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Stream-Dwelling Crayfishes of the North Fork of the White River Drainage of Missouri, with Additional Notes from Arkansas, USA
DiStefano RJ, Ascani EL, Bratcher RB, Hrdina AN, Ellingsworth EA and Wagner BK 
Published Online: 12/31/2023
Abstract
Comprehensive surveys are critical to conserve and monitor crayfish communities, imperiled species, and detect crayfish invasions. The Missouri portion of the North Fork White River drainage (MONFWR) was never comprehensively surveyed, but adjacent drainage surveys suggested it could harbor species of conservation concern (SOCC). We surveyed the MONFWR to determine crayfish species richness, distributions of potential SOCC, and potential invasive species. We included recent sampling of the Arkansas portion of the drainage for a more holistic assessment of the entire drainage. We examined potential changes in crayfish communities after three decades at 22 previously sampled MONFWR locations. We also collected the first habitat association data for the endemic, Faxonius longidigitus. We detected eight taxa; none that were not known from the drainage. Faxonius neglectus chaenodactylus and Cambarus hubbsi were SOCC; F. n. chaenodactylus was common and abundant in the MONFWR; C. hubbsi was detected at only one site in Arkansas. Faxonius neglectus neglectus and Faxonius virilis were each detected only once and are likely introduced. Intermittent streams harbored diversity and abundance rivaling perennial segments. We observed no notable temporal differences between 22 historical and current samples. Faxonius longidigitus, detected at few sites in low numbers, was associated with deeper waters and larger substrates.
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DiStefano RJ, Ascani EL, Bratcher RB, Hrdina AN, Ellingsworth EA and Wagner BK. (2023). Stream-Dwelling Crayfishes of the North Fork of the White River Drainage of Missouri, with Additional Notes from Arkansas, USA. Freshwater Crayfish 28(1):11-25. doi: 10.5869/fc.2023.v28-1.11
Author Information
Robert J. DiStefano,* Central Regional Office and Conservation Research Center, Missouri Department of Conservation, 3500 East Gans Road, Columbia, Missouri, United States65201. E-mail: Distef@Tranquility.net
Erica L. Ascani, , Missouri Department of Conservation, 3500 East Gans Road, Columbia, Missouri, United States65201. E-mail:
Robert B. Bratcher, , Missouri Department of Conservation, 3500 East Gans Road, Columbia, Missouri, United States65201. E-mail:
Ashley N. Hrdina, , Missouri Department of Conservation, 3500 East Gans Road, Columbia, Missouri, United States65201. E-mail:
Emile A. Ellingsworth, , Missouri Department of Conservation, 3500 East Gans Road, Columbia, Missouri, United States65201. E-mail:
Brian K. Wagner, , Arkansas Game and Fish Commission, 915 E. Sevier Street, Benton, Arkansas, United States72015. E-mail: hrothgar950@gmail.com
Corresponding Author indicated by an *.
Publication History
Manuscript Submitted: 4/21/2023
Manuscript Accepted: 11/11/2023
Published Online: 12/31/2023
Published in Print: 12/31/2023
Funding Information
No specific funding statement is available for this article.