FATTY ACIDS IN LOTIC PERIPHYTON: ANOTHER MEASURE OF COMMUNITY STRUCTURE1
作者:
C. David McIntire,
Ian J. Tinsley,
Robert R. Lowry,
期刊:
Journal of Phycology
(WILEY Available online 1969)
卷期:
Volume 5,
issue 1
页码: 26-32
ISSN:0022-3646
年代: 1969
DOI:10.1111/j.1529-8817.1969.tb02571.x
出版商: Blackwell Publishing Ltd
数据来源: WILEY
摘要:
SUMMARYThe fatty acid spectra of 6 periphyton communities developed in laboratory streams at different combinations of light intensity and current velocity were determined by gas‐liquid chromatography and silver nitrate thin‐layer chromatography. Differences in species composition of the communities apparently had no striking effect on proportions of palmitic and stearic acids, whereas concentrations of myristic, palmitoleic, oleic, linoleic, and linolenic acids and a C20:5acid were more closely related to taxonomic differences. In general, communities dominated by blue‐green algae exhibited relatively high proportions of oleic, linolenic, and linolenic acids and low proportions of palmitoleic acid and a C20:5acid, as compared to communities consisting primarily of diatoms. The data also indicated an inverse relationship between fatty acid redundancy and species dive
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