ERDDAP > info > bcodmo_dataset_521596

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	[DeZoZoo Cruise Data] - Sampling data from Gelatinous Zooplankton project from R/V Hugh R. Sharp multiple cruises in Chesapeake Bay from 2010-2011 (DeZoZoo project) (Hypoxia in Marine Ecosystems: Implications for Neritic Copepods)		F   I   M	background			BCO-DMO	bcodmo_dataset_521596

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	""
attribute	NC_GLOBAL	awards_0_award_nid	String	518410
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-0961924
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward?AWD_ID=0961924
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	Master DeZoZoo Database Cruise Log Note: South station near mouth of Rappohannock River North station near mouth of Choptank River
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	2014-08-07T20:11:50Z
attribute	NC_GLOBAL	date_modified	String	2017-06-30T17:55:52Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.687984
attribute	NC_GLOBAL	Easternmost_Easting	double	-76.194
attribute	NC_GLOBAL	geospatial_lat_max	double	38.582
attribute	NC_GLOBAL	geospatial_lat_min	double	37.708
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-76.194
attribute	NC_GLOBAL	geospatial_lon_min	double	-762532.67
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	geospatial_vertical_max	double	18.0
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/521596
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Tucker Trawl
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Gelatinous zooplankton samples were collected with a 280 micron-meshed Tucker Trawl.
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	521606
attribute	NC_GLOBAL	instruments_0_description	String	The original Tucker Trawl, a net with a rectangular mouth opening first built in 1951 by G.H. Tucker, was not an opening/closing system, but shortly thereafter it was modified so that it could be opened and closed.  The original had a 183 cm by 183 cm flexible rectangular mouth opening 914 cm long net with 1.8 cm stretched mesh for the first 457 cm and 1.3 cm mesh for last 457 cm. 152 cm of coarse plankton or muslin netting lined the end of the net. Tucker designed the net to collect animals associated with the deep scattering layers, principally euphausiids, siphonophores, and midwater fish. (from Wiebe and Benfield, 2003). Currently used Tucker Trawls usually have 1-m2 openings and can have a single net or multiple nets on the frame.
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/NETT0161/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Tucker Trawl
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	450
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Tucker Trawl
attribute	NC_GLOBAL	instruments_1_acronym	String	MOCNESS
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	521607
attribute	NC_GLOBAL	instruments_1_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. There are currently 8 different sizes of MOCNESS in existence which are designed for capture of different size ranges of zooplankton and micro-nekton Each system is designated according to the size of the net mouth opening and in two cases, the number of nets it carries. The original MOCNESS (Wiebe et al, 1976) was a redesigned and improved version of a system described by Frost and McCrone (1974).(from MOCNESS manual) This designation is used when the specific type of MOCNESS (number and size of nets) was not specified by the contributing investigator.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/NETT0097/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	MOCNESS
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	511
attribute	NC_GLOBAL	instruments_1_supplied_name	String	MOCNESS
attribute	NC_GLOBAL	keywords	String	accuracy, bco, bco-dmo, biological, cast, chemical, comments, cruise, cruise_official, data, dataset, date, day, day_local, depth, depth_end_nom, depth_relative, depth_start_nom, dmo, duration, erddap, filt, gear, iso, ISO_DateTime_Local, latitude, local, longitude, management, mean, mesh, month, month_local, net, O2, O2_mg_L_mean, occupation, oceanography, office, official, oxygen, preliminary, preservation, sample, sample_ID, station, time, time_accuracy, time_local, tow, tow_duration, vol, vol_filt, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/521596/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/521596
attribute	NC_GLOBAL	Northernmost_Northing	double	38.582
