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Decomposition of aquatic biota and sediment formation: bound lipids in algal detritus and lake sediments
Author(s) -
CRANWELL P. A.
Publication year - 1979
Publication title -
freshwater biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.297
H-Index - 156
eISSN - 1365-2427
pISSN - 0046-5070
DOI - 10.1111/j.1365-2427.1979.tb01514.x
Subject(s) - detritus , sediment , decomposition , environmental chemistry , biota , algae , organic matter , composition (language) , extraction (chemistry) , chemistry , ecology , biology , organic chemistry , paleontology , linguistics , philosophy
SUMMARY. Organic detritus resulting from microbial attack on algal material contains lipids directly extractable by organic solvents and also contains bound lipids, obtained by solvent extraction following acid hydrolysis. Differences between the composition of bound and extractable n‐alkanes, n‐ and branched/cyclic alkanoic acids from each source are attributed to a major bacterial input to these bound lipid classes. Similarities in composition between bound lipid classes of algal detritus and corresponding classes in a lake sediment support earlier suggestions of a considerable bacterially‐derived contribution to sedimentary bound lipids.