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     data   graph     files  public [Oyster counts] - Live oyster counts and shell heights (grouped by size class) for 4 field
sites in Bogue Sound, North Carolina from 2015. (Microbial Regulation of Greenhouse Gas N2O
Emission from Intertidal Oyster Reefs)
   ?        I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_720191

The Dataset's Variables and Attributes

Row Type Variable Name Attribute Name Data Type Value
attribute NC_GLOBAL access_formats String .htmlTable,.csv,.json,.mat,.nc,.tsv
attribute NC_GLOBAL acquisition_description String At each site, a total of four 1/16 m2 quadrats were randomly tossed on the
oyster reef, two on the crest and two on the landward side of the reef.
Oysters were excavated to the sediment surface. Live oysters were counted and
shell heights were recorded. The 4 field sites are sites of oyster reef and
salt marsh restoration. Identified in data as UNC Institute of Marine Sciences
(IMS), Carrot Island (Carrot), NOAA Beaufort (NOAA), and Army Marsh (Army).
All sites located in Bogue Sound near Morehead City, NC.
attribute NC_GLOBAL awards_0_award_nid String 527293
attribute NC_GLOBAL awards_0_award_number String OCE-1233327
attribute NC_GLOBAL awards_0_data_url String http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1233327 (external link)
attribute NC_GLOBAL awards_0_funder_name String NSF Division of Ocean Sciences
attribute NC_GLOBAL awards_0_funding_acronym String NSF OCE
attribute NC_GLOBAL awards_0_funding_source_nid String 355
attribute NC_GLOBAL awards_0_program_manager String David L. Garrison
attribute NC_GLOBAL awards_0_program_manager_nid String 50534
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Oyster Counts
M. Piehler, PI
Version 14 December 2017
attribute NC_GLOBAL Conventions String COARDS, CF-1.6, ACDD-1.3
attribute NC_GLOBAL creator_email String info at bco-dmo.org
attribute NC_GLOBAL creator_name String BCO-DMO
attribute NC_GLOBAL creator_type String institution
attribute NC_GLOBAL creator_url String https://www.bco-dmo.org/ (external link)
attribute NC_GLOBAL data_source String extract_data_as_tsv version 2.3 19 Dec 2019
attribute NC_GLOBAL date_created String 2017-11-30T00:09:22Z
attribute NC_GLOBAL date_modified String 2019-03-18T19:51:53Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.720191.1
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/720191 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL keywords String 25mm, bco, bco-dmo, biological, bucket, Bucket_Num, chemical, data, dataset, dmo, erddap, greater, lengths, Lengths_greater_than_25mm, management, num, Num_Spat, oceanography, office, preliminary, site, spat, than, total, Total_Num_greater_than_25mm, Total_Num_Spat
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/720191/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/720191 (external link)
attribute NC_GLOBAL param_mapping String {'720191': {}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/720191/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of North Carolina at Chapel Hill
attribute NC_GLOBAL people_0_affiliation_acronym String UNC-Chapel Hill-IMS
attribute NC_GLOBAL people_0_person_name String Michael F. Piehler
attribute NC_GLOBAL people_0_person_nid String 522931
attribute NC_GLOBAL people_0_role String Principal Investigator
attribute NC_GLOBAL people_0_role_type String originator
attribute NC_GLOBAL people_1_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_1_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_1_person_name String Hannah Ake
attribute NC_GLOBAL people_1_person_nid String 650173
attribute NC_GLOBAL people_1_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL project String Oyster Reef N2O Emission
attribute NC_GLOBAL projects_0_acronym String Oyster Reef N2O Emission
attribute NC_GLOBAL projects_0_description String Extracted from the NSF award abstract:
Oyster reefs are biogeochemical hot spots and prominent estuarine habitats that provide disproportionate ecological function. Suspension-feeding eastern oysters, Crassostrea virginica, are capable of improving water quality and diminishing eutrophication by filtering nutrients and particles from the water and depositing them in the sediments. Remineralization of these deposits may enhance sedimentary denitrification that facilitates nitrogen removal in tidal estuaries. However, the scientific underpinning of oyster reef function has been challenged in various studies. In addition, recent studies of filter feeding invertebrates reported the production of nitrous oxide (N2O), a greenhouse gas, as an end product of incomplete denitrification by gut microbes. C. virginica could be another source of N2O flux from intertidal habitats. Preliminary work indicated substantial N2O production from individual oysters. The estimated N2O production from high density oyster reefs may exceed the N2O flux measured from some estuaries. With the new discovery of N2O emission and uncertainty regarding eutrophication control, the ecological value of oyster reef restoration may become equivocal.
