Didymo is an invasive alga that can lodge in porous-soled waders.
Porous-soled waders include shoes, boots, or waders with porous soles made of felt or any matted or woven fibrous material.
To keep didymo from invading trout waters, porous-soled waders are prohibited on the following waters:
Trout Parks
- Maramec Spring Park
- Bennett Spring State Park
- Montauk State Park
- Roaring River State Park
Lakes and Streams
- Barren Fork Creek in Shannon County
- Blue Springs Creek in Crawford County
- Capps Creek in Barry and Newton counties
- Crane Creek in Stone and Lawrence counties
- Current River in Dent, Texas, and Shannon counties
- Dry Fork Creek in Crawford and Phelps counties
- Eleven Point River in Oregon County
- Hickory Creek in Newton County
- Lake Taneycomo and its tributaries in Taney County
- Little Piney Creek in Phelps County
- Meramec River in Crawford and Phelps counties
- Mill Creek in Phelps County
- Niangua River in Dallas and Laclede counties
- North Fork of White River in Ozark County
- Roaring River in Barry County
- Roubidoux Creek in Pulaski County
- Spring Creek in Phelps County
- Stone Mill Spring Branch in Pulaski County