ERDDAP > info > bcodmo_dataset_560448

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	Abundance and proportion of ichthyoplankton of the Northeast U.S. Shelf from surveys conducted during the MARMAP (1977-1987) and EcoMon (1999-2008) programs.		I   M	background			BCO-DMO	bcodmo_dataset_560448

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	MARMAP used mainly a fixed station design covering the sample area of each survey approximately evenly (Sibunka and Silverman 1984, 1989).\u00a0 EcoMon sampled the same spatial extent of the shelf as MARMAP, but used a random- stratified design based on the NEFSC bottom trawl survey design (Azarovitz 1981). The number of plankton strata (n = 47) is lower than the bottom trawl survey (n = 108) as the narrow inshore stratum and the offshore shelf-break stratum of the bottom trawl survey (Azarovitz 1981) are combined in the EcoMon plankton sampling design.\u00a0 The area encompassed by each stratum determined the number of samples in that stratum.\u00a0 The number of stations sampled during an EcoMon survey is approximately 30 % less than that of MARMAP.\u00a0 Samples were collected four to eight times per year (primarily: January-February, March-April, May-June, July-August, September-October, and November-December) for each program (Richardson et al. 2010). The basic station protocols were very similar for MARMAP and EcoMon (Jossi and Marak 1983, Ejsymont and Sherman 2000).\u00a0 Samples were collected both day and night using a 61-cm bongo.\u00a0 Net tow speed was approximately 1.5 knots. Double oblique tows were a minimum of 5-mintues in duration, and fished from the surface to within 5-m of the seabed or to a maximum depth of 200-m. The volume filtered of all collections was measured with mechanical flowmeters mounted across the mouth of each net. Mesh size of the net differed between the programs, and was 505-\u03bcm during MARMAP and 333-\u03bcm during EcoMon.\u00a0 Samples were preserved in 5% formalin. Processing of most samples was conducted at the Morski Instytut Rybacki in Szczecin, Poland; the remaining samples were processed at the NEFSC or the Atlantic Reference Center, St Andrews, Canada. Larvae were identified to the lowest possible taxon and enumerated for each sample. Plankton tows differ with respect to volume of water filtered and maximum tow depth. In order to make data values comparable, these values were normalized through the use of a standard haul factor: h = z * 10 / v, where z = maximum tow depth (in meters) and v = volume of water filtered (in meters cubed). Taxon abundance for each station was standardized to number under 10 \u2022 m-2 sea surface (Morse 1989). References: Azarovitz TR. 1981. A brief historical review of the Woods Hole Laboratory trawl survey time series. Canadian Special Publication of Fisheries and Aquatic Sciences. 58:62-7. Ejsymont L, Sherman K. 2000. Poland and the United States' cooperation in fisheries ecology: a multidecadal retrospective. Bulletin Sea Fisheries Institute Gdynia. 3(3-10). Jossi JW, Marak RR. 1983. MARMAP plankton survey manual. US Department of Commerce, NOAA Technical Memo. NMFS-F/NEC-21:258 p. URL:\u00a0[http://nefsc.noaa.gov/publications/tm/pdfs/tmfnec21.pdf](\\"http://nefsc.noaa.gov/publications/tm/pdfs/tmfnec21.pdf\\") Morse W. 1989. Catchability, Growth, and Mortality of Larval Fishes. Fish Bul. 87(3):417-46. URL:\u00a0[http://fishbull.noaa.gov/873/morse.pdf](\\"http://fishbull.noaa.gov/873/morse.pdf\\") Richardson DE, Hare JA, Overholtz WJ, Johnson DL. Development of long-term larval indices for Atlantic herring (Clupea harengus) on the northeast US continental shelf. 2010. Ices Journal of Marine Science. 67(4):617-27. doi:10.1093/icesjms/fsp276 Sibunka JD, Silverman MJ. 1984. MARMAP surveys of the continental shelf from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1977-1983). Atlas No. 1. Summary of operations. US Department of Commerce, NOAA Technical Memo. NMFS-F/NEC-33:306 p. Sibunka JD, Silverman MJ. 1989. MARMAP surveys of the continental shelf from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1984-87). Atlas No. 3. Summary of operations. US Department of Commerce, NOAA Technical Memo. NEFC-F/NEC-68:197 p.
