Spiny and Fishhook Waterfleas
This little predatory zooplankton is native to Europe and Asia. They can grow up to ¾ of an inch in length and eat native Daphnia, which is a food source for many smaller juvenile fish species. Young fish…
This little predatory zooplankton is native to Europe and Asia. They can grow up to ¾ of an inch in length and eat native Daphnia, which is a food source for many smaller juvenile fish species. Young fish…
Zebra mussels are small bivalve mollusks that are fingernail sized and native the Caspian Sea region of Asia. These mussels are filter feeders and one mussel can filter one liter of water per day. In the water they…
There currently is not much information known about these non native snails. What is known is they compete with native snails for the same resources and they often die off in large numbers in the summer. The snails…
Rusty crayfish are native to streams in the Ohio River Basin states of Ohio, Kentucky, Illinois, Indiana, and Tennessee. They were introduced to Wisconsin by anglers who used them as fishing bait. These crayfish impact native crayfish populations,…
Curly Leaf Pondweed is one of 80 pondweed species found within the world. It is native to Eurasia, Africa and Australia. It was accidently introduced with the common carp in the early 1800’s and made its way to…
Eurasian water milfoil is a submersed aquatic plant that is native to Europe, Asia, and northern Africa. It was first documented in the United States in 1942 and arrived in Wisconsin in the early 1960’s. It was likely…