Dataset: Evensen and Edmunds 2016: coral growth
Deployment: MCR_Edmunds

Growth metrics of Pocillopora verrucosa and Acropora hyacinthus corals under two pCO2 treatments

Principal Investigator:

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

Co-Principal Investigator:

Robert Carpenter (California State University Northridge, CSUN)

Technician:

Griffin Srednick (California State University Northridge, CSUN)

Megan Vaughan (California State University Northridge, CSUN)

BCO-DMO Data Manager:

Amber D. York (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Project:

Collaborative Research: Ocean Acidification and Coral Reefs: Scale Dependence and Adaptive Capacity (OA coral adaptation)

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

Data URL:

https://www.bco-dmo.org/dataset-deployment/683934/data

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Description

These data were utilized in Evensen & Edmunds, 2016.

Other datasets utilized in Evensen and Edmunds, 2016:
* Field data - coral colony interactions - https://www.bco-dmo.org/dataset/68452
* seawater chemistry - https://www.bco-dmo.org/dataset/684541

Methods & Sampling

Dataset acquisition description

Aggregates of 12 colonies were placed in one of six tanks (1 aggregate per tank) at either ambient (~400 uatm) or high (~1100 uatm) pCO2 (3 tanks per treatment) for 28 days. Buoyant weights of the corals were recorded before and after incubation. The difference between the initial and final buoyant weight was converted to dry skeletal weight using the aragonite density of 2.93 g cm-3, in accordance with the mineral form of CaCO3 deposited by Pocillopora and Acropora. Rates of net calcification (Gn) were normalized to the tissue area, which was estimated using wax dipping (Stimson and Kinzie 1991).

Flume experiments took place at Richard B. Gump South Pacific Research Station, Moorea.

Coral collection occurred in 2014 and was conducted at ‘LTER1 and LTER2’ (~1.5 km apart; n = 40 site−1 ) on the north shore of Moorea.

Deployment-specific acquisition description

Coral collection took place at:

LTER1,-17.474783,-149.834939
LTER2,-17.472056,-149.809914

Data Processing Description

Dataset Processing Description

Physical conditions in the flumes were analyzed with a two-way ANOVA, with pCO2 as a fixed
effect and flume a random factor nested in each treatment. Calcification, horizontal growth, and
vertical growth collectively were analyzed in multivariate framework using mixed effects
PERMANOVA, with pCO2 as a fixed, between plot effect, flume as a random factor nested in
each treatment, and arrangement as a fixed, split-plot effect in each flume.

BCO-DMO Data Manager Processing Notes:
* added a conventional header with dataset name, PI name, version date
* modified parameter names to conform with BCO-DMO naming conventions
* All values were rounded to three decimal places if more than that.
* latitude and longitude added for experiment location

More information about this dataset deployment

Funding

Award Number	Funding Source
OCE-1415268	NSF Division of Ocean Sciences
OCE-1415300	NSF Division of Ocean Sciences

Instruments

Automatic titrator

Supplied Name: T50

Supplied Description:

Automatic Titrator: T50, Mettler-Toledo, Switzerland

Instrument Type

Generic Name: Automatic titrator

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB12/

Generic Description:

Instruments that incrementally add quantified aliquots of a reagent to a sample until the end-point of a chemical reaction is reached.

pH Sensor

Supplied Name: Orion 3-stars

Supplied Description:

pH Sensor: Orion 3-stars, Thermo Scientific, USA, mounted with a combination pH probe (Orion Ross Ultra, Thermo Scientific, USA).

Instrument Type

Generic Name: pH Sensor

Generic Description:

An instrument that measures the hydrogen ion activity in solutions.

The overall concentration of hydrogen ions is inversely related to its pH. The pH scale ranges from 0 to 14 and indicates whether acidic (more H+) or basic (less H+).

Parameters

Supplied Name	Supplied description	Supplied Units	Standard Name
site	Location of flume; MCR is shorthand for Moorea Coral Reef Long-Term Ecological Research site	unitless	site
lat	Latitiude of site	decimal degrees	lat
lon	Longitude of site; west is negative	decimal degrees	lon
treatment	pCO2 treatment in each flume (Ambient=~400 uatm; High=~1000 uatm)	unitless	treatment
flume	Flume number (2 & 4 = ambient pCO2 treatment; 1 & 3 = high pCO2 treatment)	unitless	exp_type
arrangement	The arrangement surrounding the central P. verrucosa colonies. See acquisition description for details of arangement configurations	unitless	exp_type
coral	Reference number for the central P. verrucosa colony in each of the arrangements	unitless	individual
gn	Surface area-normalized net calcification for each central P. verrucosa colony	mg CaCO2 cm-2 d-1	calcification
horizontal_growth	Average change in diameter per day for each central P. verrucosa colony over the course of the incubation	micrometers per day (μm/d)	calcification
vertical_growth	Average change in height per day for each central P. verrucosa colony over the course of the incubation	micrometers per day (μm/d)	calcification

Database

Contribute Data

Dataset: Evensen and Edmunds 2016: coral growth
Deployment: MCR_Edmunds

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Database

Contribute Data

Dataset: Evensen and Edmunds 2016: coral growthDeployment: MCR_Edmunds

Dataset acquisition description

Deployment-specific acquisition description

Dataset Processing Description

Dataset: Evensen and Edmunds 2016: coral growth
Deployment: MCR_Edmunds