Team discovers invasive-native crayfish hybrids in Missouri

In a study of crayfish in the Current River in southeastern Missouri, researchers discovered—almost by chance—that the virile crayfish, Faxonius virilis, was interbreeding with a native crayfish, potentially altering the native’s genetics, life history and ecology. Reported in the journal Aquatic Invasions, the study highlights the difficulty of detecting some of the consequences of biological invasions, the researchers say.

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