The Broads Authority is running an online survey to find out if its campaign to curb the spread of new aquatic aliens is reaching water users.
It takes just five minutes to complete and will help in future public campaigns.
The latest arrival to the Broads is the killer shrimp, Dikerogammarus villosus, which was discovered in Barton Broad in March this year and has since spread up the River Ant as far as Wayford Bridge and downstream into the Bure.
All users of the Broads are being asked to check their equipment and clothes for live organisms, wash them off and dry them out thoroughly to avoid spreading the shrimp to other waterways.
Will Burchnall was appointed to the new post of Wetlands Biosecurity Officer by the Broads Authority, co-funded by the Environment Agency, Natural England and Defra, to promote awareness of damaging invasive species.
He said: “Since the arrival of the killer shrimp I have worked closely with boating organisations, sailing and rowing clubs and anglers to raise awareness of the Check, Clean, Dry campaign. We would now like to know if the message has got through or if more work needs to be done.
“We are most concerned to protect water bodies isolated from the main Broads system, such as the Trinity and Whitlingham Broads, from invasion by these aliens as they could endanger the very delicate eco-system. If people could spare five minutes to fill in the survey it will help us to know how effective our campaign has been and where we go from here.”