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当前位置: 首页 > 文章 > 东太湖河蟹围网生态养殖对水环境的影响 中国生态农业学报 2007,15 (2) 140-146
Position: Home > Articles > Innuences of crab eco-culture in net-enclosures in East Taihu Lake on water environment Chinese Journal of Eco-Agriculture 2007,15 (2) 140-146

东太湖河蟹围网生态养殖对水环境的影响

作  者：
吴伟;吴婷婷;何杰;范立民
单  位：
中国水产科学研究院淡水渔业研究中心
关键词：
东太湖;围网;水产养殖;生态;河蟹;环境
摘  要：
在2004年春季平水期到秋季枯水期间对东太湖河蟹围网生态养殖区的水环境进行了调查与监测。结果发现,水源对照区的水质主要超标项目为总N和总P,表明污染物主要是植物营养性元素。在东太湖围网养殖区中,水质主要超标项目为pH值和总P。生态养殖区的水质虽有超标,但超标幅度明显低于对照区的水源水。调查同时发现,河蟹生态养殖区因栽有大量的水草,对N、P的吸收比较充分,故生态养殖区的N、P在养殖周期中的变化较对照区小。总体而吉,生态养殖区的水质明显优于水源对照区,达到地表水环境质量标准中的三级标准和渔业水质标准。
译  名：
Innuences of crab eco-culture in net-enclosures in East Taihu Lake on water environment
作  者：
WU Wei, WU Ting-Ting,HE Jie,FAN Li-Min(Freshwater Fisheries Research Center, Chinese Academy of Fisheries Science, Wuxi 214081, China)
关键词：
East Taihu Lake,Net-enclosure,Aquaculture,Ecology,Crab,Environment
摘  要：
On the basis of on-the-spot survey and analysis of water quality in different crab eco-culture sections from April to November of 2004, the influences of crab eco-culture in net-enclosures in East Taihu Lake on water environment were appraised. The results indicate that in the control sections of water resources areas,the main factors which are beyond the standard of fishery water quality are total nitrogen content (TN) and total phosphor content (TP) ,but in the eco-culture sections the factors over the standard are pH and TP. So the water in the control sections is polluted by nutrient salts. The investigation also indicates that there are a lot of aquatic weeds in the eco-culture sections resulting in that the nutrient contents are much lower than those in the control sections. The results show that the crab eco-culture in net-enclosures in East Taihu Lake does not tamper with the water environment. The water quality in eco-culture sections accords with the demands of "Fishery Water Quality Standards"or"Surface Water Quality StandardsⅢ", and is better than that in the comparison sections.

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