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AAqquuaaccuullttuurree EEdduuccaattiioonn aanndd AApppplliieedd RReesseeaarrcchh AASS uu The Marine Institute’s ss postgraduate programs will QQ tt help you be part of the aa growing, challenging and ii exciting Canadian aquaculture industry. UUnn aa Our programs prepare graduates for management positions in fish and shellfish farm management, aquaculture environmental management, fish bb health technology, aquaculture extension biology, aquaculture teaching, AAll and aquaculture research and development in Canada and internationally. ee MI’s faculty and staff offer active applied research programs focusing on CC innovative aspects of fish and shellfish husbandry, health and nutrition, biotechnology, farm production, production technology evaluation and enhancement. UU The Marine Institute has freshwater and saltwater facilities available including recirculation rearing systems, quarantine systems, and the world's largest flume tank. These are complemented by analytical LL laboratories, seagoing vessels and oceanographic instruments for field work. Excellent collaborative partnerships exist with other agencies locally TT and nationally, providing access to a large network of expertise and facilities dedicated to sustainable aquaculture. UU For more details on aquaculture programs and applied research opportunities, visit our website, or contact: Chair, Aquaculture Programs RR Marine Institute of Memorial University of Newfoundland P.O. Box 4920, St. John’s, NL, Canada, A1C 5R3 Tel: (709) 778-0600, ext.609 Fax: (709) 778-0535 Toll free: 1-800-563-5799, ext. 609 EE [email protected] ISO 9001 Registered wwwwww..mmii..mmuunn..ccaa AquacultureCanada2004 AquacultureCanadaOM2004–ProceedingsoftheContributedPapersofthe21stAnnualMeetingoftheAquacultureAssociationof Canada,QuebecCity,QC,October17-20,2004. AquacultureCanadamo2004–Comptesrenduesdesarticlescontribuésàla21eréunionannuelledel’AssociationaquacoleduCa- nada,Quebec,QC,le17-20octobre2004. OMAquacultureCanadaisanOfficialMarkoftheAquacultureAssociationofCanadaandmaynotbeusedwithoutpermission. moAquacultureCanadaestunemarqueofficielledel'AssociationaquacoleduCanadaetnedoitpasêtreutiliséesansautorisation. AquacultureAssociationofCanadaSpecialPublicationNumber9,2005. PublicationSpécialedel’AssociationaquacoleduCanada,numéro9,2005. C.I.Hendry,editor C.I.Hendry,rédacteur ISBN 0-9694597-8-5 PrintedbyTranscontinentalPrinting,Moncton,NB ImpriméparTranscontinentalPrinting,Moncton,NB ©2005AquacultureAssociationofCanada ©2005L’AssociationaquacoleduCanada PrintedinCanada ImpriméauCanada Front cover: Logo designed by Ken Albrecht. Inside front cover: Photoscourtesy of Cynthia McKenzie and Natalie Hamil- ton-Gibson. 2 AACSpec.Publ.No.9(2005) AquacultureCanada2004 Aquaculture CanadaOM 2004 October17-20,2004/le17-20octobre2004 LeFairmontChâteauFrontenac,QuébecCity ProceedingsofContributedPapers/Comptesrenduesdesarticlescontribuées (Note:Allpapersaresuppliedwithbilingualabstracts. Titlesappearinthelanguagesinwhichtheyweresubmitted) President’sReport/RapportdelaPrésidente . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 DrSharonMcGladdery,AACPresident2003-2004 AquacultureCanadaOM2004Awards/Prixd'AquacultureCanadamo2004 . . . . . . . . . . . . . . . . . 8 StudentAffairs/AffairesÉtudiantes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 AC04Committees/Comitésd'AC04. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14 AAC2003-2004BoardofDirectors/Conseild'administration . . . . . . . . . . . . . . . . . . . . . . . 15 AC04PartnersandSponsors/PartenairesetCommanditairesd'AC04 . . . . . . . . . . . . . . . . . . 16 Calendar/Calendrier . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .143 Aqua-L . