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Bay of Quinte Remedial Action Plan :: Healthy Bay, Healthy Community

Beneficial Use Impairment #8

BUI #8 - Eutrophication and undesirable algae

Status - Impaired One of the main environmental issues with the Bay has always been the amount of nutrients entering it, particularly phosphorus.  Phosphorus is a naturally-occurring element, essential to all life. In just the right amount, it’s a beneficial, life-giving nutrient for rivers, lakes, bays, and streams.  On the other hand, too much phosphorus plays havoc with nature.     

ln aquatic ecosystems like the Bay of Quinte, the ability of phosphorus to promote rapid growth causes problems. It takes only 1 lb. of phosphorus to grow 500 lbs of algae. 
This nutrient-enrichment process is known as eutrophication, and it’s a classic example of too much of a good thing.      

The BQRAP has reduced the amount of phosphorus entering the Bay from multiple sources, both rural and urban, such as sewage treatment plants, stormwater run-off, and agricultural land practices.
With the reduction in phosphorus levels, water clarity has improved due to reduced algae. Making the Bay one of the most picturesque spots in Lake Ontario.   
Underwater plants have re-grown providing fish with habitat, helping to increase the varieties of fish in the Bay.      

Despite the reductions in phosphorus inputs, the current phosphorus levels are still a major concern. 
A Phosphorus Management Strategy is being developed to outline best practices for dealing with phosphorus issues in the future.    

Criteria and supporting evidence

1. A 25 percent reduction in total phosphorus (TP) in the upper Bay of Quinte. Impaired

Reduce the average concentration of TP from 40 μg /L to 30 μg /L in the upper Bay of Quinte for the period of May to October. Note:  Modelling recommended new targets.

2. A 40 percent reduction in algae in the Upper Bay of Quinte. Impaired

Demonstrate a change in total phytoplankton biomass such that the average pre-1990 density of 7.0-8.0 g/m3 to is reduced to 4.0-5.0 g/m3 for the period of May to October. Note:  Modelling recommended new targets


*Awaiting results of DFO/MNR  assessment of impact of current & proposed targets on food chain

Recent News & Event 

A Summer of Science on the Bay. Follow as we highlight our partner agencies this summer.

1. Quinte Conservation

2. Environment and Climate Change Canada (EC)

3. Coastal Wetland Monitoring

4. EC and Canadian Centre for Inland Waters

5. Fisheries and Oceans Canada

6. Ministry of Natural Resources and Forestry

Landowner Stewardship Programs - Spring is just around the corner. Time to start thinking about projects around your property - livestock fencing, shoreline naturalization, etc. Check out all the funding programs Here.....

Septic Stewardship Program... More Info  Find out if you are eligible for a free septic tank pump out and up to 80% cost sharing for minor repairs.

Healthy Soils Check-up Program - Farmers you could be eligible for FREE soil testing. More Info....

BQRAP July 2017 newsletter This newsletter covers: Summer Science, Beaches, Shoreline funding

BQRAP Annual Report 2016see what the RAP accomplished in 2016

Blue-Green Algae ...  More Info

2017 desktop calendars ...Here Enjoy a new photo with a monthly calendar

Artist, Aidan Haley donates painting for education programs

Bay of Quinte Interpreted 3 - The artist's interpretations are posted.

Ontario's Great Lakes Strategy - More here

Great Lakes Protection Act Here

Quinte Area Bird Report The Quinte Area Bird Report is updated weekly. Read more....