Environmental factors shaping microbial community structure in salt marsh sediments

Investigating Microbial Communities in Salt Marsh Sediments Using Card-fish

Microbial community composition and denitrifying enzyme activities in salt marsh sediments.

Denitrifying microbial communities and denitrification in salt marsh sediments may be affected by many factors, including environmental conditions, nutrient availability, and levels of pollutants. The objective of this study was to examine how microbial community composition and denitrification enzyme activities (DEA) at a California salt marsh with high nutrient loading vary with such factors....

Microbial indicators of oil-rich salt marsh sediments.

Selected microbial parameters were monitored in sediments from a pristine and an oil-field salt marsh. Although numbers of hydrocarbonoclastic bacteria and fungi were significantly greater in the oil field, the values did not show a strong correlation with levels of hydrocarbons (r = 0.43 and r = 0.49, respectively). However, a high correlation was noted between ratios of hydrocarbonoclastic an...

Microbial Community Structure in Petroleum Contaminated Sediments

1 Western Michigan University, Department of Biological Sciences, Kalamazoo, 9 Michigan 49008-5410, USA 10 2 Oklahoma State University, T. Boone Pickens School of Geology, 105 Noble Research 11 Center, Stillwater, OK 74078-3031, USA 12 3 U.S. Environmental Protection Agency, ORD, NERL, ESD, CMB, Las Vegas, Nevada, 13 89119. 14 ∆ Current Address: U.S. Geological Survey, 6520 Mercantile Way, Suit...

Community Composition of Nitrous Oxide-Related Genes in Salt Marsh Sediments Exposed to Nitrogen Enrichment

Salt marshes provide many key ecosystem services that have tremendous ecological and economic value. One critical service is the removal of fixed nitrogen from coastal waters, which limits the negative effects of eutrophication resulting from increased nutrient supply. Nutrient enrichment of salt marsh sediments results in higher rates of nitrogen cycling and, commonly, a concurrent increase in...