Benthic Invertebrates and Sediment-Water Interactions

Natural populations of meiofanna ( 100 cm nematodes, jnvenile bivalves, and polychaetes) have been shown to increase solnte transport by approximately twice the molecular diffusive flux, as shown for chloride and bromide (Fignre 14.9) (Aller and Aller, 1992). These values are lower than 

FIGURE 14.9 Influence of bioturbation on diffusion of chloride and bromide in the sediments. (Data from Aller and Aller, 1992.) 

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