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当前位置: 首页 > 文章 > 东平湖渔业水域水环境质量分析 水产学杂志 2018,31 (4) 20-26
Position: Home > Articles > Analysis of Water Quality in Fishery Waters of Dongping Lake Chinese Journal of Fisheries 2018,31 (4) 20-26

东平湖渔业水域水环境质量分析

作  者：
董贯仓;李秀启;刘超;朱士文;师吉华;冷春梅
单  位：
山东省淡水渔业研究院山东省淡水水产遗传育种重点实验室
关键词：
东平湖;渔业水域;水质
摘  要：
2015年5—9月,在4个典型站位(D1～D4)监测分析东平湖渔业生产前期和渔业生物快速生长期的水质状况及其对渔业利用的影响。D1位于大汶河入湖口湿地保护区,D2为网围及网箱养殖区,D3位于老湖镇主养草鱼Ctenopharyngodon idellus网围区,D4位于银山主养草鱼网围区,7月后轮捕上市。结果表明:东平湖水域总体为轻度富营养化,除高锰酸盐指数(COD_(Mn))和总磷(TP)含量超标9.58%和0.10%外,基本符合地表水Ⅲ类水质标准;不同时间东平湖水环境综合营养状态指数由高到低依次为8月>7月>9月>6月>5月,时间差异显著;不同渔业利用水域水环境综合营养状态指数为D2>D4>D1>D3,但相互之间差异不显著。虽然湖区良好的水交换条件可稀释渔业利用的影响,但仍应加强对渔业利用方式和强度的跟踪管理。
译  名：
Analysis of Water Quality in Fishery Waters of Dongping Lake
作  者：
DONG Guan-cang;LI Xiu-qi;LIU Chao;ZHU Shi-wen;SHI Ji-hua;LENG Chun-mei;Shandong Provincial Key Laboratory of Freshwater Genetics and Breeding, Shandong Freshwater Fisheries Research Institute;
关键词：
Dongping Lake;;fishery water area;;water quality
摘  要：
The water quality was monitored in the water sampled from the mouth of Dawenhe River to Dongping Lake for wetland protection area(D1), net enclosure and net cage culture area(D2), the main grass carp(Ctenopharyngodon idellus)net enclosure at Laohu county(D3), and the main grass carp net cage culture area at Yinshan where grass carp was reared in May and June(before good growth)and caught for market in July, August and September(good growth period)of 2015 in Dongping Lake(D4), and the effects of water quality on fishery utilization were analyzed in Dongping lake. The results showed that water quality in Dongping Lake was at the stage of mild eutrophication with water quality Ⅲ standard. The predominant pollutant factors were CODMnand TP, exceeding the standard of water quality for surface water at a rate of 9.58% and 0.10%, respectively. There were significantly temporal differences in water quality parameters, the order of comprehensive trophic level index being expressed as August > July > September >June > May. There was no significantly spatial difference in water parameters with the order of comprehensive trophic level index being D2 > D4 > D1 > D3. The effects of water quality on fishery utilization were offset by the good water exchange conditions in the lake area. However, it was still necessary to put more attention to the monitoring and management of fishery utilization. The findings are helpful to better understanding of the water quality and to assess the impacts of fishery utilization, and practical strategies for water quality protection in Dongping Lake.

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