U.S. FWS
Environmental Conservation Online System
Conserving the Nature of America

Recovery Plan Action Status

Plan Name: Curtis' Pearly Mussel
Plan Status: Final
Plan Date: 04-Feb-86
Lead Agency: USFWS
Lead Office: Columbia Ecological Services Field Office ( (573) 234-2132 )
Species Action Priority # Action # Action Description Action Status Est. Initiation Date Est. Completion Date Responsible Parties Work Type Labor Type Action Comments Implementation Activities
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A1 Define habitat needs Partially Complete Prior to FY 1995 USFWS Regional Office 3 - Endangered Species, USFWS Research, Missouri Department of Conservation Research: Habitat Requirements Graduate Student
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A2 Review habitat impacting proposals Ongoing Current Prior to FY 1995 USFWS Regional Office 3 - Endangered Species, U.S. Forest Service, Mark Twain National Forest, Missouri Department of Conservation, U.S. Army Corps of Engineers Other: Regulations Internal Technical Assistance
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A3 Land protection planning Not Started USFWS Regional Office 3 - Endangered Species, U.S. Forest Service, Mark Twain National Forest, Missouri Department of Conservation Management: General Internal Administrative Includes planning for Little Black River, Castor River & Cane Creek
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A4 Protect riparian zone Partially Complete Prior to FY 1995 USFWS Regional Office 3 - Reality, USFWS Regional Office 3 - Endangered Species, U.S. Forest Service, Mark Twain National Forest, Missouri Department of Conservation, U.S. Army Corps of Engineers Acquisition Internal Administrative Task Duration: Est. FY 90 completion; FY 1987 - 1989 Costs TBD by strategies developed in task A3
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A5 Other habitat protections Not Started USFWS Regional Office 3 - Law Enforcement, USFWS Regional Office 3 - Endangered Species, U.S. Forest Service, Mark Twain National Forest, Missouri Department of Conservation Other Contract FY 1987 - 1989 Costs and Duration TBD by strategies developed in task A3
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A6 Monitor protected populations Discontinued Prior to FY 1995 USFWS Regional Office 3 - Endangered Species, Missouri Department of Conservation Research: Population Surveys Graduate Student No extant populations are currently known. This action will resume when a population is located. Monitor populations every other year
Curtis pearlymussel (Epioblasma florentina curtisii) 1 A7 Determine the most probable causes of decline of mussels in the Little Black River system, the location of the last and largest known population of the Curtis pearlymussel. Ongoing Current FY 2011 FY 2013 Missouri Department of Conservation, USFWS Research Research: Ecosystem Studies, Research, Research: Environmental Contaminants Graduate Student, Internal Technical Assistance
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1a(1) Evaluate habitat conditions Ongoing Current Prior to FY 1995 USFWS Regional Office 3 - Endangered Species, USFWS Research, Missouri Department of Conservation Research: Habitat Status Graduate Student Will begin following completion of task A1. Estimate $25K total cost
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1a(2) Methods to improve habitat Not Started USFWS Regional Office 3 - Endangered Species, USFWS Research, Missouri Department of Conservation Research: Management Techniques Contract Duration TBD. Will commence after task B1a(1) completed
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1a(3) Improve habitat Not Started USFWS Regional Office 3 - Endangered Species, Missouri Department of Conservation Management Contract Duration TBD. Follows B1a(2)
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1b(1) Identify low-density populations Not Started USFWS Regional Office 3 - Endangered Species, Missouri Department of Conservation Research: Population Surveys Contract Much necessary data should be available from tasks A6 and B1a(1). Further work will await completion of those tasks
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1b(2) Determine how many individuals constitute a viable population Not Started USFWS Regional Office 3 - Endangered Species, USFWS Research, Tennessee Valley Authority , Missouri Department of Conservation Research: Other Information Contract Duration TBD. To be initiated following completion of task B
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1b(3) Develop methods for artificial culturing and transplantation Complete FY 1995 - FY 1999 FY 2009 USFWS Regional Office 3 - Endangered Species, USFWS Research, Tennessee Valley Authority Research: Propagation Species Expert Can adapt methods currently being developed for other naiades by Missouri State University
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1b(4) Augment populations Not Started USFWS Regional Office 3 - Endangered Species, U.S. Forest Service, Mark Twain National Forest, USFWS Research, Missouri Department of Conservation Management: Propagation Contract Duration TBD. To follow tasks B1b(1) and (3)
Curtis pearlymussel (Epioblasma florentina curtisii) 2 B1c Monitor enhancement actions Not Started USFWS Regional Office 3 - Endangered Species, Missouri Department of Conservation Research: Habitat Status Contract Duration TBD. To follow tasks B1a(3) and B1b(4)
Curtis pearlymussel (Epioblasma florentina curtisii) 3 B2a Identify limiting factors in former range Ongoing Current FY 2000 - FY 2004 FY 2010 USFWS Regional Office 3 - Endangered Species, USFWS Research, Arkansas Game and Fish Commission , Missouri Department of Conservation Research: Habitat Status Graduate Student
Curtis pearlymussel (Epioblasma florentina curtisii) 3 B2b Eliminate limiting factors in former range Ongoing Current FY 2000 - FY 2004 USFWS Regional Office 3 - Endangered Species, Arkansas Game and Fish Commission , Missouri Department of Conservation, U.S. Army Corps of Engineers Management: General Internal Administrative Duration TBD. To follow tasks B2a
Curtis pearlymussel (Epioblasma florentina curtisii) 3 B2c Reintroductions into former range Not Started USFWS Regional Office 3 - Endangered Species, U.S. Forest Service, Mark Twain National Forest, Arkansas Game and Fish Commission , Missouri Department of Conservation Management: Propagation Contract Duration TBD. To follow tasks B1b(3) and B2b
Curtis pearlymussel (Epioblasma florentina curtisii) 3 B2d Protect reintroduction sites Not Started USFWS Regional Office 3 - Law Enforcement, USFWS Regional Office 3 - Endangered Species, Arkansas Game and Fish Commission , Missouri Department of Conservation Other Internal Administrative To follow task B2c
Curtis pearlymussel (Epioblasma florentina curtisii) 3 B2e Monitor reintroduced populations Not Started USFWS Regional Office 3 - Endangered Species, Arkansas Game and Fish Commission , Missouri Department of Conservation Research: Population Surveys Contract To follow task B2d
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