ERDDAP > info > bcodmo_dataset_489449

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	Results from experiment examining effects of 2 different isotope spikes on growth rates of scleractinian corals; from the Cohen lab at WHOI in Woods Hole, MA (OA Nutrition and Coral Calcification project)		I   M	background			BCO-DMO	bcodmo_dataset_489449

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	Methodology as described in Holcomb et al. (2013): Colonies of the temperate scleractinian coral Astrangia poculata were collected and processed as previously described. Newly settled polyps and their associated substratum were attached to slides. The slides with corals were suspended vertically in a flow-through aquarium receiving 20 micrometers filtered Vineyard Sound seawater. Corals experienced a temperature range of 14 to 30 degrees C. Aquaria were aerated, and corals were maintained under these conditions for at least one month prior to use in experiments. A mixture of brown and white colonies (zooxanthellate and azooxanthellate colonies) was used for all treatments. For the marking experiments, corals were placed in pre-washed containers with lids containing ~800 ml of water from the source aquarium. Airstones were added to each container and each container bubbled continuously. Containers were held within a water bath with a temperature similar to that of the source aquarium. Ba 135 or Sr 86 isotope spikes (purchased as carbonate salts from Oak Ridge National Lab) were used as markers in some incubations. See the \"[coral growth dye experiment](\\"https://www.bco-dmo.org/dataset/489382\\")\" dataset for results from marking experiments using one of four dyes (alizarin, alizarin complexone, calcein, and oxytetracycline). The isotope spike marking was carried out as part of long term growth experiments (see Holcomb et al. 2010 and 2012). Six to sixteen corals were used in each of the isotope spike treatments. For marking with 86Sr, 60 microliters of an 86Sr solution were added to ~800 ml seawater and the corals were incubated for two days. Growth was estimated from changes in buoyant weight (per Holcomb et al., 2010) for the 5 months prior to and the month following the isotope spike. Corals were held at one of two temperatures: ~19 or ~26 degrees C throughout that six month period. Spikes with 135Ba were carried out in a flow-through aquarium system (see Holcomb et al., 2012). Each reservoir supplying water to individual aquaria was spiked with 81 microliters of 135Ba solution per liter of seawater. The aquaria received spiked seawater for two days, after which unspiked seawater was added to the reservoir, diluting the spike. Buoyant weights were measured for the two months prior and one month following isotope exposure using a Sartorius G803S balance, and the aquaria were held at either 16 or 24 degrees C throughout this time.
attribute	NC_GLOBAL	awards_0_award_nid	String	54896
attribute	NC_GLOBAL	awards_0_award_number	String	OCE-1041106
attribute	NC_GLOBAL	awards_0_data_url	String	http://www.nsf.gov/awardsearch/showAward.do?AwardNumber=1041106
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	Coral growth (species <i>Astrangia poculata</i>) isotope spike experiments PI: Anne Cohen (WHOI) Contact: Michael Holcomb Version: 31 Jan 2014
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	2014-02-03T18:09:56Z
attribute	NC_GLOBAL	date_modified	String	2019-11-14T19:52:59Z
attribute	NC_GLOBAL	defaultDataQuery	String	&amp;time&lt;now
attribute	NC_GLOBAL	doi	String	10.1575/1912/bco-dmo.489449.1
attribute	NC_GLOBAL	infoUrl	String	https://www.bco-dmo.org/dataset/489449
attribute	NC_GLOBAL	institution	String	BCO-DMO
attribute	NC_GLOBAL	instruments_0_acronym	String	Aquarium
attribute	NC_GLOBAL	instruments_0_dataset_instrument_nid	String	489462
attribute	NC_GLOBAL	instruments_0_description	String	Aquarium - a vivarium consisting of at least one transparent side in which water-dwelling plants or animals are kept
attribute	NC_GLOBAL	instruments_0_instrument_name	String	Aquarium
attribute	NC_GLOBAL	instruments_0_instrument_nid	String	711
attribute	NC_GLOBAL	instruments_0_supplied_name	String	Aquarium
attribute	NC_GLOBAL	instruments_1_acronym	String	Scale
attribute	NC_GLOBAL	instruments_1_dataset_instrument_description	String	Buoyant weights were measured using a Sartorius G803S balance.
