What we found
Boat ramps facilitate the dispersal of the highly invasive zebra mussel (Dreissena polymorpha). To contain the dispersion of this invasive species we suggest the implementation of strict control measures and target monitoring around boat ramps.
Why it is important
Invasive bivalves can cause widespread ecological damage, but eradication has proved difficult. The zebra mussel is one of the most damaging invasive bivalves – it reproduces fast, disperses widely, and damages the economy. In Great Britain, £5 million are lost each year due to pipe fouling and damage to water infrastructures.
How we did it
In this study, we examined the distribution of the zebra mussel in Great Britain using a model to generate maps that can predict future dispersion. The model shows that distance to boat ramps is the best way to predict the mussel’s distribution - mussels are more likely to be present within 3 km upstream of boat ramps.
What it means
“Using these maps, we detected many areas in most catchments currently without zebra mussel that have a high risk of becoming invaded. For instance, we know this mussel species is already established in some areas in the Thames River but not in all areas, and these free zones should be targeted for monitoring and prevention.” says Dr Marta Rodriguez-Rey.
FishBites is a science communication series by the FishBEE research group.
The FishBEE team integrates the Centre for Sustainable Aquatic Research (CSAR), based at Swansea University, UK.
This post was written by Dr Sara Barrento and is based on the research paper authored by Dr Marta Rodriguez-Rey and co-authors, entitled Boat ramps facilitate the dispersal of the highly invasive zebra mussel (Dreissena polymorpha)
Rodríguez-Rey, M., Consuegra, S., Börger, L. et al. Boat ramps facilitate the dispersal of the highly invasive zebra mussel (Dreissena polymorpha). Biol Invasions (2021). https://doi.org/10.1007/s10530-020-02453-9