attribute	NC_GLOBAL	param_mapping	String	{'521596': {'lat': 'master - latitude', 'depth_end_nom': 'master - depth', 'lon': 'master - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/521596/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Maryland Center for Environmental Science
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UMCES/HPL
attribute	NC_GLOBAL	people_0_person_name	String	James J. Pierson
attribute	NC_GLOBAL	people_0_person_nid	String	51109
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	Yale University
attribute	NC_GLOBAL	people_1_person_name	String	Mary Beth Decker
attribute	NC_GLOBAL	people_1_person_nid	String	518408
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	Ms Dicky Allison
attribute	NC_GLOBAL	people_2_person_nid	String	50382
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	DeZoZoo
attribute	NC_GLOBAL	projects_0_acronym	String	DeZoZoo
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF award abstract: The occurrence of low-oxygen waters, often called "dead zones" in coastal ecosystems throughout the world is increasing. Despite these increases, the pelagic food-web consequences of low-oxygen waters remain poorly understood. Laboratory research has demonstrated that hypoxic water (< 2 mg l-1) can result in mortality, reduced fitness and lower egg production of planktonic copepods, a major link in food webs supporting pelagic fish. Observations in the sea indicate that hypoxic bottom waters usually have depressed abundances of copepods compared to normoxic waters (> 2 mg l-1). The gradient of declining oxygen concentration with respect to depth (oxycline) can be a critical interface in coastal pelagic ecosystems by altering the migratory behavior and depth distribution of copepods and their spatial coherence with potential predators and prey. This project will result in a mechanistic understanding of how behavior and fitness of copepods are affected by hypoxia. The PIs will compare bottom-up and top-down controls on the ecology of copepods in Chesapeake Bay waters experiencing seasonal hypoxia and those that are normoxic. Specific objectives of this project are to: 1) analyze changes in migratory behavior and fine-scale (meter) distribution of copepods across the oxycline over hourly and diel time scales while simultaneously examining the distribution and abundance of their food (phytoplankton and microzooplankton) and predators (fish, gelatinous zooplankton); 2) estimate effects of hypoxia on the "fitness" of copepods using a suite of measurements (length/weight ratios, feeding, egg production, and egg hatching success) to develop condition indices of copepods captured at different times and depths in hypoxic and normoxic waters; and 3) evaluate effects of hypoxia on copepod mortality by hypoxia-induced, stage-specific copepod mortality in hypoxic bottom waters and by changes in top-down control of copepods from predation by fish and gelatinous zooplankton. Oxyclines may be a barrier to vertical migration of copepods and thus disruptive to predator avoidance behavior. Faced with increased predation risk from fish and jellyfish, copepods may seek refuge in hypoxic waters for part of the day and/or make short-term vertical excursions between hypoxic and normoxic waters. By regulating vertical migrations, copepods may increase utilization of microzooplankton prey concentrated in the oxycline. Hypoxic waters may elevate consumption of copepods by jellyfish and depress consumption by pelagic fish. This project will evaluate copepod distribution and migration behavior, individual fitness and stage-specific mortality in hypoxic and normoxic waters. It will examine food-web consequences of increased or decreased spatial coherence of copepods and their predators and prey in regions with hypoxic bottom waters and will contribute to fundamental understanding of food-web processes in eutrophic coastal ecosystems. Project acronym "DeZoZoo" = "Dead Zone Zooplankton"
attribute	NC_GLOBAL	projects_0_end_date	String	2015-02
attribute	NC_GLOBAL	projects_0_geolocation	String	Chesapeake Bay
attribute	NC_GLOBAL	projects_0_name	String	Hypoxia in Marine Ecosystems: Implications for Neritic Copepods
attribute	NC_GLOBAL	projects_0_project_nid	String	518411
attribute	NC_GLOBAL	projects_0_project_website	String	http://www.planktoneer.com/research.html#HYPOX
attribute	NC_GLOBAL	projects_0_start_date	String	2010-03
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	37.708
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Cruise metadata from the Gelatinous Zooplankton portion of the Dead Zone Zooplankton project.\u00a0 Includes gear types and mesh sizes, locations, dissolved oxygen in the water column,depths sampled and volume of water filtered.