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .144 SalmonidAquaculture/Salmoniculture EffectofSizeandDietonSeawaterMortalityofTriploidBrookCharr(Salvelinusfontinalis) . . . . . . . . 17 RMBendezu-Lopez,NRLeFrançois,andSGLamarre PhytoplanktonEarlyWarningApproachesforSalmonFarmersinSouthwesternNewBrunswick . . . . . 20 BDChang,FHPage,JLMartin,GHarrison,EHorne,LEBurridge,MMLeGresley,ARHanke,PMcCurdy,andJASmith TemperaturePreferenceofTwoStrainsofBrookTrout(Salvelinusfontinalis) . . . . . . . . . . . . . . . 24 RobynO’KeefeandTillmannBenfey CharacteristicsofAlexandriumfundyenseBloomsthatAffectCagedSalmonintheBayofFundy . . . . . 27 FHPage,AHanke,JLMartin,MLeGresley,andBChang RearingOpportunitiesofaNorthernStrainofBrookCharr(Salvelinusfontinalis) . . . . . . . . . . . . . 31 PierrePelletier,LarsE.Hansen,andAndréDumas MarineFinfishAquaculture/CulturesdesPoissonsMarins GrowthPerformanceandSurvivalofAtlanticHalibut(Hippoglossushippoglossus)Grownin SubmergedNetPens . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .35 WHunttingHowellandMichaelDChambers IndirectFeminizationofAtlanticHalibut(Hippoglossushippoglossus):TheMechanismofSex DeterminationandProductionofFunctionalSex-ReversedFemales . . . . . . . . . . . . . . . . . . . 38 DJMartin-Robichaud,TJBenfey,CIHendry,HTvedt,andMReith ClamCulture/CulturedesBivalvesFouisseur Soft-ShellClam,Myaarenaria,MaricultureinMaine,USA:OpportunitiesandChallenges. . . . . . . . . 41 BrianFBeal BenthicCollectionofMyaarenaria:APromisingApproachforSpatSupplyinÎles-de-la-Madeleine (SouthernGulfofSt.Lawrence) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 LiseChevarieandBrunoMyrand AACSpec.Publ.No.9(2005) 3 AquacultureCanada2004 InfluencedeVariablesPhysiquesetBiologiquessurleTempsd’EnfouissementdelaMye Commune(Myaarenaria) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49 JuliePariseau,BrunoMyrand,GastonDesrosiers,LiseChevarie,etMichelGiguère MesuresdelaDispersiondeMyesCommunes(Myaarenaria)EnsemencéesdansleBarachois deLaMalbaie,Québec. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .53 BThomas,MGiguère,etSBrulotte MusselCulture/Mytiliculture Open-seaCultureofMussels(Mytilusedulis)inÎles-de-la-Madeleine:APromisingAvenue. . . . . . . . 56 FrançoisBourque,BrunoMyrand,andGuglielmoTita TheSizeRefugeagainstRockCrab(Cancerirroratus)PredationisnotTotallyReachedby Commercial-SizedMussels(Mytilusedulis) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60 BrunoMyrandandFrançoisBourque LaDépurationenVracetl’EntreposageHumidedelaMouleBleue(Mytilusspp.)enGaspésie,QC, Canada–delaDémonstrationExpérimentaleàl’ImplantationCommerciale,2002-2003 . . . . . . . . . 64 MarcelRoussy,Marie-HélèneDeschamps,FrançoiseTétreault,etFrancisCoulombe ComparativeRatesofByssalThreadProductionandCrawlingSpeedinHatchery-Produced MytilustrossulusandMytilusedulisunderVaryingSalinity,Temperature,andFeedingConditions . . . . 68 KSullivanandCCouturier ScallopCulture/CulturedesPétoncles ImprovingtheQualityofSeaScallop(Placopectenmagellanicus)SpatCollectionbyaMore AccurateDeterminationoftheImmersionPeriodofCollectorsinÎles-de-la-Madeleine,Québec,Canada . 71 CaroleCyr,GeorgesCliche,GastonDesrosiers,andBrunoMyrand IdentifyingCommerciallyViableSeaScallop(Placopectenmagellanicus)SpatSites . . . . . . . . . . . 75 Leslie-AnneDavidson,MoniqueNiles,andG.JayParsons AComparisonbetweenDifferentScallopSpatCollectorDesigns . . . . . . . . . . . . . . . . . . . . . 78 MMNiles,L-ADavidson,andRCaissie BilandesActivitésdeCaptageduPétoncleGéant(Placopectenmagellanicus)Réaliséesentre 1999et2004enGaspésie,Québec . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .81 BThomas,MGiguère,etSBrulotte AquacultureNutrition/NutritionenAquaculture OptimisationdelaProductiondeMicrocapsulesdePhytaseparSéchageparAtomisation . . . . . . . . 