ERDDAP > info > bcodmo_dataset_516670

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	Mesozooplankton community grazing for 5 size classes and total for samples collected by ring net tows on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project)		I   M	background			BCO-DMO	bcodmo_dataset_516670

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	Mesozooplankton net collections Mesozooplankton sampling was conducted using a standard 1-m2 ring net with 202-um Nitex mesh, towed obliquely for 20 min at a ship speed of 1-2 kts. A General Oceanics flowmeter was attached across the net mouth to record volume filtered, and a Vemco depth meter was fastened to the net frame to record tow depth and duration. The target depth of tows was 150m. Once on deck, the net was washed down with seawater and the contents of the cod end placed in a bucket with carbonated water to prevent gut evacuation. Separate splits (each of typically 1/8th of the sample) were used for biomass and gut-fluorescence determinations, with the latter done first to minimize pigment degradation. Each of these subsample splits was wet sieved into five size classes of 0.2-0.5, 0.5-1, 1-2, 2-5, and >5 mm. Gut pigment and grazing estimates Each size-fractioned sample for gut pigment analysis was concentrated onto a 47-mm 202-um Nitex filter and immediately frozen in liquid nitrogen for processing on shipboard or in the lab. The filters were subsampled for the three smallest size classes, by placing the frozen filters centered under a plastic template and sectioning into 8 pie-shaped fractions with a thin knife blade. Analyses were carried out in duplicate. The replicate 1/8th samples were ground in 90% acetone using a sonicator to extract pigments, and the homogenate was centrifuged to remove particulates. For the 2-5 mm size class, typically the whole sample was processed, although if very dense a smaller subsample was taken. The >5 mm size class was always processed in its entirety. Concentrations of chlorophyll a (Chl a) and phaeopigments (Phaeo) were then measured using a Turner 10AU fluorometer. For each size-fraction analyzed, the investigators computed the depth- integrated grazing rate (GR) using phaeopigments only to obtain conservative rates. The GR was calculated in the euphotic zone as: GR = [ (pig * D) / (vol * f) ] * K where GR is the grazing rate (ug m-2 h-1), pig is the measured pigment value (ug, based on phaeopigments), f is fraction of sample analyzed, D is depth of tow (m), vol is the volume of water filtered (m3), and K is the gut evacuation rate constant. For K, the investigators used the rate constant of 2.1 h-1 derived from shipboard gut evacuation experiments at 140\u00b0W during the JGOFS EqPac program, which had similar temperatures as those encountered in the CRD.
attribute	NC_GLOBAL	awards_0_award_nid	String	515386
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-0826626
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=0826626
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	Mesozooplankton Community Grazing PI: Michael Landry (UCSD-SIO) Contact: Moira Decima (UCSD-SIO) Version: 11 June 2014 Notes: time_of_day values: 1=day, 2=night. size_class: gt5 = greater than 5 mm.
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	2014-06-11T19:56:34Z
attribute	NC_GLOBAL	date_modified	String	2019-12-30T15:14:20Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.516670.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-86.735
attribute	NC_GLOBAL	geospatial_lat_max	double	10.3
attribute	NC_GLOBAL	geospatial_lat_min	double	6.628
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-86.735
attribute	NC_GLOBAL	geospatial_lon_min	double	-92.987
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	202.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	100.0
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/516670
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Ring Net
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Mesozooplankton sampling was conducted using a standard 1-m2 ring net with 202-um Nitex mesh, towed obliquely for 20 min at a ship speed of 1-2 kts.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	516693
attribute	NC_GLOBAL	instruments_0_description	String	A Ring Net is a generic plankton net, made by attaching a net of any mesh size to a metal ring of any diameter. There are 1 meter, .75 meter, .25 meter and .5 meter nets that are used regularly. The most common zooplankton ring net is 1 meter in diameter and of mesh size .333mm, also known as a 'meter net' (see Meter Net).
