Dataset: Porites macrobioerosion: skeleton density

Name: Porites macrobioerosion study: individual calcification rates, skeleton density, and the volume of borings in the tropical Pacific from 2011-2012 (Coral Reef Ecosystem OA Impact project)
Published: 2017-04-21
Keywords: biota, oceans

Cite This Dataset

Spatial Extent: N:20 E:-80 S:-15 W:135

Project:

Constraining Thermal Thresholds and Projections of Temperature Stress on Pacific Coral Reefs Over the 21st Century: Method Refinement and Application (Thermal Thresholds and Projections)

Toward Predicting the Impact of Ocean Acidification on Net Calcification by a Broad Range of Coral Reef Ecosystems: Identifying Patterns and Underlying Causes (Coral Reef Ecosystem OA Impact)

Program:

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

Ocean Carbon and Biogeochemistry (OCB)

Principal Investigator:

Anne L. Cohen (Woods Hole Oceanographic Institution, WHOI)

Student:

Thomas DeCarlo (Woods Hole Oceanographic Institution, WHOI)

Contact:

Anne L. Cohen (Woods Hole Oceanographic Institution, WHOI)

Thomas DeCarlo (Woods Hole Oceanographic Institution, WHOI)

BCO-DMO Data Manager:

Nancy Copley (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version Date:

2017-04-21

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Porites macrobioerosion study: individual calcification rates, skeleton density, and the volume of borings in the tropical Pacific from 2011-2012 (Coral Reef Ecosystem OA Impact project)

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Description

Using an automated program to quantify macrobioerosion in three-dimensional computerized tomography (CT) scans of coral cores, macrobioerosion rates of live Porites colonies in both low-nutrient (oligotrophic) and high-nutrient (>1 µM nitrate) waters were measured across the Pacific basin. Reported parameters include the mean annual coral calcification rate, mean skeletal density, and the percent volume of borings in the skeletons.

Methods & Sampling

Coral skeleton cores were collected from living Porites colonies with underwater pneumatic drills. Core holes in the coral colonies were plugged with cement so that the coral can grow over the plug within one year. The intact cores were CT (computerized tomography) scanned to reveal skeletal density.

References for this data:
DeCarlo, T. M., Cohen, A. L., Barkley, H. C., Cobban, Q., Young, C., Shamberger, K. E., Brainard, R.E., Golbuu, Y. (2015). Coral macrobioerosion is accelerated by ocean acidification and nutrients. Geology.

DeCarlo, T. M., Cohen, A. L., Barkley, H. C., Cobban, Q., Young, C., Shamberger, K. E., Brainard, R.E., Golbuu, Y. (2015). Supplemental information to the above publication associated with DeCarlo et al. (2015) in Geology.

Data Processing Description

An automated computer program (“coralCT”) was developed to quantify the amount of skeleton removed by bioeroding organisms. Details of the program are described in the supplemental information file associated with DeCarlo et al. (2015) in Geology.

BCO-DMO Processing:
- added conventional header with dataset name, PI name, version date, reference information
- renamed parameters to BCO-DMO standard
- replaced spaces with underscores
- added columns for nominal latitude, longitude, and region

Data Files

File
Porites_erosion_density.csv (Comma Separated Values (.csv), 6.03 KB) MD5:1d921951412a8ddd8cdae327574bbe3d Primary data file for dataset ID 688028

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1220529
NSF Division of Ocean Sciences	OCE-1031971

Deployments

Deployment	Synonyms	Start Date	Platform	Investigator
lab_Cohen_deCarlo		2011-09-01	WHOI	Anne L. Cohen (Principal Investigator) Thomas DeCarlo (Student)	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
region	general region of sampling	unitless	region
site	sampling location	unitless	site
lat	latitude; north is positive	decimal degrees	lat
lon	longitude; east is positive	decimal degrees	lon
core_id	Coral colony tag number	unitless	sample
calcification	mean annual coral calcification rate	grams/centimeter^2/year (g cm-2 yr-1)	no_bcodmo_term
density	mean skeletal density	grams/centimeter^3 (g cm-3)	density
boring_pcent	% volume of borings in skeleton	percent	no_bcodmo_term

Status message

Database

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Dataset: Porites macrobioerosion: skeleton density