attribute	NC_GLOBAL	title	String	[DeZoZoo Cruise Data] - Sampling data from Gelatinous Zooplankton project from R/V Hugh R. Sharp multiple cruises in Chesapeake Bay from 2010-2011 (DeZoZoo project) (Hypoxia in Marine Ecosystems: Implications for Neritic Copepods)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-762532.67
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	cruise		String
attribute	cruise	bcodmo_name	String	Cruise Name
attribute	cruise	description	String	Internal cruise identifier: Dead Zone Zooplankton: First two digits denote Year (10=2010; 11=2011) Last two digits denote cruise number for that year
attribute	cruise	long_name	String	Cruise
attribute	cruise	units	String	text
variable	cruise_official		String
attribute	cruise_official	bcodmo_name	String	Cruise Name
attribute	cruise_official	description	String	UNOLS cruise identifier
attribute	cruise_official	long_name	String	Cruise Official
attribute	cruise_official	units	String	text
variable	station		byte
attribute	station	_FillValue	byte	127
attribute	station	actual_range	byte	1, 18
attribute	station	bcodmo_name	String	station
attribute	station	description	String	Station Count
attribute	station	long_name	String	Station
attribute	station	units	String	number
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	37.708, 38.582
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
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	-762532.67, -76.194
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
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	sample_ID		String
attribute	sample_ID	bcodmo_name	String	sample
attribute	sample_ID	description	String	Unique ID for each Sample (#-AAA-#-#) First number is station; Letters denote gear type; second number is gear deployment sequence [called cast by DMO]; third number is Net number per deployment; broken up into its component parts to be served
attribute	sample_ID	long_name	String	Sample ID
attribute	sample_ID	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P02/current/ACYC/
attribute	sample_ID	units	String	alphanumeric
variable	cast		byte
attribute	cast	_FillValue	byte	127
attribute	cast	actual_range	byte	1, 6
attribute	cast	bcodmo_name	String	cast
attribute	cast	description	String	gear deployment sequence
attribute	cast	long_name	String	Cast
attribute	cast	units	String	number
variable	net		byte
attribute	net	_FillValue	byte	127
attribute	net	actual_range	byte	1, 6
attribute	net	bcodmo_name	String	net
attribute	net	description	String	net number per deployment
attribute	net	long_name	String	Net
attribute	net	units	String	number
variable	occupation		String
attribute	occupation	bcodmo_name	String	unknown
attribute	occupation	description	String	relative geolocation: South station near mouth of Rappohannock River; North station near mouth of Choptank River
attribute	occupation	long_name	String	Occupation
attribute	occupation	units	String	text
variable	year		short
attribute	year	_FillValue	short	32767
attribute	year	actual_range	short	2010, 2011
attribute	year	bcodmo_name	String	year
attribute	year	description	String	Year
attribute	year	long_name	String	Year
attribute	year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
attribute	year	units	String	4-digit year
variable	month_local		byte
attribute	month_local	_FillValue	byte	127
attribute	month_local	actual_range	byte	5, 9
attribute	month_local	bcodmo_name	String	month_local
attribute	month_local	description	String	month
attribute	month_local	long_name	String	Month Local
attribute	month_local	units	String	number
variable	day_local		byte
attribute	day_local	_FillValue	byte	127
attribute	day_local	actual_range	byte	21, 31
attribute	day_local	bcodmo_name	String	day_local
attribute	day_local	description	String	day of the month
attribute	day_local	long_name	String	Day Local
attribute	day_local	units	String	number
variable	time_local		String
attribute	time_local	bcodmo_name	String	time
attribute	time_local	description	String	time of net tow
attribute	time_local	long_name	String	Time Local
attribute	time_local	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/AHMSAA01/
