ERDDAP > info > bcodmo_dataset_3993

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	[WS1005 cruise track] - Cruise track (1-min fixes; from R2R) from R/V F.G. Walton Smith cruise WS1005 from Miami to the Bahamas in 2010 (Were Protists the Beginning of the End for Stromatolites? )		F   I   M	background			BCO-DMO	bcodmo_dataset_3993

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	Original navigation and other data are available from the NSF R2R data catalog: [https://www.rvdata.us/search/cruise/WS1005](\\"https://www.rvdata.us/search/cruise/WS1005\\")
attribute	NC_GLOBAL	awards_0_award_nid	String	54952
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-0926421
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=0926421
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	WS1005 Cruise Track (1-min resolution) from Rolling Deck to Repository (R2R) R/V F.G. Walton Smith Chief Sci: Joan Bernhard (WHOI) Version: 09 July 2013
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	2013-07-09T20:03:09Z
attribute	NC_GLOBAL	date_modified	String	2019-11-12T20:32:53Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.3993.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-76.8221655
attribute	NC_GLOBAL	geospatial_lat_max	double	25.83778167
attribute	NC_GLOBAL	geospatial_lat_min	double	24.6997025
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-76.8221655
attribute	NC_GLOBAL	geospatial_lon_min	double	-80.19414733
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/3993
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, cog, course, data, dataset, date, date_utc, dmo, erddap, ground, iso, latitude, longitude, management, oceanography, office, over, preliminary, sog, speed, time, time_utc
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/3993/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/3993
attribute	NC_GLOBAL	Northernmost_Northing	double	25.83778167
attribute	NC_GLOBAL	param_mapping	String	{'3993': {'lat': 'master - latitude', 'lon': 'master - longitude', 'ISO_DateTime_UTC': 'master - time'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/3993/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	WHOI
attribute	NC_GLOBAL	people_0_person_name	String	Joan M. Bernhard
attribute	NC_GLOBAL	people_0_person_nid	String	51285
attribute	NC_GLOBAL	people_0_role	String	Chief Scientist
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	Shannon Rauch
attribute	NC_GLOBAL	people_1_person_nid	String	51498
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	Protists_Stromatolites
attribute	NC_GLOBAL	projects_0_acronym	String	Protists_Stromatolites
attribute	NC_GLOBAL	projects_0_description	String	Collaborative Research: Were Protists the Beginning of the End for Stromatolites? This award is funded under the American Recovery and Reinvestment Act of 2009 (Public Law 111-5). Microbial mats are conspicuous components of many benthic marine and aquatic settings. A subset of these microbial mats binds sediments to form potentially fossilizable structures, often called stromatolites or microbialites. While much is known about microbialite autotrophs, little is known about their heterotrophic eukaryotes. The lack of understanding is surprising given that stromatolites have an extensive geologic record spanning most of Earth's history. Stromatolites are layered sedimentary structures formed by a combination of microbial activities, abiotic carbonate precipitation, and sedimentary processes. Details of stromatolite formation and preservation are poorly understood, and a drastic decline in stromatolite occurrence and diversity in the late Precambrian has long been a conundrum. A popular hypothesis to explain this decline at ~1 billion years ago is that eukaryotic organisms evolved to become predators on stromatolites. To date, the most commonly proposed predatory culprit is an unidentified metazoan, although evidence of such an organism is lacking from the fossil record. Protists, most of which are not expected to leave an obvious fossil record, are additional possible stromatolitic predators, but they have been largely ignored in this context. The hypotheses of this project are: (1) Heterotrophic protist activity caused the textural change from stromatolites (layered sediment fabric) to thrombolites (clotted sediment fabric) and (2) Heterotrophic protists caused the decimation of Neoproterozoic stromatolites. Since it is impossible to recreate the Neoproterozoic, studies of modern analogs serve to indirectly test these hypotheses. The overall goal of this project is to describe the eukaryotic communities associated with modern stromatolites and thrombolites from the Bahamas and Australia, compare the communities from the two sites, and to relate the communities to stromatolitic / thrombolitic sediment fabric and biomarker signatures. The overall goal will be achieved by addressing the following specific aims: (1) Identify, via morphologic and molecular approaches, the eukaryotic community of modern stromatolites and thrombolites; (2) Analyze modern