ERDDAP > info > bcodmo_dataset_3766

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	Pteropod respiration rates from NW Atlantic and NE Pacific; OC473 (2011) and NH1208 (2012)		I   M	background			BCO-DMO	bcodmo_dataset_3766

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	At sea, animals were captured for physiological experiments using a 1 m diameter, 150 \u00b5m (in 2011) or 335 \u00b5m (in 2012) mesh Reeve net trawl, or a 1 m2 MOCNESS tow with 150 \u00b5m mesh nets. Pteropods were placed in filtered seawater at densities of < 30 individuals liter-1 and acclimated for at least 8 hours at 20\u00b0 C, 15\u00b0C or 10\u00b0C in temperature controlled waterbaths. After acclimation, individuals that were in good condition were put into glass syringe respiration chambers with a known volume of 0.2 micron filtered seawater for at least four hours. In 2012 on cruise NH1208, an experiment\u00a0 was conducted to determine whether antibiotics changed the metabolic rate of the pteropods. In this experiment water was treated with 25mg each of Streptomycin and Ampicillin liter-1 or without antibiotics. Unless otherwise explicitly stated, the water contained 25mg each of Streptomycin and Ampicillin liter-1, to prevent bacterial growth, and was bubbled with certified gas mixes to achieve normal air saturated (21% O2, 380 ppm CO2), high CO2 (21% O2, 800 ppm CO2), low O2 (10% O2, 380 ppm CO2) or low O2 high CO2 (10% O2, 800 ppm CO2) conditions. Bubbling of 10% O2 achieved a mean initial O2 concentration of 10-13% in low O2 treatments. During all experiments, we simultaneously ran a control syringe (without an animal)\u00a0 to monitor background respiration of microbes. At the conclusion of the experiments, we measured the O2 level by withdrawing a sample of water from the chamber using a\u00a0 500 \u00b5L airtight Hamilton syringe and injected past a Clarke-type O2 electrode (#1302) and meter (#782) in a water- jacketed injection port (#MC100, Strathkelvin Instruments, North Lanarkshire, United Kingdom; Marsh and Manahan, 1999). Our resulting O2consumption rates are reported in \u00b5moles g-1 h-1 (wet mass). Notes on carbonate chemistry and net profiles are in the cruise report.
attribute	NC_GLOBAL	awards_0_award_nid	String	54702
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1041068
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1041068
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	pteropod respiration Amy Maas (WHOI) OC473 & NH1208 Aug. 2011 & Aug. 2012 version 2: 2016-07-26 (changed NH1208 longitude values to negative)
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	2012-11-06T19:49:01Z
attribute	NC_GLOBAL	date_modified	String	2016-07-26T19:28:35Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/6421
attribute	NC_GLOBAL	Easternmost_Easting	double	-41.9425
attribute	NC_GLOBAL	geospatial_lat_max	double	49.99273
attribute	NC_GLOBAL	geospatial_lat_min	double	33.629
attribute	NC_GLOBAL	geospatial_lat_units	String	degrees_north
attribute	NC_GLOBAL	geospatial_lon_max	double	-41.9425
attribute	NC_GLOBAL	geospatial_lon_min	double	-148.608
attribute	NC_GLOBAL	geospatial_lon_units	String	degrees_east
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/3766
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Reeve Net
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	1 m diameter, 150 µm (in 2011) or 335 µm (in 2012) mesh Reeve net trawl
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	5853
attribute	NC_GLOBAL	instruments_0_description	String	A Reeve Net is a conventional ring net with a very large acrylic cylindrical cod-end (30 liters) designed to collect fragile gelatinous animals. The net is lowered to a particular depth and then hauled slowly back to the surface (5-10 m/min). Reeve (1981) also described a double net system with no bridle and flotation at the net mouth that is attached to a roller mechanism that rides on a tow wire. The roller system is locked in place by a pressure release device. Once below a set pressure, the roller and nets are released and they float slowly up the wire, gently collecting the zooplankton, without being influenced by the motion of the vessel and associated vertical wire movements. (from Wiebe and Benfield, 2003)
attribute	NC_GLOBAL	instruments_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/NETT0147/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Reeve Net
