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Data from: Effects of an extreme marine heatwave on Siderastrea siderea in Panama

Glass, Benjamin 1 ; Davies, Sarah1

Published Apr 15, 2026 on Dryad. https://doi.org/10.5061/dryad.573n5tbnv

Data files

Apr 15, 2026 version files 32.55 MB

16S_metadata.csv

57.31 KB
Bocas_weather_station_temperature_data.csv

17.40 MB
Health_status_data.csv

19.18 KB
Panama_heatwave_symbioses.Rmd

91.26 KB
PostMED_abs_abundance.csv

720.49 KB
PostMED_relative_abundance.csv

814.48 KB
README.md

3.27 KB
Site_temperature_data.csv

13.44 MB

Abstract

The repository includes data and code pertaining to a project investigating the effects of a marine heatwave on the reef-building coral Sidereastrea siderea in Panama. Data in the repository include those pertaining to the health status of S. siderea corals, which includes bleaching and disease status and partial mortality for fate-tracked colonies at several time points. Additionally, the repository contains data resulting from ITS2 metabarcoding of coral endosymbiont (Symbiodiniaceae) communities, which were preprocessed using SymPortal (Hume et al., 2019). Data are also included pertaining to seawater temperatures measured using in situ data loggers at four reef sites across Almirante Bay, Bocas del Toro, Panama. All repository components are available for reuse without restriction.

Dataset includes files for data associated with manuscript by Glass et al.

Data and file structure

File 1: Health_status_data.csv

This file is for data pertaining to the health of S. siderea colonies over time.

This file has headers, which are:

Year = year during which data were collected
Site = geographical location (i.e., study site) where colony was located
Coral_ID = unique identifying number for each coral colony
Bleaching_status = visually assigned coral bleaching status (pigmented, partially bleached, or fully bleached)
Percent_mortality_since_2022 = colony-level tissue loss expressed as percent since 2022, scored visually in 10% intervals
Signs_of_disease = whether colony displayed dark purple tissue discoloration indicative of dark spot syndrome

Files 2 and 3: PostMED_abs_abundance.csv and PostMED_relative_abundance.csv

This file is for data pertaining to the absolute (abs) and relative abundances of algal symbiont sequences in corals quantified through ITS2 amplicon sequencing.

This file has headers, which are:

Sample_ID = unique sample ID
Year = year during which data were collected
Coral_ID = unique identifying number for each coral colony
Site = geographical location (i.e., study site) where colony was located
A3–D2u = names of each symbiont sequence

Other columns were not used in analyses.

File 4: Site_temperature_data.csv

This file contains temperature data from the study sites recorded using in situ loggers.

This file has headers, which are:

Site = the name of the study site from which data were collected
Date_time = the date and time of the temperature measurement
Temperature_C = seawater temperature in °C

Other columns were not used in analyses.

File 5: 16S_metadata.csv

This file contains sample metadata associated with 16S rRNA gene sequencing data.

This file has headers, which are:

Sample_ID = unique sample ID
Year = year during which data were collected
Coral_ID = unique identifying number for each coral colony
Site = geographical location (i.e., study site) where colony was located

Other columns were not used in analyses.

File 6: Bocas_weather_station_temperature_data.csv

This file contains temperature data from a weather station present in Bocas del Toro near the Smithsonian Tropical Research Institute.

This file has headers, which are:

Date_time = the date and time of the temperature measurement
Temperature_C = seawater temperature in °C

Sharing/Access information

Links to other publicly accessible locations of the data:

NA

Data was derived from the following sources:

Files 2 and 3 were derived from analysis of raw ITS2 amplicon sequencing data using SymPortal (Hume et al., 2019 Molecular Ecology)
File 4 was derived from data compiled by Gantt et al. (2025) Coral Reefs
File 6 was derived from data collected by the Smithsonian Tropical Research Institute and downloaded from the Institute website (https://stri.si.edu/).

Code/Software

File 1: Panama_heatwave_symbioses.Rmd

This file contains code in R Markdown format for producing analyses and visualizations of the data.