Responses of Lyngbya wollei to algaecide exposures and a risk characterization associated with their use

Ecotoxicology and Environmental Safety
Alyssa J CalomeniJ H Rodgers

Abstract

To make informed decisions regarding management of noxious algal growths, water resource managers require information on responses of target and non-target species to algaecide exposures. Periodic treatments of Phycomycin®-SCP (sodium carbonate peroxyhydrate) followed by Algimycin®-PWF (gluconate and citrate chelated copper) to control Lyngbya wollei growths for ten years provided an opportunity for a risk evaluation of treated coves in Lay Lake, AL. Abiotic sediment characteristics (acid soluble copper concentrations, acid volatile sulfides, percent organic matter and cation exchange capacity) and survival of Hyalella azteca and Chironomus dilutus were measured in sediment samples from treated and untreated coves to assess the bioavailability of potential copper-residuals. In laboratory studies to seek a more effective approach for managing the growth of Lyngbya, six algaecide treatments consisting of combinations of copper-based algaecides (Cutrine®-Ultra, Clearigate® and Algimycin®- PWF), a hydrogen peroxide based algaecide (Phycomycin®-SCP) and an adjuvant (Cide-Kick II) were assessed for efficacy in controlling L. wollei sampled from Lay Lake. The most efficient algaecide treatment was determined based on post-treatment al...Continue Reading

References

Jan 15, 1999·Archives of Environmental Contamination and Toxicology·D B HuggettJ H Rodgers
Jun 5, 2002·Archives of Environmental Contamination and Toxicology·C L Murray-GuldeJ H Rodgers
Oct 5, 2011·Archives of Environmental Contamination and Toxicology·W M Bishop, J H Rodgers
Oct 18, 2011·Bulletin of Environmental Contamination and Toxicology·Gintaras Svecevičius
Jul 23, 2013·Environmental Science and Pollution Research International·Jérémie CharlesPierre-Marie Badot

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