ERDDAP > info > bcodmo_dataset_2389

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	[zooplankton abund biomass_MOC - nbp] - Zooplankton abundance and biomass from MOCNESS silhouettes, from the RVIB Nathaniel B. Palmer NBP0103, NBP0104 from the Southern Ocean, 2001- 2002 (SOGLOBEC project, Southern Ocean Krill project) (U.S. GLOBEC Southern Ocean)		F   I   M	background			BCO-DMO	bcodmo_dataset_2389

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	The MOCNESS-1 plankton sampler has nine rectangular nets (1m x 1.4 m) with a mesh size of 0.333 mm, which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976). Biomass (wet weight) and abundance were determined principally by silhouette digitization of taxa lengths and conversion to equivalent wet weights according to the equations and methods adapted from Davis and Wiebe (1985) and Wiebe et al. (2004). New formulas were calculated for Southern Ocean krill because the length-weight relationship (Wet Weight = 0.0054*Length3.214) differed from that of the North Atlantic euphausiids (Wet Weight = 0.0138*Length3.071; Davis and Wiebe, 1985). MOCNESS Sample Analysis\u00a0(from Ashjian et al., 2004) Silhouette photographs first were obtained from each sample; this photograph then was scanned with an Epson Expression 1600 scanner at 1200 dpi to produce a Tagged Image File Format (TIF) image. Identification and measurement of organisms from the tiff image were accomplished manually using the specialized MATLAB (Mathworks, Inc.) routine, the WHOI Silhouette DIGITIZER (v 1.0) (Little and Copley, 2003). A scanned photographic image of an aliquot of a sample was displayed with a superimposed reference grid on the computer screen. The operator identified each organism to taxonomic and/or size category by selecting the appropriate category button. Organism lengths (both straight and curved) then were measured by the operator using the cursor on the computer screen. Although the nominal resolution of the measurement is 0.02 mm, in practice the resolution was ~0.05 mm. In instances where there were too many organisms of a given type to justify measuring every individual organism, the DIGITIZER routine generated a list of randomly located cells to systematically sub-sample the overall image. Each organism's biomass was calculated automatically from its length measurement using the appropriate length-weight relationship. This is a graph of the vertical distribution of biomass from the Winter 2001 Cruise, NBP0103. Net 8 is closest to the surface and net 1 is deepest: This is a graph of the vertical distribution of biomass from the Winter 2001 Cruise, NBP0104: Figure 1. Map of Tow locations, Fall and Winter, 2001 Table 1. Summary of locations, times, and depths for the twelve net tows. (Note: Winter tows 14 and 15 were considered one tow because when ice and malfunction led to no data in the top three nets of Tow 14, MOC Tow 15 was fished in the upper 90 meters to compensate.) Cruise | Region | Tow \t\t\tNumber | Date | Time \t\t\t(Local) | Light* | Lat(S) | Lon(W) | Tow Depth(m) | Bottom Depth(m) | Ice Cover \t\t\t(tenths) ---|---|---|---|---|---|---|---|---|---|--- Fall | Offshore | 6 | 05/04/01 | 1332 | D | 66\u00a0 40.17 | 73 22.08 | 0-1001 | 3650 | 0 \u00a0 | Midshelf 1 | 1 | 04/30/01 | 2050 | N | 66 10.80 | 69 10.47 | 0-306 | 360 | 0 \u00a0 | Midshelf 2 | 3 | 05/02/01 | 0320 | N | 66 48.53 | 70 21.42 | 0-348 | 600 | 0 \u00a0 | Midshelf 3 | 12 | 05/13/01 | 1830 | N | 68\u00a0 23.62 | 72 18.44 | 0-356 | 400 | 0 \u00a0 | Midshelf 4 | 16 | 05/18/01 | 0854 | N | 68\u00a0 59.43 | 74 55.77 | 0-340 | 350 | 0 \u00a0 | Marguerite Bay | 24 | 05/29/01 | 0300 | N | 67 55.33 | 68 30.69 | 0-602 | 690 | 0 Winter | Offshore | 11 | 08/11/01 | 0918 | T | 67 14.69 | 74 25.27 | 0-989 | 2917 | 10 \u00a0 | Midshelf 1 | 17 | 08/26/01 | 0306 | N | 66 11.13 | 69 06.21 | 7-305 | 346 | 6 \u00a0 | Midshelf 2 | 4 | 07/31/01 | 0949 | D | 66 45.18 | 70 09.64 | 11-413 | 501 | 8 \u00a0 | Midshelf 3 | 13 | 08/17/01 | 2117 | N | 68 13.21 | 72 56.53 | 0-230 | 325 | 10 \u00a0 | Midshelf 4 | 14 | 08/21/01 | 1136 | D | 69 15.55 | 75 34.00 | 20-290 | ~340 | 7 \u00a0 | \u00a0 | 15 | 08/22/01 | 0327 | N | 69 12.30 | 75\u00a0 43.90 | 0-91 | ~350 | 9 \u00a0 | Marguerite Bay | 9 | 08/08/01 | 0215 | N | 67 53.74 | 68 10.82 | 0-488 | 600+ | 9 *Light conditions are designated as: \"D\" = day, sunlight present; \"N\" = night, darkness; \"T\" = twilight
attribute	NC_GLOBAL	awards_0_award_nid	String	54773
attribute	NC_GLOBAL	awards_0_award_number	String	ANT-9910307
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=9910307
attribute	NC_GLOBAL	awards_0_funder_name	String	NSF Antarctic Sciences
attribute	NC_GLOBAL	awards_0_funding_acronym	String	NSF ANT
