In an ongoing partnership with Connecticut Department of Energy and Environmental Protection (CT DEEP) and The United States Geological Survey (USGS), Water Treatment Plant operators from Groton Utilities constructed an American eel collection system. The system is deployed each fall to collect live eels during their migration period. The life cycle of the American eel involves a seasonal migration from fresh water to the ocean and eventually to the Sargasso Sea where they spawn. Without the collection system there is risk of eels swimming into the intake piping of the Water Treatment Plant; or facing the challenge of swimming downstream, at a time in the season when natural flows are low and sometimes without the necessary overflow from the Poquonnock Reservoir that feeds the head of the Poquonnock River. With the collection system live eels are measured and counted by CT DEEP before being released downstream, into the Poquonnock River estuary, by hand.
Eel Abatement System Test Presentation: