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Organic Carbon in a Eutrophic Fishpond
Author(s) -
Blažka Pavel,
Procházková Lidmila
Publication year - 1984
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19840690309
Subject(s) - dissolved organic carbon , total organic carbon , eutrophication , chemistry , environmental chemistry , carbon fibers , sephadex , scenedesmus , algae , carbon cycle , organic chemistry , nutrient , ecology , biology , materials science , ecosystem , composite number , composite material , enzyme
Accumulation of dissolved organic carbon (DOC) was studied in a eutrophic pond and in cultures of Scenedesmus abundans . Samples of pond water and media were treated with a cation exchanger in Na cycle and chromatographed on Sephadex G 25 and G 10. — UV spectra of the peak fractions were recorded. In the pond about half of the organic carbon is in fractions with an apparent molecular weight (AMW) of 500–1000, while in the algal medium (after cultivation) most of organic carbon has an AMW of about 120. These and spectral data did not suggest that aromatics and compounds with conjugated double bonds were major organic constituents of DOC.