Environment Agency:
North American signal crayfish and native crayfish
Environment Agency:
Floating Pennywort
Environment Agency:
Floating Pennywort
Environment Agency:
Japanese Knotweed
Environment Agency:
Female Chinese Mitten crab
Environment Agency:
Chinese Mitten crab
Environment Agency:
Topmouth gudgeon eradication programme - Surrey
Environment Agency:
Topmouth gudgeon
Environment Agency:
'Killer shrimp' Dikerogammarus villosus
Environment Agency:
Mink
Environment Agency:
Giant hogweed
Environment Agency:
Himalayan balsam
Environment Agency:
Top Mouth Gudgeon
Environment Agency:
Water primrose (in France)