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	443
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Reeve Net
attribute	NC_GLOBAL	instruments_1_acronym	String	MOCNESS
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	MOCNESS-1 m^2 wtih 150 micron mesh.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	5852
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	instruments_2_acronym	String	O2 microsensor
attribute	NC_GLOBAL	instruments_2_dataset_instrument_description	String	Clarke-type O2 electrode (#1302) and meter (#782) in a water-jacketed injection port (#MC100, Strathkelvin Instruments, North Lanarkshire, United Kingdom; Marsh and Manahan, 1999)
attribute	NC_GLOBAL	instruments_2_dataset_instrument_nid	String	6116
attribute	NC_GLOBAL	instruments_2_description	String	A miniaturized Clark-type dissolved oxygen instrument, including glass micro-sensors with minute tips (diameters ranging from 1 to 800 um). A gold or platinum sensing cathode is polarized against an internal reference and, driven by external partial pressure, oxygen from the environment penetrates through the sensor tip membrane and is reduced at the sensing cathode surface. A picoammeter converts the resulting reduction current to a signal. The size of the signal generated by the electrode is proportional to the flux of oxygen molecules to the cathode.The sensor also includes a polarized guard cathode, which scavenges oxygen in the electrolyte, thus minimizing zero-current and pre-polarization time.With the addition of a meter and a sample chamber, the respiration of a small specimen can be measured. Example: Strathkelvin Inst. http://www.strathkelvin.com
attribute	NC_GLOBAL	instruments_2_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/351/
attribute	NC_GLOBAL	instruments_2_instrument_name	String	Oxygen Microelectrode Sensor
attribute	NC_GLOBAL	instruments_2_instrument_nid	String	701
attribute	NC_GLOBAL	instruments_2_supplied_name	String	Oxygen Microelectrode Sensor
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, comments, comments_expt, control, cruise, cruise_id, data, dataset, date, date_local, dmo, elapsed, erddap, expt, latitude, local, longitude, management, O2, O2_control, O2_expt, O2_respiration, oceanography, office, oxygen, preliminary, rate, resp, resp_rate, respiration, sample, sample_volume, species, station, temperature, time, time_elapsed, tow, treatment, volume, weight, weight_g
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/3766/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/3766
attribute	NC_GLOBAL	Northernmost_Northing	double	49.99273
attribute	NC_GLOBAL	param_mapping	String	{'3766': {'lat': 'flag - latitude', 'lon': 'flag - longitude'}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/3766/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	Gareth Lawson
attribute	NC_GLOBAL	people_0_person_nid	String	51084
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 BCO-DMO
attribute	NC_GLOBAL	people_1_person_name	String	Amy Maas
attribute	NC_GLOBAL	people_1_person_nid	String	51589
attribute	NC_GLOBAL	people_1_role	String	Scientist
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	Amy Maas
attribute	NC_GLOBAL	people_2_person_nid	String	51589
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	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	OAPS
attribute	NC_GLOBAL	projects_0_acronym	String	OAPS
attribute	NC_GLOBAL	projects_0_description	String	Modified version of the NSF award abstract: The impact of ocean acidification on marine ecosystems represents a vital question facing both marine scientists and managers of ocean resources. Thecosome pteropods are a group of calcareous planktonic molluscs widely distributed in coastal and open ocean pelagic ecosystems of the world¡¦s oceans. These animals secrete an aragonite shell, and thus are highly sensitive to ocean acidification due to the water column's changing carbonate chemistry, and particularly the shoaling of the aragonite compensation depth at which seawater becomes corrosive to aragonite. In many regions, however, relatively little is known about the abundance, distribution, vertical migratory behavior, and ecological importance of pteropods. Assessing the likely ecosystem consequences of changes in pteropod dynamics resulting from ocean