Research Data

Thermosensitive period of sex determination in the coral reef damselfish Acanthochromis polyacanthus and the implications of projected ocean warming

Details

Print this Page Print this Page
Show all sections
General
Title
Thermosensitive period of sex determination in the coral reef damselfish Acanthochromis polyacanthus and the implications of projected ocean warming
Type
Dataset
Date Record Created
2016-07-26
Date Record Modified
2018-01-03
Language
English
Coverage
Date Coverage
2015 to 2015
Time Period
(no information)
Geospatial Location
  • Palm Island Region, Queensland, Australia
  • Central Great Barrier Reef, Australia
  • 18°37′06″S, 146°29′37″E
Description
Descriptions
  1. Type: full

    This dataset contains temperature dependent sex ratio and length/weight data for coral reef damselfish Acanthochromis polyacanthus from the central Great Barrier Reef, Australia. We exposed juvenile spiny chromis (Acanthochromis polyacanthus) from the central Great Barrier Reef (Palm Island group) to temperatures 1.5 and 3 ˚C higher than summer average temperatures at different stages of development. This allowed us to determine the period within which temperature can influence sex determination for this population (thermosensitive period; TSP). Two experimental temperature treatments were tested; +1.5 ˚C (30.0 ˚C) and +3 ˚C (31.5 ˚C) above current-day summer (December) temperatures. A single-shift design was used to determine the length of the TSP. In the shift design used for this study, test subjects commenced development at a temperature expected to produce a balanced sex ratio (current average environmental temperature). Groups of subjects (shift groups) were then transferred at sequential times during development to test temperatures expected to produce a biased sex ratio. If no bias in sex ratio was observed for a shift group at the end of the experimental period, this indicated that the TSP had ended prior to that group’s transfer time. Each clutch was split evenly between the two temperature treatments (+1.5 and +3 ˚C) and then further distributed between four shift groups and a control group. All fish commenced rearing at the control temperature (28.5 ± 0.4 ˚C) and were then raised to their assigned temperature treatment after 0 (G0), 10 (G10), 25 (G25) or 60 (G60) days post hatching (dph). An additional control group from each family remained at the population’s mean summer temperature (28.5 ˚C) for the duration of the experiment in order to measure the sex ratio at present-day temperatures. For the purpose of analysis this control group was identified as G90. At 90 dph the gender of all fish in switch groups and the control was determined. A small sample of juveniles was taken from each grow-out treatment for weight and length analysis.

Related Publications
  1. Rodgers, G.G., Donelson, J.M., and Munday, P.L. (2017) Thermosensitive period of sex determination in the coral-reef damselfish Acanthochromis polyacanthus and the implications of projected ocean warming. Coral Reefs, 36 (1). pp. 131-138.
Related Websites
(no information)
Related Data
(no information)
Related Services
(no information)
Technical metadata
(no information)
People
Creators
  1. Owned by: Ms Giverny Rodgers , giverny.rodgers@jcu.edu.au , Discipline of Marine Biology (6621), ARC Centre of Excellence for Coral Reef Studies (7351), School of Marine & Tropical Biology (6620)
  2. Associated with: Dr Jennifer Donelson , jennifer.donelson@jcu.edu.au , Discipline of Marine Biology (6621), ARC Centre of Excellence for Coral Reef Studies (7351)
  3. Associated with: Prof Philip Munday , philip.munday@jcu.edu.au , Discipline of Zoology & Tropical Ecology (6624), ARC Centre of Excellence for Coral Reef Studies (7351), Comparative Genomics Centre
Primary Contact
Ms Giverny Rodgers, giverny.rodgers@jcu.edu.au
Supervisors
  1. Prof Mark McCormick , mark.mccormick@jcu.edu.au
  2. Prof Philip Munday , philip.munday@jcu.edu.au
Collaborators
(no information)
Subject
Fields of Research
  1. 060205 - Marine and Estuarine Ecology (incl. Marine Ichthyology) (060205)
Socio-Economic Objective
  1. 960399 - Climate and Climate Change not elsewhere classified (960399)
Keywords
  1. temperature-dependent sex determination
  2. sex ratio
  3. environmental sex determination
  4. climate change
  5. thermal sensitivity
  6. ARC Centre of Excellence for Coral Reef Studies
Research Activity
(no information)
Research Themes
Tropical Ecosystems, Conservation and Climate Change
Rights
License
CC BY-NC: Attribution-Noncommercial 3.0 AU
License - Other
(no information)
Access Rights/Conditions
Open access. If the data is not feely accessible via the link provided, please contact the nominated data manager or researchdata@jcu.edu.au for assistance.
Type
open
Rights
(no information)
Data
Data Location
Online Locations
Attachments
  1. TSP_Full Dataset.xlsx (Data File, Public)
  2. TSP_Full Dataset.ods (Data File, Public)
Stored At
(no information)
Citation
Cite:
Rodgers, G.; Donelson, J.; Munday, P. (2016). Thermosensitive period of sex determination in the coral reef damselfish Acanthochromis polyacanthus and the implications of projected ocean warming. James Cook University. [Data Files] http://dx.doi.org/10.4225/28/57997DE4D306A
Digital Object Identifier (DOI):
10.4225/28/57997DE4D306A