Physical, chemical, and biotic effects on arctic zooplankton communities and diversity
Physical, chemical, and biotic effects on arctic zooplankton communities and diversity
复制标题
对北极浮游动物群落和多样性的物理、化学和生物影响
DOI：
10.4319/lo.2004.49.4_part_2.1250
复制
发表时间：
2004
影响因子：
4.5
通讯作者：
J. Schuldt
中科院分区：
文献类型：
--
作者：
W. J. O'brien;M. Barfield;N. Bettez;G. Gettel;A. Hershey;M. E. McDonald;Michael C. Miller;H. Mooers;J. Pastor;C. Richards;J. Schuldt
我们研究了物理和化学因素以及鱼类种群如何影响104个阿拉斯加北极湖泊中浮游动物物种的存在和密度。五种鱼类和9个动物标本从湖泊中取样。湖泊深度与浮游动物的分布有关，在深湖中发现较小的浮游动物种类，而在浅水湖泊中发现较大的种类。离子强度和叶绿素都不是浮游动物存在或不存在的主要因素。当鱼类出现时，很少有（如果有的话）非常大的浮游动物出现在一起。然而，小型浮游动物物种的存在和密度与特定鱼类物种的存在之间的关系很复杂，并不符合预期的模式。浮游动物的多样性在这些北极湖泊是不相关的化学或鱼类分布，但物种丰富度增加，湖泊面积和深度。对于一些动物园（特别是Holopedium gibberum），部分湖泊含有动物园不同的地区。
We examined how physical and chemical factors and fish populations affected the presence and density of zooplankton species in 104 Alaskan arctic lakes. Five fish species and nine zooplankters were sampled from the lakes. Lake depth was related to the distribution of zooplankton in that smaller zooplankton species were found in deep lakes and large species in shallow lakes. Neither ionic strength nor chlorophyll was a major factor in zooplankton presence or absence. When fish were present, few, if any, very large zooplankton occurred together. However, the relationship between the presence and density of smaller‐sized zooplankton species and the presence of specific species of fish was complex and did not fit anticipated patterns. The diversity of zooplankton in these arctic lakes was not related to chemistry or fish distribution, but species richness increased with increasing lake area and depth. For a few zooplankters (notably Holopedium gibberum), the fraction of lakes containing the zooplankter varied by region.