浙江饮用水源地浮游动物体积多样性及水质响应  

A PRELIMINARY STUDY ON SIZE DIVERSITY OF ZOOPLANKTON AND THEIR ASSOCIATION WITH TROPHIC LEVEL IN THE DRINKING WATER SOURCES, ZHEJIANG PROVINCE

作　　者：徐杭英[1,3] 于海燕[1] 俞建[1] 韩明春[1] 徐智焕[2] 李共国[2] 黄艺[3] 

机构地区：[1]浙江省环境监测中心,杭州310000 [2]浙江万里学院,浙江省生物工程重中之重学科,宁波315100 [3]北京大学环境科学与工程学院,北京100871

出　　处：《水生生物学报》2017年第2期407-413,共7页Acta Hydrobiologica Sinica

基　　金：浙江省自然科学基金青年基金(Q13C030015);浙江省重中之重学科开放基金(KF2016003)资助~~

摘　　要：为了解浙江饮用水源地浮游动物体积多样性及对水体综合营养状态(TLIc值)的响应特征,对16个饮用水源地(H1-H8为河网型,K1-K8为水库型)展开了水质参数、浮游动物群落生物体积及其多样性指数的季节调查。结果表明,生物体积密度的季节变化以1月(0.681 m L/L)>4月(0.443 m L/L)>10月(0.252 m L/L)>7月(0.229 m L/L),各季的第一优势种分别为汤匙华哲水蚤(Sinocalanus dorrii)(1月)、晶囊轮虫(Asplanchna sp.)(4月)、粗壮温剑水蚤(Thermocyclops dybowskii)(7月)和长额象鼻溞(Bosmina longirostris)(10月)。河网浮游动物生物体积以轮虫(44.6%)和枝角类(23.4%)为主,水库则以哲水蚤(39.5%)和轮虫(29.0%)为主。夏秋季浮游动物体积多样性指数(P<0.01)和物种多样性指数(P<0.05)与lg(浮游动物/浮游植物生物量比率)[lg(ZB鲶PB)]之间均有显著的相关性,水库中仅浮游甲壳动物体积多样性指数与lg(ZB鲶PB)之间有极其紧密的相关性(R2=0.77)。与物种多样性指数响应环境效应相比,甲壳动物的体积多样性指数(P<0.01)能更好地指示夏秋季河网的TLIc值,这归因于甲壳动物个体数(ind./L)转换成了生物体积密度(m L/L)过程中有效信息的放大。In order to understand the size diversities of the zooplankton community and response characteristics of thecomprehensive water bodies by trophic level index （TLIc value）, a seasonal investigation was conducted on zooplankton size diversities from two types of 16 drinking water sources （H1-H8 for rivers, K1-K8 for reservoirs） from Januaryto October 2011 in Zhejiang Province. The results showed that seasonal variations in the biovolume density of zoo-plankton from high to low were January （0.681 mL/L）, April （0.443 mL/L）, October （0.252 mL/L）, and July （0.229 mL/L）.The first dominant species of January, April, July, and October were Sinocalanus dorrii, Asplanchna sp., Thermocyc-lops dybowskii, and Bosmina longirostris respectively. Zooplankton were mainly Rotifera （44.6%） and Cladocera（23.4%） in the rivers by their biological volume, while Calanoida （39.5%） and Rotifera （29.0%） in the reservoirs. Therewere significant relationships between lg 10 transformed zooplankton/phytoplankton biomass ratio [lg （ZB：PB）] and size diversities （P〈0.01） or species diversities （P〈0.05） of zooplankton in the drinking water sources during summer and autumn,and crustacean zooplankton size diversity index was significantly positive correlated with lg （ZB：PB） （R2=0.77） in thereservoirs. Crustaceans size diversity （P〈0.01） were more reliable to TLIc value of the rivers than the species diversityduring summer and autumn, supported by the useful information amplification from the numbers of crustaceans （ind./L）converting into biovolume density （mL/L）.

关 键 词：河网 水库 浮游动物 体积多样性指数 TLIc值 

分 类 号：Q145.2[生物学—生态学]