Linking forest compartments to the long-term decline rates of 137Cs in stream fish: A contaminated headwater catchment in Fukushima.

Key Points

• This research aims to connect the health of forest compartments to fish contamination rates over time.
• Analysis of contamination levels in stream fish
• Assessment of forest compartment health
• Evaluation of long-term decline rates of fish contamination
• Contamination levels of 137Cs in stream fish correlated with forest compartment quality
• Long-term predictions indicate persistent contamination risks
• Findings raise concerns for the recovery of masu salmon fisheries