Fall is in the air, and with that, we say farewell to Ava Pfeffer, our 2017 La Crosse Area Aquatic Invasive Species (AIS) Intern. Ava teamed up with Scott Caven (our La Crosse Area AIS Coordinator) this summer to tackle AIS issues on the Mississippi River and major tributaries in La Crosse,... Read More

With field season ramping up by the day, River Alliance of Wisconsin welcomes Ava Pfeffer as our 2017 La Crosse Area Aquatic Invasive Species (AIS) Intern. Ava graduated from the University of Wisconsin-La Crosse with a Biology degree this past spring and will team up with Scott Caven (our... Read More

In 2015, water hyacinth (Eichhornia crassipes) and water lettuce (Pistia stratiotes) – two of the most problematic aquatic invasive species (AIS) in the world – were discovered in Lake Onalaska (Pool 7 of the Mississippi River) near Onalaska and in the Vietnam Veterans Pond on the southside... Read More