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Georgia Journal of Science

Article Title

ASSESSMENT OF HABITAT PREFERENCES OF THE HIWASSEE CRAYFISH CAMBARUS HIWASSEENSIS HOBBS, 1981

Abstract

The Hiwassee crayfish is a relatively rare species endemic to the Hiwassee River watershed in north Georgia and western North Carolina. A lack of information exists on this species, and no studies have been conducted on the habitat preferences or life history of this species. This study defined the specific habitat preferences of Cambarus hiwasseensis Hobbs, 1981 in a small second order stream. From August to November 2016, 146 1-m2 quadrants were randomly sampled from an 800-m stream reach. Twenty-one habitat parameters were defined for each 1-m2 quadrat. Logistic regression models will be used to define the probability of presence of C. hiwasseensis for various habitat parameters and a multivariate model selection procedure will be used to identify important habitat parameters. Principle components analysis will be used to compare habitat preferences of C. hiwasseensis to sympatric species such as the common crayfish Cambarus bartoni.

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