New York Natural Heritage Program
Brackish Intertidal Mudflats
Brackish Intertidal mudflats Troy Weldy
System: Estuarine
SubSystem: Estuarine Intertidal

State Protection: Not Listed
Federal Protection: Not Listed

State Rarity Rank: S1S2
A State Rarity Rank of S1S2 means: Critically Imperiled or Imperiled in New York - Especially or very vulnerable to disappearing from New York due to rarity or other factors; typically 20 or fewer populations or locations in New York, very few individuals, very restricted range, few remaining acres (or miles of stream), and/or steep declines. More information is needed to assign a single conservation status.

Global Rarity Rank: G3G4
A Global Rarity Rank of G3G4 means: Vulnerable globally, or Apparently Secure -- At moderate risk of extinction, with relatively few populations or locations in the world, few individuals, and/or restricted range; or uncommon but not rare globally; may be rare in some parts of its range; possibly some cause for long-term concern due to declines or other factors. More information is needed to assign a single conservation status.


Did you know?
Mudflats contain mobile invertebrates such as clams, snails, worms, and crustaceans that are adapted to the unstable surface of the mudflat, which is subjected to daily erosion and redeposition by tidal currents. These populations turnover at a high rate due to salinity changes. Fish such as alewife, American shad, white perch, rainbow smelt, striped bass, and smallmouth bass feed on these invertebrates in the submerged brackish intertidal mudflats during high tide. Muskrat, mink, egrets, herons, snapping turtles, and blue claw crab are also found in this community.

State Ranking Justification [-]
There are about twenty occurrences statewide. A few documented occurrences have good viability and a few are protected on public land or private conservation land. This community is restricted to brackish portions of estuaries in the state and includes a few moderate size, good quality examples. The current trend of this community is probably stable for occurrences on public land, or declining slightly elsewhere due to moderate threats that include alteration of the natural hydrology and invasive species.

Short-term Trends [-]

Long-term Trends [-]