84 SBenchabane,GWVandenberg,etMSubirade EffectofDietaryLevelsofHerringMealonApparentProteinDigestibilitybyJuvenileHaddock, MelanogrammusaeglefinusL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88 Jeong-DaeKim,SantoshP.Lall,andSeanM.Tibbetts GrowthandSurvivalImprovementofSpottedWolffish(Anarhichasminor)duringFirst-Feeding: ANutritionalApproach . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91 ASavoie,NRLeFrançois,CCahu,andPUBlier EffectofDietaryLipidonPrevalenceofFattyLiverConditioninJuvenileHaddock, MelanogrammusaeglefinusL.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94 CarlaMWalbourneandSantoshPLall 4 AACSpec.Publ.No.9(2005) AquacultureCanada2004 AquaticAnimalHealth/SantédesAnimauxAquatiques TheEfficacyofOralImmunostimulantsinEnhancingResistanceagainstMicrosporidiosisin JuvenileAtlanticCod(GadusmorhuaL.). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .97 CrisSJenkinsandDuaneEBarker SimplifiedIllustratedSeaLiceIdentificationGuideforLepeophtheirussalmonisandCaligusclemensi inBritishColumbia,Canada. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .101 KevinGButterworth,JesseDRonquillo,andRScottMcKinley ProteomicIdentificationofAcutePhaseReactantsinPlasmaofRainbowTrout (Oncorhynchusmykiss). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104 SRussell,MAHayes,ESimko,andJSLumsden EfficacyofCrushedGarlicandLemonJuiceasBio-productTreatmentsforIchthyophthirius multifiliis(‘ich’)InfectionsamongJuvenileNileTilapia,Oreochromisniloticus . . . . . . . . . . . . . . 108 CKSokoandDEBarker StressEvaluationinCultivatedScallops,Placopectenmagellanicus,andOysters, Crassostreavirginica,usingLysosomalDestabilizationAssays . . . . . . . . . . . . . . . . . . . . . 111 SSynard,CCouturier,andJBurry AlgalCultivation/ProductiondesAlgues AComparisonofNaturalandArtificialSeawaterforAlgalGrowth. . . . . . . . . . . . . . . . . . . . . 114 CatherineEnright,Audrie-JoVink,andJenniferHarrison PotentialforFreezingandFreeze-DryingasMethodsforPreservingMicroalgalConcentratesin BivalveHatcheries . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .117 GEMacDonaldandCEEnright AquacultureEngineering/GénieAquacole ANewModelforPredictingtheExpansionofFluidizedBedBiofilters. . . . . . . . . . . . . . . . . . . 120 ZhijieMa,MichelCouturier,andYingZheng ConsiderationofTurbulenceinCalibrationofPlasterBlocksUsedforFlowMeasurement . . . . . . . . 124 DMunroeandRSMcKinley IntegratedMultitrophicAquaculture/AquacultureMulti-trophiqueIntégrée TheRoleofBlueMussel(Mytilusedulis),Kelp(Laminariasaccharina),andBiofoulingonthe DissolvedOxygenBudgetofIntegratedMulti-Trophic(Salmon-Mussel-Seaweed)Aquaculture . . . . . 127 JFPiercey,FHPage,BAMacDonald,andTChopin AquacultureRiskCommunications/LaCommunicationdesRisquesenAquaculture RiskCommunicationintheAquacultureSector:TheRoleoftheScientist. . . . . . . . . . . . . . . . . 131 GuyGilron,JosephineArchbold,SuzanneGoldacker,andRobWillis SocioeconomicsofAquaculture/Socio-économiedel'Aquaculture CanadaandVietNam:TwoViewsofMarineAquacultureandItsImportancetoOurCoastal CommunitiesandEconomies. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .135 LCHalfyard,MJAkester,SMChristensen,andDFezzardi OrganicandBeyondtheBox:SomePerspectivesonNicheMarketingAquaculture . . . . . . . . . . . 