attribute	NC_GLOBAL	awards_0_funding_source_nid	String	369
attribute	NC_GLOBAL	awards_0_program_manager	String	Dr Roberta Marinelli
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	51469
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Zooplankton Biomass and Abundance from MOCNESS tows using silhouette analysis. C. Ashjian and N. Copley, SIs note: see Documentation for maps of tow locations, other important data and supporting information
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	2010-06-16T20:40:39Z
attribute	NC_GLOBAL	date_modified	String	2019-02-06T18:43:14Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.2389.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-65.5287
attribute	NC_GLOBAL	geospatial_lat_max	double	-65.1467
attribute	NC_GLOBAL	geospatial_lat_min	double	-69.243
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-65.5287
attribute	NC_GLOBAL	geospatial_lon_min	double	-75.7317
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	800.0
attribute	NC_GLOBAL	geospatial_vertical_min	double	0.0
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/2389
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	MOC1
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	The MOCNESS-1 plankton sampler has nine rectangular nets (1m x 1.4 m) with a mesh size of 0.333 mm, which are opened and closed sequentially by commands through conducting cable from the surface (Wiebe et al., 1976).
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	4151
attribute	NC_GLOBAL	instruments_0_description	String	The Multiple Opening/Closing Net and Environmental Sensing System or MOCNESS is a family of net systems based on the Tucker Trawl principle. The MOCNESS-1 carries nine 1-m2 nets usually of 335 micrometer mesh and is intended for use with the macrozooplankton. All nets are black to reduce contrast with the background. A motor/toggle release assembly is mounted on the top portion of the frame and stainless steel cables with swaged fittings are used to attach the net bar to the toggle release. A stepping motor in a pressure compensated case filled with oil turns the escapement crankshaft of the toggle release which sequentially releases the nets to an open then closed position on command from the surface. -- from the MOCNESS Operations Manual (1999 + 2003).
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/NETT0097/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	MOCNESS1
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	437
attribute	NC_GLOBAL	instruments_0_supplied_name	String	MOCNESS1
attribute	NC_GLOBAL	keywords	String	abundance, abundance_total, bco, bco-dmo, biological, biomass, biomass_total, chemical, cruiseid, data, dataset, depth, depth_close, depth_mid, depth_open, depth_w, dmo, erddap, latitude, longitude, management, net, oceanography, office, preliminary, taxon, total, tow, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/2389/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/2389
attribute	NC_GLOBAL	Northernmost_Northing	double	-65.1467
attribute	NC_GLOBAL	param_mapping	String	{'2389': {'lat': 'master - latitude', 'lon': 'master - longitude', 'depth_close': 'flag - depth'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/2389/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	Carin J. Ashjian
attribute	NC_GLOBAL	people_0_person_nid	String	50381
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	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	WHOI
attribute	NC_GLOBAL	people_1_person_name	String	Peter H. Wiebe
attribute	NC_GLOBAL	people_1_person_nid	String	50454
attribute	NC_GLOBAL	people_1_role	String	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
attribute	NC_GLOBAL	people_2_person_name	String	Nancy Copley
attribute	NC_GLOBAL	people_2_person_nid	String	50396
attribute	NC_GLOBAL	people_2_role	String	Technician
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	Nancy Copley
attribute	NC_GLOBAL	people_3_person_nid	String	50396
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	SOGLOBEC,Southern Ocean Krill
attribute	NC_GLOBAL	projects_0_acronym	String	SOGLOBEC
attribute	NC_GLOBAL	projects_0_description	String	The fundamental objectives of United States Global Ocean Ecosystems Dynamics (U.S. GLOBEC) Program are dependent upon the cooperation of scientists from several disciplines. Physicists, biologists, and chemists must make use of data collected during U.S. GLOBEC field programs to further our understanding of the interplay of physics, biology, and chemistry. Our objectives require quantitative analysis of interdisciplinary data sets and, therefore, data must be exchanged between researchers. To extract the full scientific value, data must be made available to the scientific community on a timely basis.
