The state of U.S. freshwater harmful algal blooms assessments, policy and legislation

Hudnell, H. Kenneth

doi:10.1016/j.toxicon.2009.07.021

Cited by 159 publications

(91 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There are concerns that algaecides may pose a threat to humans as well and have detrimental impacts to lake and reservoir ecosystems [45].…”

Section: Physical and Chemical Methodsmentioning

confidence: 99%

“…Chemical flocculants can be applied to lakes and reservoirs as a clarifying agent to precipitate nutrients and algae from the water column although there are studies that indicate that these treatments are harmful to the ecosystem and may not be effective in the long run [45]. Aluminum sulfate is a commonly used chemical flocculant although there is some dispute over its effectiveness.…”

Section: Physical and Chemical Methodsmentioning

confidence: 99%

“…Some plants may be toxic to cyanobacteria such as umbrella plants, Canna and barley straw [45]. Canna and umbrella plants contain alleochemicals that are toxic to cyanobacteria and are able to inhibit their growth [70].…”

Section: Biological Methodsmentioning

confidence: 99%

“…Internal loading can often be due to high levels of disturbances due to wind-waves and resuspension [45] [85]. These physical disturbances can cause sediment that had previously settled to reenter the water column and become available to phytoplankton for nutrient use.…”

Section: Chemical Ecosystemmentioning

confidence: 99%

See 3 more Smart Citations

Sustainable Management of Eutrophic Lakes and Reservoirs

Wagner¹,

Erickson²

2017

JEP

View full text Add to dashboard Cite

Eutrophication of lakes and reservoirs is a major water quality problem that poses significant environmental, economic and social threats around the world. Monitoring and managing lakes and reservoirs to prevent or limit eutrophication, therefore, has significant value. The literature has been reviewed to study ecological engineering and management methods that have been and can be applied to improve water quality. Ecological engineering has the potential to be utilized to improve the design and operation of lakes and reservoirs through monitoring and active management of biological, chemical and physical components. Phosphorus concentrations can be reduced by effective and sustainable management practices to improve water quality.

show abstract

“…There are concerns that algaecides may pose a threat to humans as well and have detrimental impacts to lake and reservoir ecosystems [45].…”

Section: Physical and Chemical Methodsmentioning

confidence: 99%

Section: Physical and Chemical Methodsmentioning

confidence: 99%

Section: Biological Methodsmentioning

confidence: 99%

Section: Chemical Ecosystemmentioning

confidence: 99%

See 2 more Smart Citations

Sustainable Management of Eutrophic Lakes and Reservoirs

Wagner¹,

Erickson²

2017

JEP

View full text Add to dashboard Cite

show abstract

“…Consequently, the prevention and controlling of algal blooms is of great importance. The abatement of nutrient levels in water bodies is thought to be fundamental for eradicating phytoplankton blooms; however, this is unrealizable in the short term (Johnes et al 2007;Hudnell 2010). Therefore, emergency measures are urgently needed (Ridge et al 1999).…”

Section: Introductionmentioning

confidence: 99%

Controlling of cyanobacteria bloom during bottleneck stages of algal cycling in shallow Lake Taihu (China)

Jia

Yang

et al. 2013

Journal of Freshwater Ecology

View full text Add to dashboard Cite

To suppress the occurrence of phytoplankton blooms dominated by cyanobacteria, control measures were implemented during the bottleneck stages of algal succession, overwintering and pre-recruitment, using a combination of chemical and biological algicides. First, water and sediment samples were incubated in the laboratory to determine the threshold temperature for cyanobacteria recruitment. Second, the functional characteristics of candidate algicides were screened. Third, an in situ pilot experiment was conducted to test the feasibility of this method. Our results indicated that (1) the recruitment of cyanophytes was initiated at 15 C, (2) H 2 O 2 and rice straw were the optimum algicides and their optimal concentrations were 10 mg/L and 1 g/L, respectively, and (3) following the combined application of H 2 O 2 and rice straw during overwintering and pre-recruitment, the biomass of cyanobacteria decreased by 27.1% during recruitment and by 53.2% during the first algal bloom. These results suggested that the combined application of H 2 O 2 and rice straw, during the bottleneck stages of algal cycling, suppressed the recruitment of cyanobacteria and decreased the magnitude of algal blooms, thus offering a promising choice for prevention of cyanobacterial blooms.

show abstract

Effect of tillage on macropore flow and phosphorus transport to tile drains

Williams¹,

King²,

Ford

et al. 2016

Water Resources Research

127

154

View full text Add to dashboard Cite

Elevated phosphorus (P) concentrations in subsurface drainage water are thought to be the result of P bypassing the soil matrix via macropore flow. The objectives of this study were to quantify event water delivery to tile drains via macropore flow paths during storm events and to determine the effect of tillage practices on event water and P delivery to tiles. Tile discharge, total dissolved P (DP) and total P (TP) concentrations, and stable oxygen and deuterium isotopic signatures were measured from two adjacent tile-drained fields in Ohio, USA during seven spring storms. Fertilizer was surface-applied to both fields and disk tillage was used to incorporate the fertilizer on one field while the other remained in no-till. Median DP concentration in tile discharge prior to fertilizer application was 0.08 mg L 21 in both fields. Following fertilizer application, median DP concentration was significantly greater in the no-tilled field (1.19 mg L 21 ) compared to the tilled field (0.66 mg L 21 ), with concentrations remaining significantly greater in the no-till field for the remainder of the monitored storms. Both DP and TP concentrations in the no-till field were significantly related to event water contributions to tile discharge, while only TP concentration was significantly related to event water in the tilled field. Event water accounted for between 26 and 69% of total tile discharge from both fields, but tillage substantially reduced maximum contributions of event water. Collectively, these results suggest that incorporating surface-applied fertilizers has the potential to substantially reduce the risk of P transport from tile-drained fields.

show abstract

The state of U.S. freshwater harmful algal blooms assessments, policy and legislation

Cited by 159 publications

References 51 publications

Sustainable Management of Eutrophic Lakes and Reservoirs

Sustainable Management of Eutrophic Lakes and Reservoirs

Controlling of cyanobacteria bloom during bottleneck stages of algal cycling in shallow Lake Taihu (China)

Effect of tillage on macropore flow and phosphorus transport to tile drains

Contact Info

Product

Resources

About