BCO-DMO ERDDAP
Accessing BCO-DMO data
log in    
Brought to you by BCO-DMO    

ERDDAP > info > bcodmo_dataset_748842

Grid
DAP
Data
Sub-
set
Table
DAP
Data
Make
A
Graph
W
M
S
Source
Data
Files
Acces-
sible
?
Title Sum-
mary
FGDC,
ISO,
Metadata
Back-
ground
Info
RSS E
mail
Institution Dataset ID
     data   graph     files  public [Core samples: Seagrass] - Seagrass (Zostera marina and Halodule wrightii) shoot count,
biomass and shoot height from seagrass bed core samples collected in Back Sound, North
Carolina in June and July of 2013 (Collaborative Research: Habitat fragmentation effects on
fish diversity at landscape scales: experimental tests of multiple mechanisms)
   ?   F   I   M   background (external link) RSS Subscribe BCO-DMO bcodmo_dataset_748842

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,.esriCsv,.geoJson
attribute NC_GLOBAL acquisition_description String We sampled 86 sites within seagrass habitats throughout Back Sound, North
Carolina, USA (3442\u2019 N to 3439\u2019 N, 7637\u2019 W to 7631\u2019 W
during July 2013. Sampling sites were located across 21 seagrass landscapes
which were defined by 200m x 80m rectangles (matching common isolated bed size
and shape within our system). These landscapes were previously selected to
represent independent gradients in both total seagrass cover (260-11,764 m2)
and landscape patchiness (1-75 individual patches; Yeager et al. 2016).
Sampling sites in the current study were haphazardly placed across all 21
landscapes, but always located within seagrass itself, and not the unvegetated
matrix.\u00a0

Seagrass core sampling and laboratory processing:
One core sample was taken from each sampling site. Each core measured 30 cm
in diameter and captured the above ground seagrass habitat as well as the top
10 cm of the sediment surface. All cores were taken within 2 h of low tide and
the GPS location of each core was marked with a Garmin 72H handheld unit
(Garmin International, Olathe, Kansas, USA). Low-tide depth was measured in
situ at each site at the time of sampling to the nearest 10 cm.\u00a0\u00a0

Seagrass tissue from the cores was separated and rinsed with clean freshwater.
Seagrass was sorted by species (Zostera marina and Halodule wrightii). All
shoots were enumerated to assess species-specific density and the first 20
shoots from each species were measured to assess maximum canopy height
(rounded to the nearest mm). Seagrass was then sorted according to above and
below-ground biomass; the above-ground biomass of each species was dried at 60
C for 48 h and weighed to the nearest 0.01 g.\u00a0

The core (30-cm diameter, PVC) was gently placed by hand at each site and
pushed down to a constant depth of 10 cm into the sediment.\u00a0 The core was
gently rotated to break seagrass rhizomes, then dug out by hand, lifted, and
placed into a resealable 1.5-gallon plastic bag. The sample was transported
back to the laboratory on ice.\u00a0

