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NITROGEN METABOLISM IN LAKES II. ROLE OF NITROGEN FIXATION IN SANCTUARY LAKE, PENNSYLVANIA 1
Author(s) -
Dugdale Vera A.,
Dugdale Richard C.
Publication year - 1962
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.1962.7.2.0170
Subject(s) - nitrogen fixation , nitrogen , nitrogenase , population , photosynthesis , anabaena , environmental science , nitrogen cycle , ecology , fixation (population genetics) , environmental chemistry , tracer , biology , botany , chemistry , cyanobacteria , physics , demography , organic chemistry , sociology , bacteria , genetics , nuclear physics
A study of the rates of nitrogen fixation using N 15 as a tracer was made in Sanctuary Lake, Pennsylvania. The rates of fixation in the lake were found to be considerable during the summer and appeared to be correlated with the presence of a dense population of Anabaena. Laboratory experiments supported the idea that photosynthetic organisms were responsible since a strong correlation with light was found.