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Table 2 Percentage of frequency of occurrence (I O), numerical abundance (I N) and biomass (I W) of meiofauna groups found in the sediment cores (8.80 cm²) per season

From: Meiofauna as food source for small-sized demersal fish in the southern North Sea

  May 09 Jul 09 Oct 09 Jan 10
I O (%) I N (%) I W (%) I O (%) I N (%) I W (%) I O (%) I N (%) I W (%) I O (%) I N (%) I W (%)
Harpacticoids 55.5 1.8 46.5 55.2 3.9 92.2 57.1 1.2 57.9 46.5 3.8 66.5
Nematodes 10.0 96.2 2.2 7.6 93.9 2.7 9.9 97.3 2.4 9.4 94.2 4.3
Polychaetes 10.0 0.5 42.5 6.8 0.3 <0.1 8.7 0.3 37.7 7.3 0.1 24.2
Bivalves 8.7 0.5 0.4 7.2 0.3 0.6 9.9 0.6 0.3 9.3 0.1 1.1
Gastropods 2.4 0.2 <0.1 1.1 <0.1 1.2
Ostracods 0.6 0.1 <0.1 1.1 <0.1 0.2 6.3 <0.1 0.3
Echinoderms   5.2 <0.1 0.1 3.1 <0.1 0.2
Kinorhynchs 2.5 0.6 0.1 6.5 <0.1 0.1 7.7 0.6 0.4 6.3 <0.1 0.4
Harpacticoids copepodites 8.0 1.1 3.4 2.2 <0.1 0.7 <0.1 0.2 1.5
Others 14.6 0.9 8.0 9.2 0.3 1.0 5.6 <0.1 0.2 10.9 0.4 2.3
∑ of cores studied 18    22    9    20   
  1. Important values are marked in bold