Nuisance cyanobacterial blooms are an important environmental problem. Toxins released by cyanobacteria can kill animals and cause illness in humans. The sustainable manage ment of toxic cyanobacteria would increase the conservation and amenity value of affected water bodies, and decrease on-site water treatment costs. Methods are available to kill or to prevent blooms but often the expense is prohibitive or the agent used is detrimental to desirable lake organisms. Different management strategies are therefore considered within the context of the current state of the UK water industry. Particular reference is made to the potential impact of the 1994 Ofwat-determined water-price increase limits on environmental policy and prioritization.
Anon1980: The UK nitrates 'timebomb' - fact or fiction? World Water December, 21-25.
2.
Arnell, N.W.1992: Impacts of climatic change on river flow regimes in the UK. Journal of the Institute of Water and Environmental Management6, 432-42.
3.
Braband, A., Faafeng, B.A., Kallqvist, T. and Nilssen, J.P.1983: Biological control of undesirable cyanobacteria in culturally eutrophic lakes. Oecologia60, 1-5.
4.
Brock, T.D.1973: Lower pH limit for the existence of blue-green algae: evolutionary and ecological implications. Science179, 480-83.
5.
Carmichael, W.W.1989: Freshwater cyanobacteria (blue-green) toxins. In Ownby, C.L. and Odell, G.V., editors, Natural toxins: characterization, pharmacology, and therapeutics, Oxford: Pergamon Press, 3-16.
6.
Eberly, W.R.1959: The metalimnetic oxygen maximum in Myers Lake. Investigating Industrial Lakes and Streams5, 1-46.
7.
EC1991: Council directive concerning urban waste water treatment. Official Journal of the European Communities L 135, 40-47.
8.
Eriksson, J.E., Toivola, D., Merilvoto, J.A.O., Karaki, H., Han, Y.G. and Hartshorne, D.1990: Hepatocyte deformation induced by cyanobacterial toxins reflects inhibition of protein phosphatases. Biochemical Biophysical Research Communications173, 1347-53.
9.
Falconer, I.R.1991: Tumor promotion and liver injury caused by oral consumption of cyanobacteria. Environmental Toxicology and Water Quality6, 177-84.
10.
Francis, G.1878: Poisonous Australian lake. Nature18, 11-12.
11.
Gerloff, G.C., Fitzgerald, G.P. and Skoog, F.1950: The isolation, purification, and culture of blue-green algae. American Journal of Botany37, 216-18.
12.
James, H.1992: Blue-green algal toxins in water. Laboratory Practice41, 11-13.
13.
Kratz, W.A. and Myers, J.1955: Nutrition and growth of several blue-green algae . American Journal of Botany42, 282-87.
14.
Lawton, L.A. and Codd, G.A.1991: Cyanobacterial (blue-green algal) toxins and their significance in UK and European waters. Journal of the Institution of Water and Environmental Management5, 460-65.
15.
Lund, J.W.G. and Moss, B.1990: Eutrophication in the United Kingdom. Report to the UK Soap and Detergent Industry Association. Liverpool : University of Liverpool.
16.
Mackintosh, C., Beattie, K.A., Klumpp, S., Cohen, P. and Codd, G.A.1990: Cyanobacterial microcystin-LR is a potent and specific inhibitor of protein phosphatases 1 and 2A from both mammals and higher plants . FEBS Letters264, 189-92.
17.
Nishiwaki-Matsushima, R., Ohta, T., Nishiwaki, S., Suganuma, M., Kohyama, K., Ishikawa, T., Carmichael, W.W. and Fujiki, H.1992: Liver cancer promoted by the cyanobacterial peptide toxin microcystin-LR. Journal of Cancer Research and Clinical Oncology118, 420-24.
18.
Nra1990: Toxic blue-green algae . Water Quality Series 2. London: National Rivers Authority.
19.
Pearsall, W.H.1932: Phytoplankton in the English Lakes II. The composition of the phytoplankton in relation to dissolved substances. Journal of Ecology20,241-62.
20.
Reynolds, C.S., Oliver, R.L. and Walsby, A.E.1987: Cyanobacterial dominance: the role of buoyancy regulation in dynamic lake environments. New Zealand Journal of Marine and Freshwater Research21, 379-90.
21.
Reynolds, C.S. and Walsby, A.E.1987: Water blooms. Biological Reviews50, 437-81.
22.
Sas, H., Ahlgren, I., Bernhardt, H., Bostrom, B., Clasen, J., Frosberg, C., Imboden, D., Kamp-Neilsen, L., Mur, L., De Oude, N., Reynolds, C.S., Schreurs, H., Seip, K., Sommer, U. and Vermij, S.1989: Lake restoration by reduction of nutrient loading . Sankt Augustin: Academia Verlag-Richarz .
23.
Scott, W.E.1991: Occurrence and significance of toxic cyanobacteria in southern Africa. WaterScience and Technology23, 175-80.
24.
Turner, P.C., Gammie, A.J., Hollinrake, K. and Codd, G.A.Pneumonia associated with contact with cyanobacteria. British Medical Journal300, 1440-41.
25.
Whitehead, P.G. and Hornberger, G.M.1984: Modelling algal behaviour in the River Thames. Water Research18, 945-53.
26.
Yeoman, S., Stephenson, T., Lester, J.N. and Perry, R.1987: The removal of phosphorus during wastewater treatment: a review. Environmental Pollution8, 183-233.
