| 南湾水库鲢鳙放养比例对水质调控的研究 |
| Study of Fish Culture Manipulation on Nanwan Reservoir Eutrophication Water Quality |
| 投稿时间：2010-02-17 修订日期：2010-04-01 |
| DOI： |
| 中文关键词:南湾水库 放养比例 水质调控 |
| 英文关键词:Nanwan reservoir Cultured ratio Control of water quality |
| 基金项目: |
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| 中文摘要: |
| 鲢（Ｈｙｐｏｐｈｔｈａｌｍｉｃｈｔｈｙｓｍｏｌｉｔｒｉｘ）、鳙（Ａｒｉｓｔｉｃｈｔｈｙｓｎｏｂｉｌｉｓ）鱼种的放养比例由２０∶８０调整为４０∶６０，鲢的放养量由４．３７３ｇ／ｍ３增加到８．７４７ｇ／ｍ３，鳙的放养量由１７．４９４ｇ／ｍ３减少到１３．１２０ｇ／ｍ３，研究鲢鳙不同放养比例对南湾水库水质理化指标与浮游生物的影响。结果表明，放养比例调整后，南湾水库的水质得到了一定的改善，表现为ＣＯＤ、ＢＯＤ和叶绿素ａ含量显著降低，透明度显著升高，富营养化状态出现减轻的趋势；从浮游生物调查的结果来看，增大鲢的放养比例，能显著降低浮游植物的数量和生物量，同时也大大降低了蓝藻在藻类群落中所占的比例及生物量，有效地避免了南湾水库蓝藻水华的爆发。 |
| 英文摘要: |
| Investigation was done to study the effect of changing the ratio of silver carp to bighead carp from 20: 80 to 40: 60(the biomass of silver carp was increased from 4. 373g/m3 to 8.747g/m3，the biomass of bighead carp was decreased from 17.494g/m3 to 13.120g/m3).The results indicated that changing the silver carp to bighead carp ratio reduced the concentration of CODMn，BOD5 and chlorophyll a and increased the water body transparency significantly，thus improved water quality on a certain degree. Therefore the eutrophycation status of the water body showed a reducing trend. Furthermore，it reduced the density and biomass of phytoplankton significantly. Also, the regulation reduced the ratio of Cyanophyta in the algae colony and its biomass greatly and avoided the breakout of the water bloom of these alages.
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| 李林春.2010.南湾水库鲢鳙放养比例对水质调控的研究[J].水生态学杂志,31(4):70-72. |
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