attribute	NC_GLOBAL	projects_0_geolocation	String	Southern Ocean
attribute	NC_GLOBAL	projects_0_name	String	U.S. GLOBEC Southern Ocean
attribute	NC_GLOBAL	projects_0_project_nid	String	2039
attribute	NC_GLOBAL	projects_0_project_website	String	http://www.ccpo.odu.edu/Research/globec_menu.html
attribute	NC_GLOBAL	projects_0_start_date	String	2001-01
attribute	NC_GLOBAL	projects_1_acronym	String	Southern Ocean Krill
attribute	NC_GLOBAL	projects_1_description	String	The U.S. Global Ocean Ecosystems Dynamics (U.S. GLOBEC) program has the goal of understanding and ultimately predicting how populations of marine animal species respond to natural and anthropogenic changes in climate. Research in the Southern Ocean (SO) indicates strong coupling between climatic processes and ecosystem dynamics via the annual formation and destruction of sea ice. The Southern Ocean GLOBEC Program (SO GLOBEC) will investigate the dynamic relationship between physical processes and ecosystem responses through identification of critical parameters that affect the distribution, abundance and population dynamics of target species. The overall goals of the SO GLOBEC program are to elucidate shelf circulation processes and their effect on sea ice formation and krill distribution, and to examine the factors which govern krill survivorship and availability to higher trophic levels, including penguins, seals and whales. The focus of the U.S. contribution to the international SO GLOBEC program will be on winter processes. This component will focus on juvenile and adult krill and mesozooplankton prey distribution and abundance using a sophisticated instrument package, BIOMAPPER II, which is equipped with an acoustic backscatter sonar system, a video plankton recorder and an environmental sensor system. The system is used in large-scale studies. Additionally, a remotely-operative vehicle will be used to map the distribution and behavior of krill under ice. The result of the integrated SO GLOBEC program will be to improve the predictability of living marine resources, especially with respect to local and global climatic shifts.
attribute	NC_GLOBAL	projects_1_end_date	String	2005-09
attribute	NC_GLOBAL	projects_1_geolocation	String	Southern Ocean
attribute	NC_GLOBAL	projects_1_name	String	GLOBEC: Winter Distribution and Success of Southern Ocean Krill
attribute	NC_GLOBAL	projects_1_project_nid	String	616193
attribute	NC_GLOBAL	projects_1_start_date	String	2000-10
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	-69.243
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Zooplankton abundance and biomass from MOCNESS silhouettes, from the RVIB Nathaniel B. Palmer NBP0103, NBP0104 from the Southern Ocean, austral fall and winter, 2001-2002
attribute	NC_GLOBAL	title	String	[zooplankton abund biomass_MOC - nbp] - Zooplankton abundance and biomass from MOCNESS silhouettes, from the RVIB Nathaniel B. Palmer NBP0103, NBP0104 from the Southern Ocean, 2001-2002 (SOGLOBEC project, Southern Ocean Krill project) (U.S. GLOBEC Southern Ocean)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-75.7317
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	cruiseid		String
attribute	cruiseid	bcodmo_name	String	cruiseid
attribute	cruiseid	description	String	Cruise Identifier (e.g., LMG0103, NPB0104)
attribute	cruiseid	long_name	String	Cruiseid
variable	year		short
attribute	year	_FillValue	short	32767
attribute	year	actual_range	short	2001, 2002
attribute	year	bcodmo_name	String	year
attribute	year	description	String	year of cruise
attribute	year	long_name	String	Year
attribute	year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
variable	tow		byte
attribute	tow	_FillValue	byte	127
attribute	tow	actual_range	byte	1, 24
attribute	tow	bcodmo_name	String	tow
attribute	tow	description	String	tow number
attribute	tow	long_name	String	Tow
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	-69.243, -65.1467
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, negative = South
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	-75.7317, -65.5287
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, negative = West
