ERDDAP > info > bcodmo_dataset_679946

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	[Benguela Current Ecosystem path analysis] - Path analysis, run in Stata v. 11.1, for direct/ indirect effects of upwelling on seabirds; data were collected at Dassen and Robben Islands, Malgas Island and in Lamberts Bay, South Africa (Climate Change and Upwelling -- Comparative Analysis of Current and Future Responses of the California and Benguela Ecosystems)		I   M	background			BCO-DMO	bcodmo_dataset_679946

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	These data include total anchovy and sardine biomass west and southeast of Cape Agulhas (sampled in November), and anchovy and sardine recruitment west of Cape Infanta (sampled in May). Seabird variables included % of the diet comprised of anchovy, % of the diet comprised of sardine, breeding success, and survival. African penguin data were collected at Dassen and Robben Islands, South Africa. Cape gannets data were collected at colonies on Malgas Island and in Lamberts Bay, South Africa. These variables were entered into path analyses, run in Stata v. 11.1 (StataCorp). Path models were designed a priori with upwelling as the base predictor variable, fish biomass (both species) and anchovy recruitment as intermediate predictors, and a seabird metric as the response variable. Path analysis produces beta coefficients for each path segment of the model. To determine the dominant path of effect, the beta coefficients for each indirect path were multiplied together, then summed. This sum of the products of all of the indirect paths was compared to the beta coefficient of the direct path of effect. The greater value indicated if the dominant path was direct or indirect. If indirect, the path with the largest beta coefficient product was considered the dominant path of the model. Note that fish biomass, and anchovy recruitment data were ln-transformed prior to analysis. Anchovy and sardine biomass were lagged one year for analyses of penguin responses, to precede the penguin breeding season when those measurements were collected.
attribute	NC_GLOBAL	awards_0_award_nid	String	564664
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1434732
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1434732
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	Benguela Current Ecosystem Path Analysis PI: Bryan Black (Marine Science Institute, UT Austin) Co-PIs: William Sydeman & Marisol Garcia Reyes (Farallon Institute), Steven Bograd (NOAA SWFSC) Version: 01 Feb 2017
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	2017-02-01T20:53:45Z
attribute	NC_GLOBAL	date_modified	String	2019-08-05T16:35:33Z
attribute	NC_GLOBAL	defaultDataQuery	String	&time<now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.679946.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/679946
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	keywords	String	anc, anc_recruitment, anc_tot_biomass, ap_di_anc_pcnt_diet, ap_di_bs, ap_di_sar_pcnt_diet, ap_di_surv, ap_ri_anc_pcnt_diet, ap_ri_bs, ap_ri_sar_pcnt_diet, ap_ri_surv, aperture, bco, bco-dmo, biological, biomass, cg_lb_anc_pcnt_diet, cg_lb_bs, cg_lb_sar_pcnt_diet, cg_lb_surv, cg_mi_anc_pcnt_diet, cg_mi_bs, cg_mi_sar_pcnt_diet, cg_mi_surv, chemical, data, dataset, diet, dmo, erddap, management, oceanography, office, pcnt, preliminary, radar, recruitment, sar, sar_tot_biomass, sardine, sardine_recruitment, surv, synthetic, tot, year
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/679946/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/679946
attribute	NC_GLOBAL	param_mapping	String	{'679946': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/679946/parameters
attribute	NC_GLOBAL	people_0_affiliation	String	University of Texas at Austin
attribute	NC_GLOBAL	people_0_affiliation_acronym	String	UT Austin
attribute	NC_GLOBAL	people_0_person_name	String	Bryan Black
attribute	NC_GLOBAL	people_0_person_nid	String	51409
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	National Oceanic and Atmospheric Administration - Southwest Fisheries Science Center
attribute	NC_GLOBAL	people_1_affiliation_acronym	String	NOAA SWFSC ERD
attribute	NC_GLOBAL	people_1_person_name	String	Steven Bograd
attribute	NC_GLOBAL	people_1_person_nid	String	51411
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	Farallon Institute for Advanced Ecosystem Research
attribute	NC_GLOBAL	people_2_person_name	String	Marisol Garcia Reyes
