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Risky business: how elevated CO₂ and energetic resources affect anti-predator behaviour in a reef fish

This data set contains trial/experimental measurements and water chemistry data. Units are:

  • Length - mm
  • Weight - g
  • Parent treatment and CO₂ treatment - pCO₂

Abstract [Related Publication]: The appropriate behavioural response to predation risk is critical to survival; however, behavioural responses can be subjected to trade-offs. For example, individuals may engage in riskier foraging behaviour to secure sufficient energy if resources are limited. Additionally, elevated CO₂ can influence foraging and antipredator behaviour of marine organisms. Yet, how the availability of energetic resources may influence antipredator behaviour in an elevated CO₂ environment is unknown. We tested the effects of food ration (low and high: 4% and 8%of body weight per day, respectively) on antipredator behaviour at ambient (489 μatm) and elevated (1022 μatm) CO₂ in juvenile Amphiprion percula at 50 d post-hatching. Juveniles were from parents held at either ambient or elevated CO₂, as parental exposure can influence phenotypic response in offspring. Antipredator behaviour was severely impaired by elevated CO₂, with juveniles reared at elevated CO₂ exhibiting no change in feeding rate in the presence of the predator cue compared with a >67% reduction in feeding rate in ambient CO₂ fish. By contrast, food ration had a minor effect on the change in feeding rate in response to the predator cue, with only a 2.3% difference between high and low food ration fish. The effect of elevated CO₂ on antipredator behaviour of juveniles was not influenced by food ration. Parental exposure to elevated CO₂ influenced the baseline feeding rate and exhibited a small carry-over effect in elevatedCO₂ juveniles. These results suggest that reef fish could exhibit riskier behaviour at elevated CO₂ levels, regardless of the energetic resources available.

The full methodology is available in the publication shown in the Related Publications link below.

 
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    Data Record Details
    Data record related to this publication Risky business: how elevated CO₂ and energetic resources affect anti-predator behaviour in a reef fish
    Data Publication title Risky business: how elevated CO₂ and energetic resources affect anti-predator behaviour in a reef fish
  • Description

    This data set contains trial/experimental measurements and water chemistry data. Units are:

    • Length - mm
    • Weight - g
    • Parent treatment and CO₂ treatment - pCO₂

    Abstract [Related Publication]: The appropriate behavioural response to predation risk is critical to survival; however, behavioural responses can be subjected to trade-offs. For example, individuals may engage in riskier foraging behaviour to secure sufficient energy if resources are limited. Additionally, elevated CO₂ can influence foraging and antipredator behaviour of marine organisms. Yet, how the availability of energetic resources may influence antipredator behaviour in an elevated CO₂ environment is unknown. We tested the effects of food ration (low and high: 4% and 8%of body weight per day, respectively) on antipredator behaviour at ambient (489 μatm) and elevated (1022 μatm) CO₂ in juvenile Amphiprion percula at 50 d post-hatching. Juveniles were from parents held at either ambient or elevated CO₂, as parental exposure can influence phenotypic response in offspring. Antipredator behaviour was severely impaired by elevated CO₂, with juveniles reared at elevated CO₂ exhibiting no change in feeding rate in the presence of the predator cue compared with a >67% reduction in feeding rate in ambient CO₂ fish. By contrast, food ration had a minor effect on the change in feeding rate in response to the predator cue, with only a 2.3% difference between high and low food ration fish. The effect of elevated CO₂ on antipredator behaviour of juveniles was not influenced by food ration. Parental exposure to elevated CO₂ influenced the baseline feeding rate and exhibited a small carry-over effect in elevatedCO₂ juveniles. These results suggest that reef fish could exhibit riskier behaviour at elevated CO₂ levels, regardless of the energetic resources available.

    The full methodology is available in the publication shown in the Related Publications link below.

     

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  • Other Descriptors
    • Descriptor

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

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      Descriptor type Note
    • Data type dataset
  • Keywords
    • ocean acidification
    • energy budget
    • predation
    • trade-offs
    • parental effects
    • climate change
    • ARC Centre of Excellence for Coral Reef Studies
  • Funding source
  • Research grant(s)/Scheme name(s)
    • Research themes
    Tropical Ecosystems, Conservation and Climate Change
    FoR Codes (*)
    SEO Codes
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    Temporal (time) coverage
  • Start Date 2015/10/01
  • End Date 2016/10/01
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  • Related publications
      Name McMahon SJ, Donelson JM, Munday PL (2018) Food ration does not influence the effect of elevated CO2 on antipredator behaviour of a reef fish. Mar Ecol Prog Ser 586:155-165.
    • URL https://doi.org/10.3354/meps12397
    • Notes All articles in Marine Ecology Progress Series will become freely accessible to all users 5 years after publication
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- Citation
    Citation McMahon, Shannon (2017): Risky business: how elevated CO₂ and energetic resources affect anti-predator behaviour in a reef fish. James Cook University. https://doi.org/10.4225/28/58f41e19051c9