acidification will require a detailed understanding of pteropod distribution and abundance relative to changing aragonite saturation in the water column. The primary objective of this project is to quantify the distribution, abundance, species composition, shell condition, and vertical migratory behavior of oceanic thecosome pteropods in the northwest Atlantic and northeast Pacific, and correlate these quantities to hydrography and concurrent measurements of carbonate chemistry, including vertical and horizontal distributions of aragonite saturation. In particular, the project will capitalize on present-day variability in the depth distribution of aragonite saturation levels within and between the Atlantic and Pacific Oceans as a "natural experiment" to address the hypotheses that pteropod vertical distribution, species composition, and abundance vary as the compensation depth becomes shallower. Secondary objectives are to develop acoustic protocols for the remote quantification of pteropod abundance for future integration into ocean acidification monitoring networks, and to characterize carbonate chemistry and nutrients along portions of two WOCE/CLIVAR Repeat Hydrography transects (A20 in the Atlantic and P17N in the Pacific) to identify decadal-scale changes in the carbonate system. These hypotheses and objectives will be addressed through two cruises along survey transects between 35 and 50 degrees North in the northwest Atlantic and northeast Pacific involving a combination of station-work and underway measurements, and a comprehensive array of instruments, including acoustic, optical, towed net, hydrographic, and carbonate chemistry sensors and sampling systems. This highly inter-disciplinary project, combines expertise in zooplankton ecology, acoustics, and marine chemistry. The proposed work will result in a detailed baseline understanding of variability in the horizontal and vertical distribution, as well as species composition, of thecosome pteropods in the northwest Atlantic and northeast Pacific, making a key contribution to zooplankton ecology generally. In addition, by quantifying the response to current spatial variability within and between the Atlantic and Pacific Oceans, the project will provide important information on the likely response of pteropod distribution to future changes in the vertical distribution of aragonite saturation levels, a necessary component in modeling the impacts of ocean acidification on marine ecosystem function, services, and resources. Ocean acidification is increasingly appreciated as an urgent societal concern. Thecosome pteropods are key prey for a variety of commercially-exploited fish species, and the improved understanding the PIs seek of pteropod distribution and likely response to changing water column carbonate chemistry will have important implications for our understanding of potential effects of ocean acidification on marine resources.
attribute	NC_GLOBAL	projects_0_end_date	String	2013-09
attribute	NC_GLOBAL	projects_0_geolocation	String	35 and 50 degrees North in the northwest Atlantic and northeast Pacific
attribute	NC_GLOBAL	projects_0_name	String	Horizontal and Vertical Distribution of Thecosome Pteropods in Relation to Carbonate Chemistry in the Northwest Atlantic and Northeast Pacific
attribute	NC_GLOBAL	projects_0_project_nid	String	2154
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	33.629
attribute	NC_GLOBAL	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Respiration rates of thecosome pteropod exposed to various O2 and CO2 concentrations
attribute	NC_GLOBAL	title	String	Pteropod respiration rates from NW Atlantic and NE Pacific; OC473 (2011) and NH1208 (2012)
attribute	NC_GLOBAL	version	String	2
attribute	NC_GLOBAL	Westernmost_Easting	double	-148.608
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	cruise identification
attribute	cruise_id	long_name	String	Cruise Id
variable	species		String
attribute	species	bcodmo_name	String	species
attribute	species	description	String	taxonomic genus and species name
attribute	species	long_name	String	Species
attribute	species	units	String	text
variable	treatment		String
attribute	treatment	bcodmo_name	String	exp_type
attribute	treatment	description	String	treatment
attribute	treatment	long_name	String	Treatment
attribute	treatment	units	String	text
variable	temp		byte
