Responses of estuarine nematodes to an increase in nutrient supply: an in situ continuous addition experiment.

摘要: Abstract An experiment was carried out on an estuarine mudflat to assess impacts of inorganic nutrients used fertilize sugar-cane fields the surrounding aquatic ecosystem, through changes in nematode community structure. During 118 days, nine quadrats each 4 m2 were sampled six times after beginning fertilizer addition. The introduced weekly areas, at two different concentrations (low and high doses), three areas as control. introduction modified key descriptors. In general, nematodes negatively affected over study period. However, Comesa, Metachromadora, Metalinhomoeus, Spirinia Terschellingia considered tolerant, other genera showed degrees sensitivity. Nutrient input also affect availability quality food, changing trophic use should be evaluated with care because potential for damage biological communities coastal systems.