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MusselMania
©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.
Name
WarmUp StudentWorksheet(1of5)
Watchthefollowingvideoandthenanswerthequestionbelow:http://www.viewpure.com/I0YTBj0WHkU?start=0&end=0
1.WhataretwoadaptationstheLampsilismusselshavethathelpthemsuccessfullyreproduceanddistributetheirlarvae?•
•
StationA:FreshwaterMusselAnatomyandPhysiology
2.Usethemusselanatomydiagram,coloredpencils,andkey(below)tolabelandcolorthefollowing:¨ Posterioradductormuscle(lightgreen)¨ Anterioradductormuscle(lightgreen)¨ Excurrentsiphon(redorange)¨ Incurrentsiphon(violet)¨ Digestivegland(grey)¨ Gills(pink)
¨ Kidney(white)¨ Foot(orange)¨ Byssalthreads(darkgreen)¨ Mantle(blue) ¨ Gonad(yellow)¨ Labialpalp(skyblue)
¨ Mouth(skyblue)¨ Stomach(skyblue)¨ Intestine(skyblue)¨ Anus(skyblue)¨ Ligament(brown)¨ Heart(red)
MusselMania
©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.
StationA(continued) StudentWorksheet(2of5)
3.Next,usetheprovidedMusselAnatomyCardstomatchthestructurestothecorrect
functions. Askyourinstructortocheckandmakesureyourcardsarecorrectlymatchedbeforeyoumoveon!Examinethezebraorquaggamusselshellsizedisplay.4.Atwhatsizedozebraandquaggamusselsbecomeadultsandbegintoreproduce? mm
Examinethezebravs.quaggavs.Asianclamdisplay. 5.Whatdothethreeinvasivemolluskshaveincommon?
Learnhowtorecognizetheseinvaders!6.Whataretwodifferencesbetweenthezebraandquaggamusselshells?
•
•
Usetherulerbelowtomeasureoneofthe3-Dquaggamusselshells.Shelllength= mm
ThepicturetotheleftshowstheactualsizeofanadultnativeWesternpearlshellmussel.Howmuchbiggeristhenativeshell? mm
MusselMania
©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.
NativeFreshwaterMussels InvasiveZebra&QuaggaMussels
StationB:Nativevs.InvasiveMusselLifeCycles StudentWorksheet(3of5)
7.UsetheNativeandInvasiveMusselLifeCycleposterstoentertheitemsbelowintotheVenndiagram.• Needafishhost• Produceplanktonicveligerlarvae• Produceparasiticglochidialarvae• Useafoottostickto&moveonasubstrate• Usebyssalthreads• Typicallylive3-9years• Typicallylive20-40years• Juvenilesarebenthic• Liveinthesediment
• Liveonsurfaces• Externalfertilizationoccursinthewater• Fertilizationoccursinsideofthefemale• Filterfeeder• Bivalve• Undergometamorphosis• Eatplanktonandorganicdetritus• Useamarsupiumorbroodpouch• Produce40,000-1,000,000eggsperyear
MusselMania
©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.
StationC:NativeandIntroducedMusselsofMontana StudentWorksheet(4of5)
8.UsetheprovidedMusselsofMontanaPostertocompletethefollowingtable:TypeofMussel
NativeorIntroduced
Length(in.)
PrimaryHabitat HostFishnative(n)Introduced(i)
KeyWatershedsinMontana
GiantFloater
Preferpoolandsidechannelareasofsmalltolargerwarmprairieriverswithamud,sand,orgravelsubstrate.
Prefersidecurrentareas,runs,andpoolsofmediumtolargecooltowarmriverswithpebble,gravel,sandorsiltsubstrates.
Missouri,Milk,Yellowstone,andLittleMissouriRiverdrainages.
NativeSpeciesofConcern
W.CutthroatTrout(n)SteelheadSalmon(n)ChinookSalmon(n)RainbowTrout(i)BrookTrout(i)
BlackSandshell
5-6in. Mediumtolargewarmprairieriversinrifflesorrunswithpebble,gravel,orfirmsandsubstrates.
Introduced 4-6in.
Sauger(n)Carp(i)GreenSunfish(i)LargemouthBass(i)Walleye(i)
MissouriBasin:fromLowerMilkRiverupstreamandBeaverCreek
Mapleleaf
3-5in.
ChannelCatfish(n)YellowBullhead(i)BlackBullhead(i)
9.WhichmusselwouldbefoundinNorthwestMontana? WhydoyouthinkthesemusselswouldnotbefoundinEasternMontana?10.ProvideonereasonwhyyouthinktheWesternPearlshellpopulationsaredecliningandatrisk?11.Sincethezebraandquaggamusselscanattachtosurfacesinbothfreshwaterlakesandrivers,how
couldthenativemusselsbeimpactedbyaninfestation?
MusselMania
©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.
WrapUp StudentWorksheet(5of5)
AFTERYOUHAVEFINISHEDALLTHREEACTIVITYSTATIONS…SHOWMEWHATYOUKNOW!J12.UseSPECIFICEVIDENCEtocreateanargumentsupportingthefollowingstatement:
Zebraandquaggamusselswouldbemoresuccessfulatsurvival,reproduction,anddispersalthannativefreshwatermusselsinMontana.
Youmaywrite/draw/describeyourresponseintheboxbelow.
MusselMania
©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.
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