ERDDAP > info > bcodmo_dataset_774017

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	PUA (polyunsaturated aldehydes) experiments: Chlorophyll-a concentrations, Virginia Coastal Bays and Bay of Napoli, Mar-July 2015		I   M	background			BCO-DMO	bcodmo_dataset_774017

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
attribute	NC_GLOBAL	acquisition_description	String	Experiments were conducted by collecting raw seawater, filtering it through 200\u00b5m mesh sieves into 20L carboys, and then dispensing it into experimental jars. Triplicates bottles were used for each treatment. Treatments included whole seawater (control), whole seawater plus copepods (Zooplankton), and the same treatments plus PUA additions (Heptadienal, Octadienal, Decadienal, and Mixed PUA). PUA were dissolved in methanol and added to experimental bottles for a final concentration of 21 nM; for the mixed PUA treatment this was 7nM of each type of PUA. Initial samples were collected from the carboy for chlorophyll a as described below. Final samples were collected from each treatment and control bottle as described below. Chlorophyll a samples (50-150ml) were filtered onto 25mm diameter GF/F filters (nominal 0.7 micrometer\u00a0pore size), and filters were extracted in 90% acetone at -20 degrees C for 24 hours using the acid method (EPA Method 445 - Arar & Collins 1997), then analyzed on a Turner Designs AU10 or TD700 fluorometer. All data were processed in Microsoft Excel.
attribute	NC_GLOBAL	awards_0_award_nid	String	555555
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1357168
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1357168
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	Michael E. Sieracki
attribute	NC_GLOBAL	awards_0_program_manager_nid	String	50446
attribute	NC_GLOBAL	awards_1_award_nid	String	555561
attribute	NC_GLOBAL	awards_1_award_number	String	OCE-1357169
attribute	NC_GLOBAL	awards_1_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1357169
attribute	NC_GLOBAL	awards_1_funder_name	String	NSF Division of Ocean Sciences
attribute	NC_GLOBAL	awards_1_funding_acronym	String	NSF OCE
attribute	NC_GLOBAL	awards_1_funding_source_nid	String	355
attribute	NC_GLOBAL	awards_1_program_manager	String	Michael E. Sieracki
attribute	NC_GLOBAL	awards_1_program_manager_nid	String	50446
attribute	NC_GLOBAL	cdm_data_type	String	Other
attribute	NC_GLOBAL	comment	String	PUA (polyunsaturated aldehydes) experiments: Chlorophyll a concentration Virginia Coastal Bays and Bay of Napoli, Mar-July 2015 PI's: P. Lavrentyev (U Akron), J. Pierson & D. Stoeker (UMaryland CES) version date: 2019-07-31
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	2019-08-01T13:47:09Z
attribute	NC_GLOBAL	date_modified	String	2019-10-07T20:53:23Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.774017.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/774017
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Turner Fluorometer -10AU
attribute	NC_GLOBAL	instruments_0_dataset_instrument_description	String	Chlorophyll a concentrations were determined on a Turner Designs AU10 fluorometer after extraction in 90% acetone at 0°C. The fluorometer was calibrated using a 5 point calibration with a chlorophyll a standard
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	774027
attribute	NC_GLOBAL	instruments_0_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_0_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L22/current/TOOL0393/
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Turner Designs Fluorometer -10-AU
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	464
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Turner Designs AU10 fluorometer
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, chl, chlorophyll, data, dataset, dmo, erddap, experiment, management, oceanography, office, preliminary, rep, treatment
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/774017/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/774017
attribute	NC_GLOBAL	param_mapping	String	{'774017': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/774017/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Akron
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UAkron
attribute	NC_GLOBAL	people_0_person_name	String	Dr Peter Lavrentyev
attribute	NC_GLOBAL	people_0_person_nid	String	555559
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 Maryland Center for Environmental Science
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	UMCES/HPL
attribute	NC_GLOBAL	people_1_person_name	String	James J. Pierson
attribute	NC_GLOBAL	people_1_person_nid	String	51109
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	University of Maryland Center for Environmental Science
attribute	NC_GLOBAL	people_2_affiliation_acronym	String	UMCES/HPL
attribute	NC_GLOBAL	people_2_person_name	String	Diane Stoecker
attribute	NC_GLOBAL	people_2_person_nid	String	50623
attribute	NC_GLOBAL	people_2_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_2_role_type	String	originator