This project will quantify N2O fluxes to understand the factors controlling N2O emission from oyster reefs. Sedimentary N processes will be examined to develop an oyster reef N model to estimate N2O emission from tidal creek estuaries relative to other N cycling processes. The PIs hypothesize that intertidal oyster reefs are a substantial source of N2O emission from estuarine ecosystems and the magnitude of emission may be linked to water quality. If substantial N2O flux from oyster reefs is validated, ecological benefits of oyster reef restoration should be reevaluated. This interdisciplinary research team includes a microbial ecologist, a biogeochemist, an ecologist and an ecosystem modeler. They will utilize stable isotope and molecular microbiological techniques to quantify oyster N2O production, elucidate microbial sources of N2O emission from oysters and sediments, and estimate seasonal variation of N2O fluxes from oyster reefs. Measurements from this study will be integrated into a coupled oyster bioenergetics-sediment biogeochemistry model to compare system level rates of N cycling on oyster reefs as a function of oyster density and water quality. Modeling results will be used to assess the relative trade-­offs of oyster restoration associated with N cycling. They expect to deliver the following end products:1) estimation of annual N2O flux from oyster reefs as an additional source of greenhouse gases from estuaries, 2) a better understanding of the environmental and microbial factors influencing N2O and N2 fluxes in tidal estuaries, 3) transformative knowledge for the effect of oyster restoration on water quality enhancement and ecosystem function, 4) direct guidance for oyster restoration projects whose goals include water quality enhancement, and 5) a modeling tool for use in research and restoration planning.
attribute NC_GLOBAL projects_0_end_date String 2015-08
attribute NC_GLOBAL projects_0_name String Microbial Regulation of Greenhouse Gas N2O Emission from Intertidal Oyster Reefs
attribute NC_GLOBAL projects_0_project_nid String 527289
attribute NC_GLOBAL projects_0_start_date String 2012-12
attribute NC_GLOBAL publisher_name String Biological and Chemical Oceanographic Data Management Office (BCO-DMO)
attribute NC_GLOBAL publisher_type String institution
attribute NC_GLOBAL sourceUrl String (local files)
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Live oyster counts and shell heights (grouped by size class) for 4 field sites in Bogue Sound, North Carolina from 2015.
attribute NC_GLOBAL title String [Oyster counts] - Live oyster counts and shell heights (grouped by size class) for 4 field sites in Bogue Sound, North Carolina from 2015. (Microbial Regulation of Greenhouse Gas N2O Emission from Intertidal Oyster Reefs)
attribute NC_GLOBAL version String 1
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Site   String  
attribute Site bcodmo_name String site
attribute Site description String Site where data were collected
attribute Site long_name String Site
attribute Site units String unitless
variable Bucket_Num   String  
attribute Bucket_Num bcodmo_name String sample
attribute Bucket_Num description String Bucket ID number
attribute Bucket_Num long_name String Bucket Num
attribute Bucket_Num nerc_identifier String https://vocab.nerc.ac.uk/collection/P02/current/ACYC/ (external link)
attribute Bucket_Num units String unitless
variable Lengths_greater_than_25mm   short  
attribute Lengths_greater_than_25mm _FillValue short 32767
attribute Lengths_greater_than_25mm actual_range short 24, 151
attribute Lengths_greater_than_25mm bcodmo_name String count
attribute Lengths_greater_than_25mm description String Number of oysters greater than 25mm
attribute Lengths_greater_than_25mm long_name String Lengths Greater Than 25mm
attribute Lengths_greater_than_25mm units String count
variable Total_Num_greater_than_25mm   short  
attribute Total_Num_greater_than_25mm _FillValue short 32767
attribute Total_Num_greater_than_25mm actual_range short 0, 405
attribute Total_Num_greater_than_25mm bcodmo_name String count
attribute Total_Num_greater_than_25mm description String Total number of oysters greater than 25 mm
attribute Total_Num_greater_than_25mm long_name String Total Num Greater Than 25mm
attribute Total_Num_greater_than_25mm units String count
variable Num_Spat   short  
attribute Num_Spat _FillValue short 32767
attribute Num_Spat actual_range short 1, 565
attribute Num_Spat bcodmo_name String count
attribute Num_Spat description String Number of oyster recruits
attribute Num_Spat long_name String Num Spat
attribute Num_Spat units String count
variable Total_Num_Spat   short  
attribute Total_Num_Spat _FillValue short 32767
attribute Total_Num_Spat actual_range short 2, 2281
attribute Total_Num_Spat bcodmo_name String count
attribute Total_Num_Spat description String Total number of oyster recruits
attribute Total_Num_Spat long_name String Total Num Spat
attribute Total_Num_Spat units String count

The information in the table above is also available in other file formats (.csv, .htmlTable, .itx, .json, .jsonlCSV1, .jsonlCSV, .jsonlKVP, .mat, .nc, .nccsv, .tsv, .xhtml) via a RESTful web service.


 
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