A troglobitic amphipod in the Ice Caves of the Shawangunk Ridge: Behavior and resistance to freezing

By

Espinasa, Luis
McCahill, Alex
Kavanagh, Amber
Espinasa, Jordi
Scott, Alyssa
Cahill, Amy

Type

Article

Date of Publication

2015

Original Publication

Subterranean Biology

Volume

15

Pages

95-104

Subjects

Amphipod , cryoprotectant , Ice Caves , scotophilia , Shawangunk , Stygobromus allegheniensis , Troglobiont , troglobite

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers

Identifiers

DOI: https://doi.org/10.3897/subtbiol.15.4733

 

Abstract

Stygobromus allegheniensis Holsinger, 1967 (Allegheny Cave Amphipod) is a troglobiotic crustacean commonly found in caves of the Northeast United States. We describe several new populations from the unique tectonic Ice Caves found in the Shawangunk Ridge in New York, USA. Results also show that despite being an eyeless species, it can detect particular wavelengths of light and individuals display scotophilia, a preference for darkness. Finally, the Ice Caves pose a challenge to any aquatic troglobiont; in the winter months, the Ice Caves freeze and the floor and walls become covered in solid ice. Our results show that S. allegheniensis may seek warmer waters within the cave, but can also survive being frozen in solid ice.