB3-317-2001.7 ± 0.9
  • a The most dominating taxa in the +RDOM+I treatment in comparison to their abundance in the −RDOM+I treatment are shown. Abundance values were statistically different between treatments for all species (P < 0.01, Mann-Whitney test).

  • b Mean value of two replicates.