New York Natural Heritage Program
Tidal River
The Hudson River from Storm King Mountain Andy Finton
System: Estuarine
SubSystem: Estuarine Subtidal

State Protection: Not Listed
Federal Protection: Not Listed

State Rarity Rank: S3
A State Rarity Rank of S3 means: Typically 21 to 100 occurrences, limited acreage, or miles of stream in New York State.

Global Rarity Rank: G4
A Global Rarity Rank of G4 means: Apparently secure globally, though it may be quite rare in parts of its range, especially at the periphery.


Did you know?
Although it has not been confirmed, the Hudson River is purported to be the world's longest tidal river, reaching 150 miles. The Hudson River is home to both the shortnose and Atlantic sturgeon. Their appearance today is almost the same as when dinosaurs walked the earth during the Triassic period, 245 to 208 million years ago. They are among the oldest living fish species. You can find more information on our sturgeon conservation guides.

State Ranking Justification [-]
This community is restricted to tidally influenced areas of the state. There is one large occurrence (Hudson River) and several small examples known from Long Island (e.g., Nissequogue and Carmans rivers). Tidal rivers are moderately threatened by pollution, shoreline development, dredging, commercial shipping, recreational overuse, and invasive species.

Short-term Trends [-]

Long-term Trends [-]