Invertebrate · GBIF taxon 2227381
Eastern Crayfish
Cambarus bartoniiAlso known as Appalachian Brook Crayfish, Common Crayfish, Barton's Crayfish
Eastern crayfish inhabit oxygen-rich headwater streams and rocky mountain brooks, sheltering beneath flat stones during daylight hours. Nightfall brings these heavy-clawed crustaceans out to forage along stream beds for detritus, fallen leaves, and small aquatic invertebrates. Their burrowing and feeding activities turn over gravel substrate and break down organic debris, forming a crucial foundation for Appalachian stream ecosystems.
FreshwaterNocturnalCrustacean
—observations
—countries
—peak records
Least ConcernConservation statusIUCN Red List categoriesLCNTVUENCREWEXLeast ConcernRed List categories, explained →
Diet & prey
- Aquatic Insect Larvae
- Decaying Plant Matter
- Freshwater Snails
Predators
- Smallmouth Bass
- Raccoons
- Green Herons
ThreatsSiltation from land development, water pollution, agricultural runoff, and invasive crayfish competition.
HabitatsCool, fast-flowing headwater streams, mountain brooks, springs, and rocky river margins.
Life span3 to 5 years
Size / weightNot available
Classification
- FamilyCambaridae
- SpeciesCambarus bartonii
Range data is not available yet.
Interaction riskLow
- Low
- Moderate
- High
- Very high
- Why interaction risk is low
- May pinch forcefully with large claws if handled; observe from the water's edge or hold gently behind the claws.
Responsible observation
- Stream Etiquette: Carefully return lifted rocks to their original placement to protect delicate freshwater microhabitats.
- Safe Handling: Pick up from directly behind the large claws, pinching the sides of the carapace gently to avoid getting pinched.
- Spotting Strategy: Search shallow riffles with a small flashlight after dark when individuals active forage.
Competitor no rights reserved, uploaded by Kent P. McFarland · cc0
Predator USFWS Mountain Prairie / Public domain · cc0
Predator (c) lwolfartist, some rights reserved (CC BY) · cc-by
Close Relative Lacunicambarus / CC BY-SA 4.0 · cc-by-sa
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