A comparison of oxygen, nitrate, and sulfate respiration in coastal marine sediments

1979 ◽  
Vol 5 (2) ◽  
pp. 105-115 ◽  
Author(s):  
Jan Sørensen ◽  
Bo Barker Jørgensen ◽  
Niels Peter Revsbech
Keyword(s):  
Marine Sediments ◽  
Coastal Marine Sediments ◽  
Coastal Marine

Effectiveness of Oxygen-Saturated Seawater Injections and Air Sparging Technologies in Remediation of Coastal Marine Sediments from Sludge

2021 ◽  
Author(s):  
Borja Ferrández-Gómez ◽  
Antonio Sánchez ◽  
Juana D. Jordá ◽  
Eva S. Fonfría ◽  
César Bordehore ◽  
...  
Keyword(s):  
Marine Sediments ◽  
Air Sparging ◽  
Coastal Marine Sediments ◽  
Coastal Marine

scholarly journals Accumulation of phosphorus in coastal marine sediments: relationship to benthic and diffusive fluxes

2010 ◽  
Vol 74 (S1) ◽  
pp. 115-124 ◽  
Author(s):  
Rocio Ponce ◽  
Teodora Ortega ◽  
Jesús M. Forja ◽  
Abelardo Gómez-Parra
Keyword(s):  
Marine Sediments ◽  
Coastal Marine Sediments ◽  
Coastal Marine ◽  
Diffusive Fluxes

scholarly journals Microbial dark carbon fixation fueled by nitrate enrichment

2021 ◽  
Author(s):  
Joseph H. Vineis ◽  
Ashley N. Bulseco ◽  
Jennifer L. Bowen
Keyword(s):  
Microbial Communities ◽  
Marine Sediments ◽  
Salt Marshes ◽  
Carbon Fixation ◽  
Niche Partitioning ◽  
Coastal Marine Sediments ◽  
Functional Relationships ◽  
Coastal Marine ◽  
Dark Carbon Fixation ◽  
The Impact

Anthropogenic nitrate amendment to coastal marine sediments can increase rates of heterotrophic mineralization and autotrophic dark carbon fixation (DCF). DCF may be favored in sediments where organic matter is biologically unavailable, leading to a microbial community supported by chemoautotrophy. Niche partitioning among DCF communities and adaptations for nitrate metabolism in coastal marine sediments remain poorly characterized, especially within salt marshes. We used genome-resolved metagenomics, phylogenetics, and comparative genomics to characterize the potential niche space, phylogenetic relationships, and adaptations important to microbial communities within nitrate enriched sediment. We found that nitrate enrichment of sediment from discrete depths between 0-25 cm supported both heterotrophs and chemoautotrophs that use sulfur oxidizing denitrification to drive the Calvin-Benson-Bassham (CBB) or reductive TCA (rTCA) DCF pathways. Phylogenetic reconstruction indicated that the nitrate enriched community represented a small fraction of the phylogenetic diversity contained in coastal marine environmental genomes, while pangenomics revealed close evolutionary and functional relationships with DCF microbes in other oligotrophic environments. These results indicate that DCF can support coastal marine microbial communities and should be carefully considered when estimating the impact of nitrate on carbon cycling in these critical habitats.

Effects of bottom trawling on the quantity and biochemical composition of organic matter in coastal marine sediments (Thermaikos Gulf, northwestern Aegean Sea)

2005 ◽  
Vol 25 (19-20) ◽  
pp. 2491-2505 ◽  
Author(s):  
A. Pusceddu ◽  
C. Fiordelmondo ◽  
P. Polymenakou ◽  
T. Polychronaki ◽  
A. Tselepides ◽  
...  
Keyword(s):  
Organic Matter ◽  
Marine Sediments ◽  
Biochemical Composition ◽  
Aegean Sea ◽  
Bottom Trawling ◽  
Coastal Marine Sediments ◽  
Coastal Marine

Anaerobic denitrification in fungi from the coastal marine sediments off Goa, India

2009 ◽  
Vol 113 (1) ◽  
pp. 100-109 ◽  
Author(s):  
Sumathi J. Cathrine ◽  
Chandralata Raghukumar
Keyword(s):  
Marine Sediments ◽  
Coastal Marine Sediments ◽  
Coastal Marine
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