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Table 3 Enhancement of benthic metabolism (O2 uptake or CO2 release) in sandy sediment inhabited by Nereis spp. and Arenicola marina. Values are given as percent difference between faunated and defaunated sediment (flux enhancement). The experimental conditions are indicated as: homog. = homogenized sediment in laboratory, intact = intact, but defaunated sediment in laboratory, in situ = in situ measurementa

From: Impact of polychaetes (Nereis spp. and Arenicola marina) on carbon biogeochemistry in coastal marine sediments†

Species Exp. conditions Density/ind. m-2 Flux enhancement (%)
N.virens[42] homog. 600 74
N. virens[54] homog. 1800 152
N. virens[47] intact 800 79
N. virens[9] homog. 600 74
N. diversicolor[48] intact 1990 70
N. diversicolor[49] homog. 1430 45
N. diversicolor[50] intact 1390 81
N. diversicolor[50] in situ 1000 25
N. diversicolor[46] homog. 1190 174
N. diversicolor[45] homog. 600 81
N. diversicolor[9] homog. 600 94
N. diversicolor[51] intact 2000 98
A. marina[45] homog. 600 260
A. marina[52] in situ 60 10
A. marina[52] homog. 200 162
  1. aNote that specimens of A. marina used in homogenized sediment were juveniles.