@proceedings {51768,
	title = {Carbon sources microbial community production and respiration in constructed oil sands wetlands},
	year = {2008},
	month = {10/2007},
	pages = {65 pages },
	address = {Nova Scotia },
	abstract = {Carbon sources, microbial community production and respiration were determined in nine northeastern Alberta wetlands subject to oil sands mining. A stable isotope mixing model estimated the proportion of carbon sources (primary production, sediment and petroleum) assimilated by microbes. The proportions of petroleum-derived carbon from oil sands process material (OSPM)-affected wetlands ranged from 62-97\%. Bacterioplankton production was quantified by monitoring 3H-leucine incorporation into bacterial proteins. Production and methanogenesis were inhibited by sulphate and/or salinity. Amending wetland sediments with topsoil, a reclamation strategy, did not affect bacterial production or stimulate decomposition. Unvegetated wetland sediments were small net exporters of C and do not appear to be on a trajectory to becoming net sinks in these early stages of development. Overall, microbial functional processes in OSPM- affected wetlands are markedly different from processes in reference-constructed wetlands of equivalent age and do not correspond to those in a mature natural wetland.},
	keywords = {aquatic species, microbiology, salinity, sodicity, sulphur and SO2, wetlands},
	author = {Daly, C. A. and Ciborowski, J. J.}
}
