Posted by on Feb 15, 2016 in Blog


Eutrophication is the ecosystem response to the addition of artificial or natural substances, mainly phosphates, through detergents, fertilizers, or sewage, to an aquatic system. This response does occur naturally but is often accelerated by human activities.

The Eutrophication Cycle and its Impacts

Excess nutrients, primarily nitrogen and phosphorus, cause excess algae and weed growth. When the weeds and algae die, they decompose and the nutrients contained in that organic matter are converted into inorganic form by microorganisms. This process consumes oxygen resulting in a reduction in the concentration of dissolved oxygen in the water. The depleted oxygen levels can result in fish kills.

The decomposed remains of the algae and weeds causes the nutrients to cycle back into the water column or settle to the bottom muck layer. These nutrients then contribute to the future growth of algae and weeds creating a vicious cycle of nutrient loading.

Left unmanaged, eutrophic water bodies can fill up with organic muck to such a level that costly dredging is the only solution.

When to Take Action Against Eutrophication

Ideally, early action to prevent and or arrest algae blooms is your first step. After an algae bloom, it is a very useful exercise to determine the cause and, if possible, remediate ecosystem imbalances, including nutrient loading. Later stage solutions, including aeration, phosphorus inactivation or dredging can be very effective, even for aquatic systems that have transitioned to swampland.

What are Some of the Solutions?

Depending on the stage of eutrophication in your pond or lake, aeration, bioaugmentation or even mechanical dredging may be called for. Strategies to reduce nutrient loading in your water body’s ecosystem may be required to re-establish a healthy balance in your pond. The benefit of reducing human-caused nutrient loading is that it also reduces your ongoing aquatic management challenges.

Contact us to being our initial assessment process

Our initial assessment will focus on gathering basic information about your pond or lake and will enable you to determine how you would like to proceed with restoring your water. Contact us today!

Contact Smoky Trout


  • algae blooms
  • bad odours
  • fish kills
  • high pH and TSS levels
  • summer turnovers
  • excessive weeds


  • Private lakes & ponds
  • industrial wastewater treatment
  • storm water ponds
  • tailing ponds
  • industrial & agriculture