Karla Martinez-Cruz

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Microbial methane (CH 4) ebullition (bubbling) from anoxic lake sediments comprises a globally significant flux to the atmosphere, but ebullition bubbles in temperate and polar lakes can be trapped by winter ice cover and later released during spring thaw. This " ice-bubble storage " (IBS) constitutes a novel mode of CH 4 emission. Before bub-5 bles are(More)
This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract Methanotrophic bacteria play an important role oxidizing a significant fraction of methane (CH 4) produced in lakes. Aerobic CH 4 oxidation depends on lake CH 4 and oxygen (O 2) concentrations,(More)
The literature concerning methane (CH4) emissions from temperate and boreal lakes is extensive, but emissions from tropical and subtropical lakes have been less documented. In particular, methane emissions from Mexican lakes, which are often polluted by anthropogenic carbon and nutrient inputs, have not been reported previously. In this work, methane(More)
Mexico City is a large city, populated by 8.8 million inhabitants. This population density, combined with poor wastewater management, results in aquatic ecosystems receiving a large volume of wastewater which may promote methane (CH4) emission. We measured water quality and CH4 emission from 11 aquatic ecosystems in Mexico City during 1 year, including(More)
This discussion paper is/has been under review for the journal Biogeosciences (BG). Please refer to the corresponding final paper in BG if available. Abstract Uncertainties in the magnitude and seasonality of various gas emission modes, particularly among different lake types, limit our ability to estimate methane (CH 4) and carbon dioxide (CO 2) emissions(More)
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