follow us blog podcast facebook twitter flickr youtube
Bay of Quinte Remedial Action Plan :: Healthy Bay, Healthy Community

Beneficial Use Impairment #13

BUI #13 - Degradation of phytoplankton and zooplankton populations

Status - Impaired

Phytoplankton and zooplankton are the microscopic plants and animals that are at the base of the food web.

In the Bay of Quinte, phytoplankton and zooplankton species composition has changed over the years, because of reductions in phosphorus inputs and the introduction of invasive species.

Currently, the RAP team is developing a Phosphorus Management Strategy. Studies are being conducted to evaluate how varying reductions in phosphorus levels, recommended in the strategy, will affect the phyto and zooplankton populations in the Bay.  

Criteria and Supporting Evidence

1. Associated with the Bay of Quinte RAP phosphorus reduction targets for the Upper Bay of Quinte, demonstrate that chlorophyll a concentrations are about 12 μg/L in the Upper Bay of Quinte without the presence of zebra mussels (with zebra mussel, a further 2-3 μg/L chlorophyll a reduction should be anticipated). Impaired

2. Demonstrate a positive change in phytoplankton species composition with a decrease in nuisance and eutrophic indicator species (e.g., microcystis, anabaena). Impaired

3. Measure a trend toward a more diverse zooplankton community shown as a range of mean individual sizes between 0.45 and 0.5 mm for cladocerans. Impaired


Lake Ontario/Bay of Quinte - Current Water Levels

BQRAP Annual Report 2020

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

Landowner Stewardship Programs - 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.

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

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

Blue-Green Algae ...  More Info

Water Soldier - Find out about the impacts of this invasive plant on the Bay of Quinte 

Project Quinte 2017 Report
A multi-agency research and monitoring program for the Bay of Quinte

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....