and fossil stromatolites and thrombolites for their eukaryotic lipid biomarkers using solvent extraction, chromatographic and mass spectrometric methods; (3) Using the Fluorescently Labeled Embedded Core (FLEC) method, document the sub-millimeter distributions of the heterotrophic eukaryotic community inhabiting modern stromatolites and thrombolites in conjunction with fine-scale sediment fabric; (4) Using solvent extraction, chromatographic and mass spectrometric methods, analyze cultures of allogromiid foraminifers to survey for lipid biomarkers unique to them; (5) After incubation of modern stromatolites with heterotrophic protists, use FLEC methodology to determine how their activity affects sediment fabric and conduct preliminary comparisons of these modern fabrics to those of stromatolite fossils. Intellectual Merit: The oldest fossil stromatolites are >3.4 billion years old and are the most visible manifestations of pervasive microbial life on the early Earth. The changes in stromatolite abundance and morphology document complex interplays between biological and geological processes. This project addresses multiple aspects of stromatolite genesis and pre-fossilization alteration but at its core, focuses on one of the greatest geological enigmas: the possible connection between stromatolite decline and the rise of complex life.
attribute	NC_GLOBAL	projects_0_end_date	String	2013-08
attribute	NC_GLOBAL	projects_0_geolocation	String	Highborne Cay, Bahamas and Carbla Station (Shark Bay), Western Australia
attribute	NC_GLOBAL	projects_0_name	String	Were Protists the Beginning of the End for Stromatolites?
attribute	NC_GLOBAL	projects_0_project_nid	String	2203
attribute	NC_GLOBAL	projects_0_start_date	String	2009-09
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	24.6997025
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	1-minute resolution navigation from the WS1005 cruise aboard the R/V F.G. Walton Smith from 18 March to 24 March 2010.
attribute	NC_GLOBAL	time_coverage_end	String	2010-03-24T20:23:00.388Z
attribute	NC_GLOBAL	time_coverage_start	String	2010-03-18T00:00:00.405Z
attribute	NC_GLOBAL	title	String	[WS1005 cruise track] - Cruise track (1-min fixes; from R2R) from R/V F.G. Walton Smith cruise WS1005 from Miami to the Bahamas in 2010 (Were Protists the Beginning of the End for Stromatolites? )
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-80.19414733
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	date_utc		int
attribute	date_utc	_FillValue	int	2147483647
attribute	date_utc	actual_range	int	20100318, 20100324
attribute	date_utc	bcodmo_name	String	date_utc
attribute	date_utc	description	String	Year, month, and day (UTC) in YYYYmmdd format.
attribute	date_utc	long_name	String	Date Utc
attribute	date_utc	units	String	unitless
variable	time_utc		String
attribute	time_utc	bcodmo_name	String	time_utc
attribute	time_utc	description	String	Time (UTC) in hours, minutes, and decimal minutes; 24-hour clock.
attribute	time_utc	long_name	String	Time Utc
attribute	time_utc	units	String	HHMM.mmmmm
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	24.6997025, 25.83778167
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 (-90 to 90 decimal degrees).
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	-80.19414733, -76.8221655
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 (-180 to 180 decimal degrees).
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	sog		float
attribute	sog	_FillValue	float	NaN
attribute	sog	actual_range	float	0.0, 6.05
attribute	sog	bcodmo_name	String	sog
attribute	sog	description	String	Instantaneous speed-over-ground (in meters per second); computed from single-differences of successive positions (from the current position to the next position).
attribute	sog	long_name	String	Speed Over Ground
attribute	sog	units	String	m/s
variable	cog		float
attribute	cog	_FillValue	float	NaN
attribute	cog	actual_range	float	0.0, 359.566
attribute	cog	bcodmo_name	String	cog
attribute	cog	description	String	Instantaneous course-over-ground measured in degrees clockwise from north.
attribute	cog	long_name	String	Course Over Ground
attribute	cog	units	String	degrees clockwise from North
variable	time		double
attribute	time	_CoordinateAxisType	String	Time
attribute	time	actual_range	double	1.268870400405E9, 1.269462180388E9
attribute	time	axis	String	T
attribute	time	bcodmo_name	String	ISO_DateTime_UTC
attribute	time	description	String	Date/Time (UTC) formatted to ISO8601 standard. T indicates start of time string; Z indicates UTC.
attribute	time	ioos_category	String	Time
attribute	time	long_name	String	ISO Date Time UTC
attribute	time	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/DTUT8601/
attribute	time	source_name	String	ISO_DateTime_UTC
attribute	time	standard_name	String	time
attribute	time	time_origin	String	01-JAN-1970 00:00:00
attribute	time	time_precision	String	1970-01-01T00:00:00.000Z
attribute	time	units	String	seconds since 1970-01-01T00:00:00Z

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.