attribute	NC_GLOBAL	people_2_person_nid	String	674985
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	Farallon Institute for Advanced Ecosystem Research
attribute	NC_GLOBAL	people_3_person_name	String	William Sydeman
attribute	NC_GLOBAL	people_3_person_nid	String	51410
attribute	NC_GLOBAL	people_3_role	String	Co-Principal Investigator
attribute	NC_GLOBAL	people_3_role_type	String	originator
attribute	NC_GLOBAL	people_4_affiliation	String	Farallon Institute for Advanced Ecosystem Research
attribute	NC_GLOBAL	people_4_person_name	String	William Sydeman
attribute	NC_GLOBAL	people_4_person_nid	String	51410
attribute	NC_GLOBAL	people_4_role	String	Contact
attribute	NC_GLOBAL	people_4_role_type	String	related
attribute	NC_GLOBAL	people_5_affiliation	String	Woods Hole Oceanographic Institution
attribute	NC_GLOBAL	people_5_affiliation_acronym	String	WHOI BCO-DMO
attribute	NC_GLOBAL	people_5_person_name	String	Shannon Rauch
attribute	NC_GLOBAL	people_5_person_nid	String	51498
attribute	NC_GLOBAL	people_5_role	String	BCO-DMO Data Manager
attribute	NC_GLOBAL	people_5_role_type	String	related
attribute	NC_GLOBAL	project	String	CalBenJI
attribute	NC_GLOBAL	projects_0_acronym	String	CalBenJI
attribute	NC_GLOBAL	projects_0_description	String	Desciption from NSF award abstract: Along the west coasts of North and South America, Africa, and Iberia, alongshore equatorward winds bring nutrient-rich waters to the sunlit surface of the ocean, stimulating phytoplankton blooms that support robust, rich and diverse ecosystems. This process is known as "upwelling". Because upwelling is driven by winds, and winds are related to atmospheric conditions, upwelling is highly vulnerable to the effects of climate change. However, the potential impacts of climate change on upwelling and biology remain largely uncertain. In earlier work in the California Current upwelling system, off the west coast of the United States, researchers found that upwelling occurs in distinct winter and summer "modes" that have different impacts on biology. In this project, oceanographic and atmospheric data from the Benguela Current system, off South Africa and Namibia, will be analyzed for similar seasonal patterns and relationships with the ecosystem. Comparisons between these two upwelling systems will allow researchers to investigate if previous findings of regional climate impacts on biology are applicable at a global scale and consider how these systems may change in the future. The project will facilitate collaboration between researchers from South Africa, Namibia, and the United States, integrating a team of young and senior scientists from the three countries and providing them with opportunities for broad-scale scientific synthesis early in their careers. This project will be a comparative analyses of climate forcing and biological responses in the California Current (CCS) and Benguela Current systems (BCS), the two upwelling systems with the most similar time series of atmospheric and oceanographic conditions, seabird demography, and lower (chlorophyll) and mid (forage fish) trophic data. The project will determine whether changes in the ecosystems can be attributed to regional or global climate processes. Growth-increment chronologies from fish in the BCS (deep-water hake) will be developed as indicators of upper-trophic fish growth, and compared to rockfish growth chronologies developed in the CCS. Mid-trophic level fish abundance will be modeled as indices of prey availability for integration between climate and upper-trophic-level parameters. Oceanographic and atmospheric data will be analyzed from global observational and reanalysis data sets, as well as from earth system model projections of climate change. The project will address the following questions: 1) are seasonal upwelling modes (winter and summer) discernible in the BCS as they are in the CCS? 2) are upwelling modes forced by similar or contrasting atmospheric forcing mechanisms? 3) is there evidence of coherence/covariance among mid-trophic fish, upper-trophic fish, and seabirds (and at which lags) within and between the CCS and BCS? 4) will the positioning and amplitude of the atmospheric pressure systems that result in upwelling-favorable winds change coherently between ecosystems under various climate-change scenarios? and 5) what are the fisheries and wildlife management implications for variability in the seasonality and spatial distribution of upwelling in a changing climate?
