Theses and Dissertations
Issuing Body
Mississippi State University
Advisor
Kröger, Robert
Committee Member
Tucker, Craig S.
Committee Member
Allen, Peter J.
Date of Degree
8-17-2013
Document Type
Graduate Thesis - Open Access
Major
Wildlife and Fisheries Science
Degree Name
Master of Science
College
College of Forest Resources
Department
Department of Wildlife, Fisheries and Aquaculture
Abstract
Water management practices to reduce mass discharge are a major point of concern for aquaculture producers. This study assessed effects of consecutive low-grade weirs on chemical retention and settling of aquaculture pond effluent in a single drainage ditch. Two control and nine treatment discharges were conducted September - October 2012. Control discharge dissolved inorganic phosphorus (DIP) load increased 154%, whereas total inorganic phosphorus (TIP), ammonia, and nitrate loads decreased (47%, 43%, and 63%, respectively). Treatment discharge nutrient loads decreased across all analytes (80% DIP, 86% TIP, 89% ammonia, 89% nitrate). However, control and treatment discharges concentrations of DIP and nitrate increased, whereas TIP and ammonia concentrations decreased. All discharges reduced total and volatile suspended solid loads 72% - 94%, with removal rates of 0.02 ± 0.01 mg/L/min total and 0.02 ± 0.001 mg/L/min volatile suspended solids. Results indicate ditches fit with low-grade weirs may be an innovative management practice.
URI
https://hdl.handle.net/11668/21037
Recommended Citation
Flora, Corrin Lee, "Mitigating Aquaculture Effluent through Use of Low-Grade Weirs" (2013). Theses and Dissertations. 3119.
https://scholarsjunction.msstate.edu/td/3119
Comments
effluent||mitigation||nutrients||aquaculture||suspended solids||weir