TROPHIC RESPONSE TO PHOSPHORUS IN ACIDIC AND NONACIDIC LAKES IN NOVA-SCOTIA, CANADA

被引：14

作者：

KEREKES, JJ ^{[1
]}

BLOUIN, AC ^{[1
]}

BEAUCHAMP, ST ^{[1
]}

机构：

[1] DEPT ENVIRONM & LANDS,DIV WATER RESOURCES,ST JOHNS A1B 4J6,NEWFOUNDLAND,CANADA

来源：

HYDROBIOLOGIA | 1990年 / 191卷

关键词：

acid lakes; phosphorus; phytoplankton; trophic response;

D O I：

10.1007/BF00026044

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Twenty lakes (oligotrophic or eutrophic) with a wide range of acidity (pH 3.5 to 7.6) show a typical trophic response to total phosphorus with respect to algal biomass (OECD relationship), irrespective of their acidity. Zooplankton abundance is also related to total phosphorus, except for an outlier lake which is very acidic and eutrophic. This lake, however, has an abundant benthic and pelagic insect fauna and shows an overall 'normal' trophic response to phosphorus. In three lakes where planktonic primary production at light optimum (Pmaxwas measured, it was highest in the most acid lake (pH 4.4) which has the largest total phosphorus concentration. © 1990 Kluwer Academic Publishers.

引用

页码：105 / 110

页数：6

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