The Baltic Sea: An ecosystem with multiple stressors

Area of Science:

• Environmental Science
• Ecotoxicology
• Marine Biology

Background:

• The Baltic Sea ecosystem faces complex challenges from multiple stressors.
• Understanding contaminant transfer and food web dynamics is crucial for ecosystem health.

Purpose of the Study:

• To outline future research directions for assessing environmental stressors in the Baltic Sea.
• To extend existing frameworks for contaminant transfer and population-level effects.
• To evaluate risks posed by hazardous substances to Baltic Sea wildlife.

Main Methods:

• Review and synthesis of current research gaps and future needs.
• Framework development for energy and contaminant transfer at the population level.
• Risk assessment methodologies for hazardous substances.

Main Results:

• Identification of key areas for future research, including waterbirds as sentinels.
• Need for extended frameworks to assess long-term effects on top predators.
• Potential application of risk evaluation frameworks to Baltic Sea wildlife.

Conclusions:

• Future work must integrate multiple stressors and climate change impacts on the Baltic Sea food web.
• Further development of population-level transfer frameworks is essential.
• Comprehensive risk assessments are needed for various Baltic Sea species and emerging stressors.