Temperature Influences Selective Mortality in Coral Reef Fish
Author Information
Author(s): Tauna L. Rankin, S. Sponaugle
Primary Institution: Rosenstiel School of Marine and Atmospheric Science, University of Miami
Hypothesis
How does water temperature affect growth-related early life history traits and selective mortality in bicolor damselfish?
Conclusion
Temperature significantly influences growth-related traits and the direction of selective mortality in bicolor damselfish during their early life stages.
Supporting Evidence
- Mean near-reef water temperature explained a significant portion of variation in early life history traits.
- Surviving juveniles were consistently larger at settlement but grew more slowly post-settlement.
- Temperature influenced the direction and intensity of selective mortality across seasons.
Takeaway
This study found that warmer water can change how fish grow and survive, showing that temperature affects which fish live and which die.
Methodology
The study analyzed 16 cohorts of bicolor damselfish over 6 years, examining the effects of water temperature on growth and mortality.
Limitations
The study may not account for all environmental factors influencing survival, such as predator abundance.
Participant Demographics
Bicolor damselfish (Stegastes partitus) from the Florida Keys.
Statistical Information
P-Value
p<0.01
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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