attribute	temp	_FillValue	byte	127
attribute	temp	actual_range	byte	10, 20
attribute	temp	bcodmo_name	String	temperature
attribute	temp	description	String	temperature
attribute	temp	long_name	String	Temperature
attribute	temp	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/TEMPP901/
attribute	temp	units	String	Celsius
variable	date_local		int
attribute	date_local	_FillValue	int	2147483647
attribute	date_local	actual_range	int	20110808, 20120915
attribute	date_local	bcodmo_name	String	date_local
attribute	date_local	description	String	date in local time in yyyymmdd format
attribute	date_local	long_name	String	Date Local
attribute	date_local	units	String	unitless
variable	station		String
attribute	station	bcodmo_name	String	station
attribute	station	description	String	station
attribute	station	long_name	String	Station
attribute	station	units	String	unitless
variable	latitude		double
attribute	latitude	_CoordinateAxisType	String	Lat
attribute	latitude	_FillValue	double	NaN
attribute	latitude	actual_range	double	33.629, 49.99273
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	-148.608, -41.9425
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	tow		String
attribute	tow	bcodmo_name	String	tow
attribute	tow	description	String	tow type and number including net number for MOCNESS tow if available
attribute	tow	long_name	String	Tow
attribute	tow	units	String	text
variable	weight_g		float
attribute	weight_g	_FillValue	float	NaN
attribute	weight_g	actual_range	float	5.0E-4, 0.2434
attribute	weight_g	bcodmo_name	String	weight_g
attribute	weight_g	description	String	wet weight
attribute	weight_g	long_name	String	Weight G
attribute	weight_g	units	String	grams
variable	sample_volume		float
attribute	sample_volume	_FillValue	float	NaN
attribute	sample_volume	actual_range	float	0.008, 0.05
attribute	sample_volume	bcodmo_name	String	sample_volume
attribute	sample_volume	description	String	volume of incubation chamber
attribute	sample_volume	long_name	String	Sample Volume
attribute	sample_volume	units	String	liters
variable	time_elapsed		float
attribute	time_elapsed	_FillValue	float	NaN
attribute	time_elapsed	actual_range	float	0.18, 19.2
attribute	time_elapsed	bcodmo_name	String	time_elapsed
attribute	time_elapsed	description	String	incubation duration
attribute	time_elapsed	long_name	String	Time Elapsed
attribute	time_elapsed	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/ELTMZZZZ/
attribute	time_elapsed	units	String	hours
variable	O2_control		float
attribute	O2_control	_FillValue	float	NaN
attribute	O2_control	actual_range	float	90.74, 285.01
attribute	O2_control	bcodmo_name	String	O2_umol_L
attribute	O2_control	description	String	concentration of O2 in experimental chamber after incubation
attribute	O2_control	long_name	String	O2 Control
attribute	O2_control	units	String	micromoles O2
variable	O2_expt		float
attribute	O2_expt	_FillValue	float	NaN
attribute	O2_expt	actual_range	float	87.11, 289.62
attribute	O2_expt	bcodmo_name	String	O2_umol_L
attribute	O2_expt	description	String	concentration of O2 in control chamber after incubation
attribute	O2_expt	long_name	String	O2 Expt
attribute	O2_expt	units	String	micromoles O2
variable	O2_respiration		float
attribute	O2_respiration	_FillValue	float	NaN
attribute	O2_respiration	actual_range	float	0.2, 196.0
attribute	O2_respiration	bcodmo_name	String	O2_respir
attribute	O2_respiration	description	String	change in O2 concentration in the water attributable to organismal respiration (Control minus Measurement)
attribute	O2_respiration	long_name	String	O2 Respiration
attribute	O2_respiration	units	String	micromoles O2/liter
variable	resp_rate		float
attribute	resp_rate	_FillValue	float	NaN
attribute	resp_rate	actual_range	float	0.05, 27.69
attribute	resp_rate	bcodmo_name	String	O2 consumption
attribute	resp_rate	description	String	rate of O2 consumed by the organism per gram of the organism per hour
attribute	resp_rate	long_name	String	Resp Rate
attribute	resp_rate	units	String	micromoles O2/gram hour
variable	comments_expt		String
attribute	comments_expt	bcodmo_name	String	comment
attribute	comments_expt	description	String	comments pertaining to the final condition of specimens after incubation
attribute	comments_expt	long_name	String	Comments Expt
attribute	comments_expt	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.