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ESTIMATES OF IN SITU RATES OF NITROGEN UPTAKE BY TRICHODESMIUM SP. IN THE TROPICAL ATLANTIC OCEAN 1
Author(s) -
Goering John J.,
Dugdale Richard C.,
Menzel David W.
Publication year - 1966
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.1966.11.4.0614
Subject(s) - trichodesmium , nitrogen , nitrate , algae , environmental science , environmental chemistry , oceanography , in situ , nitrogen assimilation , reactive nitrogen , nitrogen fixation , chemistry , biology , botany , ecology , diazotroph , geology , organic chemistry
Using the 15 N technique, the uptake rates of three inorganic nitrogen sources by Trichodesmium sp. occurring in the tropical Atlantic Ocean were measured. The uptake of ammonia was greatest followed by nitrate and molecular nitrogen. At some locations, assimilation of molecular nitrogen was considerable. The highest rate measured was 0.32 N liter −1 hr −1 , which is comparable to rates measured during nitrogen‐fixing blue‐green algae blooms in lakes.