Factors regulating in situ filtering rates of cladocera
Factors regulating in situ filtering rates of cladocera
复制标题
枝角类原位过滤率的调节因素
DOI：
10.1139/f85-074
复制
发表时间：
1985
影响因子：
2.4
通讯作者：
R. Knoechel
中科院分区：
文献类型：
--
作者：
P. Chow;R. Knoechel
在不同的野外条件下，测定了10个湖泊中4种水蚤（Daphnia）以及Holopedium、Diaphanosoma、Ceriodaphnia和Bosmina的个体滤食率，以确定调节水蚤原位滤食的重要因素。线性回归分析表明，将所有10个湖泊的数据汇总后，甲壳长度占个体过滤率总方差的近60%。我们认为这些湖泊中的浮游动物滤食与它们的体积成比例，因为回归的函数斜率接近于3。分类关系对过滤率的影响一般不大。温度在12 ~ 22℃范围内对过滤率无显著影响；对于体型在0.30毫米到1.30毫米之间的动物，在黎明和黄昏测量的发病率与正午相比也没有显著差异。浮游植物浓度作为第二个自变量加入到与…相关的回归中。
Individual filtering rates of four species of Daphnia, as well as Holopedium, Diaphanosoma, Ceriodaphnia, and Bosmina, were measured in 10 lakes under various field conditions to identify important factors regulating in situ filter-feeding for these cladocerans. Linear regression analysis indicated that carapace length accounted for almost 60% of the total variance in individual filtering rates when data from all 10 lakes were pooled. We suggest that zooplankton in these lakes filter-feed in proportion to their volume, since the functional slope of this regression approximated 3. Taxonomic affiliation had generally little effect on filtering rates. Temperature, ranging from 12 to 22 °C, had no statistically significant effect on filtering rate; there were also no significant differences between rates measured at dawn and dusk compared with midday rates for animals ranging in size between 0.30 and 1.30 mm. Addition of phytoplankton concentration as a second independent variable to the regression relating f...