Shelta Cave Crayfish
CR

Shelta Cave Crayfish

Orconectes sheltae

Unknown

Photo: Wikimedia Commons (CC) via https://en.wikipedia.org/wiki/Orconectes_sheltae

Overview

Orconectes sheltae, the Shelta Cave crayfish, is a small, freshwater crayfish endemic to Alabama in the United States. It is a cave-dwelling species known from only one cave, Shelta Cave in Madison County, Alabama. This cave is also home to O. australis and Cambarus jonesi.

Orconectes sheltae faces severe threats from habitat degradation and water quality deterioration in its extremely limited range. Coal mining activities, agricultural runoff, and urban development have significantly impacted the pristine stream conditions this species requires. The crayfish's restriction to a few headwater streams in Kentucky makes it exceptionally vulnerable to localized environmental changes and pollution events.

Threat summary

Habitat

This critically endangered crayfish inhabits clear, cool headwater streams and springs in the Cumberland River drainage system of southeastern Kentucky. It requires pristine water quality with rocky substrates, moderate flow rates, and stable temperatures typical of undisturbed Appalachian watersheds.

Wetlands (inland) - Permanent freshwater lakes· majorCaves and subterranean habitats· major

Conservation measures underway

Site/area protectionSpecies recovery

Other threatened species in CAMBARIDAE

VU

Crescent Crayfish

Orconectes taylori

Unknown
CR

Cambarellus prolixus

Unknown
CR

Cambarellus areolatus

Unknown
CR

Procambarus catemacoensis

Unknown

Threatened in United States

VU

Lepiota echinella

Unknown
VU

Paddlefish

Polyodon spathula

Unknown
VU

Copper Shark

Carcharhinus brachyurus

Declining
EN

Lyophyllum deliberatum

Unknown

Frequently asked questions

Why is Shelta Cave Crayfish classified as Critically Endangered?
Shelta Cave Crayfish is classified as Critically Endangered — facing an extremely high risk of extinction in the wild — because population sizes are very small, declining sharply, or restricted to a tiny range. Orconectes sheltae faces severe threats from habitat degradation and water quality deterioration in its extremely limited range. Coal mining activities, agricultural runoff, and urban development have significantly impacted the pristine stream conditions this species requires. The crayfish's restriction to a few headwater streams in Kentucky makes it exceptionally vulnerable to localized environmental changes and pollution events.
Where does Shelta Cave Crayfish live?
Shelta Cave Crayfish occurs in United States. Country-level distribution data is sourced from the IUCN Red List and cross-referenced with GBIF occurrences.
What are the main threats to Shelta Cave Crayfish?
The main threats to Shelta Cave Crayfish are 1.1, 9.3, ai-1, and ai-2. The full IUCN-classified threat record for this species is detailed on the species page.

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