attribute	NC_GLOBAL	projects_0_end_date	String	2016-08
attribute	NC_GLOBAL	projects_0_geolocation	String	California Current Ecosystem and Benguela Current Ecosystem
attribute	NC_GLOBAL	projects_0_name	String	Climate Change and Upwelling -- Comparative Analysis of Current and Future Responses of the California and Benguela Ecosystems
attribute	NC_GLOBAL	projects_0_project_nid	String	564665
attribute	NC_GLOBAL	projects_0_start_date	String	2014-09
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	Path analysis, run in Stata v. 11.1, for direct/indirect effects of upwelling on seabirds; data were collected at Dassen and Robben Islands, Malgas Island and in Lamberts Bay, South Africa.
attribute	NC_GLOBAL	title	String	[Benguela Current Ecosystem path analysis] - Path analysis, run in Stata v. 11.1, for direct/indirect effects of upwelling on seabirds; data were collected at Dassen and Robben Islands, Malgas Island and in Lamberts Bay, South Africa (Climate Change and Upwelling -- Comparative Analysis of Current and Future Responses of the California and Benguela Ecosystems)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	year		short
attribute	year	_FillValue	short	32767
attribute	year	actual_range	short	1978, 2015
attribute	year	bcodmo_name	String	year
attribute	year	description	String	4-digit year of sampling
attribute	year	long_name	String	Year
attribute	year	nerc_identifier	String	https://vocab.nerc.ac.uk/collection/P01/current/YEARXXXX/
attribute	year	units	String	unitless
variable	anc_tot_biomass		double
attribute	anc_tot_biomass	_FillValue	double	NaN
attribute	anc_tot_biomass	actual_range	double	162048.4866, 6720286.963
attribute	anc_tot_biomass	bcodmo_name	String	biomass
attribute	anc_tot_biomass	description	String	Total anchovy biomass for the southwestern Benguela Current Ecosystem along the west coast of South Africa southeast through Cape Agulhas. Sampling season: November.
attribute	anc_tot_biomass	long_name	String	Anc Tot Biomass
attribute	anc_tot_biomass	units	String	tons
variable	sar_tot_biomass		float
attribute	sar_tot_biomass	_FillValue	float	NaN
attribute	sar_tot_biomass	actual_range	float	0.045, 4.206
attribute	sar_tot_biomass	bcodmo_name	String	biomass
attribute	sar_tot_biomass	description	String	Total sardine biomass for the southwestern Benguela Current Ecosystem along the west coast of South Africa southeast through Cape Agulhas. Sampling season: November.
attribute	sar_tot_biomass	long_name	String	Sar Tot Biomass
attribute	sar_tot_biomass	units	String	millions of tons
variable	anc_recruitment		float
attribute	anc_recruitment	_FillValue	float	NaN
attribute	anc_recruitment	actual_range	float	25.771, 627.2
attribute	anc_recruitment	bcodmo_name	String	unknown
attribute	anc_recruitment	description	String	Total anchovy recruitment for the southwestern Benguela Current Ecosystem along the west coast of South Africa southeast through Cape Infanta. Sampling season: May.
attribute	anc_recruitment	long_name	String	Anc Recruitment
attribute	anc_recruitment	units	String	billions of fish
variable	sardine_recruitment		float
attribute	sardine_recruitment	_FillValue	float	NaN
attribute	sardine_recruitment	actual_range	float	0.439, 60.065
attribute	sardine_recruitment	bcodmo_name	String	unknown
attribute	sardine_recruitment	description	String	Total sardine recruitment for the southwestern Benguela Current Ecosystem along the west coast of South Africa southeast through Cape Infanta. Sampling season: May.
