Understanding how trace element contamination affects sedimentary DNA signals for biodiversity reconstruction in lakes

This project aims to improve how scientists use sedimentary DNA (sedDNA) to study past biodiversity in lakes affected by metal contamination. Sedimentary DNA preserved in lake sediments offers a powerful way to reconstruct long-term ecological changes, but high concentrations of trace elements can interfere with DNA preservation and detection, making results difficult to interpret. Through a critical review of existing research and the analysis of sedimentary DNA data from metal-contaminated lakes in Quebec, this project will clarify how metal contamination influences sedimentary DNA signals and their ecological interpretation. The collaboration between the home institution and the host laboratory will strengthen expertise in sedimentary DNA applications, support the doctoral research of the intern, and contribute to the development of more reliable methods for studying and monitoring freshwater ecosystems affected by pollution.

Faculty Supervisor:

Carsten Meyer-Jacob

Student:

Partner:

Umeå University

Discipline:

Earth science

Sector:

Education

University:

Université du Québec en Abitibi-Témiscamingue

Program: