New Zealand Mud Snail (Potamopyrgus antipodarum)
Where did the mud snail come from?
Mud snail size comparison with a dimeCredit: US Geological Survey
Why is the mud snail a problem?
- The mud snail is native to New Zealand.
- It was first found in Idaho and Montana in 1987.
- New Zealand mud snails have been spread to Wisconsin, Minnesota, Oregon and California waters.
What does the mud snail look like?
- The New Zealand mud snail has no predators outside of New Zealand.
- The mud snail reproduces at an alarmingly high rate and colonizes quickly.
- The mud snail competes for food with other native bottom dwelling animals and often crowds out the area, thus resulting in less food for native species.
How do we control the mud snail?
- Mature New Zealand mud snails near 5 mm in length.
- Their shells range from light brown to dark brown.
- Because the introduction of the New Zealand Mud Snail has been highly successful, preventing further spread is very important.
- Education through outreach is the best way now to stop the New Zealand mud snail from spreading.
New zealand mud snail shellsCredit: Dmitry P. Filippenko & Mikhail O. Son