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作 者:韩志泉[1,2] 郭雪清[1,2] 施燕支 崔英[1,2]
机构地区:[1]首都师范大学生物学系 [2]首都师范大学化学系
出 处:《动物学报》1997年第S1期12-19,共2页ACTA ZOOLOGICA SINICA
摘 要:经调查,在京郊污水池塘中,共鉴定出浮游动物78种,周年数量动态具有双峰型特点,但生物量动态却有一大二小之势,浮游动物年平均数量和年平均生物量分别为198151×104个/L和394210mg/L。依据轮虫、甲壳动物、原生动物与浮游动物生物量之间均有密切相关的原理,经计算建立了三个线性回归方程,预测值与实测基本相吻合,相对比较其中以^y=10357x-150437r=07681P<001|t|=09998>t04∴04>P>03x为250孤雌生殖(以下用250♀♀表示)轮虫怀卵总数(个)^y为浮游动物生物量(mg/L)最为简单,十分易操作,利于在相似水域浮游动物群落中加以应用,它能较准确地预测全年不同季节的生物量动态变化。This paper deals with the results of an observation on the community structure of zooplankton in a sewage pond in a Beijing suburb. Total 78 species of zooplankton are identified. The zooplankton annual average abundance and biomass were 19 8151 10 4/L and 39 4210mg/L respectively.The maximum of biomass was usually recorded in May-June. The influence of some biotic and abiotic factors on plankton community was analysed.The rotifers biomass was very high and about 53 62% of average biomass of the total zooplankton. We established a linear equation of zooplankton biomass as following: =1 0357 X -15 0437( r =0 7681 P <0 01) X :The number of eggs in 250 females of rotifers :zooplankton biomass mg/L
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