Zooplankton Changes in a Kansas Lake 1963–1981
Zooplankton Changes in a Kansas Lake 1963–1981
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1963 年至 1981 年堪萨斯湖中浮游动物的变化
DOI：
10.1080/02705060.1982.9664078
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发表时间：
1982
期刊：
影响因子：
--
通讯作者：
C. Prophet
中科院分区：
文献类型：
--
作者：
C. Prophet
摘要位于堪萨斯恩波里亚附近的阅读湖的湖沼微甲壳动物区系目前包括11种桡足类和18种枝角类，其中桡足类通常至少占样品中观察到的成年和未成年个体的70%。从1979年4月至1981年8月，桡足类的年平均现存量为每升11.1至18.6个个体，而枝角类为每升5.4至7.7个个体。自1975年以来，金氏细多拉（Leptodora kindti）和盔状水蚤（Daphnia galeata mendotae）已在该湖定居，而长喙博斯米纳（Bosmina longirostris）的丰度自金氏细多拉（Leptodora kindti）出现以来已明显下降。kindti。在本研究的最后两年，堪萨斯鱼类和野味渔业生物学家对线鳍鲱进行了试放养，并伴随着夏末浮游动物丰度的严重减少。
ABSTRACT The limnetic microcrustacean fauna of Lake Reading, located near Emporia, Kansas, now consists of 11 species of copepods and 18 species of cladocerans, with the Copepoda usually constituting at least 70 % of the adult and immature individuals observed in samples. The average annual standing crops from April 1979 to August 1981 ranged from 11.1 to 18.6 individuals per liter for the copepods compared to 5.4 to 7.7 cladocerans per liter. Leptodora kindti and Daphnia galeata mendotae have become established in the lake since 1975, and the abundance of Bosmina longirostris has declined markedly since the appearance of L. kindti. Trial stocking of the threadfin shad by Kansas Fish and Game fisheries biologists during the last two years of this study was accompanied by severe reductions in zoo-plankton abundance by late summer.