Shoot heights we averaged across (up to) 20 shoots measured within each
core.\u00a0 Mean shoot height per core was calculated using a pivot table in
Excel.\u00a0
attribute NC_GLOBAL awards_0_award_nid String 714031
attribute NC_GLOBAL awards_0_award_number String OCE-1661683
attribute NC_GLOBAL awards_0_data_url String https://www.nsf.gov/awardsearch/showAward?AWD_ID=1661683 (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 Michael E. Sieracki
attribute NC_GLOBAL awards_0_program_manager_nid String 50446
attribute NC_GLOBAL cdm_data_type String Other
attribute NC_GLOBAL comment String Seagrass from core samples
PI: Lauren Yeager
Data Version 2: 2019-06-14
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 2018-10-25T20:23:36Z
attribute NC_GLOBAL date_modified String 2019-06-21T15:47:08Z
attribute NC_GLOBAL defaultDataQuery String &time<now
attribute NC_GLOBAL doi String 10.1575/1912/bco-dmo.748842.2
attribute NC_GLOBAL Easternmost_Easting double -76.37371
attribute NC_GLOBAL geospatial_lat_max double 34.70648
attribute NC_GLOBAL geospatial_lat_min double 34.06503
attribute NC_GLOBAL geospatial_lat_units String degrees_north
attribute NC_GLOBAL geospatial_lon_max double -76.37371
attribute NC_GLOBAL geospatial_lon_min double -76.62355
attribute NC_GLOBAL geospatial_lon_units String degrees_east
attribute NC_GLOBAL geospatial_vertical_max double 1.0
attribute NC_GLOBAL geospatial_vertical_min double 0.0
attribute NC_GLOBAL geospatial_vertical_positive String down
attribute NC_GLOBAL geospatial_vertical_units String m
attribute NC_GLOBAL infoUrl String https://www.bco-dmo.org/dataset/748842 (external link)
attribute NC_GLOBAL institution String BCO-DMO
attribute NC_GLOBAL instruments_0_dataset_instrument_nid String 770831
attribute NC_GLOBAL instruments_0_description String Acquires satellite signals and tracks your location.
attribute NC_GLOBAL instruments_0_instrument_name String GPS receiver
attribute NC_GLOBAL instruments_0_instrument_nid String 706037
attribute NC_GLOBAL instruments_0_supplied_name String Garmin 72H handheld unit (Garmin International, Olathe, Kansas, USA)
attribute NC_GLOBAL keywords String bco, bco-dmo, biological, biomass, chemical, count, data, dataset, date, depth, dmo, erddap, hal, Hal_biomass_g, Hal_shoot_count, height, latitude, longitude, management, mean, Mean_hal_height_mm, Mean_zos_height_mm, oceanography, office, preliminary, replicate, shoot, site, zos, Zos_biomass_g, Zos_shoot_count
attribute NC_GLOBAL license String https://www.bco-dmo.org/dataset/748842/license (external link)
attribute NC_GLOBAL metadata_source String https://www.bco-dmo.org/api/dataset/748842 (external link)
attribute NC_GLOBAL Northernmost_Northing double 34.70648
attribute NC_GLOBAL param_mapping String {'748842': {'Latitude': 'master - latitude', 'Depth': 'master - depth', 'Longitude': 'master - longitude'}}
attribute NC_GLOBAL parameter_source String https://www.bco-dmo.org/mapserver/dataset/748842/parameters (external link)
attribute NC_GLOBAL people_0_affiliation String University of Texas - Marine Science Institute
attribute NC_GLOBAL people_0_affiliation_acronym String UTMSI
attribute NC_GLOBAL people_0_person_name String Lauren A. Yeager
attribute NC_GLOBAL people_0_person_nid String 714030
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 University of Texas - Marine Science Institute
attribute NC_GLOBAL people_1_affiliation_acronym String UTMSI
attribute NC_GLOBAL people_1_person_name String Lauren A. Yeager
attribute NC_GLOBAL people_1_person_nid String 714030
attribute NC_GLOBAL people_1_role String Contact
attribute NC_GLOBAL people_1_role_type String related
attribute NC_GLOBAL people_2_affiliation String Woods Hole Oceanographic Institution
attribute NC_GLOBAL people_2_affiliation_acronym String WHOI BCO-DMO
attribute NC_GLOBAL people_2_person_name String Amber York
attribute NC_GLOBAL people_2_person_nid String 643627
attribute NC_GLOBAL people_2_role String BCO-DMO Data Manager
attribute NC_GLOBAL people_2_role_type String related
attribute NC_GLOBAL project String Habitat Fragmentation
attribute NC_GLOBAL projects_0_acronym String Habitat Fragmentation
