ERDDAP > info > bcodmo_dataset_793259

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
	set	data	graph		files	public	Octocoral colony heights measured during transect surveys at four sites on the south shore of St. John, US Virgin Islands during June-October 2019		I   M	background			BCO-DMO	bcodmo_dataset_793259

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,.odvTxt
attribute	NC_GLOBAL	acquisition_description	String	Survey design: All sites were located at 6 to 9 meters depth. Censuses at East Cabritte, Europa, and Tektite were based on 50x10m areas that were arbitrarily selected and permanently marked with stainless steel eyebolts at the corners of the sites. A total of six transect lines, also marked with eyebolts, were laid out at 10 m intervals. All octocorals present in 1 x 1 m quadrats along the 10-meter long transects were scored. The transect identifier \"transect_pos\" has values 0, 10, 20, 30, 40 or 50 which represent position in meters within the 50x10 survey area corresponding to each of the 6 transects (e.g. 20 = 20m). The census at Booby Rock was conducted in a single day in which transects were randomly placed along a 50 m line that was arbitrarily placed on a constant depth contour. The transect identifier (transect_pos) for transects at Booby Rock refers to position along the 50 m line. Yawzi and Deep Tektite surveys: 20 quadrats at each transect (3 transects).\u00a0Yawzi transects were censused over two field trips, July/August and September. Sampling methods: Identifications were based on traits visible in the field, and samples of representative colonies were collected for further analysis in cases in which field identification was uncertain. Sclerites from those samples were examined for species identification. Two height measures are present, height of living tissue, which only includes that part of the axis with living tissue and total height which is the distance from the base to the tip of the farthest branch from the base (i.e. not necessarily perpendicular to the substrate), regardless of whether the tips or base had living tissue. (Only colonies with some living tissue were measured). All measures rounded to the nearest cm with the exception of 5 cm which only includes colonies >= 5 cm. Starting in 2016, measures less than 5 cm reflect colonies with thick branches which could only have <5 cm heights due to partial mortality.
attribute	NC_GLOBAL	awards_0_award_nid	String	752512
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1756381
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1756381
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	St. John Octocoral Abundances 2019 PI: Howard Lasker (University at Buffalo) Co-PI: Peter Edmunds (CSU Northridge) Version date: 2020-02-12 Octocoral adults are defined as individuals >= 5 cm height. With height determined to the nearest cm. ** Species_code note: "aa2" is an undescribed Antillogorgia sp. similar in appearance to A. americana.
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	2020-02-12T17:13:51Z
attribute	NC_GLOBAL	date_modified	String	2020-02-24T19:41:22Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.793259.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-64.7104
attribute	NC_GLOBAL	geospatial_lat_max	double	18.3167
attribute	NC_GLOBAL	geospatial_lat_min	double	18.3029
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-64.7104
attribute	NC_GLOBAL	geospatial_lon_min	double	-64.7299
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/793259
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	keywords	String	basal, Basal_damage, bco, bco-dmo, biological, census, Census_Year, chemical, code, comments, Comments_1, Comments_2_sample_tag_number, cyphoma, Cyphoma_present, damage, data, dataset, date, dmo, erddap, genus, Genus_Species, height, Height_of_living_tissue, latitude, living, longitude, management, meter, Meter_on_transect, number, oceanography, office, position, preliminary, present, sample, side, Side_of_transect, site, species, Species_code, tag, time, tissue, total, Total_height, transect, Transect_Position, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/793259/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/793259
attribute	NC_GLOBAL	Northernmost_Northing	double	18.3167
attribute	NC_GLOBAL	param_mapping	String	{'793259': {'Date': 'flag - time', 'Latitude': 'flag - latitude', 'Longitude': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/793259/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	State University of New York at Buffalo
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	SUNY Buffalo
attribute	NC_GLOBAL	people_0_person_name	String	Howard Lasker
attribute	NC_GLOBAL	people_0_person_nid	String	562092
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	California State University Northridge
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	CSU-Northridge
attribute	NC_GLOBAL	people_1_person_name	String	Peter J. Edmunds
attribute	NC_GLOBAL	people_1_person_nid	String	51536
