Dataset: light_dark_calcification

Name: Coral and algae calcification rates in varying carbonate regimes collected from the Richard B Gump Research Station during 2011, from Moorea, French Polynesia (MCR LTER project, OA_Corals project)
Published: 2012-11-22
Keywords: oceans

Cite This Dataset

Project:

Moorea Coral Reef Long-Term Ecological Research site (MCR LTER)

RUI: Ocean Acidification- Category 1- The effects of ocean acidification on the organismic biology and community ecology of corals, calcified algae, and coral reefs (OA_Corals)

Program:

Science, Engineering and Education for Sustainability NSF-Wide Investment (SEES): Ocean Acidification (formerly CRI-OA) (SEES-OA)

Long Term Ecological Research network (LTER)

Chief Scientist:

Robert Carpenter (California State University Northridge, CSUN)

Co-Chief Scientist:

Peter J. Edmunds (California State University Northridge, CSUN)

Contact:

Steeve Comeau (California State University Northridge, CSUN)

BCO-DMO Data Manager:

Danie Kinkade (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2012-11-22

Validated:

Yes

Current State:

Final no updates expected

Coral and algae calcification rates in varying carbonate regimes collected from the Richard B Gump Research Station during 2011, from Moorea, French Polynesia (MCR LTER project, OA_Corals project)

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Description

Light and dark calcification rates for the coral Porites rus and alga Hydrolithon onkode in varying carbonate chemistry conditions. These data are part of experiments performed during July/August 2011 in French Polynesia to test the effect of various concentrations of carbonate and bicarbonate ions on the calcification of a coral and a calcifying alga.

Related References:

Comeau, S., Carpenter, R. C., & Edmunds, P. J. (2013). Coral reef calcifiers buffer their response to ocean acidification using both bicarbonate and carbonate. Proceedings of the Royal Society B: Biological Sciences, 280(1753), 20122374. doi:10.1098/rspb.2012.2374

Methods & Sampling

For light and dark calcification experiments, two to three subsamples (one coral and one piece of Crustose Coralline Algae (CCA) ) from each treatment were chosen randomly at 12:00 on days 5 and 7 of the incubation, for each of the two-week trials. Samples were placed in separate 500-mL glass beakers containing 320 mL of seawater from the respective incubation tanks. As the incubations lasted 1 h, it was assumed that the variation in total alkalinity (measured before and at the end of the incubation) was due to calcification/dissolution. The stoichiometric relation of 2 moles total alkalinity (A_T) being removed for each 1 mole of CaCO₃ precipitated was used to calculate calcification both in the light and the dark.

Data Processing Description

BCO-DMO Processing Notes:

Original data file: “Raw_data_Comeau_et_al_PRSB-1.xls” contained three spreadsheets. This file was split into three separate datasets. Resultant datasets were edited in excel by BCODMO. The following edits were made to the file light_dark_calcification.dat:

-Added BCO-DMO header
    -edited 'Porites rus Light' to 'calcification_light_Porites_rus'
    -edited 'Porites rus dark calcification' to 'calcif_dark_Porites_rus'
    -edited 'Hydrolithon onkodes Light calcification' to 'calcif_light_Hydrolithon_onkodes'
    -edited 'Hydrolithon onkodes dark calcification' to 'calcif_dark_Hydrolithon_onkodes'
    -replaced spaces in 'condition' text with underscores.
-Added 'lat' and 'lon' column of experiment site (Richard B. Gump Research Site, Moorea) to file
-Added title, version and PI lines

-Added deployment ID column 'deploy_id' with "lab_Carpenter_Moorea" as a value

2012.12.07 Data contact S. Comeau submitted a revised file for light_dark_calcification which included dates. Dates were edited into 'year', 'month_local', 'day_local' components.

Data Files

File
light_dark_calcification.csv (Comma Separated Values (.csv), 4.69 KB) MD5:6e0e09bc854c0f6581076a9cdd69a945 Primary data file for dataset ID 3788

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1041270

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
lab_Carpenter_Moorea		2011-07-17	Richard B Gump Research Station - Moorea LTER	Peter J. Edmunds (Chief Scientist) Robert Carpenter (Co-Chief Scientist) Steeve Comeau (Contact)	data info

Instruments

None available yet

Parameters

Date and time formats are described in python strftime() syntax.

Supplied Name	Supplied description	Supplied Units	Standard Name
condition	Experimental treatment of various concentrations of carbonate and bicarbonate ions used to test the effects of various carbonate chemistry regimes on coral and calcifying alga.	dimensionless	no_bcodmo_term
calcif_light_Porites_rus	Calcification rates during a 1 hour light incubation for the coral Porites rus under varying carbonate chemistry conditions.	micrograms CaCO3/h/cm^2	no_bcodmo_term
calcif_dark_Porites_rus	Calcification rates during a 1 hour dark incubation for the coral Porites rus under varying carbonate chemistry conditions.	micrograms CaCO3/h/cm^2	no_bcodmo_term
calcif_light_Hydrolithon_onkodes	Calcification rates during a 1 hour light incubation for the coral Hydrolithon onkodes under varying carbonate chemistry conditions.	micrograms CaCO3/h/cm^2	no_bcodmo_term
calcif_dark_Hydrolithon_onkodes	Calcification rates during a 1 hour dark incubation for the coral Hydrolithon onkodes under varying carbonate chemistry conditions.	micrograms CaCO3/h/cm^2	no_bcodmo_term
year	Four-digit year in which experiments were conducted.	YYYY	year
month_local	Month in which experiments were conducted in local time.		month_local
day_local	Day of the month in which experiments were conducted, in local time.		day_local
deploy_id	Unique descriptor for experiments, indicating physical location where they were conducted (lab), lead investigator and lab location.	dimensionless	no_bcodmo_term

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Dataset: light_dark_calcification