attribute NC_GLOBAL projects_0_description String Amount and quality of habitat is thought to be of fundamental importance to maintaining coastal marine ecosystems. This research will use large-scale field experiments to help understand how and why fish populations respond to fragmentation of seagrass habitats. The question is complex because increased fragmentation in seagrass beds decreases the amount and also the configuration of the habitat (one patch splits into many, patches become further apart, the amount of edge increases, etc). Previous work by the investigators in natural seagrass meadows provided evidence that fragmentation interacts with amount of habitat to influence the community dynamics of fishes in coastal marine landscapes. Specifically, fragmentation had no effect when the habitat was large, but had a negative effect when habitat was smaller. In this study, the investigators will build artificial seagrass habitat to use in a series of manipulative field experiments at an ambitious scale. The results will provide new, more specific information about how coastal fish community dynamics are affected by changes in overall amount and fragmentation of seagrass habitat, in concert with factors such as disturbance, larval dispersal, and wave energy. The project will support two early-career investigators, inform habitat conservation strategies for coastal management, and provide training opportunities for graduate and undergraduate students. The investigators plan to target students from underrepresented groups for the research opportunities.
Building on previous research in seagrass environments, this research will conduct a series of field experiments approach at novel, yet relevant scales, to test how habitat area and fragmentation affect fish diversity and productivity. Specifically, 15 by 15-m seagrass beds will be created using artificial seagrass units (ASUs) that control for within-patch-level (~1-10 m2) factors such as shoot density and length. The investigators will employ ASUs to manipulate total habitat area and the degree of fragmentation within seagrass beds in a temperate estuary in North Carolina. In year one, response of the fishes that colonize these landscapes will be measured as abundance, biomass, community structure, as well as taxonomic and functional diversity. Targeted ASU removals will then follow to determine species-specific responses to habitat disturbance. In year two, the landscape array and sampling regime will be doubled, and half of the landscapes will be seeded with post-larval fish of low dispersal ability to test whether pre- or post-recruitment processes drive landscape-scale patterns. In year three, the role of wave exposure (a natural driver of seagrass fragmentation) in mediating fish community response to landscape configuration will be tested by deploying ASU meadows across low and high energy environments.
attribute NC_GLOBAL projects_0_end_date String 2019-08
attribute NC_GLOBAL projects_0_geolocation String North Carolina
attribute NC_GLOBAL projects_0_name String Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms
attribute NC_GLOBAL projects_0_project_nid String 714026
attribute NC_GLOBAL projects_0_start_date String 2016-09
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 Southernmost_Northing double 34.06503
attribute NC_GLOBAL standard_name_vocabulary String CF Standard Name Table v55
attribute NC_GLOBAL summary String Seagrass (Zostera marina and Halodule wrightii) shoot count, biomass and shoot height from seagrass bed core samples collected in Back Sound, North Carolina in June and July of 2013.
attribute NC_GLOBAL title String [Core samples: Seagrass] - Seagrass (Zostera marina and Halodule wrightii) shoot count, biomass and shoot height from seagrass bed core samples collected in Back Sound, North Carolina in June and July of 2013 (Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms)
attribute NC_GLOBAL version String 2
attribute NC_GLOBAL Westernmost_Easting double -76.62355
attribute NC_GLOBAL xml_source String osprey2erddap.update_xml() v1.3
variable Site   String  
attribute Site bcodmo_name String site
attribute Site description String Sampling location name
attribute Site long_name String Site
attribute Site units String unitless
variable Date   String  
attribute Date bcodmo_name String date_local
attribute Date description String Date (local) where core was taken. Local time zone is Eastern Daylight Time (EDT, UTC-4)
attribute Date long_name String Date
attribute Date units String unitless
variable Replicate   byte  
attribute Replicate _FillValue byte 127
attribute Replicate actual_range byte 1, 10
attribute Replicate bcodmo_name String replicate
attribute Replicate description String Replicate core number at site
attribute Replicate long_name String Replicate
attribute Replicate units String unitless
variable latitude   double  
attribute latitude _CoordinateAxisType String Lat
attribute latitude _FillValue double NaN
attribute latitude actual_range double 34.06503, 34.70648
attribute latitude axis String Y
attribute latitude bcodmo_name String latitude
attribute latitude colorBarMaximum double 90.0
attribute latitude colorBarMinimum double -90.0
