Missouri Department of Conservation

Taxonomy

Common Name: MUCKET, PINK

Phylum: MOLLUSCA

Class: BIVALVIA

Order: UNIONOIDA

Family: UNIONIDAE

Genus: LAMPSILIS

Species: ABRUPTA

Taxonomic Authority: (HILDRETH)

Taxonomy References: 016 , 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 Occurance

County Occurence
Known Likely Unknown Not Likely Historic Extirpated
BUTLER CAMDEN ADAIR
CEDAR CAPE GIRARDEAU ANDREW
COLE DALLAS ATCHISON
CRAWFORD DUNKLIN AUDRAIN
FRANKLIN GRUNDY BARRY
GASCONADE HENRY BARTON
JEFFERSON HICKORY BATES
MARIES LACLEDE BENTON
MILLER MADISON BOLLINGER
OSAGE MISSISSIPPI BOONE
RIPLEY NEW MADRID BUCHANAN
ST. CLAIR PEMISCOT CALDWELL
ST. LOUIS PERRY CALLAWAY
WAYNE PHELPS CARROLL
SCOTT CARTER
STE. GENEVIEVE CASS
CHARITON
CHRISTIAN
CLARK
CLAY
CLINTON
COOPER
DADE
DAVIESS
DEKALB
DENT
DOUGLAS
GENTRY
GREENE
HARRISON
HOLT
HOWARD
HOWELL
IRON
JACKSON
JASPER
JOHNSON
KNOX
LAFAYETTE
LAWRENCE
LEWIS
LINCOLN
LINN
LIVINGSTON
MACON
MARION
MCDONALD
MERCER
MONITEAU
MONROE
MONTGOMERY
MORGAN
NEWTON
NODAWAY
OREGON
OZARK
PETTIS
PIKE
PLATTE
POLK
PULASKI
PUTNAM
RALLS
RANDOLPH
RAY
REYNOLDS
SALINE
SCHUYLER
SCOTLAND
SHANNON
SHELBY
ST. CHARLES
ST. FRANCOIS
STODDARD
STONE
SULLIVAN
TANEY
TEXAS
VERNON
WARREN
WASHINGTON
WEBSTER
WORTH
WRIGHT

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

Comments: ""

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

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: 001

Juvenile Food Habits

Other food habits; Not Specified
Other Microorganisms; Not Specified

Comments for Juvenile Food Habits:
"Parasitic, absorb nutrients from host *01*."

References Juvenile Food Habits 001

Adult Food Habits

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

Comments for Adult Food Habits:
""

References Adult Food Habits 001 , 013

Niche Requirements

Egg Niche Requirements

References for egg niches 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

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 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 feeding 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

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 resting adult niche requirements: 001 , 002 , 004

Niche Requirement Summary

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

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*

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 Managment 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.
016 Freshwater Mollusk Conservation Society (FMCS). 2021. The 2021 checklist of freshwater mussels. https://molluskconservation.org/Library/Committees/Names/Appendix_1_Bivalves_Revised_Names_List_20210825.pdf.