Recreational Fisheries Objectives and Management (Western Australia) - PDF

Recreationalsheries: objectivesandmanageme Lecturer:MattNavarro Outline Whatarerecreationalsheries? WesternAustraliasrecreationalsheries Whataretheobjectivesofrecreationalshe Whatarethemanagementlevers? WestCoastDemersalScaleshshery Afewcasestudies Whatarerecreationalsherie...

Recreationalsheries: objectivesandmanageme Lecturer:MattNavarro Outline Whatarerecreationalsheries? WesternAustraliasrecreationalsheries Whataretheobjectivesofrecreationalshe Whatarethemanagementlevers? WestCoastDemersalScaleshshery Afewcasestudies Whatarerecreationalsheries? Ocialdenition: Theshingofaquaticanimalsthatdonotconstitutetheindiv primaryresourcetomeetbasicnutritionalneeds,andarenot soldorotherwisetradedonexport,domestic,orblackmarkets Mydenition: Fishingforfun,enjoyment,sport,socialconnectionandmaybetoca ashtoeat Wheredorecreationalsheriesoccur? Dirkwillcovermoreontheglobalextent recreationalfisheries Anestimatedmillion 02 peoplerecreationallysh Therearetimes 5 morerecreationalshersthancommercialshers WesternAustraliasrecreationalsheries recreational 0 , 26 shers~2( )%5 billion 4.2$ inexpenditures All ( ofAustraliascommercialsh =million 734$ GVP) WesternAustraliasrecreationalsheries Bi-annualphonediary ~3shers 0, Boatrampsurveys~30, shers Boatrampcameras Someofthefuntopicsweexplore Sharkdepredation Mitchelletal.2018 Someofthefuntopicsweexplore Sharkdepredation Localiseddepletion Navarroetal.20 Someofthefuntopicsweexplore Navarroetal.201 Someofthefuntopicsweexplore Sharkdepredation Localiseddepletion No-takemarinereserves Navarroetal.2018 Objectivesofrecsheries Commercialshingobjectives: MSY Annual yield/catch on ( plates) Extinction Fishbiomassin ( theocean) B0 Objectivesofrecsheries Butarethesesensiblefor recreationalsheries? Commercialshingobjectives: MEY Revenue Renue/ $ cost Profit $ Cost Fishingeort Objectivesofrecsheries ReasonspeoplegoshingAustralian - nationalsurvey Onlypartlyabout catchingsh Moreabout experiences HenryandLyle(203) Objectivesofrecsheries Whatgoesintoagoodshingexperience? Thingsrelatedtofishstocks: Catchratesoflargedesirablespecies Variety Thingsrelatedtoinfrastructure: Boatrampsandfacilities Thingsoutsideofmanagementcontrol: Weather Whoyoubring Yourskilllevel Takehomepoints: 1. Theobjectivesofrecreationalfisheriesarenotthesameasforcommercialfisherie 2. Ingeneral,moreaboutfishingexperienceswithavarietyofcontributingfactors Managementlevers Recreationalsheriesaremanageddierentlytocommercials Catchquota Baglimits Eortquota Sizelimits Hardconstraintsonhow Seasonalclosures Nohardlimitsonhowmuch mucheachshercan apersonisallowedto Wheninterestinfishing sh/catch sh/catchinayear increasesfishingpressurec increasebeyondsustainabl Takehomepoints: WAsrecshingrules limits 3. Recreationalfisheriestendtobemanagedusingsoftregulationsthatdon’tcapcat 4. Whenfishingparticipationincreasesthereisriskofoverfishing WestCoastDemersalScaleshshery WestCoastDemersalScaleshshery 207 WestCoastDemersalScaleshshery 207 209 WestCoastDemersalScaleshshery 207 209 WestCoastDemersalScaleshshery 207 209 Twoyearsago Proposedoptions Casestudy1 Whatgoesintoagoodshingexperience? Thingsrelatedtofishstocks: Catchratesoflargedesirablespecies Variety Thingsrelatedtoinfrastructure: Boatrampsandfacilities Thingsoutsideofmanagementcontrol: Weather