Premium
Ecological characteristics of scale‐bearing Chrysophyceae from The Netherlands
Author(s) -
Roijackers R. M. M.,
Kessels H.
Publication year - 1986
Publication title -
nordic journal of botany
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 33
eISSN - 1756-1051
pISSN - 0107-055X
DOI - 10.1111/j.1756-1051.1986.tb00892.x
Subject(s) - alkalinity , ordination , taxon , biology , ecology , principal component analysis , sampling (signal processing) , scale (ratio) , streams , geography , chemistry , cartography , statistics , mathematics , organic chemistry , filter (signal processing) , computer science , computer vision , computer network
In 1979 50 sampling localities in the south‐eastern part of The Netherlands have been sampled once, twice or thrice. The scale‐bearing Chrysophyceae have been identified and their abundancies have been estimated. Determinations of pH, alkalinity and water temperature have been done, and the relation between the occurrence of the taxa and these environmental factors was studied. Cluster analysis (TWINSPAN) was used to detect groups of co‐occurring taxa. The ordination of these taxa (DECORANA) showed that the first principal component was the pH and the second principal component was the water temperature. Although very few environmental data could be used, these results indicate the importance of the pH (and alkalinity) of fresh waters in the occurrence of the scale‐bearing Chrysophyceae, whereas their quantitative development is greatly dependent on the water temperature. Experimental data are needed to test this hypothesis.