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Methane oxidation in Lake Tanganyika (East Africa)
Author(s) -
Rudd John W. M.
Publication year - 1980
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.1980.25.5.0958
Subject(s) - methane , anaerobic oxidation of methane , anoxic waters , primary productivity , environmental science , productivity , cycling , geology , oceanography , geography , ecosystem , ecology , biology , archaeology , macroeconomics , economics
Methane oxidation rates were measured at five stations on Lake Tanganyika. Oxidation occurred mainly within a narrow zone at the boundary of the seasonally mixed layer and the permanently anoxic monimolimnion. Whole lake methane oxidation rates were estimated to have varied seasonally from 3.8 to 5.8 mmol CH 4 ·m −2 ·d −1 . The annual rate was tentatively estimated to be about 3.1 mmol CH 4 ·m −2 ·yr −1 , equivalent to at least 10% of annual primary productivity. Certain differences and similarities of methane cycling in Lakes Tanganyika and Kivu are compared to those in lakes of other types.