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	Northeast U.S. Ichthyoplankton From The Northeast Fisheries Science Center (NEFSC) MARMAP and EcoMon Surveys PI: Dr. Jon Hare (NOAA-NEFSC) Contact: Harvey Walsh (NOAA-NEFSC) Version: 16 June 2015
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	2015-06-16T18:28:46Z
attribute	NC_GLOBAL	date_modified	String	2020-01-14T21:24:30Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.560448.1
attribute	NC_GLOBAL	Easternmost_Easting	double	-65.91371179
attribute	NC_GLOBAL	geospatial_lat_max	double	44.26110273
attribute	NC_GLOBAL	geospatial_lat_min	double	35.87810748
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-65.91371179
attribute	NC_GLOBAL	geospatial_lon_min	double	-75.69231598
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/560448
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	MARMAP Bongo Net
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	560559
attribute	NC_GLOBAL	instruments_0_description	String	A non-opening-closing descendant of the McGowan/Brown Bongo net, consisting of a pair of circular hoops (61 cm in diameter and 30 cm long) joined by a central yoke which is clamped to the towing cable. The nets are 61 cm in diameter and have a cylindrical section 147 cm long and a conical section 153 cm long. Mesh sizes from 0.1 to 0.5 mm have been used, but normally 0.333 mm is used. A flowmeter is present in each hoop [Posgay and Marak (1980), Fig. 1].
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/NETT0089/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	MARMAP Bongo Net
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	672
attribute	NC_GLOBAL	keywords	String	abund, area, bco, bco-dmo, biological, chemical, data, dataset, dmo, erddap, latitude, longitude, management, mean, mean_abund, oceanography, office, preliminary, proportion, rel, rel_proportion, season, strata, taxa, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/560448/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/560448
attribute	NC_GLOBAL	Northernmost_Northing	double	44.26110273
attribute	NC_GLOBAL	param_mapping	String	{'560448': {'lat': 'flag - latitude', 'lon': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/560448/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	Northeast Fisheries Science Center - Narragansett
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	NOAA NEFSC
attribute	NC_GLOBAL	people_0_person_name	String	Jonathan Hare
attribute	NC_GLOBAL	people_0_person_nid	String	51164
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	Northeast Fisheries Science Center - Narragansett
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	NOAA NEFSC
attribute	NC_GLOBAL	people_1_person_name	String	Harvey Walsh
attribute	NC_GLOBAL	people_1_person_nid	String	560345
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	NEFSC Ichthyoplankton
attribute	NC_GLOBAL	projects_0_acronym	String	NEFSC Ichthyoplankton
attribute	NC_GLOBAL	projects_0_description	String	The Northeast Fisheries Science Center (NEFSC) has conducted several ichthyoplankton collection programs on the NEUS Shelf over the past forty years including the Marine Resources Monitoring, Assessment, and Prediction program (MARMAP, 1977 - 1987) and Ecosystem Monitoring (EcoMon, 1999 - present) program (Richardson et al. 2010). Both MARMAP and EcoMon were designed as multi-species plankton surveys, and sampling effort covered the entire NEUS Shelf from Cape Hatteras, North Carolina, to Cape Sable, Nova Scotia (Figure 1, Sibunka and Silverman 1984, 1989; Richardson et al. 2010). References: Richardson DE, Hare JA, Overholtz WJ, Johnson DL. 2010. Development of long-term larval indices for Atlantic herring (Clupea harengus) on the northeast US continental shelf. Ices Journal of Marine Science. 67(4):617-27 Sibunka JD, Silverman MJ. 1984. MARMAP surveys of the continental shelf from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1977-1983). Atlas No. 1. Summary of operations. US Department of Commerce, NOAA Technical Memo. NMFS-F/NEC-33:306 p. Sibunka JD, Silverman MJ. 1989. MARMAP surveys of the continental shelf from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia (1984-87). Atlas No. 3. Summary of operations. US Department of Commerce, NOAA Technical Memo. NEFC-F/NEC-68:197 p.
