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The following schedule is subject to change (as of October 11, 2016). Please check back for updates. For more information about this meeting, go to: www.seafwa.org/conferences/2016
AUTHORS: Raynie Harlan, Louisiana State University Agricultural Center; Michael D. Kaller, Louisiana State University Agricultural Center; William E. Kelso, Louisiana State University Agricultural Center; Daniel Kroes, US Geological Survey; Robby Maxwell, Louisiana Department of Wildlife and Fisheries; Tiffany E. Pasco, Louisiana State Agricultural Center; Steve W. Roberts, US Army Corps of Engineers; Brac Salyers, Louisiana Department of Wildlife and Fisheries
ABSTRACT: Since 2005, Louisiana State University has collected bi-weekly water quality, flow velocity, habitat, and fish community data in support of a U.S. Army Corps of Engineers restoration project in the Buffalo Cove Water Management Unit of the Atchafalaya Basin Floodway System (ABFS). As part of this project, several water input elements and water blockage elements were constructed at strategic points within Buffalo Cove to improve water circulation and sedimentation patterns with the ultimate goal of improving water quality (EA#366). Using the Ecological Limits of Hydrologic Alteration framework (ELOHA; N.L. Poff et al. 2009) as a guide, we calculated pre-alteration and post-alteration hydrograph statistics at multiple Areas of Influence (AOI) delineated for each of the constructed flow alteration elements. We then related the differences detected between pre/post hydrograph statistics for each AOI to the restoration activities employed, and tested whether critical ecological parameters, such as dissolved oxygen and temperature, were positively or negatively impacted. We believe the ELOHA framework, although recommended mainly for use in developing regional instream flow standards, can also be an effective framework to guide quantitative analysis of the effects of floodplain restoration projects when flow alteration is a primary objective. We also believe that rigorous evaluation of restoration activities is a critical step in refining floodplain models for future restoration efforts and describing ecological health and flow regime relationships in the ABFS.
Wednesday October 19, 2016 9:00am - 9:20am CDT
Riverview A
