2023 Early Hearing Detection & Intervention Conference
March 5-7, 2023 • Cincinnati, OH
6/08/2017 | 9:30 AM - 9:45 AM | ON THE PROVENANCE OF AN ORCONECTES POPULATION IN THE JAMES RIVER BASIN, VIRGINIA | 305A
ON THE PROVENANCE OF AN ORCONECTES POPULATION IN THE JAMES RIVER BASIN, VIRGINIA
We investigated the origin of a Virginia population of Orconectes crayfish population found in the upper James River and a small portion of the upper Roanoke River basins in western Virginia. This population was first noticed by several researchers, and although the precise identity and provenance of the population was unclear, genetic evidence suggested links to Orconectes populations in the Ozark region of Missouri and Arkansas. We tested the hypothesis that it was native to both regions or native to one region and introduced to the other using genetic data. We sequenced a portion of the mitochondrial cytochrome oxidase I gene and NADH dehydrogenase 2 gene from individuals across the known range in Virginia, and compared them to sequences from several Orconectes species from Arkansas and Missouri. For both genes, the Virginia populations were completely devoid of sequence variation, strongly suggesting an introduced population of recent origin. These sequences were closest to samples of Orconectes ozarkae from south-central and southwestern Missouri.
- C03 Invertebrates
- C26 Invasive Species
- S12 Challenges, insights, and opportunities in crayfish conservation and ecology
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Presenters/Authors
Morgan Trimas
(), Washington & Lee University, trimasm18@mail.wlu.edu;
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Sarah Clifford
(), Washington & Lee University, cliffords19@mail.wlu.edu;
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Paul Cabe
(), Washington & Lee University, cabep@wlu.edu;
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Zachary Loughman
(), West Liberty University, zloughman@westliberty.edu;
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