attribute	NC_GLOBAL	instruments_1_dataset_instrument_nid	String	489464
attribute	NC_GLOBAL	instruments_1_description	String	An instrument used to measure weight or mass.
attribute	NC_GLOBAL	instruments_1_instrument_external_identifier	String	https://vocab.nerc.ac.uk/collection/L05/current/LAB13/
attribute	NC_GLOBAL	instruments_1_instrument_name	String	Scale
attribute	NC_GLOBAL	instruments_1_instrument_nid	String	714
attribute	NC_GLOBAL	instruments_1_supplied_name	String	Balance
attribute	NC_GLOBAL	keywords	String	bco, bco-dmo, biological, chemical, data, dataset, dmo, erddap, growth, growth_rate_post, growth_rate_pre, management, oceanography, office, post, pre, preliminary, rate, treatment
attribute	NC_GLOBAL	license	String	https://www.bco-dmo.org/dataset/489449/license
attribute	NC_GLOBAL	metadata_source	String	https://www.bco-dmo.org/api/dataset/489449
attribute	NC_GLOBAL	param_mapping	String	{'489449': {}}
attribute	NC_GLOBAL	parameter_source	String	https://www.bco-dmo.org/mapserver/dataset/489449/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	Anne L Cohen
attribute	NC_GLOBAL	people_0_person_nid	String	51428
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
attribute	NC_GLOBAL	people_1_person_name	String	Michael Holcomb
attribute	NC_GLOBAL	people_1_person_nid	String	489381
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	OA Nutrition and Coral Calcification
attribute	NC_GLOBAL	projects_0_acronym	String	OA Nutrition and Coral Calcification
attribute	NC_GLOBAL	projects_0_description	String	The project description is a modification of the original NSF award abstract. This research project is part of the larger NSF funded CRI-OA collaborative research initiative and was funded as an Ocean Acidification-Category 1, 2010 award. Over the course of this century, all tropical coral reef ecosystems, whether fringing heavily populated coastlines or lining remote islands and atolls, face unprecedented threat from ocean acidification caused by rising levels of atmospheric CO2. In many laboratory experiments conducted to date, calcium carbonate production (calcification) by scleractinian (stony) corals showed an inverse correlation to seawater saturation state OMEGAar), whether OMEGAar was manipulated by acid or CO2 addition. Based on these data, it is predicted that coral calcification rates could decline by up to 80% of modern values by the end of this century. A growing body of new experimental data however, suggests that the coral calcification response to ocean acidification may be less straightforward and a lot more variable than previously recognized. In at least 10 recent experiments including our own, 8 different tropical and temperate species reared under nutritionally-replete but significantly elevated CO2 conditions (780-1200 ppm, OMEAGar ~1.5-2), continued to calcify at rates comparable to conspecifics reared under ambient CO2. These experimental results are consistent with initial field data collected on reefs in the eastern Pacific and southern Oman, where corals today live and accrete their skeletons under conditions equivalent to 2X and 3X pre-industrial CO2. On these high CO2, high nutrient reefs (where nitrate concentrations typically exceed 2.5 micro-molar), coral growth rates rival, and sometimes even exceed, those of conspecifics in low CO2, oligotrophic reef environments. The investigators propose that a coral's energetic status, tightly coupled to the availability of inorganic nutrients and/or food, is a key factor in the calcification response to CO2-induced ocean acidification. Their hypothesis, if confirmed by the proposed laboratory investigations, implies that predicted changes in coastal and open ocean nutrient concentrations over the course of this century, driven by both climate impacts on ocean stratification and by increased human activity in coastal regions, could play a critical role in exacerbating and in some areas, modulating the coral reef response to ocean acidification. This research program builds on the investigators initial results and observations. The planned laboratory experiments will test the hypothesis that: (1) The coral calcification response to ocean acidification is linked to the energetic status of the coral host. The relative contribution of symbiont photosynthesis and heterotrophic feeding to a coral's energetic status varies amongst species. Enhancing the energetic status of corals reared under high CO2, either by stimulating photosynthesis with inorganic nutrients or by direct heterotrophic feeding of the host lowers the sensitivity of calcification to decreased seawater OMEGAar; (2) A species-specific threshold CO2 level exists over which enhanced energetic status can no longer compensate for decreased OMEGAar of the external seawater. Similarly, we will test the hypothesis that a nutrient threshold exists over which nutrients become detrimental for calcification even under high CO2 conditions; and (3) Temperature-induced reduction of algal symbionts is one stressor that can reduce the energetic reserve of the coral host and exacerbate the calcification response to ocean acidification. The investigator's initial findings highlight the critical importance of energetic status in the coral calcification response to ocean acidification. Verification of these findings in the laboratory, and identification of nutrient and CO2 thresholds for a range of species will have immediate, direct impact on predictions of reef resilience in a high CO2 world. The research project brings together a diverse group of expertise in coral biogeochemistry, chemical oceanography, molecular biology and coral reproductive ecology to focus on a problem that has enormous societal, economic and conservation relevance.
