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	ISO, Metadata	Back- ground Info	RSS	E mail	Institution	Dataset ID
		data	graph		files	public	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		I   M	background			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
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/
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
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
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/748842
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
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	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	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/
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/
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/
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.