139 JamesAYoungandJamesFMuir AACSpec.Publ.No.9(2005) 5 President'sReport President’s Report The21stAnnualMeetingoftheAquacultureAssociationof Canada(AAC)markedthecloseofanexcitingandchallenging yearasPresident.HavinglittleknowledgeofwhatIwastruly agreeingtowhenIwasaskedtostandforthisaugustposition,I canhonestlyconfessthatitbroughtawholenewappreciationof theday-to-dayactivitiesofourAssociationandofthestalwart souls that keep the Association and our annual meetings on track.Despitehavingbeenamemberformanyyears, Ihada verynaïveconceptofwhatisrequiredtokeepAAChealthyand relevanttothedynamicissuesthatchallengeandpushourindus- tryasitcontinuestogrowandmature. AsIreturnto‘normal’lifewithintheAssociationandcometo- wardstheendofmytermontheBoardofDirectors,Iwouldlike toencourageallmembers(students,professors,industry,gov- ernment,andassociatedinterests)toseriouslyconsiderplaying amoreactiverollintheAAC.Boardmembershipcertainlytakes sporadictimeandeffort,butitalsoprovidesanexcellentoppor- tunitytoshareideaswithadiversityofexpertisespanningall realmsinterestedandinvolvedinCanadianAquaculturespan- ningmarine,freshwater,finfish,shellfish,andalgaeproduction. Thisbeingsaid,membershipintheAssociationandBoardac- wantto!),weneedtodevelopthewaystokeepthisinteresten- tivitiesalsoincreasesourexposuretothescopeofchallenges gaged,butinapositivemanner.Communityinvolvementinsit- that face aquaculture as it strives to develop in Canada. ingdecisions,developmentoflocalaswellasremotemarkets, Aquaculturehasfoughthardtogaintheleasesandsitesneeded amongothers,wereideaspresentedanddiscussedatAC04.I toproduceaffordablehigh-qualityfishandseafood.Thisfight wouldjustliketore-iteratethevalueofengagingcommunity hascertainlytakenitstollinthefaceofseeminglyinexhaustible support.Althoughitcanbeacostlyinvestmenteffort-wise,it criticism,challengesandregulatoryinertia.2004providedlittle payssignificantdividendswhenthecommunityemergestopro- respiteforthesocio-economiccasualtiesassociatedwiththese tectaquaculturefromunwarrantedattackby‘outsiders‘.Exam- challenges.Despitethis,however,progresscontinueswithnew plesofsuchpositiveinterventionexistincertainruralpartsof species, new government commitments dedicated to Canada,butthereremainsscopeforspread. aquaculture,andever-increasingmarketopportunities.Canadi- Your new AAC President, Dr. Thierry Chopin, brings per- ansloveproducing,eating,andmarketinghome-grownseafood. sonalenthusiasmandexperiencetothisforwardmomentum.In Fewpermanentlydiscardthispassioninthefaceofspurioussci- 2004 we actively sought more freshwater involvement in na- enceandanti-aquaculturecampaigning. tionalactivities–withresoundingsuccessandthankstotheAs- Our Association takes pride in its historic inclusion of all sociationdesAquaculteursduQuébecandEricGilbertofthe aquacultureintereststoprovideaforumforopenandtransparent AquacultureManagementDirectorateofFisheriesandOceans debateofissueschallengingaquaculturedevelopmentandsur- Canada,amongmanyothers-and2005islikelytoseemarine vival. Thisyears meeting wasnoexception withanexcellent plantsgainahigherprofileasanewandpromisingopportunity plenary presentationbyDr.JasonClay oftheWorldWildlife fortheCanadianentrepreneurialspirit. Fund.WhatstruckmeasIlistenedtohimwas,despitemany With sincere thanks to everyone who made my Presidency similaritiesbetweenterrestrialfarmingandaquaculture,thereis suchanenjoyableexperience,Ilookforwardtocontinuingtoac- afundamentaldifferencethatappearstofuelmuchoftheangst tivelysupportyourAssociationasitcontinuestoevolve.Don’t aimed at aquaculture. The public rarely feels ownership of a hesitate tojoinme–it’sanexcellent (andachievable!!) New farmer’sfieldorthewindblowingthroughit.Manydo,how- Year’sResolution… ever, feel a natural tie to the oceans and rivers that promotes SharonMcGladdery closeattentiontoalltheactivitiestheyseetakingplacetherein. AACPresident2003-2004 Sinceweareunlikely tolosethisinterest(andnorshouldwe 6 AACSpec.Publ.No.9(2005) AquacultureCanada2004 Rapport de la présidente La21eréunionannuelledel’AssociationaquacoleduCa- débatsouvertsettransparentssurlesenjeuxquicompromettent