attribute	NC_GLOBAL	projects_0_end_date	String	2008-12
attribute	NC_GLOBAL	projects_0_geolocation	String	Northeast U.S. Shelf Ecosystem from Cape Hatteras, North Carolina to Cape Sable, Nova Scotia
attribute	NC_GLOBAL	projects_0_name	String	Northeast Fisheries Science Center Ichthyoplankton Collection
attribute	NC_GLOBAL	projects_0_project_nid	String	560452
attribute	NC_GLOBAL	projects_0_start_date	String	1977-01
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	35.87810748
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Abundance and proportion of ichthyoplankton of the Northeast U.S. Shelf. Ichthyoplankton data from several surveys conducted during the Marine Resources Monitoring, Assessment, and Prediction (MARMAP; 1977-1987) and Ecosystem Monitoring (EcoMon; 1999-2008) programs.\r\n\r\nThe Northeast Fisheries Science Center (NEFSC) has conducted several ichthyoplankton collection programs on the NEUS Shelf over the past forty years including the Marine Resources Monitoring, Assessment, and Prediction program (MARMAP, 1977 - 1987) and Ecosystem Monitoring (EcoMon, 1999 - present) program (Richardson et al. 2010). Both MARMAP and EcoMon were designed as multi-species plankton surveys, and sampling effort covered the entire NEUS Shelf from Cape Hatteras, North Carolina, to Cape Sable, Nova Scotia (Figure 1, Sibunka and Silverman 1984, 1989; Richardson et al. 2010).
attribute	NC_GLOBAL	title	String	Abundance and proportion of ichthyoplankton of the Northeast U.S. Shelf from surveys conducted during the MARMAP (1977-1987) and EcoMon (1999-2008) programs.
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	Westernmost_Easting	double	-75.69231598
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	taxa		String
attribute	taxa	bcodmo_name	String	taxon
attribute	taxa	description	String	Species/taxonomic name.
attribute	taxa	long_name	String	Taxa
attribute	taxa	units	String	text
variable	year		short
attribute	year	_FillValue	short	32767
attribute	year	actual_range	short	1977, 2008
attribute	year	bcodmo_name	String	year
attribute	year	description	String	4 digit GMT 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	dimensionless
variable	season		byte
attribute	season	_FillValue	byte	127
attribute	season	actual_range	byte	1, 6
attribute	season	bcodmo_name	String	season
attribute	season	description	String	1 digit code for bimonthly sample collection period: 1=January-February; 2=March-April; 3=May-June; 4=July-August; 5=September-October; 6=November-December.
attribute	season	long_name	String	Season
attribute	season	units	String	dimensionless
variable	strata		byte
attribute	strata	_FillValue	byte	127
attribute	strata	actual_range	byte	1, 47
attribute	strata	bcodmo_name	String	unknown
attribute	strata	description	String	2 digit code for EcoMon plankton strata.
attribute	strata	long_name	String	Strata
attribute	strata	units	String	dimensionless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	35.87810748, 44.26110273
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	Strata latitude center in 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	-75.69231598, -65.91371179
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	Strata longitude center in 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	area		float
attribute	area	_FillValue	float	NaN
attribute	area	actual_range	float	923.79, 15368.0
attribute	area	bcodmo_name	String	unknown
attribute	area	description	String	Strata area in square kilometers
attribute	area	long_name	String	Area
attribute	area	units	String	square kilomters (km^2)
variable	mean_abund		double
attribute	mean_abund	_FillValue	double	NaN
attribute	mean_abund	actual_range	double	0.0, 81972.19667
attribute	mean_abund	bcodmo_name	String	abundance
attribute	mean_abund	description	String	Strata mean abundance (mean number of larvae under 10 m^2 sea surface)
attribute	mean_abund	long_name	String	Mean Abund
attribute	mean_abund	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P03/current/B070/
attribute	mean_abund	units	String	mean number of adults
variable	rel_proportion		double
attribute	rel_proportion	_FillValue	double	NaN
attribute	rel_proportion	actual_range	double	0.0, 100.0
attribute	rel_proportion	bcodmo_name	String	relative_abund
attribute	rel_proportion	description	String	Strata relative proportion (% collected in a stratum for that season and year)
attribute	rel_proportion	long_name	String	Rel Proportion
attribute	rel_proportion	units	String	percentage (%)

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.