47thAnnual Southeastern Fishes Council

Abstract Submission Instructions

Submission Deadline - Titles and abstracts must be submitted by October 22nd, 2021. Submissions addressing original research or syntheses related to ecology, ethology, systematics and conservation of southeastern fishes are welcome, and will be accepted in the order received. Submit early! If we receive titles and abstracts after all slots for oral presentations are filled, we will ask that the authors present in the poster session provided there is space available.

Posters (in person only) - Poster size is limited to maximum of 48” wide. If you have other requirements please contact David Werneke to verify availability.

Presentations (in person or virtual) - Presentations are limited to 15 minutes, including time for questions. Computer and projector will be provided.

Lightning Talks (in person or virtual) - Presentations are limited to five minutes with no questions allowed. These will be scheduled for Thursday so that authors and audience can discuss presentations during the social that evening.

Abstract Limits - Abstracts are limited to 300 words (no abstract needed for lightning talks). Any abstracts submitted that are longer may be edited for brevity by organizers without the consent of authors.

Authorship - Multiple authors are acceptable. However, please indicate which author is presenting (details on submission form). Only one submission per presenter is allowed.

Awards - If you are a student and would like to be included in a best student presentation competition, please indicate by selecting "yes" for Student Competition. Four categories are available, select only one. For in person student competition, select "In Person Oral" or "Poster." For virtual student competition, select "Virtual Oral" or “Virtual Lightning.

Sample abstract:

Population genomics of two headwater specialist darters in the Yazoo River basin

Jake Schaefer1, Joshua Hubbell1, and Brian Kreiser1

1. The University of Southern Mississippi, Department of Biological Sciences

Habitat fragmentation and changes to natural flow regimes are ongoing threats to aquatic biodiversity. The southeastern US is no exception with ongoing fragmentation isolating smaller populations in lower quality habitat resulting in reduced gene flow and diversity. The upper Yazoo River drainage in northern Mississippi is home to the endemic Yazoo Darter (Etheostoma raneyi) and the more broadly distributed Goldstripe Darter (E. parvipinne). Both species specialize in smaller headwater stream habitats. Given their limited distribution and persistent threats, Yazoo Darters are a species of conservation concern. The purpose of this study was to assess range wide population structure, genetic diversity, and broad patterns of connectivity for the Yazoo Darter. We sampled Goldstripe Darters to allow for comparison of these metrics between two ecologically similar species in the same drainage. We used Next Generation Sequencing (Genotyping by Sequencing) to generate a large SNP dataset for 160 Yazoo Darters (covering the entire range of the species), and 150 Goldstripe Darters from the upper Yazoo River drainage. We present analyses comparing and contrasting population genomic patterns of these species.

For Conference Information Contact: Bernie Kuhajda