Taxonomy

Common Name: MUCKET, PINK
Phylum: MOLLUSCA
Class: BIVALVIA
Order: SCHIZODONTA
Family: UNIONIDAE
Genus: LAMPSILIS
Species: ABRUPTA

Taxonomic Authority: (HILDRETH)

Taxonomy References: 002, 003, 010

Status

FEDERAL ENDANGERED
INDICATOR
NONGAME
SENSITIVE
STATE ENDANGERED
STATE RANK S2
GLOBAL RANK G2

Status References: 001, 005, 006, 009, 010

Habitat Summary

Usually found in rivers with cobble-gravel bottom in water 1-10 feet deep.

Primary Habitat: Aquatic - river/stream

References: 002, 004

Distribution

General Occurrence in State:

Found in the big, Black, Gasconade, Little Black, Meramec, Osage, Sac, and St. Francis rivers *01,02,11*.

County Occurrence
Known Likely Unknown Not Likely Historic Extirpated
MILLER SCOTTCLARK  
BUTLER CAMDENDAVIESS  
FRANKLIN CAPE GIRARDEAUNEWTON  
WAYNE HENRYPLATTE  
CEDAR HICKORYSHANNON  
ST. LOUIS PHELPSBUCHANAN  
OSAGE MARIESCALDWELL  
COLE PEMISCOTCLAY  
GASCONADE NEW MADRIDDENT  
JEFFERSON STE. GENEVIEVEHOWELL  
RIPLEY MADISONJASPER  
  ST. CLAIRJOHNSON  
  MISSISSIPPIKNOX  
  PERRYLINN  
  LACLEDENODAWAY  
  DALLASPIKE  
  DUNKLINTEXAS  
   WRIGHT  
   ATCHISON  
   CASS  
   HOWARD  
   MACON  
   MONTGOMERY  
   OREGON  
   POLK  
   SHELBY  
   WARREN  
   ANDREW  
   BATES  
   CHRISTIAN  
   MARION  
   MONITEAU  
   PETTIS  
   SCHUYLER  
   BENTON  
   BOONE  
   CALLAWAY  
   CARROLL  
   CHARITON  
   CLINTON  
   CRAWFORD  
   HARRISON  
   LAFAYETTE  
   LEWIS  
   MERCER  
   MONROE  
   REYNOLDS  
   SCOTLAND  
   STODDARD  
   STONE  
   WORTH  
   BARRY  
   CARTER  
   COOPER  
   GREENE  
   HOLT  
   IRON  
   MCDONALD  
   MORGAN  
   PULASKI  
   SALINE  
   SULLIVAN  
   ADAIR  
   DOUGLAS  
   JACKSON  
   OZARK  
   PUTNAM  
   RANDOLPH  
   ST. FRANCOIS  
   VERNON  
   WASHINGTON  
   AUDRAIN  
   BARTON  
   BOLLINGER  
   DADE  
   DEKALB  
   GENTRY  
   LAWRENCE  
   LINCOLN  
   LIVINGSTON  
   RALLS  
   RAY  
   ST. CHARLES  
   TANEY  
   WEBSTER  

References for distribution: 001, 002, 004, 011

Distribution by Watersheds

Meramec R.
Big R.
St. Francis R. from Headwaters to Wappapello Dam
St. Francis R. from Wappapello Dam to Arkansas Border
Sac R.
Osage R. from Bagnell Dam to Mo. R.
Gasconade R. from Big Piney R. to Mo. R.
Black R.
Current R.

Comments:
Only 1 sighting in unit 08020202.*01*

Distribution by Ecoregions

Ozark Highlands

Distribution by Potential Natural Vegetation

Oak-Hickory Forest
Oak-Hickory-Pine Forest

Distribution by Natural Divisions of Missouri

Ozark Border
Ozark Border: Missouri River
Ozark Border: Mississippi River
Ozark: Springfield Plateau
Ozark: Upper Ozark
Ozark: St. Francois Mountains
Ozark: Lower Ozark

Habitat Associations

Species is associated with Aquatic habitats

National Wetlands Inventory Association:

Riverine

Aquatic Associations:

Riverine, lower perennial, Unconsolidated bottom, organic permanently flooded
Riverine, lower perennial, Unconsolidated bottom, sand permanently flooded
Riverine, lower perennial, Unconsolidated bottom, mud permanently flooded
Riverine, lower perennial, Unconsolidated bottom, cobble/gravel permanently flooded

References for Aquatic Associations:

002, 004

Habitat Types:

Permanent Stream

References for Habitat Types: 001

Terrestrial Natural Communities:

References for Terrestrial Natural Communities:

Food Habits

Trophic Level:

Omnivore

Larval Food Habits

Other food habits; Not Specified

Comments for larval food habits:
Parasitic, absorb nutrients from host *01*.

