Dataset: Aquaculture N Cycle
Deployment: Cheerystone_Inlet

Measurements of nutrient flux and denitrification and DNRA rates in clam aquaculture sediments.

Principal Investigator:

Bongkeun Song (Virginia Institute of Marine Science, VIMS)

Co-Principal Investigator:

Mark J. Brush (Virginia Institute of Marine Science, VIMS)

Michael F. Piehler (University of North Carolina at Chapel Hill, UNC-Chapel Hill)

Craig Tobias (University of Connecticut, UConn - Avery Point)

Contact:

Bongkeun Song (Virginia Institute of Marine Science, VIMS)

BCO-DMO Data Manager:

Hannah Ake (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Microbial Regulation of Greenhouse Gas N2O Emission from Intertidal Oyster Reefs (Oyster Reef N2O Emission)

Current State:

Final no updates expected

Version:

Final

Version Date:

2017-05-23

Data URL:

https://osprey.bco-dmo.org/dataset-deployment/700953/data

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Description

Measurements of nutrient flux and denitrification and DNRA rates in clam aquaculture sediments.

Methods & Sampling

Dataset acquisition description

In May and July 2013, 16 randomly selected clam beds and 4 uncultivated sites and in November 2013, 7 randomly selected clam beds and 3 uncultivated sites were sampled at the Cheerystone Inlet of VA Eastern Shore. Uncultivated sites were located approximately 20 m from the clam beds, a distance chosen to reduce any influence of aquaculture on the control sediments and at a water depth similar to that of the clam beds. 60 cores were collected in May and July (20 total sites during each month), and 30 cores were collected in November (10 total sites). Cores were not treated as replicates, but were used to conduct concurrent incubations to measurement of denitrification and DNRA rates by isotope-pairing techniques. The details of methods are published in Murphy et al. (2016). DOI: 10.1002/lno.10305.

Data Processing Description

Dataset Processing Description

Nutrients and isotopic composition of N2 and NH4+ were used to calculate the fluxes and rates as reported in Murphy et al (2016). DOI: 10.1002/lno.10305.

BCO-DMO Processing Notes:

- column names reformatted to comply with BCO-DMO naming standards.
- nd used to replace all blank cells with no data.

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1233372	NSF Division of Ocean Sciences

Instruments

Isotope-ratio Mass Spectrometer

Supplied Name: IRMS

Supplied Description:

Instrument Type

Generic Name: Isotope-ratio Mass Spectrometer

Acronym: IR Mass Spec; IRMS

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB16/

Generic Description:

The Isotope-ratio Mass Spectrometer is a particular type of mass spectrometer used to measure the relative abundance of isotopes in a given sample (e.g. VG Prism II Isotope Ratio Mass-Spectrometer).

Multi Corer

Supplied Name: Core

Supplied Description:

Used to collect core samples

Instrument Type

Generic Name: Multi Corer

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/51/

Generic Description:

The Multi Corer is a benthic coring device used to collect multiple, simultaneous, undisturbed sediment/water samples from the seafloor. Multiple coring tubes with varying sampling capacity depending on tube dimensions are mounted in a frame designed to sample the deep ocean seafloor. For more information, see Barnett et al. (1984) in Oceanologica Acta, 7, pp. 399-408.

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
month	Month that sampling took place	unitless	month
treatment	Treatment description	unitless	treatment
ID	PI issued ID	unitless	sample
light_dark	Light or dark treatment	unitless	treatment
DIC	Concentration per hour	millimoles per meter squared per hour	DIC
Nox	Concentration per hour	micromoles per meter squared per hour	no_bcodmo_term
NH4	Concentration per hour	micromoles per meter squared per hour	NH4
PO4	Concentration per hour	micromoles per meter squared per hour	PO4
dark_DON	Concentration per hour	unitless	DON
DO	Concentration per hour	millimoles per meter squared per hour	O2
D14	Concentration per hour	micromoles per meter squared per hour	no_bcodmo_term
DNRAt	Concentration per hour	micromoles per meter squared per hour	no_bcodmo_term
D15	Concentration per hour	micromoles per meter squared per hour	no_bcodmo_term
Dw	Concentration per hour; Cherry WC Nox	micromoles per meter squared per hour	no_bcodmo_term
Dn	Concentration per hour; Cherry WC Nox	micromoles per meter squared per hour	no_bcodmo_term
DNRAw	Concentration per hour; Cherry WC Nox	micromoles per meter squared per hour	no_bcodmo_term
DNRAn	Concentration per hour; Cherry WC Nox	micromoles per meter squared per hour	no_bcodmo_term

Database

Contribute Data

Dataset: Aquaculture N Cycle
Deployment: Cheerystone_Inlet

Dataset acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Aquaculture N CycleDeployment: Cheerystone_Inlet

Dataset acquisition description

Dataset Processing Description

Dataset: Aquaculture N Cycle
Deployment: Cheerystone_Inlet