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Accession Number PB2014-107939
Title Quantifying Benthic Nitrogen Fluxes in Puget Sound, Washington--A Review of Available Data.
Publication Date 2014
Media Count 54p
Personal Author A. J. Paulson R. W. Sheibleu
Abstract Understanding benthic fluxes is important for understanding the fate of materials that settle to the Puget Sound, Washington, seafloor, as well as the impact these fluxes have on the chemical composition and biogeochemical cycles of marine waters. Existing approaches used to measure benthic nitrogen flux in Puget Sound and elsewhere were reviewed and summarized, and factors for considering each approach were evaluated. Factors for selecting an appropriate approach for gathering information about benthic flux include: availability of resources, objectives of projects, and determination of which processes each approach measures. An extensive search of literature was undertaken to summarize known benthic nitrogen fluxes in Puget Sound. A total of 138 individual flux chamber measurements and 38 sets of diffusive fluxes were compiled for this study. Of the diffusive fluxes, 35 new datasets were located, and new flux calculations are presented in this report. About 65 new diffusive flux calculations are provided across all nitrogen species (nitrate, NO3-; nitrite, NO2-; ammonium, NH4+). Data analysis of this newly compiled benthic flux dataset showed that fluxes beneath deep (greater than 50 meters) water tended to be lower than those beneath shallow (less than 50 meters) water.
Keywords Benthos
Chemical composition
Data analysis
Marine resources
Ocean bottom
Puget Sound
Water pollution

Source Agency US Geological Survey
NTIS Subject Category 47D - Biological Oceanography
68D - Water Pollution & Control
Corporate Author Geological Survey, Reston, VA.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1422
Contract Number N/A

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