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	DiatomAldehydes
attribute	NC_GLOBAL	projects_0_acronym	String	DiatomAldehydes
attribute	NC_GLOBAL	projects_0_description	String	Description from NSF award abstract: This project will conduct a set of field/laboratory experiments to address the following hypotheses with respect to microzooplankton (consumers between 20-200 um) and diatom- produced polyunsaturated aldehydes: I. Aldehydes will impair microzooplankton herbivory on diatoms and non-diatom phytoplankton. II. Aldehydes will reduce the growth rates of microzooplankton and non PUA-producing phytoplankton. III. In the presence of aldehyde-producing diatoms, copepods will switch to microzooplankton, whereas non- (mildly)- toxic diatoms will be an important food source for copepods. IV. The effects of aldehydes on microzooplankton and copepods will depend on the grazers' prior exposure to PUA. The experiments will include natural plankton, captured copepods, cultured Skeletonema marinoi (SM), including its aldehyde-producing strain, and synthetic aldehydes. To gain insights into complex interactions within planktonic communities, detailed information on their composition, abundance, and dynamics will be obtained using microscopy, flow-cytometry, and cytological methods. This approach will allow the PIs to draw conclusions about the role of diatom-produced aldehydes in phytoplankton-microzooplankton- copepod trophic interactions. The PIs will coordinate efforts and exchange information with the PUA study group at the Stazione Zoologica Anton Dohrn (Naples, Italy). Diatoms are dominant autotrophic plankton in the ocean. Recent evidence indicates that microzooplankton are the dominant herbivores, whereas copepods often rely on microzooplankton as food, except during peak diatom production. The ability of microzooplankton to feed on large diatoms and grow as fast as their algal prey leads to the question of what allows diatoms to escape microzooplankton grazing control during the initial phases of their blooms and maintain the blooms until nutrient resources are depleted? Allelopathy is wide spread among phytoplankton. The cosmopolitan bloom-forming SM produces several aldehydes and has become a model organism in plankton allelopathy studies. Most studies on diatom cytotoxicity have been dedicated to inhibitory effects on reproduction and development of marine invertebrates, whereas surprisingly little information exists on its impact on key diatom grazers, microzooplankton. Preliminary results in the Chesapeake Bay show that aldehydes may induce cascading effects within planktonic communities. The proposed study will: (1) Improve our knowledge of the critical diatom-microzooplankton-copepod links in the coastal ocean; (2) Generate novel data on the effects of allelopathy on marine food webs; (3) Contribute to our understanding of broader patterns of marine ecosystems by comparing plankton structure and dynamics in the temperate Atlantic waters; (4) Advance biological oceanography through international collaboration.
attribute	NC_GLOBAL	projects_0_end_date	String	2017-03
attribute	NC_GLOBAL	projects_0_name	String	The effects of diatom-produced polyunsaturated aldehydes on the microbial food web in temperate and polar waters
attribute	NC_GLOBAL	projects_0_project_nid	String	555556
attribute	NC_GLOBAL	projects_0_start_date	String	2014-04
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	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	PUA (polyunsaturated aldehydes) experiments: Chlorophyll-a concentrations, Virginia Coastal Bays and Bay of Napoli, Mar-July 2015.
attribute	NC_GLOBAL	title	String	PUA (polyunsaturated aldehydes) experiments: Chlorophyll-a concentrations, Virginia Coastal Bays and Bay of Napoli, Mar-July 2015
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	Experiment		String
attribute	Experiment	bcodmo_name	String	exp_id
attribute	Experiment	description	String	Name of the Experiment
attribute	Experiment	long_name	String	Experiment
attribute	Experiment	units	String	unitless
variable	Treatment		String
attribute	Treatment	bcodmo_name	String	treatment
attribute	Treatment	description	String	Treatment name
attribute	Treatment	long_name	String	Treatment
attribute	Treatment	units	String	unitless
variable	Rep		byte
attribute	Rep	_FillValue	byte	127
attribute	Rep	actual_range	byte	1, 3
attribute	Rep	bcodmo_name	String	replicate
attribute	Rep	description	String	Replicate number
attribute	Rep	long_name	String	Rep
attribute	Rep	units	String	unitless
variable	Chl		float
attribute	Chl	_FillValue	float	NaN
attribute	Chl	actual_range	float	0.051044, 10.13012
attribute	Chl	bcodmo_name	String	chlorophyll a
attribute	Chl	description	String	Chlorophyll a concentration determined from acetone extraction
attribute	Chl	long_name	String	CHL
attribute	Chl	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/CPHLHPP1/
attribute	Chl	units	String	micrograms/liter

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.