ERDDAP > info > bcodmo_dataset_4018

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	[ciliate abundance and biomass] - Abundance and biomass of ciliates from inverted microscope counts from samples taken on R/V Atlantic Explorer cruises AE1102, AE1118, AE1206, AE1219 in the Sargasso Sea, Bermuda Atlantic Time-Series Station in 2011-2012 (Trophic BATS project) (Plankton Community Composition and Trophic Interactions as Modifiers of Carbon Export in the Sargasso Sea )		F   I   M	background			BCO-DMO	bcodmo_dataset_4018

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	Water Column Sampling: Water column sampling was performed on four cruises during the spring and the summer of 2011 and 2012 at the Bermuda Atlantic Time-series Study station (31\u201940\u00b0N 64\u201910\u00b0W, BATS) and in the mesoscale eddies found in the surrounding area of the Sargasso Sea. For each cruise, 2 stations were sampled, usually in the center of a mesoscale eddy and at BATS. The edge of the eddy was sample two times, as well. To be able to get a better reproducibility of data, each experiment was replicated. For each experiment, seawater samples were collected pre-dawn (on deck 2:30-4:00, local time) at four different depths within the euphotic zone (20m, 50m, 80m and the Deep Chlorophyll Maximum, DCM). Twenty-one 10L Niskin bottles were attached to a rosette with conductivity, temperature, depth sensors (CTD), and an in vivo fluorometer. This sensor allowed for recording in real time of chlorophyll fluorescence and the DCM for each station. The water that was collected from the 10L Niskin bottles was sampled for abundance and biomass of the plankton community. Microscopy Analyses: Inverted microscopy was used to determine abundance and biomass of planktonic ciliates. Seawater was collected into 200ml amber glass bottles which had previously been supplied with 2.5% of Lugol\u2019s dye (v/v). Samples were stored in the dark and at room temperature onboard ship and in the laboratory at ASU. 100 ml of sample were settled onto settling chambers for 48hr according to the Uterm\u00f6hl method (Uterm\u00f6hl, 1931). A Nikon Elipse TE300 inverted microscope was used at 40x magnification to count the entire slide and all the ciliates found were measured and classified based on the classification system introduced by Agatha (2004) and Agatha & Struder- Kypke (2007). Ciliates were classified into 4 standard shapes: prolate spheroid, sphere, cone, cone + half sphere. Biomass calculations were done for each category of organism counted. Biovolume for each group was determined based on size and shape of the organism by approximating the closest geometric shape (Hillebrand et al. 1999) and then converted into units of carbon based on the carbon to volume ratio (Menden-Deuer and Lessard 2000). To determine the carbon biomass of the ciliates, carbon to volume conversion factors were used, as in Putt and Stoecker (1989). The 95% confidence intervals were calculated according to Lund et al. (1958).
attribute	NC_GLOBAL	awards_0_award_nid	String	55163
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1030476
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=1030476&HistoricalAwards=false
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	Abundance and biomass of ciliates based on inverted microscope counts PI: Susanne Neuer (Arizona State U.) Version: 22 Aug 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	2013-08-22T15:43:29Z
attribute	NC_GLOBAL	date_modified	String	2019-08-05T18:55:51Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.4018.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-64.17
attribute	NC_GLOBAL	geospatial_lat_max	double	33.48
attribute	NC_GLOBAL	geospatial_lat_min	double	30.83
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-64.17
attribute	NC_GLOBAL	geospatial_lon_min	double	-64.83
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	100.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	20.0
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/4018
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Niskin bottle
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Samples were collected using 10-Liter Niskin bottles attached to a CTD rosette.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	6242
attribute	NC_GLOBAL	instruments_0_description	String	A Niskin bottle (a next generation water sampler based on the Nansen bottle) is a cylindrical, non-metallic water collection device with stoppers at both ends. The bottles can be attached individually on a hydrowire or deployed in 12, 24 or 36 bottle Rosette systems mounted on a frame and combined with a CTD. Niskin bottles are used to collect discrete water samples for a range of measurements including pigments, nutrients, plankton, etc.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/TOOL0412/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Niskin bottle
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	413
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Niskin bottle
attribute	NC_GLOBAL	instruments_1_acronym	String	Inverted Microscope
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Ciliate abundance and biomass was determined using bright-field inverted microscopy (Amacher et al. 2009; Neuer and Cowles 1994). A Nikon Elipse TE300 inverted microscope was used at 40x magnification to count the entire slide.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	6243
attribute	NC_GLOBAL	instruments_1_description	String	An inverted microscope is a microscope with its light source and condenser on the top, above the stage pointing down, while the objectives and turret are below the stage pointing up. It was invented in 1850 by J. Lawrence Smith, a faculty member of Tulane University (then named the Medical College of Louisiana). Inverted microscopes are useful for observing living cells or organisms at the bottom of a large container (e.g. a tissue culture flask) under more natural conditions than on a glass slide, as is the case with a conventional microscope. Inverted microscopes are also used in micromanipulation applications where space above the specimen is required for manipulator mechanisms and the microtools they hold, and in metallurgical applications where polished samples can be placed on top of the stage and viewed from underneath using reflecting objectives. The stage on an inverted microscope is usually fixed, and focus is adjusted by moving the objective lens along a vertical axis to bring it closer to or further from the specimen. The focus mechanism typically has a dual concentric knob for coarse and fine adjustment. Depending on the size of the microscope, four to six objective lenses of different magnifications may be fitted to a rotating turret known as a nosepiece. These microscopes may also be fitted with accessories for fitting still and video cameras, fluorescence illumination, confocal scanning and many other applications.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB05/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Inverted Microscope
