Eels: ecology, breeding and health
About this expertise
In short- Ecology & migration
- Sustainable management
- Breeding & aquaculture
- Health & disease control
- Innovative research methods
The European eel is critically endangered. Together with fishermen and water managers, among others, WUR studies ecology, breeding and health using innovative research methods. Our advice is applied in national and international management plans.
The European eel (Anguilla anguilla) is an iconic fish species with an unusual life cycle. After spawning in the Sargasso Sea, the young glass eels migrate thousands of kilometres to Europe to grow up in rivers, lakes and coastal areas. Since the 1980s, the eel population has declined by more than 90 percent. This has major implications for biodiversity, the fishing industry and cultural history.
Within WUR, ecologists, animal scientists and aquaculture specialists are joining forces to understand and reverse this decline. In doing so, we use both traditional monitoring and modern technology. Together with fishermen, water managers, NGOs, policy makers and international partners, we pool knowledge and methods of research to contribute to the recovery and sustainable use of this species.
In this way, we connect disciplines and stakeholders, and provide integrated solutions for the protection of European eels.
More information
We are involved in long-term monitoring of eel populations and follow migration routes with fieldwork, telemetry (remote measurement) and tagging. Using advanced models, we analyse population dynamics and the effects of climate change, water management, pollution and human interventions.
Our researchers advise on effective recovery measures, such as fish passages and locks, the reintroduction of glass eel, catch limits and habitat protection. Our advice is applied in national and international management plans.
In laboratories and pilot systems, we work on artificial reproduction and rearing of eels in controlled conditions. By doing so, we break the natural cycle and contribute to recovery programmes and the development of sustainable aquaculture.
Through field studies and laboratory research, we study the impact of parasites such as the parasitic nematode worm Anguillicola crassus and other diseases and stressors. The results are essential for recovery measures as well as successful breeding.
Besides classic ecological methods, we also use new technologies. For example, eDNA analysis to detect eels at different life stages, sensors and telemetry to track migration, and artificial intelligence (AI) to analyse large data sets faster and more accurately. This enables us to strengthen our insights and give more informed advice.
Get inspired
Related products and services (3)
Get in touch with our expert
Are you involved in eel management, fishing, breeding, aquaculture or nature restoration? Contact our expert for collaboration, advice or more information.
dr.ir. AP (Arjan) Palstra
Business Developer Eel Research