The Aquatic Plant Management Group (formerly the Centre for Aquatic Plant Management) is based at CEH’s Wallingford site. The group focuses on understanding the mechanisms that enable the spread of non-native aquatic plants, and on economic and environmental impacts. It provides general information on the ecology and control of aquatic weeds and riparian plants – to regulatory authorities, flood defence organisations and nature conservation organisations – so as to prevent the establishment of invasive non-native plant species.

Aquatic plants are found in lakes, rivers and ponds across the UK, and play a vital role in all aquatic ecosystems. They produce oxygen, absorbing nutrients and helping to improve water quality, and stabilise lake shores and river banks, thereby protecting them from erosion. Aquatic plants provide food and important reproductive and cover habitats for fish, invertebrates, and wildlife. They also play an important role in supporting recreational activities such as fishing.


The group collaborates with the NNSS (GB non-native species secretariat) and with international organisations such as CABI and EPPO (European and Mediterranean Plant Protection Organisation) on the biological control and risk assessment of aquatic plants.

The group also participates in the EUPHRESCO project (European Phytosanitary Research Coordination) to develop methods for eradicating and containing invasive alien (non-native) aquatic and riparian weed species in Europe.

Aquatic plant datasheets

A number of datasheets on common aquatic and riparian weeds and their control will soon be available here in pdf. Please note that the use of herbicides in Europe is governed by EU Plant Protection Products Directive EU/91/414.

Selected publications


Additional links



Dr Jonathan Newman

Head of Aquatic Plant Management
Centre for Ecology & Hydrology
Maclean Building
Benson Lane
Crowmarsh Gifford
Oxfordshire OX10 8BB

T: +44 (0)1491 838800

F: +44 (0)1491 692424

Dr Manuel A Dueñas

Research Associate