#4564 · 🦀 crabs & other crustaceans

Rusty Crayfish

🇳🇱 Roestbruine Amerikaanse rivierkreeft ·Faxonius rusticus

LCleast concern 🦀 Crabs & other crustaceans 📍 outside Europe

10 photos from iNaturalist (Creative Commons) · credits & licences

what is it?

The rusty crayfish ( Faxonius rusticus ) is a large, aggressive species of freshwater crayfish which is native to the United States, in the Ohio River Basin in parts of Ohio, Kentucky, and Indiana. Its range is rapidly expanding across much of eastern North America, displacing native crayfishes in the process. The rusty crayfish was first captured in Illinois in 1973, and has been collected at over 20 locations in the northern portion of the state. In 2005,...

base stats

NL sightings 0iNaturalist, research grade
worldwide 5,634iNaturalist observations
threat LCleast concern

Bars compare against all animals on log scales: up to 300,000 Dutch and 600,000 worldwide sightings (the most-seen species), 150 t (blue whale), 30 m and 400 years (Greenland shark).