Common name: Threeridge

Scientific name: Amblema plicata (Say, 1817)

Class:

Bivalvia (Bivalves)

Order:

Unionoida (Freshwater Mussels)

Family:

Unionidae (Unionid Mussels)

Synonyms:

Other common names:

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Habitat type(s):

Habitat description(s)

Lacustrine:

Deep water, Shallow water

Riverine:

BIG RIVER, MEDIUM RIVER, CREEK, High gradient, Moderate gradient, Low gradient, Riffle, Pool

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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:

Unconfined river* (guide)

The aquatic community of large, quiet, base level sections of streams with a very low gradient.

* probable association but not confirmed.

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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:

S1S2

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 either S1 or S2.

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

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More information:

Conservation guide:

None

NatureServe explorer link:

https://explorer.natureserve.org/Taxon/ELEMENT_GLOBAL.2.118891/Amblema_plicata/