attribute	sardine_recruitment	long_name	String	Sardine Recruitment
attribute	sardine_recruitment	units	String	billions of fish
variable	ap_di_anc_pcnt_diet		float
attribute	ap_di_anc_pcnt_diet	_FillValue	float	NaN
attribute	ap_di_anc_pcnt_diet	actual_range	float	24.9, 98.8
attribute	ap_di_anc_pcnt_diet	bcodmo_name	String	mass
attribute	ap_di_anc_pcnt_diet	description	String	Percent of the Dassen Island African penguin diet mass that was anchovy
attribute	ap_di_anc_pcnt_diet	long_name	String	Ap Di Anc Pcnt Diet
attribute	ap_di_anc_pcnt_diet	units	String	percent (%)
variable	ap_di_sar_pcnt_diet		float
attribute	ap_di_sar_pcnt_diet	_FillValue	float	NaN
attribute	ap_di_sar_pcnt_diet	actual_range	float	0.0, 32.2
attribute	ap_di_sar_pcnt_diet	bcodmo_name	String	mass
attribute	ap_di_sar_pcnt_diet	description	String	Percent of the Dassen Island African penguin diet mass that was sardine
attribute	ap_di_sar_pcnt_diet	long_name	String	Ap Di Sar Pcnt Diet
attribute	ap_di_sar_pcnt_diet	units	String	percent (%)
variable	ap_di_bs		float
attribute	ap_di_bs	_FillValue	float	NaN
attribute	ap_di_bs	actual_range	float	0.651, 1.376
attribute	ap_di_bs	bcodmo_name	String	unknown
attribute	ap_di_bs	description	String	Dassen Island African penguin breeding success
attribute	ap_di_bs	long_name	String	Ap Di Bs
attribute	ap_di_bs	units	String	number of chicks fledged/pair
variable	ap_di_surv		float
attribute	ap_di_surv	_FillValue	float	NaN
attribute	ap_di_surv	actual_range	float	0.43, 0.824
attribute	ap_di_surv	bcodmo_name	String	unknown
attribute	ap_di_surv	description	String	Dassen Island African penguin adult survival (fraction surviving)
attribute	ap_di_surv	long_name	String	Ap Di Surv
attribute	ap_di_surv	units	String	unitless (fraction)
variable	ap_ri_anc_pcnt_diet		float
attribute	ap_ri_anc_pcnt_diet	_FillValue	float	NaN
attribute	ap_ri_anc_pcnt_diet	actual_range	float	33.1, 98.3
attribute	ap_ri_anc_pcnt_diet	bcodmo_name	String	mass
attribute	ap_ri_anc_pcnt_diet	description	String	Percent of the Robben Island African penguin diet mass that was anchovy
attribute	ap_ri_anc_pcnt_diet	long_name	String	Ap Ri Anc Pcnt Diet
attribute	ap_ri_anc_pcnt_diet	units	String	percent (%)
variable	ap_ri_sar_pcnt_diet		float
attribute	ap_ri_sar_pcnt_diet	_FillValue	float	NaN
attribute	ap_ri_sar_pcnt_diet	actual_range	float	0.0, 12.1
attribute	ap_ri_sar_pcnt_diet	bcodmo_name	String	mass
attribute	ap_ri_sar_pcnt_diet	description	String	Percent of the Robben Island African penguin diet mass that was sardine
attribute	ap_ri_sar_pcnt_diet	long_name	String	Ap Ri Sar Pcnt Diet
attribute	ap_ri_sar_pcnt_diet	units	String	percent (%)
variable	ap_ri_bs		float
attribute	ap_ri_bs	_FillValue	float	NaN
attribute	ap_ri_bs	actual_range	float	0.319, 0.968
attribute	ap_ri_bs	bcodmo_name	String	unknown
attribute	ap_ri_bs	description	String	Robben Island African penguin breeding success
attribute	ap_ri_bs	long_name	String	Ap Ri Bs
attribute	ap_ri_bs	units	String	number of chicks fledged/pair
variable	ap_ri_surv		float
attribute	ap_ri_surv	_FillValue	float	NaN
attribute	ap_ri_surv	actual_range	float	0.464, 0.998
attribute	ap_ri_surv	bcodmo_name	String	unknown
attribute	ap_ri_surv	description	String	Robben Island African penguin adult survival (fraction surviving)
attribute	ap_ri_surv	long_name	String	Ap Ri Surv