References for larval food habits: Comments for larval food habits:
001

Juvenile Food Habits

Other Microorganisms; Not Specified
Other food habits; Not Specified

Comments for juvenile food habits:
Eat any microorganisms which are small enough to be filtered *01*

References for juvenile food habits:
001

Adult Food Habits

Protozoans; Not Specified
Other Microorganisms; Not Specified
Bacillariophyceae (diatoms); Not Specified
Algae; Not Specified

Comments for adult food habits:
Food consists of any microorganisms that are small enough to be filtered *01*

References for adult food habits: 001, 013

Niche Requirements

Feeding Larvae Niche Requirements

Water temperature specified in comments(00010)
Substrate (not bottom type): animal substrate
Relation to substrate: occurs in substrate (penetrating)
Host specified in comments(00680)

References for feeding larvae niche requirements: 001, 002, 011

Resting Larvae Niche Requirements

Water temperature specified in comments(00010)
Host specified in comments(00680)

References for resting larvae niche requirements: 011

Feeding Juvenile Niche Requirements

Dissolved oxygen: needs high O2 concentrations - saturated (euoxyphilous)
Ph: prefers ph above 7.0 (alkaliphilous)
Turbidity: moderate turbidity
Siltation: low
Siltation specified in comments(00050)
Nutrient concentrations: prefers moderate nutrient concentrations (mesotrophic)
prefers clean water habitats, tolerateS infrequent periods of low d.o. if ph and temp. unaltered (saproxenous)
Substrate specified in comments(00080)
Relation to substrate: occurs in substrate (penetrating)
Bottom type: mud or silt
Bottom type: sand
Bottom type: pebble
Bottom type: gravel
Bottom type: rubble
Stability of bottom: stable
Gradient specified in comments(00140)
Current velocity specified in comments(00150)
Water level: permanently flooded
Salinity: prefers salt concentrations less than 500 mg/l (0.5 ppt)(oligohalobous)
Water depth specified in comments(00230)
Elevation specified in comments(00240)
Inland wetlands: permanent stream
Stream order: sixth order stream
Stream order: seventh order stream
Stream order: eighth order stream
Natural features: riffles
Host specified in comments(00680)

References for feeding juvenile niche requirements: 001, 002, 004

Resting Juvenile Niche Requirements

Dissolved oxygen: needs high O2 concentrations - saturated (euoxyphilous)
PH: prefers ph about 7.0 (neutral)
Turbidity: high turbidity
Siltation: low
Nutrient concentrations: prefers moderate nutrient concentrations (mesotrophic)
prefers clean water habitats, tolerateS infrequent periods of low d.o. if ph and temp. unaltered (saproxenous)
Substrate specified in comments(00080)
Relation to substrate: occurs in substrate (penetrating)
Bottom type: mud or silt
Bottom type: sand
Bottom type: pebble
Bottom type: gravel
Bottom type: rubble
Stability of bottom: stable
Gradient specified in comments(00140)
Current velocity specified in comments(00150)
Water level: permanently flooded
Salinity: prefers salt concentrations less than 500 mg/l (0.5 ppt)(oligohalobous)
Water depth specified in comments(00230)
Elevation specified in comments(00240)
Inland wetlands: swamp
Stream order: sixth order stream
Stream order: seventh order stream
Stream order: eighth order stream
Natural features: riffles
Host specified in comments(00680)

References for resting juvenile niche requirements: 001, 002, 004

Breeding Adult Niche Requirements

Dissolved oxygen: needs high O2 concentrations - saturated (euoxyphilous)
Ph: prefers ph above 7.0 (alkaliphilous)
Turbidity: moderate turbidity
Siltation: low
Nutrient concentrations: prefers moderate nutrient concentrations (mesotrophic)
prefers clean water habitats, tolerateS infrequent periods of low d.o. if ph and temp. unaltered (saproxenous)
Substrate specified in comments(00080)
Relation to substrate: occurs in substrate (penetrating)
Bottom type: mud or silt
Bottom type: sand
Bottom type: pebble
Bottom type: gravel
Bottom type: rubble
Stability of bottom: stable
Gradient specified in comments(00140)
Current velocity specified in comments(00150)
Water level: permanently flooded
Salinity: prefers salt concentrations less than 500 mg/l (0.5 ppt)(oligohalobous)
Water depth specified in comments(00230)
Elevation specified in comments(00240)
Inland wetlands: permanent stream
Stream order: sixth order stream
Stream order: seventh order stream
Natural features: riffles

