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PAGE11MAZINAx19IGANWINTER20122013GREATLAKESGoodnewsforlaketroutrecoveryGLIFWCassessmentnetshaulinarecordnumberSilverCityMich.x14AsGichigamiLakeSuperiorbeginstocooldownnamekoslaketroutseekoutrockyreefstospawn.ReefspeppertheshorelineofMichiganx19sUp-perPeninsulaandfromUnionBayreefjustoutsideofSilverCitytoBigBayReefnearMarquettetheGLIFWCcrewofMizhakwadplythewaterstosetnetswhichprovideanannualassessmentforlaketroutspawningstocks.Theassessmentidentifiesdiscretestocksanddetermineslaketroutdistributionrelativeabundanceandbiologicalcharacteristicsinthe1842TreatycededareawithinMichiganwatersofLakeSuperior.Thesewatersareimportanttotheinter-tribalcommer-cialfisherywhichprovidesabout40partandfulltimejobstotribalmembers.Adikameglakewhitefisharetheprimaryfishsoughtinthefisheryhoweverlaketroutarelikewiseimportanttothefishery.Laketroutprovideahigh-endmealatlocalrestaurantsandaresoldasasmokedfishproduct.Ecologicallylaketroutareimportantx14theyareakeypredatorontheinvasivespeciesrainbowsmeltandarethekeypreyoftheinvasivesealamprey.Withoutlaketroutsmeltnumberswouldincreaseandsealampreywouldfindotherfishtopreyupon.Bothwouldbebadforwhitefishassmeltareknowntopreyonyoungwhitefishandsealampreywillswitchtowhitefishaspreyintheabsenceoflaketrout.AtUnionBayreefnearSilverCityMichiganonthewesternendofMichiganx19sUpperPeninsulathecrewofMizhakwadhandledarecord586laketroutofwhich495weretaggedandreleasedduringtheOctober15to182012assessment.Thisisgoodnews.WatersadjacenttoUnionBayreefwerestockedwith1.9millionlaketroutbetween1965and1995inanefforttorehabilitatelaketroutinLakeSuperior.In1988thefirstyearGLIFWCassessedthestockatUnionBay135ofthe336laketrouthandledwerehatcheryfishin2012only3of586werehatcheryfishx14indicatingthatwildlaketrouthavereturnedinabundancetoUnionBayreefSince1985GLIFWCanditsmembertribeshaveworkedcooperativelywiththeStateofMichigantoassessthelaketroutstockandlimitmortalitybysettinglaketroutharvestquotasfortheinter-tribalfisheryinMichiganwatersofLakeSuperior.Furthermonitoringandassessmentandcontinuedcooperativemanagementshouldensurenamekosremainsustainableintothefutureforgenerationsoffisherstocome.OdanahWis.x14ThetrendispositivefornamelakesturgeonnearthemouthoftheBadRiver.Relativeabundancewhichisthenumberofnamecaptureddividedbytheamountofnetsethastrendedinapositivedirectionsince1995seegraph.DuringthistimeGreatLakesTechni-cianMikePlucinskihasledtheeffortstoassessnamebysettingasabgillnetsinGichigamiLakeSuperiornearthemouthoftheBadRiver.Thestudywasinitiatedin1994inanticipationoftheLakeSuperiorTechni-calCommitteex19slakesturgeonrehabilitationplanwhichdirectsagenciesx1ctocollectinformationonthebiologicalcharacteris-ticsoflakesturgeoninanefforttodevelopworkablemanagementstrategies.x1dhttpwww.glfc.orgpubsSpecialPubs2003_02.pdf.TheworkisdoneincooperationwiththeBadRiverNaturalResourcesDepart-mentandtheAshlandFisheryResourcesOfficeandfocusesonstudyingthebiologyanddistributionofnameinandaroundtheBadRiverReservationx19sboundarywithLakeSuperior.Plucinskix19screwscapturedtaggedandreleased476nameoffthemouthoftheBadRiverduringthesummerassess-mentswhichrunfromlate-Junetoearly-September.CapturednamearescannedforpassiveinternaltransponderPITtagswhicharesmallglasscylindersinsertedintofishpriortorelease.ThosewithoutaPITtagreceivedonecourtesyoftheGLIFWCstaffmembers.InadditiontothePITtageachfishgetsanindividuallynumberedFloytag.Thetagsindividuallyidentifyafishsothatitsmovementandgrowthcanbetrackedovertime.FishtaggedbyGLIFWCstaffhavebeenrecapturedduringassessmentnet-tingnearthemouthoftheBadRiverbyWisconsinDNRnetssetforlakesturgeoninChequamegonBayneartheAshlandbreakwallandforlaketroutoffthemouthoftheBadRiver.TaggednamehavealsobeencaughtbyfishersfishingfromMarblePointfivemileseastoftheBadRivermouthtoLaPointeWisconsinonMadelineIslandtoHoughtonPointinChequamegonBay.In2010afishtaggedasajuvenilewasrecapturedduringthespringspawningrunforthefirsttimesincethesurveysbegan.Namedonotspawnforthefirsttimeuntiltheyarebetween7and14yearsoldformalesandfemalesrespectively.Fishcapturedduringthesummersurveysaregenerallylessthansevenyearsold.ThecrewofMizhakwadclockwisefrombottomleft.DaveParisienboxesthenetSamQuagonpreparestorecorddataMikePlucinskicaptainstheboatandEdLeosoawaitstherstsh.photobyS.BenMichaelsByBillMattesGLIFWCGreatLakesBiologistKeepingtrackofnamelakesturgeonPopulationgoingupnearBadRiverRelativeabundancesolidbarsandtrendlinefornamesampledoffthemouthoftheBadRiverWisconsinbyGLIFWCcrewsduring1995-2012.EdLeosoremovesnamekostobetaggedandreleasedatBuffaloReefnearGayMichigan.photobyS.BenMichaelsJessicaRaikesNorthlandCollegeinternremovesajuvenilenamefromagillnetsetoffthemouthoftheBadRiver.photobyMikePlucinskiByBillMattesGLIFWCGreatLakesBiologistRelativeAbundance