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	675
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Inverted Microscope
attribute	NC_GLOBAL	keywords	String	95pcnt, abund, abund_lower_95pcnt_CI, abund_upper_95pcnt_CI, abundance, bco, bco-dmo, biological, biomass, cast, chemical, cruise, cruise_id, data, dataset, depth, description, dmo, erddap, latitude, location_description, longitude, lower, management, oceanography, office, preliminary, station, taxon, total, total_biomass, upper
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/4018/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/4018
attribute	NC_GLOBAL	Northernmost_Northing	double	33.48
attribute	NC_GLOBAL	param_mapping	String	{'4018': {'lat': 'master - latitude', 'depth': 'flag - depth', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/4018/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Arizona State University
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	ASU
attribute	NC_GLOBAL	people_0_person_name	String	Susanne Neuer
attribute	NC_GLOBAL	people_0_person_nid	String	51336
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	Arizona State University
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	ASU
attribute	NC_GLOBAL	people_1_person_name	String	Francesca De Martini
attribute	NC_GLOBAL	people_1_person_nid	String	51719
attribute	NC_GLOBAL	people_1_role	String	Student
attribute	NC_GLOBAL	people_1_role_type	String	related
attribute	NC_GLOBAL	people_2_affiliation	String	Arizona State University
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	ASU
attribute	NC_GLOBAL	people_2_person_name	String	Susanne Neuer
attribute	NC_GLOBAL	people_2_person_nid	String	51336
attribute	NC_GLOBAL	people_2_role	String	Contact
attribute	NC_GLOBAL	people_2_role_type	String	related
attribute	NC_GLOBAL	people_3_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_3_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_3_person_name	String	Shannon Rauch
attribute	NC_GLOBAL	people_3_person_nid	String	51498
attribute	NC_GLOBAL	people_3_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_3_role_type	String	related
attribute	NC_GLOBAL	project	String	Trophic BATS
attribute	NC_GLOBAL	projects_0_acronym	String	Trophic BATS
attribute	NC_GLOBAL	projects_0_description	String	Fluxes of particulate carbon from the surface ocean are greatly influenced by the size, taxonomic composition and trophic interactions of the resident planktonic community. Large and/or heavily-ballasted phytoplankton such as diatoms and coccolithophores are key contributors to carbon export due to their high sinking rates and direct routes of export through large zooplankton. The potential contributions of small, unballasted phytoplankton, through aggregation and/or trophic re-packaging, have been recognized more recently. This recognition comes as direct observations in the field show unexpected trends. In the Sargasso Sea, for example, shallow carbon export has increased in the last decade but the corresponding shift in phytoplankton community composition during this time has not been towards larger cells like diatoms. Instead, the abundance of the picoplanktonic cyanobacterium, Synechococccus, has increased significantly. The trophic pathways that link the increased abundance of Synechococcus to carbon export have not been characterized. These observations helped to frame the overarching research question, "How do plankton size, community composition and trophic interactions modify carbon export from the euphotic zone". Since small phytoplankton are responsible for the majority of primary production in oligotrophic subtropical gyres, the trophic interactions that include them must be characterized in order to achieve a mechanistic understanding of the function of the biological pump in the oligotrophic regions of the ocean. This requires a complete characterization of the major organisms and their rates of production and consumption. Accordingly, the research objectives are: 1) to characterize (qualitatively and quantitatively) trophic interactions between major plankton groups in the euphotic zone and rates of, and contributors to, carbon export and 2) to develop a constrained food web model, based on these data, that will allow us to better understand current and predict near-future patterns in export production in the Sargasso Sea. The investigators will use a combination of field-based process studies and food web modeling to quantify rates of carbon exchange between key components of the ecosystem at the Bermuda Atlantic Time-series Study (BATS) site. Measurements will include a novel DNA-based approach to characterizing and quantifying planktonic contributors to carbon export. The well-documented seasonal variability at BATS and the occurrence of mesoscale eddies will be used as a natural laboratory in which to study ecosystems of different structure. This study is unique in that it aims to characterize multiple food web interactions and carbon export simultaneously and over similar time and space scales. A key strength of the proposed research is also the tight connection and feedback between the data collection and modeling components. Characterizing the complex interactions between the biological community and export production is critical for predicting changes in phytoplankton species dominance, trophic relationships and export production that might occur under scenarios of climate-related changes in ocean circulation and mixing. The results from this research may also contribute to understanding of the biological mechanisms that drive current regional to basin scale variability in carbon export in oligotrophic gyres.