nada(AAC)amarquélafind’uneannéeexcitanteetsti- ledéveloppementetlasurviedel’aquaculture. Laréunionde mulanteentantqueprésidente.Jenesavaispasvraiment cetteannéen’apasfaitl’exceptiongrâceàlaprésentationenplé- cequim’attendaitquandonm’ademandéd’occupercenoble nièredeM.JasonClay,duFondsmondialpourlanature.Pen- poste,etjepeuxvousdirehonnêtementquemonexpériencem’a dantquejel’écoutais,quelquechosem’amarqué:malgréles permisdemieuxcomprendrelesactivitésquotidiennesdenotre nombreuses similitudes entre l’agriculture et l’aquaculture, il associationetdesmembresvaillantsquis’assurentquenotreas- sembleraitqu’unedifférencefondamentalesoitàl’originedes sociation et nos réunions annuelles restent sur la bonne voie. inquiétudesconcernantl’aquaculture.Lapopulationsesentra- Malgrélefaitquej’étaismembredel’Associationdepuisplu- rementtouchéeparlechampd’unfermieretleventquisouffle sieursannées,j’avaisuneperceptiontrèsnaïvedesélémentsné- surlui.UngrandnombredeCanadiensressententcependantun cessairespourmaintenirlasantédel’AACetveilleràcequ’elle attachementnaturelauxocéansetauxrivièresetsepréoccupent tiennecomptedesenjeuxdynamiquesauxquelsnotreindustrie ainsidetouteslesactivitésquiysontmenées.Puisquecetintérêt estconfrontéeàmesurequ’elleprogresseetsestabilise. nesedissiperasûrementpas(etnousnevoulonspasqu’ilsedis- Monmandatàtitredemembreduconseild’administrationtire sipe!),nousdevonsélaborerdesmanièresdelemaintenir,mais àsafin,etjemeprépareàreprendreunrôle«normal»auseinde d’unpointdevuepositif.Lamiseàcontributiondescollectivités l’Association. Je voudrais encourager tous les membres (étu- danslesdécisionssurlessitesetledéveloppementdemarchés diants,professeurs,membresdel’industrie,représentantsgou- locauxetéloignés,entreautres,ontétéproposéslorsdelaconfé- vernementauxetauxpartiesintéressées)àenvisagersérieuse- rence Aquaculture Canada 2004 et ont fait l’objet de discus- mentdejouerunrôleplusactifdansl’AAC.Letempsetl’effort sions.Jetiensàsoulignerl’importancedusoutiencommunau- qu’exigelaparticipationauconseild’administrationsontspora- taire. Bien qu’il faille parfois déployer des efforts immenses diques,maisils’agitd’uneexcellenteoccasiond’échangerdes pour obtenir ce soutien, les retombées sont considérables idéesavectouteunegammedespécialistesdanstouslesdomai- lorsquelacollectivitésemanifestepourdéfendrel’aquaculture nesliésàl’aquacultureauCanada,notammentlaproductionde contredesattaquesinjustifiées.Detellesinterventionspositives poisson,demollusquesetcrustacésetd’algueseneauxmarines ontdéjàeulieudanscertainesrégionsruralesduCanada,maisil etdouces. faudraitlesétendreàd’autresrégions. Cecidit,laparticipationauxactivitésdel’Associationetdu Votrenouveauprésidentdel’AAC,M.ThierryChopin,con- conseild’administrationnoussensibiliseégalementdavantageà tribuerasonenthousiasmeetsonexpérienceàcetavancement. l’étenduedesdéfisquedoitreleverlesecteuraquacoleàmesure En2004,nousavonstravailléactivementenvued’apporterun qu’ilsedéveloppeauCanada.Lesecteuraquacoleadéployéde pointdevueaxédavantagesurleseauxdoucesauxactivitésna- grandseffortspourobtenirlesbauxetlessitesnécessairesen tionales.Nousavonsremportéunfrancsuccèsgrâceàl’Asso- vuedeproduiredespoissonsetdesfruitsdemerdegrandequali- ciationdesaquaculteursduQuébecetàEricGilbert,delaDirec- téetabordables.Cettelutteacertainementétédifficileenraison tiongénéraledel’aquaculturedePêchesetOcéansCanada,par- descritiquesincessantes,desdéfisetdumanqued’avancement mibiend’autres,etl’année2005verrasûrementlesplantesma- delaréglementation.L’année2004aaccordépeuderépitence rinesprendreuneplaceimportanteentantquenouvelleperspec- quiatraitauxrépercussionssocioéconomiquesassociéesàces tiveprometteusepourlesentrepreneurscanadiens. défis. Toutefois, malgré