attribute latitude description String Latitude of location of where core taken
attribute latitude ioos_category String Location
attribute latitude long_name String Latitude
attribute latitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LATX/ (external link)
attribute latitude standard_name String latitude
attribute latitude units String degrees_north
variable longitude   double  
attribute longitude _CoordinateAxisType String Lon
attribute longitude _FillValue double NaN
attribute longitude actual_range double -76.62355, -76.37371
attribute longitude axis String X
attribute longitude bcodmo_name String longitude
attribute longitude colorBarMaximum double 180.0
attribute longitude colorBarMinimum double -180.0
attribute longitude description String Longitude of location where core taken
attribute longitude ioos_category String Location
attribute longitude long_name String Longitude
attribute longitude nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/LONX/ (external link)
attribute longitude standard_name String longitude
attribute longitude units String degrees_east
variable depth   double  
attribute depth _CoordinateAxisType String Height
attribute depth _CoordinateZisPositive String down
attribute depth _FillValue double NaN
attribute depth actual_range double 0.0, 1.0
attribute depth axis String Z
attribute depth bcodmo_name String depth
attribute depth colorBarMaximum double 8000.0
attribute depth colorBarMinimum double -8000.0
attribute depth colorBarPalette String TopographyDepth
attribute depth description String Low tide depth where the core was taken
attribute depth ioos_category String Location
attribute depth long_name String Depth
attribute depth nerc_identifier String https://vocab.nerc.ac.uk/collection/P09/current/DEPH/ (external link)
attribute depth positive String down
attribute depth standard_name String depth
attribute depth units String m
variable Zos_shoot_count   short  
attribute Zos_shoot_count _FillValue short 32767
attribute Zos_shoot_count actual_range short 0, 137
attribute Zos_shoot_count bcodmo_name String count
attribute Zos_shoot_count colorBarMaximum double 100.0
attribute Zos_shoot_count colorBarMinimum double 0.0
attribute Zos_shoot_count description String Number of shoots of Zostera marina in core
attribute Zos_shoot_count long_name String Zos Shoot Count
attribute Zos_shoot_count units String count (shoots)
variable Zos_biomass_g   float  
attribute Zos_biomass_g _FillValue float NaN
attribute Zos_biomass_g actual_range float 0.0, 5.2
attribute Zos_biomass_g bcodmo_name String biomass
attribute Zos_biomass_g description String Total dry weight of Zostera marina in core
attribute Zos_biomass_g long_name String Zos Biomass G
attribute Zos_biomass_g units String grams (g)
variable Mean_zos_height_mm   float  
attribute Mean_zos_height_mm _FillValue float NaN
attribute Mean_zos_height_mm actual_range float 0.0, 191.8
attribute Mean_zos_height_mm bcodmo_name String height
attribute Mean_zos_height_mm description String Mean height of 20 haphazardly selected shoots of Zostera marina within the core
attribute Mean_zos_height_mm long_name String Mean Zos Height Mm
attribute Mean_zos_height_mm units String millimeters (mm)
variable Hal_shoot_count   short  
attribute Hal_shoot_count _FillValue short 32767
attribute Hal_shoot_count actual_range short 0, 648
attribute Hal_shoot_count bcodmo_name String count
attribute Hal_shoot_count colorBarMaximum double 100.0
attribute Hal_shoot_count colorBarMinimum double 0.0
attribute Hal_shoot_count description String Number of shoots of Halodule wrightii in core
attribute Hal_shoot_count long_name String Hal Shoot Count
attribute Hal_shoot_count units String count (shoots)
variable Hal_biomass_g   float  
attribute Hal_biomass_g _FillValue float NaN
attribute Hal_biomass_g actual_range float 0.0, 10.04
attribute Hal_biomass_g bcodmo_name String biomass
attribute Hal_biomass_g description String Total dry weight of Halodule wrightii in core
attribute Hal_biomass_g long_name String Hal Biomass G
attribute Hal_biomass_g units String grams (g)
variable Mean_hal_height_mm   float  
attribute Mean_hal_height_mm _FillValue float NaN
attribute Mean_hal_height_mm actual_range float 0.0, 205.85
attribute Mean_hal_height_mm bcodmo_name String height
attribute Mean_hal_height_mm description String Mean height of 20 haphazardly selected shoots of Halodule wrightii within the core
attribute Mean_hal_height_mm long_name String Mean Hal Height Mm
attribute Mean_hal_height_mm units String millimeters (mm)

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.


 
ERDDAP, Version 2.22
Disclaimers | Privacy Policy | Contact