attribute	time_local	units	String	HH:MM;24-hour clock
variable	gear		String
attribute	gear	bcodmo_name	String	instrument
attribute	gear	description	String	type of trawl
attribute	gear	long_name	String	Gear
attribute	gear	units	String	text
variable	mesh		short
attribute	mesh	_FillValue	short	32767
attribute	mesh	actual_range	short	200, 4000
attribute	mesh	bcodmo_name	String	net_mesh
attribute	mesh	description	String	Size of Mesh
attribute	mesh	long_name	String	Mesh
attribute	mesh	units	String	microns
variable	depth_relative		String
attribute	depth_relative	bcodmo_name	String	depth_comment
attribute	depth_relative	description	String	Depth of a net: surface= surface to above pycnocline; pycnocline = through pycnocline; below pycnocline = between bottom and pycnocline; bottom = bottom to below pycnocline
attribute	depth_relative	long_name	String	Depth
attribute	depth_relative	standard_name	String	depth
attribute	depth_relative	units	String	text
variable	depth_start_nom		float
attribute	depth_start_nom	_FillValue	float	NaN
attribute	depth_start_nom	actual_range	float	2.5, 24.0
attribute	depth_start_nom	bcodmo_name	String	depth
attribute	depth_start_nom	colorBarMaximum	double	8000.0
attribute	depth_start_nom	colorBarMinimum	double	-8000.0
attribute	depth_start_nom	colorBarPalette	String	TopographyDepth
attribute	depth_start_nom	description	String	Sampling depth at start of tow
attribute	depth_start_nom	long_name	String	Depth
attribute	depth_start_nom	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P09/current/DEPH/
attribute	depth_start_nom	standard_name	String	depth
attribute	depth_start_nom	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, 18.0
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	Sampling depthat end of 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	preservation		String
attribute	preservation	bcodmo_name	String	unknown
attribute	preservation	description	String	Type of preservative used for the samples
attribute	preservation	long_name	String	Preservation
attribute	preservation	units	String	text
variable	tow_duration		byte
attribute	tow_duration	_FillValue	byte	127
attribute	tow_duration	actual_range	byte	1, 20
attribute	tow_duration	bcodmo_name	String	unknown
attribute	tow_duration	description	String	Time a net actively fished
attribute	tow_duration	long_name	String	Tow Duration
attribute	tow_duration	units	String	minutes
variable	vol_filt		float
attribute	vol_filt	_FillValue	float	NaN
attribute	vol_filt	actual_range	float	36.0, 786.8
attribute	vol_filt	bcodmo_name	String	vol_filt
attribute	vol_filt	description	String	Amount of water filtered
attribute	vol_filt	long_name	String	Vol Filt
attribute	vol_filt	units	String	cubic meters
variable	O2_mg_L_mean		float
attribute	O2_mg_L_mean	_FillValue	float	NaN
attribute	O2_mg_L_mean	actual_range	float	0.1, 10.4
attribute	O2_mg_L_mean	bcodmo_name	String	Dissolved_Oxygen
attribute	O2_mg_L_mean	description	String	Dissolved Oxygen averaged over the depth of a fishing net
attribute	O2_mg_L_mean	long_name	String	O2 Mg L Mean
attribute	O2_mg_L_mean	units	String	milligrams per liter
variable	time_accuracy		float
attribute	time_accuracy	_FillValue	float	NaN
attribute	time_accuracy	actual_range	float	0.0, 100.0
attribute	time_accuracy	bcodmo_name	String	unknown
attribute	time_accuracy	description	String	Percent of time net fished within designated depths to an accuracy of plus or minus 1 minute
attribute	time_accuracy	long_name	String	Time Accuracy
attribute	time_accuracy	units	String	minutes
variable	ISO_DateTime_Local		String
attribute	ISO_DateTime_Local	bcodmo_name	String	ISO_DateTime_Local
attribute	ISO_DateTime_Local	description	String	ISO standard formatted Time
attribute	ISO_DateTime_Local	long_name	String	ISO Date Time Local
attribute	ISO_DateTime_Local	units	String	alphanumeric
variable	comments		String
attribute	comments	bcodmo_name	String	comment
attribute	comments	description	String	notes
attribute	comments	long_name	String	Comments
attribute	comments	units	String	text

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.