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Research

Genomics for freshwater communities

We use approaches from genomics and evolutionary bioinformatics to study freshwater communities and ecosystems — primarily organisms living in streams, rivers, and lakes.

Focus

The group works on aquatic insects, fungi, fish, plankton, and microbes, using theory, data, and models drawn from evolutionary biology.

We are active in the Center for Genomics in Biodiversity Research, where our work combines environmental genomics with evolutionary bioinformatics to understand how freshwater biodiversity is assembled and maintained.

The group is located at the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) and the Institute of Biology, Freie Universität Berlin.

Glowing translucent dried plant husk lit from behind in warm orange tones against a softly blurred amber background
Aquatic and microbial material studied with molecular approaches.

Methods

Our research includes the following core techniques, applied in the field, in the laboratory, and at the Center for Genomics in Biodiversity Research.

  • Environmental genomics
  • DNA metabarcoding
  • Phylogenetics
  • Population genetics
  • Marker development
  • RNAseq

Our research applies genomics and evolutionary bioinformatics to the organisms that populate streams, rivers, and lakes. We ask how freshwater communities are assembled, how biodiversity is maintained over time, and how environmental change shapes the genetic and functional composition of aquatic systems. By combining sequencing approaches with computational analysis and ecological theory, we can follow patterns of variation that are invisible to conventional field surveys and use them to better understand the processes structuring freshwater ecosystems.

The group works across a broad range of freshwater organisms, including aquatic insects, fungi, fish, plankton, and microbes. Rather than treating these groups separately, we use them as complementary perspectives on the same ecological questions: how organisms respond to temperature variation, chemical conditions, and habitat structure, and how those responses ripple through entire communities. This comparative focus allows insights from one taxonomic group to inform our understanding of others and of the ecosystem as a whole.

Methodologically, our work blends theory, data, and models drawn from evolutionary biology. Molecular markers and whole-genome information are analyzed alongside ecological sampling, and computational bioinformatics tools help us detect signals of selection, adaptation, and community turnover. We are active within the Center for Genomics in Biodiversity Research, where environmental genomics meets evolutionary bioinformatics, providing a collaborative setting for developing new analytical frameworks and sharing expertise across institute boundaries.

Our applied interests include the effects of climate-induced stress on freshwater systems, the drivers of compositional change and rarity in biological communities, and the conservation of threatened species and their habitats. Questions of forest dieback, parasite transmission, and the population biology of commercially and ecologically important fishes such as eels also feature in our portfolio. Through publications, teaching, and engagement with journals and scientific media, we aim to make our findings accessible to practitioners and policymakers working on freshwater biodiversity.

Funding

Our work is supported by diverse international funding bodies, including national and European research councils, exchange programmes, and genomic community programmes.

Funding and partner programmes supporting the group's research.
FunderProgramme
Belmont ForumCollaborative research actions
European UnionFramework Programme for Research and Innovation
German Academic Exchange ServiceExchange and cooperation programmes
German Federal Ministry of Education and ResearchFederal research funding
German Science Foundation (DFG)Collaborative research and grants
JGICommunity Science Program
Leibniz AssociationLeibniz funding lines
International IGB Fellowship ProgrammeFellowships at Leibniz-IGB

Further partners include SNF, the Ministry of Higher Education and Scientific Research (Rep. Sudan), and DAAD.

Related pages

Read the group's outputs and meet the people behind the work.