Salmon River Estuary

About This Priority Conservation Area

The 270 acre Salmon River Freshwater Estuary is a system of open waters and marshes located at the mouth of the Salmon River at Port Ontario. The system is bounded by carrier dunes at Lake Ontario to the west, and by the last river riffle in the Salmon River. Some of these lands are owned by the State Office of Parks, Recreation, and Historic Preservation, some by the New York State Department of Environmental Conservation, and some are privately owned (NYSDEC website).

Confirmed Invasive Species Observations

Confirmed observations of SLELO’s tiered invasive species at Salmon River Estuary PCA. For more information, visit iMapInvasives.

Tier List Species Recorded 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 PRISMLearn 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
  • Japanese knotweed
  • Water chestnut
  • 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
  • Purple loosestrife
  • Curly-leaf pondweed
  • Eurasian water-milfoil
  • European Frogbit

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

None at this time

Field Reports

Images From the Field