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Aquatic Invasive Species Monitoring



Aquatic invasive species (AIS) monitoring involves searching the lake for aquatic invasive species like Eurasian watermilfoil, zebra mussels, rusty crayfish, and others. The frequency that volunteers perform AIS monitoring varies, but most volunteers do this a few times per year. Most volunteers conduct AIS monitoring in high-risk sites around their lakes (like boat landings) to detect early populations of AIS. Early detection of AIS is crucial for effective, inexpensive management, so these volunteers are incredibly valuable. 

Aquatic Invasive Species Monitoring Videos

Aquatic Invasive Species Monitoring Forms


Aquatic Invasives Surveillance (3200-133) 
Use this form for general AIS monitoring on your lake (formerly 3200-124).

Aquatic Invasives Surveillance Fillable PDF Version (3200-133) 
Use this fillable PDF to enter AIS monitoring data electronically.

Aquatic Invasives Surveillance for multiple locations (3200-130) 
Use this form for general AIS monitoring in more than one location on the same day.

Aquatic Invasive Plant Incident Report (3200-125) 
Use this form to record any new AIS plants in a waterbody (only use if the AIS has not previously been found on the waterbody).

Aquatic Invasive Animal Incident Report (3200-126) 
Use this form to record any new species of AIS in a waterbody (only use if the AIS has not previously been found on the waterbody).

To get a list of AIS by lake: (exit UWEX Lakes)

To get a list of lakes by AIS: (exit UWEX Lakes)

Crayfish (quantitative) Monitoring Report (3200-129) 
Use this form if you are trapping (use one form for each area of the lake trapped) or netting crayfish. 

Plant Bed Density Report (3200-132) 
Use this form for recording density readings of invasive plant beds, once the invasive has been found and confirmed. Use one form per plant bed.

Purple Loosestrife/Wetland Invasive Plant Monitoring
Use this form to track the abundance of wetland invasive plants.

Waterflea Tow Monitoring Form (3200-128)
Use this form to track the presence/absence of spiny or fishhook water fleas using a plankton net.

Zebra Mussel Monitoring Forms

Quantitative Monitoring Report (3200-127)
Use this form to track the abundance of adult zebra or quagga mussels in lakes where larvae or adults have previously been detected (requires use of sampler plates - use one form for each plate).

For a list of ALL monitoring forms, click here (exit UWEX Lakes) 

Aquatic Invasive Species Monitoring Resources


Aquatic Invasive Species: A Guide for Proactive and Reactive Management (Vilas County)


This delightful, large-format field guide to aquatic plants in North America is accessible and inviting to general readers, yet detailed enough for use by botanists and natural resource managers.

Aquatic Plants of the Upper Midwest (Second edition released in 2014)
This full-color, spiral-bound, photographic guide walks the reader through how to identify all 152 submergent and floating species of aquatic plants in the Upper Midwest, including the difficult macro-algae (CharaNitella, etc.). The second edition features  about 30 additional species, a large section on possible future aquatic invasive plant species, several new botanical keys, a new UV-cured coating on all pages to resist water damage, and more.



AIS fact sheets

Asian clam (Corbicula fluminea)



  What else can volunteers monitor?

For more information contact

Paul Skawinski, Citizen Lake Monitoring Network Educator

(715) 346-4853

Or go to

The Wisconsin Department of Natural Resources site

at (exit UWEX Lakes)​​​​​​

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