Theses and Dissertations

Issuing Body

Mississippi State University

Advisor

Schramm, Harold L., Jr.

Committee Member

Belant, Jerrold L.

Committee Member

Allen, Peter J.

Date of Degree

1-1-2015

Document Type

Graduate Thesis - Open Access

Department

Department of Wildlife, Fisheries and Aquaculture

Abstract

The pallid sturgeon Scaphirhynchus albus is an endangered sturgeon distributed throughout the Mississippi River drainage. Habitat selection and movement have been identified as critical conservation information. Seventy-one pallid sturgeon were tagged with acoustic transmitters in the lower Mississippi River (LMR), and 53 sturgeon were tagged in the Atchafalaya River System (ARS). Twenty-two pallid sturgeon in the LMR and 30 in the ARS were monitored using stationary acoustic receivers to assess short-term movement. Pallid sturgeon in the LMR showed positive selection for island tip, outside-bend natural bank, wing dike, sandbar, outside-bend revetted bank, and secondary channel habitats. Pallid sturgeon in the ARS exhibited positive selection for both inside and outside-bend revetted banks, inside-bend natural banks, and water control structures. Fish selected against the main channel in both systems. Short-term movement in the LMR and ARS was minimal and not related to any of the tested environmental factors.

URI

https://hdl.handle.net/11668/21128

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