Effects of diesel oil on the polychaete Annelida in model benthic ecosystem

An experiment about the effect of diesel oil pollution on the model benthic ecosystem was conducted inthe land-based tank at the 3rd Institute of Oceanography, State Oceanic Administration, in Xiamen, added with No.0 diesel oil at concentrations of 5, 25, 125, 625 mg/dm3 in water of series sub-tanks for 16 h. The changes in polychaete community were studied in the period of two weeks with results that though all concentrations did not basically altered the population structure and composition, the total biomass decreased significantly and individualstended to be smaller in size. The average weight of individual decreased with the increase of diesel pollutant stress.

柴油在海洋底栖围隔生态系中的分布及其变化

本文论述了不同浓度的沙柴油污染海洋底栖围隔生态系后，在各相中的分布及其变化。实验结果表明：柴油添加后20h，底质油含量与水体油污染含量成正相关；菲律宾蛤行（Ruditapesphilippinarum）对柴油有较强的富集能力。柴油中短链正构烷烃（C8～C15）较易消失。柴油对底栖生态系的影响周期较长。