attribute	NC_GLOBAL	projects_0_end_date	String	2014-09
attribute	NC_GLOBAL	projects_0_geolocation	String	Sargasso Sea, BATS site
attribute	NC_GLOBAL	projects_0_name	String	Plankton Community Composition and Trophic Interactions as Modifiers of Carbon Export in the Sargasso Sea
attribute	NC_GLOBAL	projects_0_project_nid	String	2150
attribute	NC_GLOBAL	projects_0_start_date	String	2010-10
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	30.83
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Abundance and biomass of ciliates from inverted microscope counts from samples taken on R/V Atlantic Explorer cruises AE1102, AE1118, AE1206, AE1219 in the Sargasso Sea, Bermuda Atlantic Time-Series Station in 2011-2012.
attribute	NC_GLOBAL	title	String	[ciliate abundance and biomass] - Abundance and biomass of ciliates from inverted microscope counts from samples taken on R/V Atlantic Explorer cruises AE1102, AE1118, AE1206, AE1219 in the Sargasso Sea, Bermuda Atlantic Time-Series Station in 2011-2012 (Trophic BATS project) (Plankton Community Composition and Trophic Interactions as Modifiers of Carbon Export in the Sargasso Sea )
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-64.83
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	cruise_id		String
attribute	cruise_id	bcodmo_name	String	cruise_id
attribute	cruise_id	description	String	Official cruise identifier e.g. AE1102 = R/V Atlantic Explorer cruise number 1102.
attribute	cruise_id	long_name	String	Cruise Id
attribute	cruise_id	units	String	dimensionless
variable	cast		byte
attribute	cast	_FillValue	byte	127
attribute	cast	actual_range	byte	2, 38
attribute	cast	bcodmo_name	String	cast
attribute	cast	description	String	Cast number.
attribute	cast	long_name	String	Cast
attribute	cast	units	String	dimensionless
variable	station		byte
attribute	station	_FillValue	byte	127
attribute	station	actual_range	byte	1, 6
attribute	station	bcodmo_name	String	station
attribute	station	description	String	Station number.
attribute	station	long_name	String	Station
attribute	station	units	String	dimensionless
variable	location_description		String
attribute	location_description	bcodmo_name	String	site_descrip
attribute	location_description	description	String	Description of sampling location.
attribute	location_description	long_name	String	Location Description
attribute	location_description	units	String	dimensionless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	30.83, 33.48
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. Positive values = North.
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	-64.83, -64.17
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. Positive values = East.
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	20.0, 100.0
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	Sample depth.
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	total_biomass		short
attribute	total_biomass	_FillValue	short	32767
attribute	total_biomass	actual_range	short	0, 2957
attribute	total_biomass	bcodmo_name	String	biomass_C
attribute	total_biomass	description	String	Total biomass (ng C/L) at the particular cast and depth.
attribute	total_biomass	long_name	String	Total Biomass
attribute	total_biomass	units	String	nanograms C per Liter
variable	taxon		String
attribute	taxon	bcodmo_name	String	taxon
attribute	taxon	description	String	Name of the taxonomic group.
attribute	taxon	long_name	String	Taxon
attribute	taxon	units	String	dimensionless
variable	abundance		short
attribute	abundance	_FillValue	short	32767
attribute	abundance	actual_range	short	0, 3090
attribute	abundance	bcodmo_name	String	abundance
attribute	abundance	description	String	Abundance of planktonic ciliates (cells/L).
attribute	abundance	long_name	String	Abundance
attribute	abundance	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/B070/
attribute	abundance	units	String	cells per Liter
variable	abund_upper_95pcnt_CI		short
attribute	abund_upper_95pcnt_CI	_FillValue	short	32767
attribute	abund_upper_95pcnt_CI	actual_range	short	5, 1414
attribute	abund_upper_95pcnt_CI	bcodmo_name	String	unknown
attribute	abund_upper_95pcnt_CI	description	String	Upper 95% confidence interval for abundance.
attribute	abund_upper_95pcnt_CI	long_name	String	Abund Upper 95pcnt CI
attribute	abund_upper_95pcnt_CI	units	String	cells per Liter
variable	abund_lower_95pcnt_CI		short
attribute	abund_lower_95pcnt_CI	_FillValue	short	32767
attribute	abund_lower_95pcnt_CI	actual_range	short	0, 1270
attribute	abund_lower_95pcnt_CI	bcodmo_name	String	unknown
attribute	abund_lower_95pcnt_CI	description	String	Lower 95% confidence interval for abundance.
attribute	abund_lower_95pcnt_CI	long_name	String	Abund Lower 95pcnt CI
attribute	abund_lower_95pcnt_CI	units	String	cells per Liter
variable	biomass		short
attribute	biomass	_FillValue	short	32767
attribute	biomass	actual_range	short	0, 1497
attribute	biomass	bcodmo_name	String	biomass_C
attribute	biomass	description	String	Biomass (ng C/L) of planktonic ciliates.
attribute	biomass	long_name	String	Biomass
attribute	biomass	units	String	nanograms C per Liter

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.