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_w		short
attribute	depth_w	_FillValue	short	32767
attribute	depth_w	actual_range	short	242, 3650
attribute	depth_w	bcodmo_name	String	depth_w
attribute	depth_w	colorBarMaximum	double	8000.0
attribute	depth_w	colorBarMinimum	double	-8000.0
attribute	depth_w	colorBarPalette	String	TopographyDepth
attribute	depth_w	description	String	depth of water at the start of tow
attribute	depth_w	long_name	String	Depth
attribute	depth_w	standard_name	String	depth
attribute	depth_w	units	String	meters
variable	net		byte
attribute	net	_FillValue	byte	127
attribute	net	actual_range	byte	1, 8
attribute	net	bcodmo_name	String	net
attribute	net	description	String	net number (0-8)
attribute	net	long_name	String	Net
variable	depth_open		short
attribute	depth_open	_FillValue	short	32767
attribute	depth_open	actual_range	short	20, 1000
attribute	depth_open	bcodmo_name	String	depth_open
attribute	depth_open	colorBarMaximum	double	8000.0
attribute	depth_open	colorBarMinimum	double	-8000.0
attribute	depth_open	colorBarPalette	String	TopographyDepth
attribute	depth_open	description	String	depth where net is opened
attribute	depth_open	long_name	String	Depth
attribute	depth_open	standard_name	String	depth
attribute	depth_open	units	String	meters
variable	depth		double
attribute	depth	_CoordinateAxisType	String	Height
attribute	depth	_CoordinateZisPositive	String	down
attribute	depth	_FillValue	double	NaN
attribute	depth	actual_range	double	0.0, 800.0
attribute	depth	axis	String	Z
attribute	depth	bcodmo_name	String	depth_close
attribute	depth	colorBarMaximum	double	8000.0
attribute	depth	colorBarMinimum	double	-8000.0
attribute	depth	colorBarPalette	String	TopographyDepth
attribute	depth	description	String	depth where net is closed
attribute	depth	ioos_category	String	Location
attribute	depth	long_name	String	Depth
attribute	depth	positive	String	down
attribute	depth	standard_name	String	depth
attribute	depth	units	String	m
variable	depth_mid		float
attribute	depth_mid	_FillValue	float	NaN
attribute	depth_mid	actual_range	float	10.0, 900.0
attribute	depth_mid	bcodmo_name	String	depth_mid
attribute	depth_mid	colorBarMaximum	double	8000.0
attribute	depth_mid	colorBarMinimum	double	-8000.0
attribute	depth_mid	colorBarPalette	String	TopographyDepth
attribute	depth_mid	description	String	mid-depth of tow
attribute	depth_mid	long_name	String	Depth
attribute	depth_mid	standard_name	String	depth
attribute	depth_mid	units	String	meters
variable	abundance_total		float
attribute	abundance_total	_FillValue	float	NaN
attribute	abundance_total	actual_range	float	0.4561, 5164.0
attribute	abundance_total	bcodmo_name	String	abundance
attribute	abundance_total	description	String	total number of all taxa counted
attribute	abundance_total	long_name	String	Abundance Total
attribute	abundance_total	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/B070/
attribute	abundance_total	units	String	no. per cubic meter per net
variable	biomass_total		String
attribute	biomass_total	bcodmo_name	String	biomass_total
attribute	biomass_total	description	String	total wet weight of zooplankton in net
attribute	biomass_total	long_name	String	Biomass Total
attribute	biomass_total	units	String	milligrams per meter3
variable	taxon		String
attribute	taxon	bcodmo_name	String	taxon
attribute	taxon	description	String	scientific name or common name of organism or group
attribute	taxon	long_name	String	Taxon
variable	abundance		float
attribute	abundance	_FillValue	float	NaN
attribute	abundance	actual_range	float	0.0, 1840.0
attribute	abundance	bcodmo_name	String	unknown
attribute	abundance	description	String	number of the specific taxa counted
attribute	abundance	long_name	String	Abundance
attribute	abundance	units	String	no. per meter3pernet
variable	biomass		String
attribute	biomass	bcodmo_name	String	biomass
attribute	biomass	description	String	wet weight of the specific taxa in the net
attribute	biomass	long_name	String	Biomass
attribute	biomass	units	String	milligrams per meter3

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.