Limited Resilience of Subtropical Reefs
Author Information
Author(s): Hoey Andrew S., Pratchett Morgan S., Cvitanovic Christopher
Primary Institution: Red Sea Research Center, King Abdullah University of Science and Technology
Hypothesis
The study aims to assess the potential resilience of benthic reef assemblages at Lord Howe Island.
Conclusion
The high macroalgal cover, low recruitment of juvenile corals, and low biomass of herbivorous fishes may limit the capacity of these reefs to recover from disturbances.
Supporting Evidence
- Coral cover at Lord Howe Island was higher than most other subtropical reefs.
- Juvenile coral densities were significantly lower than those reported for tropical reefs.
- High macroalgal cover was negatively related to the density of juvenile corals.
Takeaway
Coral reefs in Lord Howe Island have a lot of seaweed and not enough baby corals, which makes it hard for them to bounce back after bad events.
Methodology
The study used visual censuses of fish and benthic communities, along with point-intercept transects to assess benthic composition and juvenile coral densities.
Limitations
The study was limited by the inability to access certain areas due to unfavorable weather conditions.
Statistical Information
P-Value
p<0.001
Statistical Significance
p<0.001
Digital Object Identifier (DOI)
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