网箱养鱼诱发有机物污染的生物监测

介绍三种通过底栖动物群落结构的变化对有机物污染监测和评价的方法,并分别对澳大利亚塔斯马尼亚州Nubeena鳟鱼养殖场内由高密度网箱养鱼诱发的有机物污染进行了检测。结果表明:距网箱垂线0m处为严重污染区域,10m处为中度污染区域,30m为过渡类型,其有机物对该处底栖生物仍具有害影响,60m处为轻度有机物富集区,但该处有机物对底栖生物的总效应是有益的,60m以外为正常区域。本文还对三种方法的适用性进行了讨论。

BIOLOGIC MONITORING OF INTENSE FISH CULTIVATION INDUCED ORGANIC POLLUTION

Three methods lor monitoring and detecting organic pollution by studying changes in benthic communities were introduced and used to detect the organic pollution induced by the intense cultivation of fish in cage in Nubeena salmonids farm, Tasmania, Australia. The results showed that under the cage till 10 meters away was a grossly polluted area, 30 meters away from the cage was a moderetely polluted area; in which organic matter has a negetive effect on fauna, 60 meters away from the cage was lightly organic enriched and the effects of organic matter on fauna was possitive. Beyond 60 meters was a 'naormal' area. The suitability of these methods was discussed.