Effects of vanadium on freshwater phytoplankton photosynthesis

Samples from 7 lakes were enriched with vanadium and studied for changes in photosynthetic rates. In 6 of the 7 lakes photosynthetic rates decreased as a linear function of added vanadium concentration but vanadium did not inhibit phytoplankton photosynthesis in the seventh lake. Univariate and mult...

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Bibliographic Details
Published in:Water, air, and soil pollution air, and soil pollution, 1995-01, Vol.81 (1/2), p.93-105
Main Authors: Nalewajko, C, Lee, K, Jack, T.R
Format: Article
Language:English
Subjects:
algae and seaweeds
Animal, plant and microbial ecology
Applied ecology
Bacillariophyta
Bacteria
Biological and medical sciences
Biomass
Chlorophycota
Chrysophyta
Cryptophycophyta
Cyanobacteria
Ecotoxicology, biological effects of pollution
Fresh water environment
Freshwater
Fundamental and applied biological sciences. Psychology
inhibition
Lakes
Phosphorus
Photosynthesis
phytoplankton
principal component analysis
pyrrophyta
Q1
vanadium
water pollution
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Summary:Samples from 7 lakes were enriched with vanadium and studied for changes in photosynthetic rates. In 6 of the 7 lakes photosynthetic rates decreased as a linear function of added vanadium concentration but vanadium did not inhibit phytoplankton photosynthesis in the seventh lake. Univariate and multivariate analysis was used to evaluate the influence of phosphorus availability, phytoplankton biomass and taxonomic composition on the response to vanadium. Only lakes with a high proportion of cyanobacteria, high phytoplankton and a low proportion of Bacillariophyta and Chrysophyta were particularly vulnerable to photosynthetic inhibition by vanadium. Dissolved vanadium above the detection limit was only found in Hamilton harbour, Ontario lake and inshore areas of Erie lake. There are 34 references.
ISSN:0049-6979
1573-2932
DOI:10.1007/BF00477258