cela, nous continuons de réaliser des Jevoudraisremerciersincèrementtousceuxetcellesquiont progrèsrelativementàdenouvellesespèces,àdenouveauxen- faitdemonmandatàtitredeprésidenteuneexpérienceextraor- gagementsgouvernementauxvisantl’aquacultureetauxpers- dinaire,etjemeréjouisàl’idéedecontinuerd’appuyeractive- pectivesdumarchédeplusenplusnombreuses.LesCanadiens mentnotreassociationàmesurequ’elleévoluera.N’hésitezpas aimentproduire, mangeretcommercialiser desproduitsdela àvousjoindreàmoi–c’estuneexcellenterésolutionduNouvel merbiendecheznous.Ilsnesontpasnombreuxàlaissertomber An(quenouspourronstenirdesurcroît!!)… cettepassionàcausededonnéesscientifiquestrompeusesetde campagnesanti-aquacoles. SharonMcGladdery L’Associationestfièred’avoirregroupépourlapremièrefois AACPrésidente2003-2004 touslesintérêtsaquacolesafindeservirdetribuneoùtenirdes AACSpec.Publ.No.9(2005) 7 AC04Awards 2004 Honourary Lifetime Achievement Award OvilaDaigle OvilaDaiglegrewupinPointe-Sapinasmallcoastalcom- munityinNewBrunswick.HehasadegreeinForestry fromUNBwherehelearnedhistradeoflandsurveyor. HestartedhiscareerinNewcastleN.-B.in1959workingwith theprovinceofNB,surveyingforestlotstomarktheirbound- ariesandassesswoodproduction.Hewentontoworkwithwhat wasthentheministerofEnvironmentandFisheriesattheEllers- lieFisheriesResearchStationinPEI.Ovila’sskillsatsurveying wereextensivelyusedtodeveloptheshellfishleasingprogram andpolicyoftheday. Mr.Daigleandhisteamwereresponsibletodefineandsurvey the new leases, assess their potential, produce the maps and maintainadatabaseforthehundredsofsitesaroundtheMari- timeProvinces.BeforethedaysofGPSandGIS,thistypeof valuableinensuringthesuccessofthisprogram.Mostoysters workrequiredluggingheavysurveyingequipmentthroughthe cultivatedorharvestedtoday(exceptinBrasd’OrLake)inthe woods,long hoursoftriangulation onwater followed by ani- MaritimeProvincesaredirectdescendantofthisseedstock.In mated discussions on wharves about oyster culture. Anyone total,11000barrelsof3-inchoystersand272barrelsof1-inch whoknowsOvilaisboundtoshareisenthusiasmforshellfish oysterswerere-introducedinourwatersbyMr.Daigleandhis cultureandtoappreciatehiskindnature. teambetween1960and1970. PartofhisworkattheEllersliestationwastocarryoutexten- Followingthis,Mr.DaiglebecamemanageroftheShellfish sionprogramstopromoteoysterculture.Becauseeachnewsite LeasingProgramforFisheriesandOceanswherehewasinstru- hadtobeindividuallysurveyed,Mr.Daigledevelopedaninti- mentalinsettinguptheburgeoningmusselaquacultureindus- mateknowledgeofeachbay.Tothisday,peoplestillcallhimto try,especiallyinPEI.HeretiredfromDFOin1992. findinformationaboutspecificsites. Mr. Daigle is still very active in the family shellfish FollowingtheonsetoftheMalpequediseaseinthe50sand aquacultureenterprise,AquacultureacadienneLtéeownedand 60s, Mr. Daigle was called upon to re-stock all bays in New operatedbyhissonMauriceDaiglesince1982. Brunswick,NovaScotiaandPEIwithseedsresistanttothedis- TheshellfishaquacultureindustryofthethreeMaritimeprov- ease. Again, Ovila’s intimate knowledge of each bay proved incesisindebtedtoMr.Daigleforthislifetimecontribution. SharonMcGladdery,AACPresident,presentstheHonourary LifetimeAchievementAwardtoOvilaDaigle. SharonMcGladdery,Présidentedel'AAC,présentelePrix d’excellencepourl’ensembledesréalisationsàOvilaDaigle. 8 AACSpec.Publ.No.9(2005)

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Marine Institute of Memorial University of Newfoundland. P.O. Box 4920, St multifiliis('ich') Infections among Juvenile Nile Tilapia, Oreochromis niloticus 108 .. en 1992, la médaille Thomas W. Eadie décernée par la Société royale du .. United-States Trout Farmers Association.
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