Last week, I found myself under the A12 in Redbridge, wading through a muddy Thames tributary, in search of European eels. With me were two conservationists from ZSL – the organisation I lead – checking eel traps along eel migratory routes, as cars rumbled over the bridge above us.
I was at one of four sites where every April to September we monitor this Critically Endangered species, as juveniles (called elver eels) migrate along the River Thames to find spaces to grow and thrive.