Whoyoubring Yourskilllevel Howtoquantifytheimportanceofthesefactors? Casestudy1 Lookatbehaviourrevealed ( preference) Peopleclearlylike thiscafefora reason Casestudy1 Lookatbehaviourrevealed ( preference) Havingaboatramp nearbyismore importantthan catchingoneextraf Casestudy1 Lookatbehaviourrevealed ( preference) Siteattributesare independentvariables Choiceisdependent variable Casestudy1 Casestudy1 Casestudy1 Coefficientstellushow importantavariableis Ratiostellusrelative importance Takehomepoints: 5. Wecanstudyfishersbehaviourtounderstandwhatisimportantinafishingtrip 6. InWAaccess(minimaltravelcost)catch , andbeingshelteredareallimportant Casestudy2 Measuringpreferencesformanagementmixstated ( preference) Soft limits Hard limits Casestudy2 Measuringpreferencesformanagementmix Fishers’disliketheideaof tags Fishers’dislikeremoving sizelimits Prefertoseelonger closures Takehomepoints: 7. Choiceexperimentsallowustomeasurepreferencesfordifferentmanagementarrange 8. Fishers’preferredlongerseasonalclosuresanddislikedhardlimitslikeatagsyst Takehomepoints Takehomepoints: 1. Theobjectivesofrecreationalfisheriesarenotthesameasforcommercialfisherie 2. Ingeneral,moreaboutfishingexperienceswithavarietyofcontributingfactors 3. Recreationalfisheriestendtobemanagedusingsoftregulationsthatdon’tcapcat 4. Whenfishingparticipationincreasesthereisriskofoverfishing 5. Wecanstudyfishersbehaviourtounderstandwhatisimportantinafishingtrip 6. InWAaccess(minimaltravelcost)catch , andbeingshelteredareallimportant 7. Choiceexperimentsallowustomeasurepreferencesfordifferentmanagementarrange 8. Fishers’preferredlongerseasonalclosuresanddislikedhardlimitslikeatagsyst References Whypeoplegoshing HenryG.W.andLyleJ.M.National.)30 2( recreationalandindigenousshingsurvey.Final ReportforFRDCProjectNo.Australian.851/9 GovernmentDepartmentofAgriculture, FisheriesandForestry,Canberra,Australia. Choiceexperiments: SaundersC.Assessing.)02 ( RecreationalAnglerPreferencesforManagementofTheWest CoastDemersalFisheryusingaChoiceExperiment. RandomUtilityModels: NavarroM.Recreational.)9102( shersandno-takemarinereserves:attitudes,beliefsand welfareimpacts.[Papersand 2 ] 3 Otherinterestingpapers: ArlinghausR.Abbott , J.K.Fenichel , E.P.etal.Opinion:.)9102( Governingtherecreational dimensionofglobalsheries,ProceedingsoftheNationalAcademyofSciencesofthe UnitedStatesofAmerica.312590,6 JohnstonF.D.Arlinghaus , R.andDieckmannU.Fish.)3102( lifehistory,anglerbehaviourand optimalmanagementofrecreationalsheries,Fishandsheries.9754,1 Referencescontd. Otherreferences: FAOFood ( andAgriculturalOrganisationoftheUnitedNations)Technical.)210 ( Guidelines forResponsibleFisheries:RecreationalFisheries.FoodandAgriculturalOrganisationofthe UnitedNations,Rome. MitchellJ.D.McLean , D.L.Collin , S.P.Taylor , S.Jackson , G.Fisher , R.andLangloisT.J..)8102( QuantifyingsharkdepredationinarecreationalsheryintheNingalooMarineParkand ExmouthGulf,WesternAustralia,Marineecologyprogressseries.7514,8 NavarroM.Hailu , A.Langlois , T.Ryan , K.L.andKragtM.E.Determining.)02 ( spatial patternsinrecreationalcatchdata:acomparisonofgeneralizedadditivemixedmodelsand boostedregressiontrees,ICESjournalofmarinescience.5261,7 NavarroM.Kragt , M.E.Hailu , A.andLangloisT.J.Recreational.)8102( sherssupportfor no-takemarinereservesishighandincreaseswithreserveage,MarinePolicy.254,69