Researcher George Merovich holds a captured specimen of the nonnative rusty crayfish near the Juniata River in central Pennsylvania. Photo by Stephanie Coster. Crawdad, crawfish, crayfish. No matter ...
These crayfish are larger, more aggressive, and reproduce more quickly than native species, leading them to dominate ecosystems and disrupt food webs. Rusty crayfish have a significant impact on ...
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