ERDDAP > info > bcodmo_dataset_780027

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	[Seagrass fauna counts] - Fauna species count data from minnow trap sampling within seagrass in Summer 2017 in Back Sound, North Carolina (Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms)		F   I   M	background			BCO-DMO	bcodmo_dataset_780027

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	For Table and Figure references below, see the document "MinnowTrap_statistical_analysis.pdf" in the Supplemental Files section. Study Site Selection We conducted our study across eight discrete seagrass meadows (hereafter referred to as landscapes) located in Back Sound, North Carolina (NC), USA (3442\u2032 N to 3439\u2032 N, 7637\u2032 W to 7631\u2032 W) (Fig. S1). All of our sampled landscapes were composed of a mixture of Back Sound's dominant seagrasses: eelgrass and shoal grass, Halodule wrightii (Ascherson 1868) (Yeager et al. 2016). Landscapes were chosen based upon available aerial imagery in Google Earth Pro as of February 19, 2017, and ground-truthed for changes in seasonal seagrass growth/senescence using summer, 2017, drone photography and ImageJ 1.x (Schneider et al. 2012). No discernable differences in landscape fragmentation states (e.g. total area, number of patches) were found between the two aerial imagery sources. All landscapes were relatively shallow (1-1.5 m depth at high tide), reasonably isolated from other seagrass beds (distance to nearest seagrass meadow = 112 17 m [mean standard error]) and were appropriately sized to encompass short-term (e.g., daily, monthly) movements of common seagrass-associated fauna in this system (Yeager et al. 2016). We identified similarly sized landscapes (25882 6592 m2) available in Back Sound by defining the minimum convex polygon surrounding the seagrass meadow, regardless of the total seagrass cover within the polygon. Among eight candidate landscapes of similar size, we defined four continuous landscapes and four fragmented landscapes based on the number of patches, the perimeter- to-area ratio, and the largest patch's percent cover of the total seagrass area (Table 1). Seagrass fragmentation is often naturally coupled with habitat loss (Wilcove et al. 1986), resulting in the mean seagrass area of our fragmented landscapes being nearly half that of our continuous landscapes (Table 1). Thus, our experiment was designed to examine the effects of fragmentation (i.e., the breaking apart of habitat concomitant with habitat loss) rather than fragmentation per se (i.e., the breaking apart of habitat without habitat loss; sensu Fahrig 2003). Seagrass-associated Fauna Sampling Seagrass-associated fauna were sampled to explore relationships between our observed predation/depredation rates and seasonal faunal densities within each fragmentation state. We sampled seagrass-associated fauna during each crab tethering cycle with four baited (with ~ 8 pieces of dried dog food; Mahoney et al. 2018) Gee-style minnow traps (41-cm long, 22-cm wide, 0.3-cm galvanized mesh-wire cylinders, with 4-cm diameter funneled openings) haphazardly deployed in each landscape. We acknowledge that baiting traps increases catch rates in our system and could bias the captured community toward predators and scavengers (our target community), yet this increase in catch rate seems to be uniform across seagrass habitat structure variables (Mahoney et al. 2018). At 24 h, faunae were enumerated, identified to the lowest taxonomical level possible, and released. Point measurements of water temperature (C) were taken in each landscape at the location and time of all faunal sampling using hand-held thermometers (Table S1). We chose temperature as our seasonality proxy (Fig. S2) because several other seasonally affected factors including faunal densities correlate with water temperature variability. Additionally, the measurement of temperature is easy, cheap, reliable, and comparable to previous studies. Equipment: * Generic brand dog food * Memphis and twine Gee-style minnow traps (41-cm long, 22-cm wide, 0.3-cm galvanized mesh-wire cylinders, with 4-cm diameter funneled openings)
attribute	NC_GLOBAL	awards_0_award_nid	String	714025
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1635950
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1635950
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 fauna counts - Minnowtrap data PI: Joel Fodrie Data Version 1: 2019-10-29
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	2019-10-29T19:00:27Z
attribute	NC_GLOBAL	date_modified	String	2019-11-13T18:25:00Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.780027.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-76.526267
attribute	NC_GLOBAL	geospatial_lat_max	double	34.703251