attribute	NC_GLOBAL	people_1_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_1_role_type	String	originator
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	Shannon Rauch
attribute	NC_GLOBAL	people_2_person_nid	String	51498
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	Octocoral Community Dynamics
attribute	NC_GLOBAL	projects_0_acronym	String	Octocoral Community Dynamics
attribute	NC_GLOBAL	projects_0_description	String	NSF abstract: Coral reefs are exposed to a diversity of natural and anthropogenic disturbances, and the consequences for ecosystem degradation have been widely publicized. However, the reported changes have been biased towards fishes and stony corals, and for Caribbean reefs, the most notable example of this bias are octocorals ("soft corals"). Although they are abundant and dominate many Caribbean reefs, they are rarely included in studies due to the difficulty of both identifying them and in quantifying their abundances. In some places there is compelling evidence that soft corals have increased in abundance, even while stony corals have become less common. This suggests that soft corals are more resilient than stony corals to the wide diversity of disturbances that have been impacting coral corals. The best coral reefs on which to study these changes are those that have been studied for decades and can provide a decadal context to more recent events, and in this regard the reefs of St. John, US Virgin Islands are unique. Stony corals on the reefs have been studied since 1987, and the soft corals from 2014. This provides unrivalled platform to evaluate patterns of octocoral abundance and recruitment; identify the patterns of change that are occurring on these reefs, and identify the processes responsible for the resilience of octocoral populations. The project will extend soft coral monitoring from 4 years to 8 years, and within this framework will examine the roles of baby corals, and their response to seafloor roughness, seawater flow, and seaweed, in determining the success of soft corals. The work will also assess whether the destructive effects of Hurricanes Irma and Maria have modified the pattern of change. In concert with these efforts the project will be closely integrated with local high schools at which the investigators will host marine biology clubs and provide independent study opportunities for their students and teachers. Unique training opportunities will be provided to undergraduate and graduate students, as well as a postdoctoral researcher, all of whom will study and work in St. John, and the investigators will train coral reef researchers to identify the species of soft corals through a hands-on workshop to be conducted in the Florida Keys. Understanding how changing environmental conditions will affect the community structure of major biomes is the ecological objective defining the 21st century. The holistic effects of these conditions on coral reefs will be studied on shallow reefs within the Virgin Islands National Park in St. John, US Virgin Islands, which is the site of one of the longest-running, long-term studies of coral reef community dynamics in the region. With NSF-LTREB support, the investigators have been studying long-term changes in stony coral communities in this location since 1987, and in 2014 NSF-OCE support was used to build an octocoral "overlay" to this decadal perspective. The present project extends from this unique history, which has been punctuated by the effects of Hurricanes Irma and Maria, to place octocoral synecology in a decadal context, and the investigators exploit a rich suite of legacy data to better understand the present and immediate future of Caribbean coral reefs. This four-year project will advance on two concurrent fronts: first, to extend time-series analyses of octocoral communities from four to eight years to characterize the pattern and pace of change in community structure, and second, to conduct a program of hypothesis-driven experiments focused on octocoral settlement that will uncover the mechanisms allowing octocorals to more effectively colonize substrata than scleractinian corals on present day reefs. Specifically, the investigators will conduct mensurative and manipulative experiments addressing four hypotheses focusing on the roles of: (1) habitat complexity in distinguishing between octocoral and scleractinian recruitment niches, (2) the recruitment niche in mediating post-settlement success, (3) competition in algal turf and macroalgae in determining the success of octocoral and scleractian recruits, and (4) role of octocoral canopies in modulating the flux of particles and larvae to the seafloor beneath. The results of this study will be integrated to evaluate the factors driving higher ecological resilience of octocorals versus scleractinians on present-day Caribbean reefs. This award reflects NSF's statutory mission and has been deemed worthy of support through evaluation using the Foundation's intellectual merit and broader impacts review criteria.
