Dark Carbon Fixation: An Important Process in Lake Sediments. Santoro, A. L., Bastviken, D., Gudasz, C., Tranvik, L., & Enrich-Prast, A. PLOS ONE, 8(6):e65813, June, 2013. Publisher: Public Library of Science
Dark Carbon Fixation: An Important Process in Lake Sediments [link]Paper  doi  abstract   bibtex   
Close to redox boundaries, dark carbon fixation by chemoautotrophic bacteria may be a large contributor to overall carbon fixation. Still, little is known about the relative importance of this process in lake systems, in spite the potentially high chemoautotrophic potential of lake sediments. We compared rates of dark carbon fixation, bacterial production and oxygen consumption in sediments from four Swedish boreal and seven tropical Brazilian lakes. Rates were highly variable and dark carbon fixation amounted up to 80% of the total heterotrophic bacterial production. The results indicate that non-photosynthetic carbon fixation can represent a substantial contribution to bacterial biomass production, especially in sediments with low organic matter content.
@article{santoro_dark_2013,
	title = {Dark {Carbon} {Fixation}: {An} {Important} {Process} in {Lake} {Sediments}},
	volume = {8},
	issn = {1932-6203},
	shorttitle = {Dark {Carbon} {Fixation}},
	url = {https://journals.plos.org/plosone/article?id=10.1371/journal.pone.0065813},
	doi = {10.1371/journal.pone.0065813},
	abstract = {Close to redox boundaries, dark carbon fixation by chemoautotrophic bacteria may be a large contributor to overall carbon fixation. Still, little is known about the relative importance of this process in lake systems, in spite the potentially high chemoautotrophic potential of lake sediments. We compared rates of dark carbon fixation, bacterial production and oxygen consumption in sediments from four Swedish boreal and seven tropical Brazilian lakes. Rates were highly variable and dark carbon fixation amounted up to 80\% of the total heterotrophic bacterial production. The results indicate that non-photosynthetic carbon fixation can represent a substantial contribution to bacterial biomass production, especially in sediments with low organic matter content.},
	language = {en},
	number = {6},
	urldate = {2020-08-31},
	journal = {PLOS ONE},
	author = {Santoro, Ana Lúcia and Bastviken, David and Gudasz, Cristian and Tranvik, Lars and Enrich-Prast, Alex},
	month = jun,
	year = {2013},
	note = {Publisher: Public Library of Science},
	keywords = {\#nosource, Carbon dioxide, Carbon fixation, Lakes, Marine bacteria, Sediment, Slurries, Surface water, Water columns},
	pages = {e65813},
}

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