RE-EVALUATION OF THE ARAPHIDINEAE-CENTRALES INDEX AS AN INDICATOR OF LAKE TROPHIC STATUS

被引：28

作者：

BRUGAM, RB ^{[1
]}

机构：

[1] UNIV MINNESOTA,LIMNOL RES CTR,MINNEAPOLIS,MN 55455

来源：

FRESHWATER BIOLOGY | 1979年 / 9卷 / 05期

关键词：

D O I：

10.1111/j.1365-2427.1979.tb01529.x

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

SUMMARY. Comparisons of pre‐ and post‐settlement diatom assemblages from the sediment of twenty‐five Minnesota lakes reveals that Stephanodiscus hantzschii percentages are more consistent indicators of human disturbance than the Araphidineae/Centrales (A/C) index. In a set of eighty surface sediment samples from lakes whose water chemistry is known, S. hantzschii, a centric diatom, is abundant as a microfossil in lakes with total phosphorus > 15 μg I−1 and alkalinity > 1.5 m‐equiv. I−1. High Araphidineae/Centrales indices are characteristic of lakes with only moderate total phosphorus levels and very low alkalinities. Copyright © 1979, Wiley Blackwell. All rights reserved

引用

页码：451 / 460

页数：10

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