Supporting one of Britain’s most elusive species
European eels were once widespread, but now they are one of the most endangered species in the UK.
At Newquay Zoo, we’re working with local groups to monitor European eels in the Gannel Estuary and the river catchment – including the stream that runs through the zoo itself – to evaluate their populations and to see what obstacles to migration they face.
European eels live in freshwater, but spawn in the sea, meaning that it is vital that eels can migrate both up and down streams. However, man-made structures like dams and diversions create serious barriers for eels, especially young, small eels (known as elvers), which only measure around 8cm long.
These barriers, along with habitat loss and degradation, have contributed to a shocking 95% population decline in the last 40 years.
How much do you know about eels?
Not much? Then you’re not alone! Eels are so mysterious, that no-one know exactly where they breed, what process takes place to decide their sex, or even what signals they use to tell them it’s time to migrate back to their spawning grounds somewhere in the Sargasso Sea.
Curious to find out more? Head to our website to learn more about the lifecycle of European eels, and the enormous lengths they go to throughout their lives.
However, by working with Newquay Marine Group, Cormac (Cornwall’s civil engineering and highways contractor) and University Centre Newquay, Newquay Zoo is gathering much needed data on the local eel population and using this information to help them move around safely.
Newquay Marine Group has now successfully installed a mussel rope eel pass, which is basically a ladder for young eels, helping them to move upstream more easily.
In addition, Newquay Zoo is working with both Newquay Marine Group and University Centre Newquay on plans to monitor European eels through various methods, including eel catches and video recording.
Helping halt species decline
This is just one of several projects – including ones here in the UK and abroad – run by Wild Planet Trust, Newquay Zoo’s parent organisation. Wild Planet Trust is a conservation charity dedicated to helping halt species decline, by protecting habitats, participating in breeding programmes and engaging with local communities.
To see the full list of programmes, head to the Wild Planet Trust website:
