MusselMania

©2019AISUnitcreatedbytheFlatheadLakeBiologicalStationandtheFlatheadLakers.FundedbytheMontanaDepartmentofNaturalResourcesandConservation,FLBS,andFlatheadLakers.

Name

WarmUp StudentWorksheet(1of5)

Watchthefollowingvideoandthenanswerthequestionbelow:http://www.viewpure.com/I0YTBj0WHkU?start=0&end=0

1.WhataretwoadaptationstheLampsilismusselshavethathelpthemsuccessfullyreproduceanddistributetheirlarvae?•

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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?

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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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