Eel monitoring at Lea Bridge-2018


Reference: OPP0006059

Activities: Practical, Recording and monitoring

Starts: 25 June 2018


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Did you know that the European eel (Anguilla anguilla) is classified as ‘Critically Endangered’ by the IUCN Red List of Threatened Species? Also research by ZSL (Zoological Society London) has shown that the ‘recruitment’ (or return) of elvers has declined by up to 95% over the last 25-30 years in some tributaries of the Thames.

But it is not all doom and gloom – We're looking for volunteers to help monitor eels at Lea Bridge for ZSL. This information will start to create a picture of elver recruitment trends, which will be invaluable to the ongoing research.

You will be helping us to:
- Check eel Traps
- Count, measure and release any eels present
- Upload the data onto the ZSL website

Monitoring runs from April to September, so you can enjoy the summer on the river while collecting vital data to understand eels.


Whether you are studying and this field work will give you some valuable experience, or you fancy getting some fresh air and getting involved in some citizen science, this is a great opportunity to take part in. You will also be invited to ZSL London zoo at the end of the eel monitoring season to go over the results.

Skills required

You don’t need to be an eel expert to get involved, but you will need to commit to covering a particular ‘shift’ (on a Wednesday or Friday) and attend a training evening on Monday 25th June at 5pm. More information will be given nearer the time, including the venue, what footwear you’ll need to wear when on site and what health & safety we will cover before starting.

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