Water Quality Improvements
Algal blooms turn garden ponds opaque, make some fisheries virtually un-fishable and cause oxygen depletion in others, and impoverish the aquatic ecosystem in wildlife ponds and park lakes. We have the techniques to help solve your water quality problems.
Every year, lake and pond owners in the UK spend hundreds of millions of pounds trying to suppress algae and maintain clear water. Algal blooms turn garden ponds opaque, make some fisheries virtually un-fishable and cause oxygen depletion in others, and impoverish the aquatic ecosystem in wildlife ponds and park lakes. Lake owners can be seduced by the promise of a quick fix to their algal problems in the form of algicides, phosphate-stripping chemicals or flocculants, but the benefits tend to be short-term; natural algal control mechanisms are often suppressed, and susceptible algae can be replaced by recalcitrant types that readily bloom between treatments.
The problems are particularly acute for local authorities and water companies, because of the potential risks to public health from blue-green algae and the high cost of removing algal biomass, blue-green algal toxins and taste/odour compounds of algal origin from the water supply.
The maintenance of good water quality is governed by a few simple principles – simple, that is, to understand, but often very difficult to apply: Reducing the availability of nutrients, particularly phosphate, by controlling inputs and inhibiting nutrient recycling from the sediment layer;
Encouraging the establishment of aquatic plants (macrophytes) to compete directly with algae for light and nutrients and provide a habitat for algal-grazing invertebrates. Sustaining high populations of Daphnia and other filter-feeding invertebrates by creating new habitats, and taking steps to reduce fish predation.
Aquascience Ltd has a proven track record in devising and installing long-lasting, sustainable algal control strategies based on the simple principles above. Prior to implementing a remediation plan, a macroinvertebrate survey is recommended as a benchmark to measure future improvements in water quality and flag up deficiencies in the natural algal control mechanisms.