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ALGAL POPULATIONS IN ARCTIC SEA ICE: AN INVESTIGATION OF HETEROTROPHY 1, 2
Author(s) -
HORNER RITA,
ALEXANDER V.
Publication year - 1972
Publication title -
limnology and oceanography
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.7
H-Index - 197
eISSN - 1939-5590
pISSN - 0024-3590
DOI - 10.4319/lo.1972.17.3.0454
Subject(s) - algae , assimilation (phonology) , arctic , heterotroph , substrate (aquarium) , oceanography , bacteria , the arctic , environmental chemistry , biology , sea ice , ecology , environmental science , botany , chemistry , geology , paleontology , philosophy , linguistics
Complex algal populations in the bottom few centimeters of arctic sea ice are accompanied by bacteria, protozoans, and other organisms. Community uptake of dissolved organic substances, assayed with 14 C‐glycine, 14 C‐glucose, and 3 H‐acetate, was slow. Microscopic examination of autoradiographs suggests that heterotrophic metabolism by the algae was negligible and that assimilation of the added substrate was almost exclusively by bacteria.