Endangered Species
Midwest Region

 

 

Map of Region 3 Minnesota Wisconsin Michigan


 


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Winged Mapleleaf (Quadrula fragosa)

Status: Endangered

Winged Mapleleaf

Photo by USFWS

 

Status: Endangered, listed June 20, 1991

 

Habitat: Medium to large rivers in mud, sand, or gravel

 

Lead Region: 3

 

Region 3 Lead Office: Twin Cities Field Office

 

Range: Arkansas, Minnesota, Missouri, Oklahoma, Wisconsin

 

Listen to a podcast!

Find out about the winged mapleleaf mussel and its conservation from field biologist Phil Delphey.

 

Audio Clip

 

 

 

The winged mapleleaf is an endangered freshwater mussel. Once known to live in about 38 different rivers from Minnesota to Arkansas, it is now found in only 5 rivers: the St. Croix River in Minnesota and Wisconsin, the Ouachita and Saline Rivers in Arkansas, and the Bourbeuse River in Missouri. The St. Croix River contains the only population known to be reproducing. Propagation efforts are progressing with hopes of restocking portions of the mapleleaf's historic range.

 

Natural History, Ecology, and Regulatory Information

Fact sheet

 

Species Profile

 

Mussels of the St. Croix River

 

Fact sheet: Upper Mississippi River Section 7 Consultation

 

Recovery

August 17, 2012: Releasing Captive-Reared Mussels into the Mississippi

 

Winged Mapleleaf Propagation Activities 2010 - Minnesota and Wisconsin (1.6 MB) 2011

 

St. Croix River Winged Mapleleaf Conservation Project - Final Report (614 KB) 2010


Spotlight Species Action Plan 10-page PDF

 

Host Fish Identification and Early Life Thermal Requirements for the Federal Endangered Winged Mapleleaf Mussel (2-page PDF Adobe PDF Icon)


Winged Mapleleaf Mussel Early Life History Investigations Conducted by the U.S. Department of the Interior in FY 2004 (24-page PDF Adobe PDF Icon)

 

Recovery Plan (pdf file; 359 pages)

 


Mussels Home

Midwest Endangered Species Home

 

Last updated: July 16, 2014