attribute	NC_GLOBAL	projects_0_end_date	String	2022-03
attribute	NC_GLOBAL	projects_0_geolocation	String	St. John, US Virgin Islands
attribute	NC_GLOBAL	projects_0_name	String	Collaborative Research: Pattern and process in the abundance and recruitment of Caribbean octocorals
attribute	NC_GLOBAL	projects_0_project_nid	String	752508
attribute	NC_GLOBAL	projects_0_start_date	String	2018-04
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	18.3029
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	subsetVariables	String	Census_Year
attribute	NC_GLOBAL	summary	String	This dataset contains octocoral colony heights measured during transect surveys at four sites on the south shore of St. John, US Virgin Islands in June-October 2019.\r\n\r\nThese data are a continuation of BCO-DMO project 562086 (https://www.bco-dmo.org/project/562086) and BCO-DMO project 749653 (https://www.bco-dmo.org/project/749653).
attribute	NC_GLOBAL	time_coverage_end	String	2019-10-03
attribute	NC_GLOBAL	time_coverage_start	String	2019-07-10
attribute	NC_GLOBAL	title	String	Octocoral colony heights measured during transect surveys at four sites on the south shore of St. John, US Virgin Islands during June-October 2019
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-64.7299
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 name
attribute	Site	long_name	String	Site
attribute	Site	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	18.3029, 18.3167
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	Site latitude; converted from degrees decimal minutes to decimal degrees; positive values = N
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	-64.7299, -64.7104
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	Site longitude; converted from degrees decimal minutes to decimal degrees; positive values = E
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	Census_Year		short
attribute	Census_Year	_FillValue	short	32767
attribute	Census_Year	actual_range	short	2019, 2019
attribute	Census_Year	bcodmo_name	String	year
attribute	Census_Year	description	String	Four-digit year when the census took place; format: yyyy
attribute	Census_Year	long_name	String	Census Year
attribute	Census_Year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
attribute	Census_Year	units	String	unitless
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.5627168E9, 1.5700608E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	date
attribute	time	description	String	Date when the census took place; format: yyyy-mm-dd
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	Date
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ADATAA01/
attribute	time	source_name	String	Date
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z
variable	Transect_Position		byte
attribute	Transect_Position	_FillValue	byte	127
attribute	Transect_Position	actual_range	byte	0, 50
attribute	Transect_Position	bcodmo_name	String	transect
attribute	Transect_Position	description	String	Transects positioned in a marked 50x10m area, with stainless steel eye bolts marking each corner, and each of the 6 transect. Transects were 10m long across the 50x10m area at 0m; 10m; 20m; 30m; 40m; 50m.
attribute	Transect_Position	long_name	String	Transect Position
attribute	Transect_Position	units	String	unitless
variable	Side_of_transect		String
attribute	Side_of_transect	bcodmo_name	String	transect
attribute	Side_of_transect	description	String	Side of the transect tape (Left or Right), orientation looking towards open ocean, with the nearest shore to the back.
attribute	Side_of_transect	long_name	String	Side Of Transect
attribute	Side_of_transect	units	String	unitless
variable	Meter_on_transect		byte
attribute	Meter_on_transect	_FillValue	byte	127
attribute	Meter_on_transect	actual_range	byte	0, 9
attribute	Meter_on_transect	bcodmo_name	String	transect
attribute	Meter_on_transect	description	String	From 0m to 9m. 1x1m quadrats were positioned randomly along the 10 m transect. The values refer to the position of the "shoreward" corner of the quadrat. Thus "0"refers to the quadrat placed between the 0 and 1 meter marks
attribute	Meter_on_transect	long_name	String	Meter On Transect
attribute	Meter_on_transect	units	String	unitless
variable	Genus		String
attribute	Genus	bcodmo_name	String	genus
attribute	Genus	description	String	Genus
attribute	Genus	long_name	String	Genus
attribute	Genus	units	String	unitless
variable	Species_code		String
attribute	Species_code	bcodmo_name	String	taxon_code
attribute	Species_code	description	String	Octocoral species code. Field identifications of Pseudoplexaura flagellosa and P. wagenaari are difficult and for analysis purposes the two species should be lumped as a single group. Field identifications of Eunicea mammosa, E. laxispica, and E. succinea are sometimes difficult, thus, for analysis purposes the three species should be lumped as a single group. Colonies identified as Plexaurella dichotoma include colonies with sclerites that match Bayer’s Plexaurella fusifera and whose branches best match a thin branch version P. nutans. aa2 is an undescribed Antillogorgia sp. similar in appearance to A. americana.