attribute	ap_ri_surv	units	String	unitless (fraction)
variable	cg_lb_anc_pcnt_diet		float
attribute	cg_lb_anc_pcnt_diet	_FillValue	float	NaN
attribute	cg_lb_anc_pcnt_diet	actual_range	float	1.5, 83.1
attribute	cg_lb_anc_pcnt_diet	bcodmo_name	String	mass
attribute	cg_lb_anc_pcnt_diet	description	String	Percent of the Lamberts Bay Cape gannett diet mass that was anchovy
attribute	cg_lb_anc_pcnt_diet	long_name	String	Cg Lb Anc Pcnt Diet
attribute	cg_lb_anc_pcnt_diet	units	String	percent (%)
variable	cg_lb_sar_pcnt_diet		float
attribute	cg_lb_sar_pcnt_diet	_FillValue	float	NaN
attribute	cg_lb_sar_pcnt_diet	actual_range	float	2.5, 66.5
attribute	cg_lb_sar_pcnt_diet	bcodmo_name	String	mass
attribute	cg_lb_sar_pcnt_diet	description	String	Percent of the Lamberts Bay Cape gannett diet mass that was sardine
attribute	cg_lb_sar_pcnt_diet	long_name	String	Cg Lb Sar Pcnt Diet
attribute	cg_lb_sar_pcnt_diet	units	String	percent (%)
variable	cg_lb_bs		float
attribute	cg_lb_bs	_FillValue	float	NaN
attribute	cg_lb_bs	actual_range	float	0.0, 0.982
attribute	cg_lb_bs	bcodmo_name	String	unknown
attribute	cg_lb_bs	description	String	Lamberts Bay Cape gannett breeding success
attribute	cg_lb_bs	long_name	String	CG LB BS
attribute	cg_lb_bs	units	String	number of chicks fledged/pair
variable	cg_lb_surv		float
attribute	cg_lb_surv	_FillValue	float	NaN
attribute	cg_lb_surv	actual_range	float	0.768, 0.901
attribute	cg_lb_surv	bcodmo_name	String	unknown
attribute	cg_lb_surv	description	String	Lamberts Bay Cape gannett adult survival (fraction surviving)
attribute	cg_lb_surv	long_name	String	Cg Lb Surv
attribute	cg_lb_surv	units	String	unitless (fraction)
variable	cg_mi_anc_pcnt_diet		float
attribute	cg_mi_anc_pcnt_diet	_FillValue	float	NaN
attribute	cg_mi_anc_pcnt_diet	actual_range	float	0.8, 46.5
attribute	cg_mi_anc_pcnt_diet	bcodmo_name	String	mass
attribute	cg_mi_anc_pcnt_diet	description	String	Percent of the Malgas Island Cape gannett diet mass that was anchovy
attribute	cg_mi_anc_pcnt_diet	long_name	String	Cg Mi Anc Pcnt Diet
attribute	cg_mi_anc_pcnt_diet	units	String	percent (%)
variable	cg_mi_sar_pcnt_diet		float
attribute	cg_mi_sar_pcnt_diet	_FillValue	float	NaN
attribute	cg_mi_sar_pcnt_diet	actual_range	float	1.0, 64.1
attribute	cg_mi_sar_pcnt_diet	bcodmo_name	String	mass
attribute	cg_mi_sar_pcnt_diet	description	String	Percent of the Malgas Island Cape gannett diet mass that was sardine
attribute	cg_mi_sar_pcnt_diet	long_name	String	Cg Mi Sar Pcnt Diet
attribute	cg_mi_sar_pcnt_diet	units	String	percent (%)
variable	cg_mi_bs		float
attribute	cg_mi_bs	_FillValue	float	NaN
attribute	cg_mi_bs	actual_range	float	0.0, 0.819
attribute	cg_mi_bs	bcodmo_name	String	unknown
attribute	cg_mi_bs	description	String	Malgas Island Cape gannett breeding success
attribute	cg_mi_bs	long_name	String	Cg Mi Bs
attribute	cg_mi_bs	units	String	number of chicks fledged/pair
variable	cg_mi_surv		float
attribute	cg_mi_surv	_FillValue	float	NaN
attribute	cg_mi_surv	actual_range	float	0.761, 0.947
attribute	cg_mi_surv	bcodmo_name	String	unknown
attribute	cg_mi_surv	description	String	Malgas Island Cape gannett adult survival (fraction surviving)
attribute	cg_mi_surv	long_name	String	Cg Mi Surv
attribute	cg_mi_surv	units	String	unitless (fraction)

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.