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Boucher, G.. |
Chemical and Biological evolution of sediments in closed circuit : II. Effect of soluble organic matter input on meiofauna in polytrophic systems. The effect on meiofauna of the input of soluble organic matter in closed circuit sand filters was followed during two years for an oligotrophic, a mesotrophic and an eutrophic tank, and during one year for an atrophic tank. In the case of no input, the density, biomass and species richness of nematodes decreases even if equitability remains constant. Oligotrophy maintains the stability and diversity. Mesotrophy changes the community composition by species succession. Eutrophy allows biomass increase, due to one dominant species. |
Tipo: Text |
Palavras-chave: Circuit clos; Matière organique; Meiofaune; Closed circuit; Organic matter; Meiofauna. |
Ano: 1979 |
URL: http://archimer.ifremer.fr/doc/00305/41653/40862.pdf |
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