Research Data

Algae associated with coral degradation affects risk assessment in coral reef fishes

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General
Title
Algae associated with coral degradation affects risk assessment in coral reef fishes
Type
Dataset
Date Record Created
2017-09-12
Date Record Modified
2018-01-09
Language
English
Coverage
Date Coverage
2016-10-26 to 2016-12-10
Time Period
(no information)
Geospatial Location
  • Lizard Island, Queensland, Australia
Description
Descriptions
  1. Type: full

    Habitat degradation alters the chemical landscape through which information about community dynamics is transmitted. Olfactory information is crucial for risk assessment in aquatic organisms as predators release odours when they capture prey that lead to an alarm response in conspecific prey. Recent studies show some coral reef fishes are not unable to use alarm odours when surrounded by dead-degraded coral. Our study examines the spatial and temporal dynamics of this alarm odour-nullifying effect, and which substratum types may be responsible. Field experiments showed that settlement-stage damselfish were not able to detect alarm odours within 2 m downcurrent of degraded coral, and that the antipredator response was re-established 20 - 40 min after transferral to live coral. Laboratory experiments indicate that the chemicals from common components of the degraded habitats, the cyanobacteria, Okeania sp., and diatom, Pseudo-nitzschia sp., prevented an alarm odour response. The same nullifying effect was found for the common red algae, Galaxauria robusta, suggesting that the problem is of a broader nature than previously realised. Those fish species best able to compensate for a lack of olfactory risk information at key times will be those potentially most resilient to the effects of coral degradation that operate through this mechanism.

     

  2. Type: note

    This dataset is available as a spreadsheet in MS Excel (.xlsx) and Open Document formats (.ods)

Related Publications
  1. McCormick, Mark I., Barry, Randall P., and Allan, Bridie J. M. (2017) Algae associated with coral degradation affects risk assessment in coral reef fishes. Scientific Reports, 7.
Related Websites
(no information)
Related Data
(no information)
Related Services
(no information)
Technical metadata
(no information)
People
Creators
  1. Managed by: Prof Mark McCormick , mark.mccormick@jcu.edu.au , ARC Centre of Excellence for Coral Reef Studies, Marine Biology & Aquaculture
Primary Contact
Prof Mark McCormick, mark.mccormick@jcu.edu.au
Supervisors
(no information)
Collaborators
(no information)
Subject
Fields of Research
  1. 060205 - Marine and Estuarine Ecology (incl. Marine Ichthyology) (060205)
Socio-Economic Objective
  1. 970106 - Expanding Knowledge in the Biological Sciences (970106)
Keywords
  1. chemical alarm odours
  2. climate change
  3. Coral reef fish
  4. predator-prey
  5. risk assessment
  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-ND: Attribution-Noncommercial-No Derivatives 3.0 AU
License - Other
(no information)
Access Rights/Conditions
Open access. If the data is not freely 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. Experimental_data.xlsx (Data File, Public)
  2. Experimental_data.ods (Data File, Public)
Stored At
(no information)
Citation
Cite:
McCormick, M. (2017). Algae associated with coral degradation affects risk assessment in coral reef fishes. James Cook University. [Data Files] http://dx.doi.org/10.4225/28/59b89728339a9
Digital Object Identifier (DOI):
10.4225/28/59b89728339a9