Mud Bay

2021 Mud Bay Survey and Specimen Collection Brittney Rogers (2)

About This Priority Conservation Area

Mud Bay is an approximately 200-acre bay on the northeastern shore of Lake Ontario, south of the village of Cape Vincent in Jefferson County, New York. Public boating access is available from an unimproved gravel boat launch recently installed and maintained by the NYS Department of Environmental Conservation located off Bates Road on the south shore of the bay. Informal shoreline fishing access is also available at the eastern end of the bay in the area near the County Route 6 bridge. Several marinas also charge a small fee for public use of their concrete boat launch ramps.

Confirmed Invasive Species Observations

Confirmed observations of SLELO’s tiered invasive species at Mud Bay PCA. For more information, visit iMapInvasives

Tier List Species Established at This PCA

These invasive species tiers guide management priorities in New York State and are utilized by the Partnership For Regional Invasive Species Management or PRISM Network. The species categorized in each tier are dependent on species distribution, abundance, and management options available, and may vary depending on the region. The species listed below are the species categorized in the SLELO PRISM region. View a full list of tiered species in the SLELO PRISM.  Learn about New York State Invasive Species Tiers and view a Story-Map

Tier 1 Species

Early Detection/Prevention 

The management approach is Early Detection & Prevention. Species are not known to be in the SLELO region but are within 100 miles and an introduction pathway exists. 

Species Recorded at This PCA

No Tier 1 Species were found at this PCA at this time. 

Tier 2 Species



The management Approach is Eradication. Species are known to be present in the SLELO region but are in low abundance with suitable treatment methods available to make eradication feasible with Priority Conservation Areas. 

Species Recorded at This PCA

No Tier 2 Species were found at this PCA at this time. 

Tier 3 Species



The management approach is containment/exclusion. Species are too widespread for eradication from the region, but some areas remain unaffected. Targeted management can be used to suppress the population within Priority Conservation Areas. 

Species Recorded at This PCA

Pale swallow-wort
Yellow iris

Tier 4 Species

Suppression/Local Control


The management approach is suppression/local control. Species are present and widespread throughout the region with no chance of eradication. Localized management is applied to protect high-priority resources like rare plant habitats or recreation areas. 

Species Recorded at This PCA

Curly leaf pondweed
Eurasian water-milfoil
European frot-bit
Zebra mussel

Tier 5 Species



The management approach is to Monitor. Species may or may not be in the region but are difficult to respond to or require more knowledge of distribution, and management options. 

Species Recorded at This PCA

No Tier 5 Species were found at this PCA at this time. 

Species Found at this PCA that are not listed in SLELO PRISM's Tiers

  • Garlic mustard

Field Reports

Treatment Reports

Images From the Field