Bryozoans are just one of the many strange and unique animals that call the St. Croix River home.
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All articles filed in freshwater mussels
The secret life of the St. Croix’s freshwater mussels
“The St. Croix River is a rare example of a complete and intact river ecosystem,” explains Marian Shaffer, an Aquatic Biologist with the National Park Service. “In fact, all of the freshwater mussel species that existed in the St. Croix Riverway before European settlement are still here today.”
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Paddle, Bike, Repeat: Four days on the Namekagon and St. Croix Rivers
We started our trip at the County Rd K landing (Namekagon River), near Trego, Wisconsin, and ended four days later at the Lower Tamarack landing (St. Croix River), 47-miles downriver. To avoid using a shuttle or bringing two cars, I brought my mountain bike along and rode back to our put-in at the end of each day to bring our truck and camping gear down to the next location.
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Mooneye, sturgeon and microplastics in trout
In the swiftly flowing waters of the St. Croix River, a federally endangered species of mussel called the spectaclecase shelters among boulders on patches of gravel and sand. It’s not easy to make babies when you’re spectaclecase. First, the male must release sperm into the river current, hopefully upstream of a lady mussel. If a…
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Tracing Lazy Circles in the Sand
Forty species of mussels live in the St. Croix, including five that are listed under the Federal Endangered Species Act: the Higgin’s eye, sheepnose, snuffbox, spectaclecase and winged mapleleaf.
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East Metro Water 