References for breeding adult niche requirements: 001, 002, 004

Feeding Adult Niche Requirements

Dissolved oxygen: needs high O2 concentrations - saturated (euoxyphilous)
Ph: prefers ph above 7.0 (alkaliphilous)
Turbidity: moderate turbidity
Siltation: low
Nutrient concentrations: prefers moderate nutrient concentrations (mesotrophic)
prefers clean water habitats, tolerateS infrequent periods of low d.o. if ph and temp. unaltered (saproxenous)
Substrate specified in comments(00080)
Relation to substrate: occurs in substrate (penetrating)
Bottom type: mud or silt
Bottom type: sand
Bottom type: pebble
Bottom type: gravel
Bottom type: rubble
Stability of bottom: stable
Gradient specified in comments(00140)
Current velocity specified in comments(00150)
Water level: permanently flooded
Salinity: prefers salt concentrations less than 500 mg/l (0.5 ppt)(oligohalobous)
Water depth specified in comments(00230)
Elevation specified in comments(00240)
Inland wetlands: permanent stream
Stream order: sixth order stream
Stream order: seventh order stream
Stream order: eighth order stream
Natural features: riffles

References for feeding adult niche requirements: 001, 002, 004

Resting Adult Niche Requirements

Substrate specified in comments(00080)
Gradient specified in comments(00140)
Water depth specified in comments(00230)
Elevation specified in comments(00240)

References for resting adult niche requirements: 001, 002, 004

Niche Requirement Summary

Dissolved oxygen: needs high O2 concentrations - saturated (euoxyphilous)
PH: prefers ph about 7.0 (neutral)
Siltation specified in comments(00050)
Nutrient concentrations: prefers moderate nutrient concentrations (mesotrophic)
Inland wetlands: permanent stream
Natural features: riffles
Siltation: low
Bottom type: rubble
Water temperature specified in comments(00010)
prefers clean water habitats, tolerateS infrequent periods of low d.o. if ph and temp. unaltered (saproxenous)
Bottom type: mud or silt
Inland wetlands: swamp
Stream order: seventh order stream
Current velocity specified in comments(00150)
Water depth specified in comments(00230)
Elevation specified in comments(00240)
Stream order: sixth order stream
Ph: prefers ph above 7.0 (alkaliphilous)
Bottom type: sand
Turbidity: moderate turbidity
Turbidity: high turbidity
Bottom type: pebble
Water level: permanently flooded
Bottom type: gravel
Stability of bottom: stable
Gradient specified in comments(00140)
Stream order: eighth order stream
Substrate (not bottom type): animal substrate
Substrate specified in comments(00080)
Relation to substrate: occurs in substrate (penetrating)
Salinity: prefers salt concentrations less than 500 mg/l (0.5 ppt)(oligohalobous)
Host specified in comments(00680)

Comments for all niche requirement fields:
Code Comment
00010:Time from encystment to peak of excystment was 12-14 days at 25 deg. C *11*.
00050:Siltation affects juveniles more than adults *01*
00080:Found in substrates ranging from silt to cobble (rubble), usually in cobble-gravel *01,02,04*
00140:Are found where gradient is 1-3 ft/mi *01*.
00230:Found at water depths 1-10' *04*.
00240:Found at elevations 383-545' *01*.
00680:Need host during larval stage and for a short time after transforming from larva *01*. Hosts in MO included largemouth bass, spotted bass, smallmouth bass and walleye *11*.