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/22/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Ring Net
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	444
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Ring Net
attribute	NC_GLOBAL	instruments_1_acronym	String	Turner Fluorometer -10AU
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Concentrations of chlorophyll a and phaeopigments were measured using a Turner 10AU fluorometer.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	516694
attribute	NC_GLOBAL	instruments_1_description	String	The Turner Designs 10-AU Field Fluorometer is used to measure Chlorophyll fluorescence. The 10AU Fluorometer can be set up for continuous-flow monitoring or discrete sample analyses. A variety of compounds can be measured using application-specific optical filters available from the manufacturer. (read more from Turner Designs, turnerdesigns.com, Sunnyvale, CA, USA)
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Turner Designs Fluorometer -10-AU
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	464
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Turner Fluorometer -10AU
attribute	NC_GLOBAL	instruments_2_acronym	String	Flow Meter
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	A General Oceanics flowmeter was attached across the ring net mouth to record volume filtered.
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	516692
attribute	NC_GLOBAL	instruments_2_description	String	General term for a sensor that quantifies the rate at which fluids (e.g. water or air) pass through sensor packages, instruments, or sampling devices. A flow meter may be mechanical, optical, electromagnetic, etc.
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/388/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Flow Meter
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	650
attribute	NC_GLOBAL	instruments_2_supplied_name	String	General Oceanics flowmeter
attribute	NC_GLOBAL	keywords	String	array, array-data, bco, bco-dmo, biological, chemical, class, comprehensive, cycle, data, dataset, date, date_local, day, depth, depth_tow, dmo, erddap, event, grazing, grazing_rate, large, latitude, local, longitude, management, oceanography, office, preliminary, rate, size, size_class, stewardship, system, time, time_local, time_of_day, tow
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/516670/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/516670
attribute	NC_GLOBAL	Northernmost_Northing	double	10.3
attribute	NC_GLOBAL	param_mapping	String	{'516670': {'lat': 'master - latitude', 'lon': 'master - longitude', 'depth_tow': 'flag - depth'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/516670/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of California-San Diego
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UCSD-SIO
attribute	NC_GLOBAL	people_0_person_name	String	Michael R. Landry
attribute	NC_GLOBAL	people_0_person_nid	String	50545
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 California-San Diego
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	UCSD-SIO
attribute	NC_GLOBAL	people_1_person_name	String	Moira Decima
attribute	NC_GLOBAL	people_1_person_nid	String	516499
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	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	CRD FLUZiE
attribute	NC_GLOBAL	projects_0_acronym	String	CRD FLUZiE
attribute	NC_GLOBAL	projects_0_description	String	Research was aimed at improved understanding of plankton dynamics, carbon and nutrient fluxes, and potential trace element limitation in the Costa Rica Dome region of the eastern tropical Pacific. The specific science objectives of the 2010 R/V Melville cruise (MV1008) were: 1) to assess grazing and trace metal/nutrient controls on primary production and phytoplankton standing stocks; 2) to quantify carbon and elemental fluxes and export rates from the euphotic zone; and 3) to measure microbial population, processes, stable isotope abundances associated with the OMZ and nitrite maxima. Additional information about MV1008 can be found in the cruise report (PDF). NOTE: The original proposal and award abstract are not relevant. The project was originally funded by NSF as experimental tests of phytoplankton controls in the Arabian Sea. Piracy concerns in the region led to the cancellation of the research cruise in 2009, and a Change of Scope request was approved to focus the project on related issues in the Costa Rica Dome (CRD). Though this project is not formally affiliated with any large program, it aligns with IMBER's emphasis on community ecology and biogeochemistry, and the OCB focus on carbon-based measurements of production, grazing and export processes.
