Dataset: Heatwave Experiment: Growth Rates

Name: Coral growth rate measured during a heatwave experiment done September to November 2018 using reef building corals collected in Kāne'ohe Bay, O'ahu, Hawai'i
Published: 2023-01-31
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.884530.1

Spatial Extent: N:21.477194 E:-157.786861 S:21.429417 W:-157.833667

Temporal Extent: 2018-09-22 - 2018-11-17

Project:

NSFOCE-BSF: COLLABORATIVE RESEARCH: Elucidating adaptive potential through coral holobiont functional integration (Holobiont Integration)

Co-Principal Investigator:

Hollie Putnam (University of Rhode Island, URI)

Student:

Emma Strand (University of Rhode Island, URI)

BCO-DMO Data Manager:

Karen Soenen (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2023-01-31

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Coral growth rate measured during a heatwave experiment done September to November 2018 using reef building corals collected in Kāne'ohe Bay, O'ahu, Hawai'i

Abstract:

Two common reef-building corals, Montipora capitata and Pocillopora acuta, were collected from six sites in Kāne'ohe Bay, O'ahu, Hawai'i. Fragments were allowed to acclimate in experimental tanks for two weeks prior to exposure to one of the following four treatments: Ambient Temperature Ambient pCO2 (ATAC), Ambient Temperature High pCO2 (ATHC), High Temperature Ambient pCO2 (HTAC), and High Temperature High pCO2 (HTHC). The treatment period lasted for a two month period, starting on September 22nd, 2018 and lasting through November 17th, 2018. Following the stress period, coral fragments were exposed to a two-month recovery period in ambient conditions. Every two weeks, corals were measured for buoyant weight to calculate growth rates.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2023-01-31	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.884530.1	2023-01-31

Methods & Sampling

Corals sampled at six reefs within Kāne'ohe Bay, O'ahu, Hawai'i:

1.) USA: Hawaii HIMB: 21.436056, -157.786861
2.) USA: Hawaii Reef.11.13: 21.450806, -157.794944
3.) USA: Hawaii Reef.35.36: 21.473889, -157.833667
4.) USA: Hawaii Reef.18: 21.450806, -157.811139
5.) USA: Hawaii Lilipuna.Fringe: 21.429417, -157.791111
6.) USA: Hawaii Reef.42.43: 21.477194, -157.826889

Experiment conducted at the Hawai'i Institute of Marine Biology.

Data Processing Description

Growth over time was determined by the buoyant weight technique (Davies 1989; Jokiel and Maragos 1978), using air, freshwater, and saltwater standard temperature curves. Each coral fragment was weighed in its respective treatment temperature and pCO2 conditions. Wet buoyant weight was converted to dry mass using the aragonite density of 2.03 g cm-3 for Montipora spp. (Anthony and Hoegh-Guldberg 2003) and 2.93 g cm-3 for P. acuta (Jokiel and Maragos 1978). Rates were normalized to surface area and reported in units of mg CaCO3 cm-2 d-1.

Data Files

File
heatwave_resultsgrowth.csv (Comma Separated Values (.csv), 101.46 KB) MD5:2d4455fd33adbc569f479f4ff9f5cba3 Primary data file for dataset ID 884530

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-1756623

Deployments

None available yet

Instruments

scale

Supplied Name: Balance

Supplied Description:

Instrument Type

Generic Name: scale

Community Identifier: http://vocab.nerc.ac.uk/collection/L05/current/LAB13/

Generic Description:

An instrument used to measure weight or mass.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Plug_ID	The individual coral fragment ID number	unitless	sample
Species	Coral host species: Montipora capitata or Pocillopora acuta	unitless	species
Treatment	Temperature and pCO2 treatment exposure indication. Ambient Temperature Ambient pCO2 (ATAC), Ambient Temperature High pCO2 (ATHC), High Temperature Ambient pCO2 (HTAC), or High Temperature High pCO2 (HTHC).	unitless	treatment
Tank	The tank number that coral fragment was sampled from (12 options; 3 tanks per treatment).	unitless	tank
Temperature	Temperature treatment indication: high or ambient.	unitless	treatment
CO2	pCO2 treatment indication: high or ambient.	unitless	treatment
Site_Name	The reef location where that sample was collected (6 options total).	unitless	site
Site_Latitude	Latitude of coral sampling site, south is negative	decimal degrees	lat
Site_Longitude	Longitude of coral sampling site, west is negative	decimal degrees	lon
Timepoint	The sampling time point; at what point during the experiment was that fragment sampled (for multivariate physiology analyses)	units	time_sample
Growth_Time	Buoyant weight time point (this was done weekly).	units	time_sample
Growth_Rate	Calculated growth rate	units	growth

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Database

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Dataset: Heatwave Experiment: Growth Rates