Impact of Climate Change on Arctic Charr Growth
Author Information
Author(s): Kristensen David M, Jørgensen Thomas R, Larsen Rasmus K, Forchhammer Mads C, Christoffersen Kirsten S
Primary Institution: University of Copenhagen
Hypothesis
Warming in the Arctic may affect the annual growth conditions of the cold adapted Arctic charr.
Conclusion
Climatic changes over the last two decades have significantly affected the growth patterns of Arctic charr populations.
Supporting Evidence
- Significant changes in growth patterns were observed between cohorts from 1990 and 2004.
- Temperature has a notable impact on the growth rates of Arctic charr populations.
- Different populations responded differently to climate change, with one showing reduced growth and another increased growth.
Takeaway
As the climate gets warmer, Arctic charr fish grow differently, with some growing slower and others faster depending on their environment.
Methodology
Fish were sampled from six locations, and their growth rates were analyzed in relation to climate data using multiple linear regression.
Limitations
The study is based on two localities with a limited sample size.
Participant Demographics
The study focused on two landlocked populations of Arctic charr from Røde Elv and Kangarssuk.
Statistical Information
P-Value
0.008
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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