This Is AuburnElectronic Theses and Dissertations

Show simple item record

Phosphorus in Aquaculture Ponds: Controlling Technique and its Bioavailability to Cyanobacteria


Metadata FieldValueLanguage
dc.contributor.advisorWang, Dengjun
dc.contributor.authorHamid, Ansley
dc.date.accessioned2023-04-28T17:55:46Z
dc.date.available2023-04-28T17:55:46Z
dc.date.issued2023-04-28
dc.identifier.urihttps://etd.auburn.edu//handle/10415/8677
dc.description.abstractUnderstanding the loading, speciation, and bioavailability of phosphorus (P) in aquaculture ponds is important for controlling P and harmful algal blooms. This thesis first explored flue-gas desulfurization (FGD) gypsum as a P sorption remediation technique and found that FGD gypsum can effectively remove P from water. The loading and speciation of P on different-sized particles in water collected from aquaculture ponds were then examined by the Hedley extraction method using different reagents. The conditionally bioavailable P extracted by NaOH represented the largest P pool (NaOH-P), followed by bioavailable pools of H2O-P and NaHCO3-P. Small colloids (100–450 nm in size) contained the highest total P (TP) and inorganic P (IP) concentrations, while small nanoparticles (1–50 nm) exhibited the highest organic P (OP) concentration. Bioassay experiments for the cyanobacterium Microcystis aeruginosa with the same TP concentration supplied by different-sized particles showed side-induced growth trends and suggest transformation between IP and OP.en_US
dc.rightsEMBARGO_GLOBALen_US
dc.subjectSchool of Fisheries, Aquaculture, and Aquatic Sciencesen_US
dc.titlePhosphorus in Aquaculture Ponds: Controlling Technique and its Bioavailability to Cyanobacteriaen_US
dc.typeMaster's Thesisen_US
dc.embargo.lengthMONTHS_WITHHELD:60en_US
dc.embargo.statusEMBARGOEDen_US
dc.embargo.enddate2028-04-28en_US
dc.contributor.committeeKnappenberger, Thorsten
dc.contributor.committeeHoang, Tham
dc.creator.orcid0000-0001-5908-5852en_US

Files in this item

Show simple item record