Common name: Alewife Floater
Scientific name: Utterbackiana implicata (Say, 1829)

Class:
Bivalvia (Bivalves)
Order:
Unionoida (Freshwater Mussels)
Family:
Unionidae (Unionid Mussels)
Synonyms:
Other common names:

Habitat type(s):
Habitat description(s)
Lacustrine:
Shallow water
Riverine:
MEDIUM RIVER, Moderate gradient, CREEK, Low gradient

Ecological systems and subsytems (about):
RIVERINE - NATURAL STREAMS:
Confined river (guide)
The aquatic community of relatively large, fast flowing sections of streams with a moderate to gentle gradient.
RIVERINE - NATURAL STREAMS:
Deepwater river
The aquatic community of very large, very deep, quiet, base level sections of streams with a very low gradient. In places the water is deep enough so that light cannot reach the river bottom.

Conservation:
Global conservation status rank:
G5
Secure globally - Common in the world; widespread and abundant (but may be rare in some parts of its range).
State conservation status rank:
S1
Critically Imperiled in New York - Especially vulnerable to disappearing from New York due to extreme rarity or other factors; typically 5 or fewer populations or locations in New York, very few individuals, very restricted range, very few remaining acres (or miles of stream), and/or very steep declines.
Federal protection:
Not Listed
State protection:
Not Listed
Not listed or protected by New York State.
SGCN:
NYNHP track status:
Y: Track all extant and selected historical EOs

More information:
Conservation guide:
https://guides.nynhp.org/alewife-floater/
NatureServe explorer link:
https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.108462/Utterbackiana_implicata/