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Ecotoxicological Methodologies to Evaluate Biomarkers at Different Scales in Neotropical Anurans
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The Baltic Sea: An ecosystem with multiple stressors.

R Dietz1, C Sonne1, B M Jenssen2

  • 1Department of Bioscience, Arctic Research Centre (ARC), Aarhus University, Faculty of Science and Technology, Frederiksborgvej 399, PO Box 358, DK-4000 Roskilde, Denmark.

Environment International
|December 16, 2020
PubMed
Summary

Future research should investigate waterbirds as sentinels for multiple stressors and hazardous substance dynamics in the Baltic Sea food web, considering climate change impacts. This includes extending frameworks for contaminant transfer and assessing long-term effects on top predators.

Keywords:
BalticBiomarkersHealth effectsMercuryPOPs

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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.