Life History Information

Dispersion: clumped dispersion
Periodicity specified in comments(030)
Limiting factors specified in comments(034)
Dispersal specified in comments(037)
Origin in state: native
Seasonal distribution in state: all seasons
Closely associated plant or animal species specified in comments(003)
Foraging strategy: filtering
Foraging sites: water
Foraging height specified in comments(006)
Breeding season specified in comments(007)
Mating system specified in comments(008)
Duration of pair bond: no pair bond formed
Spawning site: flowing water
Development of young at birth/hatching specified in comments(020)
Parental care of young: no care

Comments about Life History:
Code Comment
003:Fish hosts include largemouth bass, spotted bass, smallmouth bass and walleye *11*.
006:Filter the water just above stream bottom *01*
007:Breed in spring, females gravid August or September to following spring *08*
008:Males release sperm into water, females pick up sperm while filtering *01,02*
020:Eggs are fertilized and develop to glochidia stage in gills of female, glochidia are released into water *01,02*
030:Most active in spring, summer, and fall *01*
034:Limited by availability of habitat and suitable host *01*
037:Dispersal depends on fish host *01*

References for life history: 001, 002, 008, 011

Management

Beneficial Management Practices:
Regulate harvest of species being described
Water - develop/maintain spawning/nesting facilities
Water - control sedimentation
Water - control pollution (thermal, physical, chemical)
Water - develop/maintain streamside vegetation
Water - stabilize streambanks
Water - exclude livestock from water
Water - restrict human disturbance
Agricultural - control erosion

Beneficial Management References: 001

Adverse Management Practices:
Water - application of herbicides
Water - application of pesticides
Water - application of insecticides
Water - application of fertilizer - organic
Water - application of fertilizer - inorganic
Water - dredging and filling
Water - navigational improvements (channelization, dams, locks)
Water - stream channelization
Water - gravel dredging in streams

Adverse Management References: 001, 012

Comments on Management: Protecting habitat is extremely important *01*

References for Management Comments: 001

References

Reference Code Citation
(001)Unpb Buchanan, A.C. Mo Dept. Of Conservation, 1110 S. College Ave., Columbia, Mo 65201. (573)-882-9880.
(002)Buchanan, A. C. 1980. Mussels (naiades) of the Meramec River Basin. Missouri Dept. of Conservation Aquatic Ser. No. 17. Jefferson City, MO. 76 pp.
(003)Morton, J. E. 1967. Molluscs (4th Ed). Hutchinson and Co., Ltd. London. 244 Pp.
(004)Unpb Grace, T.B. and A.C. Buchanan. 1981. Naiades (Mussels) Of The Lower Osage River, Tavern Creek, And Maries River, Missouri. Mo Dept Of Conservation, 1110 S. College Ave., Columbia, Mo 65201 (573-882-9880). 147 Pp.
(005)U.S. Dept. Of The Interior. 1980. Republication Of Lists Of Endangered And Threatened Species And Correction Of Technical Errors In Final Rules. U.S. Fws, Washington, D.C. Fed. Register 45(99): 33768-33781.
(006)The Wildlife Code of Missouri. Missouri Department of Conservation, P.O. Box 180, Jefferson City, MO 65102. 573-751-4115.
(007)Thom, R.H. and J.H. Wilson. 1980 The Natural Divisions Of Missouri. Trans. Mo Acad. Sci. 14:9-24.
(008)Ortmann, A.E. 1919. A Monograph Of The Naiades Of Pennsylvania, Part Iii. Systematic Account Of The Genera And Species. Memoirs Of The Carnegie Mus. 8:1-384.
(009)Rare And Endangered Species Checklist Of Missouri. 1994. Mo Dept. Of Conservation. Natural Heritage Database. 31 Pp.
(010)Missouri Natural Heritage Program. 2004. Missouri Species and Communities of Conservation Concern Checklist. Missouri Department Of Conservation. Jefferson City, Missouri. 47 Pp.
(011)Unpb Barnhart, M.C. 1977. Reproduction And Fish Hosts Of Unionid Species Of Concern. Report Submitted To Missouri Dept. Of Conservation Fish and Wildlife Research Center, 1110 S. College Ave., Columbia, Mo 65201-5204. 573-882-9880.
(012)Missouri Department Of Conservation. Best Management Practices: Pink Mucket. Mo Dept. Conservation. Jefferson City, Mo.
(013)Allen, W.R. 1914. The Food And Feeding Habits Of Freshwater Mussels. Biol. Bull. 27(3):127-139.
(014)Unpb Sternburg, J. MO Dept. of Conservation, P.O. Box 180, Jefferson City, MO 65102 (573-751-4115)
(015)Pflieger, W.L. 1989. Aquatic Community Classification System For Missouri. Mo Dept. Of Conservation. Aquatic Series No. 19. 70 Pp + Supplement.