Related Experiment Video
Updated: May 5, 2026

Laboratory-determined Phosphorus Flux from Lake Sediments as a Measure of Internal Phosphorus Loading
Published on: March 6, 2014
Instability in a small hypereutrophic urban lake
D G Burden1, R F Malone, P Gremillion
1Department of Civil Engineering, Louisiana State University, 70803, Baton Rouge, LA, USA.
Abstract:
Two summer intensive monitoring programs were conducted on a small Louisiana urban lake following restoration. Monitoring objectives were directed towards providing high resolution data needed to examine lake temporal and spatial variability. During the first year of post-restoration (1983), anaerobic conditions developed in the lake and a major fish kill (Ictalurus sp.) was observed. Total phosphorus concentrations at stations nearest the lake bottom were exceedingly high (>0.400 mg L(-1)), suggesting the source of phosphorus was sediment release. Monitoring conducted in 1984 indicated the re-establishment of high benthic demand and internal nutrient recycling patterns. Mean phosphorus levels increased by more than 50% over the observed 1983 values, while dissolved oxygen concentrations demonstrated gradients from surface to bottom and were consistently below 2.0 mg L(-1) in the bottom waters.
More Related Videos
07:59A Strain Gauge Monitor SGM for Continuous Valve Gape Measurements in Bivalve Molluscs in Response to Laboratory Induced Diel-cycling Hypoxia and pH
Published on: August 1, 2018
06:02A Low-Cost Method of Measuring the In Situ Primary Productivity of Periphyton Communities of Lentic Waters
Published on: December 16, 2022
Related Concept Videos
Freshwater Microbial Ecology
Marine Microbial Ecology
Derivatives: Problem Solving
Buoyancy and Stability for Submerged and Floating Bodies
Microenvironments
Primary Production