【摘要】 报道了连环湖他拉红泡(卡拉白鱼放养场)的水质季节变化动态及浮游生物组成.结果表明:该水水质透明度为23~35 cm,pH=8.00~8.82,硬度为1.285 4~3.331 5 mmol/L,碱度为6.879 6~9.617 9 mmol/L.水呈碱性,水型属碳酸盐类、镁组I型水(CIMg)和软水.水中COD含量为8.56~11.36 mg/L;主要营养元素总氮为0.545 5~0.761 8 mg/L,总磷为0.431 5~0.495 0 mg/L,属于中富-富营养型湖泊.湖水中多数理化组分在季节分布上差异不明显,个别测定值在5月(枯水期)较高,9月(平水期)出现回落.浮游植物5个门37个种属,其中硅藻门、绿藻门、蓝藻门3个门有34个种属,占98.93%;浮游植物总平均量为687.56×104ind/L,生物量8.888 3 mg/L.浮游动物共4类31个种属,数量上以原生动物、轮虫为主,占77.67%,生物量桡足类最大,为1.193 0 mg/L,浮游动物总平均量为270.690 ind/L.更多还原

【Abstract】 The monitoring data of water and season changes and plankton of Talahong in Lianhuan Lake were reported.The results indicated that its water quality was good,with transparency of 23-35 cm,pH=8.00—8.82,DK 1.285 4-3.331 5 mmol/L,Alk.6.879 6-9.617 9 mmol/L,and the water type CMgI as well as soft water.COD is 8.56—11.36 mg/L.The content of major nutrient elements such as TN is 0.545 5-0.761 8 mg/L,which was lower than TN of main lakes in Heilongjiang Province,TP(0.431 5—0.495 0 mg/L) is normal.The lake belongs to eutrophication lake.The majority of data did not change obviously during different seasons.However,a few data were high in May,while some were low in September.Phytoplankton belong to 5 Phylum-37 Genus or Species,the most quantity are Bacillariophyta、Chlorophyta and Cyanophyta,the rate is 98.93%.Total average quantity of Phytoplankton is 687.56×104 ind/L,and biomass is 8.888 3 mg/L;Zooplankton belong to 4 Phylums-31 Genus or Species,protozoon and rotifer have the most quantity(77.67%),Copepoda have the most biomass(1.193 0 mg/L),total average quantity of Zooplankton is 270.690 ind/L.更多还原