Match-Mismatch Dynamics and Fish Recruitment
Author Information
Author(s): Kristiansen Trond, Drinkwater Kenneth F., Lough R. Gregory, Sundby Svein
Primary Institution: Institute of Marine Research and Bjerknes Centre for Climate Research, Bergen, Norway
Hypothesis
The study investigates how match-mismatch dynamics affect the survival of larval cod populations in relation to environmental factors.
Conclusion
The duration of overlap between larval fish and prey abundance is crucial for enhancing survival, especially during warm years.
Supporting Evidence
- Survival rates of larval cod increased significantly during warm years.
- The importance of match-mismatch dynamics increased with latitude.
- Cumulative survival was more critical than the timing of peak prey abundance.
Takeaway
This study shows that for baby fish to survive, they need to find food at the right time, and warmer years help them find food longer.
Methodology
The study used empirical observations, a mechanistic individual-based model, and ocean temperature data from 1960 to 2002 to estimate larval cod survival.
Limitations
The model did not include all factors affecting larval fish growth and survival, such as shifts in prey species composition.
Statistical Information
P-Value
p=0.0016
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website