伊洛河黄河鲤鱼天然产卵场渔业水质评价

2004-2009年5-8月对伊洛河黄河鲤(Cyprinus carpio haematoperus)天然产卵场水体中的TN、TP等营养盐和WT、pH、DO、CODMn、挥发酚、Cu、Zn、Pb、Cd和Hg等理化指标进行了为期6年的连续监测,对该水域水质的年代变化趋势和质量状况进行了研究和综合评价。结果表明,黄河鲤天然产卵场水质处于变动状态,2004、2005和2009年水质相对较好,2006、2007和2008年水质污染较重,监测年份水质污染随年份呈先上升再下降的趋势;水中主要污染物为TN、TP和CODMn。

Evaluation of fishery water Quality of the spawning ground of Yellow River Carp in Yiluo River

The N and P nutrient salts such as total nitrogen(TN) , total phosphorus(TP),and other physic-chemic indexs such as pH value ,temperature (T),chemical oxygen demand(CODMn),volatile phenol,cuprum,zinc,plumbum,cadmium,hydrargyrum of the spawning groumd of Yellow River carp in Yiluo River were monitored from May and August 2004 to 2009.Water quality variation trend and quality status were also evaluated and comprehensively assessed. The results showed the water quality of the spawning ground of Yellow River carp was in a volatile state with good water quality in the years of 2004,2005 and 2009.Hower ever,in the years of 2006,2007 and 2008,water quality was seriously polluted. In the monitoring years, pollution degree was going down after rising; the main pollutants were total nitrogen, total phosphorus chemical oxygen demand.