attribute	NC_GLOBAL	geospatial_lat_min	double	34.651056
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-76.526267
attribute	NC_GLOBAL	geospatial_lon_min	double	-76.587826
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/780027
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Memphis and twine Gee-style minnow traps (41-cm long, 22-cm wide, 0.3-cm galvanized mesh-wire cylinders, with 4-cm diameter funneled openings)
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	780121
attribute	NC_GLOBAL	instruments_0_description	String	shore fishing gear
attribute	NC_GLOBAL	instruments_0_instrument_name	String	minnow trap
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	679340
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, C_F, chemical, data, dataset, date, dmo, erddap, latitude, longitude, management, minnow, MinnowTrap_Num, name, num, oceanography, office, preliminary, scientific, Scientific_name, site, SiteID, species, Species_Num, time, trap
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/780027/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/780027
attribute	NC_GLOBAL	Northernmost_Northing	double	34.703251
attribute	NC_GLOBAL	param_mapping	String	{'780027': {'lat': 'master - latitude', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/780027/parameters
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	Dr F. Joel Fodrie
attribute	NC_GLOBAL	people_0_person_nid	String	559341
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 North Carolina at Chapel Hill
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	UNC-Chapel Hill-IMS
attribute	NC_GLOBAL	people_1_person_name	String	Amy Yarnall
attribute	NC_GLOBAL	people_1_person_nid	String	780032
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	34.651056
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Fauna species count data from minnow trap sampling within seagrass in Summer 2017 in Back Sound, North Carolina.
attribute	NC_GLOBAL	title	String	[Seagrass fauna counts] - Fauna species count data from minnow trap sampling within seagrass in Summer 2017 in Back Sound, North Carolina (Collaborative Research: Habitat fragmentation effects on fish diversity at landscape scales: experimental tests of multiple mechanisms)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-76.587826
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Date		String
attribute	Date	bcodmo_name	String	date
attribute	Date	description	String	Date minnow trap deployed (ISO 8601 format yyyy-mm-dd)
attribute	Date	long_name	String	Date
attribute	Date	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	Date	source_name	String	Date
attribute	Date	time_precision	String	1970-01-01
attribute	Date	units	String	unitless
variable	SiteID		String
attribute	SiteID	bcodmo_name	String	site
attribute	SiteID	description	String	Name of seagrass bed in which trap was deployed
attribute	SiteID	long_name	String	Site ID
attribute	SiteID	units	String	unitless
variable	C_F		String
attribute	C_F	bcodmo_name	String	site_descrip
attribute	C_F	description	String	Fragmentation state of seagrass bed: C = Continuous, F = Fragmented
attribute	C_F	long_name	String	C F
attribute	C_F	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	34.651056, 34.703251
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
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	-76.587826, -76.526267
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
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	MinnowTrap_Num		byte
attribute	MinnowTrap_Num	_FillValue	byte	127
attribute	MinnowTrap_Num	actual_range	byte	1, 4
attribute	MinnowTrap_Num	bcodmo_name	String	replicate
attribute	MinnowTrap_Num	description	String	Replicate number of minnow trap
attribute	MinnowTrap_Num	long_name	String	Minnow Trap Num
attribute	MinnowTrap_Num	units	String	unitless
variable	Species		String
attribute	Species	bcodmo_name	String	common_name
attribute	Species	description	String	Common name of species caught
attribute	Species	long_name	String	Species
attribute	Species	units	String	unitless
variable	Scientific_name		String
attribute	Scientific_name	bcodmo_name	String	taxon
attribute	Scientific_name	description	String	Scientific name of species caught
attribute	Scientific_name	long_name	String	Scientific Name
attribute	Scientific_name	units	String	unitless
variable	Species_Num		byte
attribute	Species_Num	_FillValue	byte	127
attribute	Species_Num	actual_range	byte	0, 33
attribute	Species_Num	bcodmo_name	String	count
attribute	Species_Num	description	String	Count number of individuals of a species caught in a minnow trap
attribute	Species_Num	long_name	String	Species Num
attribute	Species_Num	units	String	per individual

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.