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A POSSIBLE SOURCE OF ERROR IN THE 14 C METHOD OF MEASURING PRIMARY PRODUCTIVITY 1
Author(s) -
Arthur C. R.,
Rigler F. H.
Publication year - 1967
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.1967.12.1.0121
Subject(s) - filtration (mathematics) , volume (thermodynamics) , chemistry , phytoplankton , plankton , absorption (acoustics) , analytical chemistry (journal) , carbon fibers , chromatography , mathematics , physics , biology , optics , nutrient , thermodynamics , ecology , statistics , organic chemistry , algorithm , composite number
A relationship, not due to self‐absorption, has been shown between volume filtered and apparent specific activity of plankton, in which the latter decreases with increasing volume filtered. This decrease is attributed to an increased damage to phytoplankton during vacuum filtration as the volume filtered and consequently the filtration time were increased. Carbon fixation rates calculated from uptake of 14 C were lower than rates determined by the O 2 method (gross fixation) unless they were corrected for loss of 14 C during filtration. The corrected values were similar to those obtained by the O 2 method.