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Methane oxidation in Cape Lookout Bight, North Carolina 1
Author(s) -
Sansone Francis J.,
Martens Christopher S.
Publication year - 1978
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.1978.23.2.0349
Subject(s) - seawater , anaerobic oxidation of methane , environmental chemistry , methane , water column , cape , incubation , facultative , oxygen , oceanography , nitrogen , oxidizing agent , chemistry , environmental science , ecology , biology , geology , history , biochemistry , archaeology , organic chemistry
Aerobic methane oxidation rates in seawater from Cape Lookout Bight, determined in the laboratory by concentration changes during incubation at 25° ± 0.5°C, averaged 0.010 ± 0.008 µ M d −1 when oxygen was high (>90 µ M) and dissolved inorganic nitrogen concentrations were below 14 µ M, typical of chemical conditions in the bight water column. When DIN concentrations exceeded 15–16 µ M with oxygen the same, the methane oxidation rate averaged 0.210 ± 0.026 µ M d −1 , suggesting that the methane‐oxidizing bacteria isolated from bight waters were facultative microaerophiles like those found in freshwaters. The results of an in situ incubation experiment agreed with those of the laboratory studies.