Dataset: Coral transplant site environmental data

Name: Temperature and light intensity measured at each transplant site during a reciprocal transplant experiment conducted at three sites in Turneffe Atoll, Belize from February to July 2022
Published: 2024-05-28
Keywords: oceans

Cite This Dataset

DOI:10.26008/1912/bco-dmo.927918.1

Spatial Extent: N:17.288681 E:-87.81111 S:17.28717 W:-87.815167

Turneffe Atoll, Belize

Temporal Extent: 2022-02-11 - 2022-07-20

Project:

OCE-PRF: Drivers of phenotypic diversity and adaptation in asexually propagating coral populations (Adaptation in asexual coral populations)

Principal Investigator:

Karina Scavo Lord (Boston University, BU)

BCO-DMO Data Manager:

Shannon Rauch (Woods Hole Oceanographic Institution, WHOI BCO-DMO)

Version:

Version Date:

2024-05-28

Restricted:

Validated:

Yes

Current State:

Final no updates expected

Temperature and light intensity measured at each transplant site during a reciprocal transplant experiment conducted at three sites in Turneffe Atoll, Belize from February to July 2022

Abstract:

We sought to investigate the role of genetic, intra-clonal, and environmental variation in driving variation in fitness-related traits in the Caribbean thin finger coral, Porites divaricata (Taxonomy ID: 262287). We conducted a reciprocal transplant experiment whereby fragments from individual coral colonies of known genetic background were transplanted to three sites from February to July 2022. These sites included two mangrove sites and one reef site at Calabash Caye, Turneffe Atoll, Belize. Prior to and post-transplanting, fragments were measured to determine growth rate over this time. Coral fragments were also photographed to determine red channel intensity, which serves as a proxy for chlorophyll density. This dataset contains environmental information about each transplanted site over this time period, based on loggers that recorded temperature and light levels. This data was collected by scientists at the University of Texas at Austin and the University of Belize. A related dataset contains the measures of these two coral traits (coral fragment growth and chlorophyll density (red channel intensity)) for each coral individual and also contains metadata about the genotype, origin site, transplanted site, rope at transplanted site, and age.

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Archival Copy

Version Date	Archive	Persistent Identifier	Date Assigned
2024-05-28	Marine Biological Laboratory/Woods Hole Oceanographic Institution Library (MBLWHOI DLA)	10.26008/1912/bco-dmo.927918.1	2024-05-28

Methods & Sampling

Reciprocal transplant experiment:
In February 2022, 32 colonies (subclone/ramet) of the Caribbean thin finger coral, Porites divaricata (Taxonomy ID: 262287) were identified. 3 to 9 branch fragments were collected from every subclone (colony/ramet). 1 to 3 fragments from each ramet were moved to three designated sites: M1 (mangrove site 1), M2 (mangrove site 2), and R (reef site). 7 to 9 adjacent ropes were deployed at each site (seven ropes at M1 and R, and nine ropes at M2). Following a six-month period (February 2022 - July 2022), two traits were measured for each fragment: length change and red channel intensity, which serves as an inverse indicator of chlorophyll pigment density (Winters, Holzman, Blekhman, Beer, & Loya, 2009).

Environmental Measurements:
Four Onset HOBO Pendant data loggers (Onset Corporation, Bourne, MA) were deployed at the time of transplant to record both temperature (°C) and light intensity (lux) every two hours and remained there over the duration of the experiment. Lux was converted to photosynthetic photon flux density (PPFD: micromoles per square meter per second (µmol m-2 s-1)) with a standard sunlight conversion factor of 0.018.

See 'Related Datasets' for the coral trait variation data.

BCO-DMO Processing

- Imported original file "EnvironmentalSite_Data.xlsx" into the BCO-DMO system.
- Converted the date and time columns to ISO 8601 format in both (CST/CDT) and UTC time zones.
- Added columns for the site latitude and longitude.
- Removed the original date and time columns.
- Saved the final file as "927918_v1_coral_transplant_site_environmental_data.csv".

Data Files

File
927918_v1_coral_transplant_site_environmental_data.csv (Comma Separated Values (.csv), 607.20 KB) MD5:38d07ce269a508816d7d632a65957404 Primary data file for dataset ID 927918, version 1

More Information about this dataset

Funding Sources

Funding Source	Award Number
NSF Division of Ocean Sciences	OCE-2126612

Deployments

None available yet

Instruments

Onset HOBO Pendant Temperature/Light Data Logger

Supplied Name: Onset HOBO (UA-002-64) Data Logger

Supplied Description:

The environmental data (temperature and light intensity) was measured by the following instrument: Onset HOBO (UA-002-64) Data Logger Measuring Temperature and Light Intensity.

Instrument Type

Generic Name: Onset HOBO Pendant Temperature/Light Data Logger

Acronym: Onset HOBO Pendant Temp/Light

Generic Description:

The Onset HOBO (model numbers UA-002-64 or UA-001-64) is an in-situ instrument for wet or underwater applications. It supports light intensity, soil temperature, temperature, and water temperature. A two-channel logger with 10-bit resolution can record up to approximately 28,000 combined temperature and light measurements with 64K bytes memory. It has a polypropylene housing case. Uses an optical USB to transmit data. A solar radiation shield is used for measurement in sunlight. Temperature measurement range: -20 deg C to 70 deg C (temperature). Light measurement range: 0 to 320,000 lux. Temperature accuracy: +/- 0.53 deg C from 0 deg C to 50 deg C. Light accuracy: Designed for measurement of relative light levels. Water depth rating: 30 m.

Parameters

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

Supplied Name	Supplied description	Supplied Units	Standard Name
Logger	Description of site location where logger was placed: channel, island, or reef (two loggers were placed at the reef - reef_1 and reef_2)	unitless	site
Site	Site where logger was placed: M2 = mangrove site 2, M1= mangrove site 1, and R = reef (two loggers were placed at R- R_1 and R_2)	unitless	site
ISO_DateTime_Local	Date and time when the data were collected in ISO 8601 format; local time zone = CDT/CST Format: %Y-%m-%dT%H:%M	unitless	ISO_DateTime_Local
ISO_DateTime_UTC	Date and time when the data were collected in ISO 8601 format; UTC time zone Format: %Y-%m-%dT%H:%MZ	unitless	ISO_DateTime_UTC
Temp	Temperature of seawater at logging point	degrees Celsius	temp
Light	Light intensity at depth at logging point	photosynthetic photon flux density (PPFD)	light_intensity
Site_Lat	General latitude of the site (not necessarily the exact latitude where the logger was placed within the site); positive values = North	decimal degrees	lat
Site_Lon	General longitude of the site (not necessarily the exact longitude where the logger was placed within the site); negative values = West	decimal degrees	lon

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Database

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Dataset: Coral transplant site environmental data