volume 39, issue 9, P1783-1794 2005
DOI: 10.1016/j.watres.2005.03.008
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Catarina M. Magalhães, Samantha B. Joye, Rosa M. Moreira, William J. Wiebe, Adriano A. Bordalo

Abstract: The regulatory effects of salinity and inorganic nitrogen compounds on nitrification and denitrification were studied in intertidal sandy sediments and rocky biofilms in the Douro River estuary, Portugal, over a 12-month period. Nitrification and denitrification rates were measured in slurries of field samples and enrichment experiments using the difluoromethane and the acetylene inhibition techniques, respectively. Salinity did not regulate denitrification in either environment, suggesting that halotolerant b…

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