四明湖水库浮游生物现状调查及评价  

Investigation and Assessment of Planktonic Population in Siminghu Reservoir

作　　者：周志明[1] 朱俊杰[1] 顾志敏[1] 贾永义[1] 周锡南 

机构地区：[1]浙江省淡水水产研究所,浙江湖州313000 [2]余姚市四明湖水库管理局,浙江宁波315430

出　　处：《水生态学杂志》2011年第3期104-107,共4页Journal of Hydroecology

摘　　要：2006-2007年分4次对余姚四明湖水库水质理化指标、浮游生物群落结构进行了调查,并进行了多样性指数分析及渔产潜力估算。结果表明,四明湖水库浮游植物种类共计8门、47种(属),其中以绿藻为最优势类群,占总密度的36.2%;浮游动物共计3大类、30种,其中原生动占40%;浮游植物年均生物量为10.20mg/L,浮游动物年均生物量2.36mg/L。从水体理化指标数据来看,四明湖水库水质属于II～IV类;从浮游植物群落结构和多样性指数分析结果来看,水库属于富营养水平;根据相关公式估算四明湖水库的鱼产潜力为2076kg/hm2。An investigation on physicochemical index and planktonic population was conducted between 2006 and 2007. Diversity index analysis and potential fishery production estimation were also carried out.Total 47 species phytoplankton samples were observed;the majority of them was Green Algae, which occupied 36.2%.Total 30 species zooplankton samples were observed, in which Protozoa was the main group.The annual average biomass of phytoplankton and zooplankton were 10.20 mg/L and 2.36 mg/L respectively.The physicochemical index data showed that the water quality of Siminghu Reservoir was between Class II and IV.Moreover,the analysis result of planktonic population and diversity index showed that the trophic level of Siminghu Reservoir was in eutrophic state. Meanwhile,the potential fishery yield was at 2 076 kg/hm2 according to estimation.

关 键 词：四明湖水库 浮游生物 鱼产潜力 营养等级 

分 类 号：Q178.2[生物学—水生生物学]