attribute	NC_GLOBAL	projects_0_end_date	String	2013-12
attribute	NC_GLOBAL	projects_0_geolocation	String	Costa Rica Dome, Eastern Tropical Pacific Ocean
attribute	NC_GLOBAL	projects_0_name	String	Costa Rica Dome FLUx and Zinc Experiments
attribute	NC_GLOBAL	projects_0_project_nid	String	515387
attribute	NC_GLOBAL	projects_0_start_date	String	2009-01
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	6.628
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Mesozooplankton community grazing, expressed as ug pigment m-2 h-1, for 5 size classes (2-0.5, 0.5-1, 1-2, 2-5, and >5 mm) and total. Samples were collected during ring net tows on the MV1008 cruise in the Costa Rica Dome (CRD) region of the Eastern Tropical Pacific Ocean.
attribute	NC_GLOBAL	title	String	Mesozooplankton community grazing for 5 size classes and total for samples collected by ring net tows on R/V Melville cruise MV1008 in the Costa Rica Dome in 2010 (CRD FLUZiE project)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-92.987
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	event		short
attribute	event	_FillValue	short	32767
attribute	event	actual_range	short	14, 1109
attribute	event	bcodmo_name	String	event
attribute	event	description	String	Number referring to the particular activity (event) on the FluZiE cruise.
attribute	event	long_name	String	Event
attribute	event	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/EVTAGFL/
attribute	event	units	String	integer
variable	tow		byte
attribute	tow	_FillValue	byte	127
attribute	tow	actual_range	byte	1, 55
attribute	tow	bcodmo_name	String	tow
attribute	tow	description	String	Tow number.
attribute	tow	long_name	String	Tow
attribute	tow	units	String	integer
variable	cycle		String
attribute	cycle	bcodmo_name	String	unknown
attribute	cycle	description	String	Type and number of cruise sampling event. Either "Stn_n" or "Cycle_n". A transect of stations was sampled from 29 June to 03 July. Five quasi-Lagrangian experiments called "cycles" were conducted during the remainder of the cruise.
attribute	cycle	long_name	String	Cycle
attribute	cycle	units	String	text
variable	time_of_day		byte
attribute	time_of_day	_FillValue	byte	127
attribute	time_of_day	actual_range	byte	1, 2
attribute	time_of_day	bcodmo_name	String	time_of_day
attribute	time_of_day	description	String	Time of day. 1 = day; 2= night.
attribute	time_of_day	long_name	String	Time Of Day
attribute	time_of_day	units	String	code
variable	date_local		String
attribute	date_local	bcodmo_name	String	date_local
attribute	date_local	description	String	Date of tow (local time zone of UTC -6). in the format mmddyyyy
attribute	date_local	long_name	String	Date Local
attribute	date_local	units	String	unitless
variable	time_local		String
attribute	time_local	bcodmo_name	String	time_local
attribute	time_local	description	String	Time at start of tow (local time zone of UTC -6).
attribute	time_local	long_name	String	Time Local
attribute	time_local	units	String	HHMM
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	6.628, 10.3
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 in degrees 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	-92.987, -86.735
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 in degrees 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	100.0, 202.0
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	Depth of the tow.
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	size_class		String
attribute	size_class	bcodmo_name	String	unknown
attribute	size_class	description	String	Mesozooplankton size class. 0.2_to_0.5 = 02.-0.5 mm; 0.5_to_1 = 0.5-1 mm; 1_to_2 = 1-2 mm; 2_to_5 = 2-5 mm; gt5 = greater than 5 mm; total = total for all size classes.
attribute	size_class	long_name	String	Size Class
attribute	size_class	units	String	millimeters (mm)
variable	grazing_rate		float
attribute	grazing_rate	_FillValue	float	NaN
attribute	grazing_rate	actual_range	float	0.0, 755.2
attribute	grazing_rate	bcodmo_name	String	unknown
attribute	grazing_rate	description	String	Clearance rate of water column Chl a for mesozooplankton size classes based on the gut fluorescence method.
attribute	grazing_rate	long_name	String	Grazing Rate
attribute	grazing_rate	units	String	micrograms chlorophyll-a equivalents per square meter per hour (ug Chl a equiv m-2 h -1)

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.