attribute	Species_code	long_name	String	Species Code
attribute	Species_code	units	String	unitless
variable	Genus_Species		String
attribute	Genus_Species	bcodmo_name	String	species
attribute	Genus_Species	description	String	Genus and species
attribute	Genus_Species	long_name	String	Genus Species
attribute	Genus_Species	units	String	unitless
variable	Height_of_living_tissue		byte
attribute	Height_of_living_tissue	_FillValue	byte	127
attribute	Height_of_living_tissue	actual_range	byte	1, 108
attribute	Height_of_living_tissue	bcodmo_name	String	height
attribute	Height_of_living_tissue	description	String	Maximum distance from the base of the octocoral colony until the farthest tips of the longest branch with living tissue (i.e. not necessarily perpendicular to the substrate). All measures rounded to the nearest cm with the exception of 5 cm which only includes colonies >= 5 cm. Measures less than 5 cm reflect colonies with thick branches which could only have
attribute	Height_of_living_tissue	long_name	String	Height Of Living Tissue
attribute	Height_of_living_tissue	units	String	centimeters (cm)
variable	Total_height		byte
attribute	Total_height	_FillValue	byte	127
attribute	Total_height	actual_range	byte	2, 108
attribute	Total_height	bcodmo_name	String	height
attribute	Total_height	description	String	Total height (dead and alive tissue)
attribute	Total_height	long_name	String	Total Height
attribute	Total_height	units	String	centimeters (cm)
variable	Basal_damage		byte
attribute	Basal_damage	_FillValue	byte	127
attribute	Basal_damage	actual_range	byte	0, 64
attribute	Basal_damage	bcodmo_name	String	height
attribute	Basal_damage	description	String	Height (cm) from the base of the colony to living tissue. This value is 0.0 for colonies that have no damage to their base.
attribute	Basal_damage	long_name	String	Basal Damage
attribute	Basal_damage	units	String	centimeters (cm)
variable	Damage		byte
attribute	Damage	_FillValue	byte	127
attribute	Damage	actual_range	byte	0, 4
attribute	Damage	bcodmo_name	String	sample_descrip
attribute	Damage	description	String	Field estimate of the proportion of tissue on the colony that has been damaged: 1,
attribute	Damage	long_name	String	Damage
attribute	Damage	units	String	unitless
variable	Cyphoma_present		byte
attribute	Cyphoma_present	_FillValue	byte	127
attribute	Cyphoma_present	actual_range	byte	0, 4
attribute	Cyphoma_present	bcodmo_name	String	sample_descrip
attribute	Cyphoma_present	description	String	Number of individuals per colony
attribute	Cyphoma_present	long_name	String	Cyphoma Present
attribute	Cyphoma_present	units	String	unitless
variable	Comments_1		String
attribute	Comments_1	bcodmo_name	String	comment
attribute	Comments_1	description	String	Notes and comments. C. gibbosum denotes the presence of Cyphoma giibbosum, a grazing snail that strips living tissue from octocoral colonies. Millepora present: Inicates millepora overgrowing naked axis. Cyanobacteria present: Indicates Cyanobacteria growing on the colony. aa2 is new Antillogorgia sp.
attribute	Comments_1	long_name	String	Comments 1
attribute	Comments_1	units	String	unitless
variable	Comments_2_sample_tag_number		String
attribute	Comments_2_sample_tag_number	bcodmo_name	String	comment
attribute	Comments_2_sample_tag_number	description	String	Notes and comments
attribute	Comments_2_sample_tag_number	long_name	String	Comments 2 Sample Tag Number
attribute	Comments_2_sample_tag_number	units	String	unitless

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.