Triangular Kidneyshell (Ptychobranchus greenii)
Where Listed: WHEREVER FOUND
Populations are small and localized. One population in the Sipsey Fork, Winston County, Alabama, showed a decline from 0.88 to 0.18/square meter between 1993 and 2002, respectively, apparently due to drought (Haag and Warren 2003b). There is no other trend data.
- States/US Territories in which the Triangular Kidneyshell, is known to or is believed to occur: Alabama , Georgia , Tennessee
- US Counties in which the Triangular Kidneyshell, is known to or is believed to occur: View All
- USFWS Refuges in which the Triangular Kidneyshell, is known to occur:
Cahaba River National Wildlife Refuge
|Status||Date Listed||Lead Region||Where Listed|
|03/17/1993||Southeast Region (Region 4)|
» Federal Register Documents
|Date||Title||Plan Action Status||Plan Status|
|11/17/2000||Recovery Plan for the Mobile River Basin (15 species)||View Implementation Progress||Final|
|Date||Citation Page||Title||Document Type|
|06/29/1998||63 FR 35277 35278||Notice a Availability of a Revised Draft Recovery Plan for the Mobile River Basin Aquatic Ecosystem for Review and Comment||
|06/14/2005||70 FR 34492 34494||Initiation of 5-Year Reviews of 25 Southeastern Species||
|09/23/2014||79 FR 56821 56823||5-Year Status Reviews of 27 Southeastern Species; Notice of initiation of reviews; request for information||
|04/07/2008||11 Southeastern mussels 5-year review|
» Critical Habitat
|Date||Citation Page||Title||Document Type||Status|
|07/01/2004||69 FR 40084 40171||Designation of Critical Habitat for Three Threatened Mussels and Eight Endangered Mussels in the Mobile River Basin Mussels in Mobile River Basin, AL||Final Rule||Final designated|
|03/26/2003||68 FR 14752 14832||Endangered and Threatened Wildlife and Plants; Proposed Designation of Critical Habitat for Three Threatened Mussels and Eight Endangered Mussels in the Mobile River Basin; Proposed Rule||Proposed Rule||Not Required|
To learn more about critical habitat please see http://ecos.fws.gov/crithab
» Conservation Plans
No conservation plans have been created for Triangular Kidneyshell.
» Life History
Movement / Home Range
When listed, the triangular kidneyshell was believed to survive in the headwaters of the Sipsey Fork, Little Warrior River, and the Conasauga River. The species has been confirmed to inhabit the Sipsey Fork and tributaries (Winston/Lawrence County, Alabama) and the Locust Fork (Blount County, Alabama) of the Black Warrior; Cahaba River (Bibb County, Alabama) and Little Cahaba River (Shelby County, Alabama); and Coosa tributaries Shoal Creek (Cleburne County, Alabama), Kelly Creek (Shelby County, Alabama), Big Canoe Creek (St. Clair County, Alabama), Conasauga River (Murray/Whitfield County, Georgia, Bradley County, Tennessee), Holly Creek (Murray County, Georgia), Coosawattee River (Gordon County, Georgia), and Oostanaula River (Floyd/Gordon County, Georgia) (Evans 2001, Feminella and Gangloff 2000, Gangloff 2003, Gangloff 2006, Haag and Warren 1997, Johnson and Evans, 2000, P. Johnson in litt. 2006, McGregor 1992, McGregor et al. 2000, Shepard et al, 1994, 1998; Warren and Haag 1994, Williams and Hughes 1998). Most populations are isolated by dams and impounded waters.
Gravid triangular kidneyshell females were observed in March 1994 and April 1996. Glochidia are packaged into conglutinates that mimic small aquatic fly larvae (Hartfield and Hartfield, 1996) or fish eggs (Haag and Warren, 1997). Suitable fish hosts have been identified as Warrior darter (Etheostoma bellator), Tuskaloosa darter, blackbanded darter and logperch (Haag and Warren, 1997). Ptychobranchus greenii is bradytictic, but conglutinates are generally mature between March and May. Glochidia are discharged bound as conglutinates that resemble dipteran larvae or darter eggs. Dipteran conglutinates are adhesive and attach to the substrate. Known fish hosts include Etheostoma bellator, E. douglasi, Percina kathae and P. nigrofasciata.
» Other Resources
NatureServe Explorer Species Reports -- NatureServe Explorer is a source for authoritative conservation information on more than 50,000 plants, animals and ecological communtities of the U.S and Canada. NatureServe Explorer provides in-depth information on rare and endangered species, but includes common plants and animals too. NatureServe Explorer is a product of NatureServe in collaboration with the Natural Heritage Network.
ITIS Reports -- ITIS (the Integrated Taxonomic Information System) is a source for authoritative taxonomic information on plants, animals, fungi, and microbes of North America and the world.
FWS Digital Media Library -- The U.S. Fish and Wildlife Service's National Digital Library is a searchable collection of selected images, historical artifacts, audio clips, publications, and video.