attribute	NC_GLOBAL	projects_0_end_date	String	2013-09
attribute	NC_GLOBAL	projects_0_geolocation	String	global; experimental
attribute	NC_GLOBAL	projects_0_name	String	An Investigation of the Role of Nutrition in the Coral Calcification Response to Ocean Acidification
attribute	NC_GLOBAL	projects_0_project_nid	String	2183
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	standard_name_vocabulary	String	CF Standard Name Table v55
attribute	NC_GLOBAL	summary	String	Results from experiment examining effects of 2 different isotope spikes on growth rates of scleractinian corals; from the Cohen lab at WHOI in Woods Hole, MA.
attribute	NC_GLOBAL	title	String	Results from experiment examining effects of 2 different isotope spikes on growth rates of scleractinian corals; from the Cohen lab at WHOI in Woods Hole, MA (OA Nutrition and Coral Calcification project)
attribute	NC_GLOBAL	version	String	1
attribute	NC_GLOBAL	xml_source	String	osprey2erddap.update_xml() v1.3
variable	treatment		String
attribute	treatment	bcodmo_name	String	treatment
attribute	treatment	description	String	Experimental treatment: combination of water temperature and isotope spike used to mark the coral. Corals marked with 86Sr were held at either 19 or 26 degrees Celsius. Corals marked with 135Ba were held at either 16 or 24 degrees Celsius.
attribute	treatment	long_name	String	Treatment
attribute	treatment	units	String	dimensionless
variable	growth_rate_pre		float
attribute	growth_rate_pre	_FillValue	float	NaN
attribute	growth_rate_pre	actual_range	float	2.38195E-4, 0.004602512
attribute	growth_rate_pre	bcodmo_name	String	unknown
attribute	growth_rate_pre	description	String	Relative coral growth pre-treatment. For 86Sr, growth was estimated from changes in buoyant weight (per Holcomb et al., 2010) for the 5 months prior to and the month following the isotope spike. For 135Ba, growth was estimated from changes in buoyant weight for the 2 months prior and one month following isotope exposure.
attribute	growth_rate_pre	long_name	String	Growth Rate Pre
attribute	growth_rate_pre	units	String	dimensionless
variable	growth_rate_post		float
attribute	growth_rate_post	_FillValue	float	NaN
attribute	growth_rate_post	actual_range	float	-6.59826E-4, 0.005540855
attribute	growth_rate_post	bcodmo_name	String	unknown
attribute	growth_rate_post	description	String	Relative coral growth post-treatment. For 86Sr, growth was estimated from changes in buoyant weight (per Holcomb et al., 2010) for the 5 months prior to and the month following the isotope spike. For 135Ba, growth was estimated from changes in buoyant weight for the 2 months prior and one month following isotope exposure.
attribute	growth_rate_post	long_name	String	Growth Rate Post
attribute	growth_rate_post	units	String	dimensionless

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.