mike kaiser

Download Mike Kaiser

Post on 29-Mar-2016

214 views

Category:

Documents

1 download

Embed Size (px)

DESCRIPTION

Fisheries science, the role of science in fisheries management and policy decisions. From the workshop www.fishingintothefuture.co.uk

TRANSCRIPT

  • Fisheriesscience,theroleofscienceinsheriesmanagementandpolicydecisions

    MichelKaiser

    BangorUniversity

  • Whoisasheriesscien7st?

  • Howdoweminimisethe

    impactsofshingonseabedhabitat?

    Setup127marinereservesandeatfreerangeleBuce

    ofcourse

    Theanswerisobviousisntit?

    Thepolicyorques7on

    Anopinionaboutthepolicyorques7on

  • Howdoweminimisethe

    impactsofshingonseabedhabitat?

    Well,rstlyitdependsonyourobjec7vesyoumightreduceshingeortwhichwouldbenetstock

    statusandtheseabed,butyouneedtoconsiderthesocioeconomiceects.oryoumightusea

    technicalmeasuresuchasagearmodica7on..oryoumightuse

    MPAs,butyouneedtothinkabouttheeectsofdisplacedac7vityoryoumightusealloftheabove

    Wellactuallyabitmorecomplex

    Thepolicyorques7on

    Dierentpathstoachievethepolicygoaloranswer

    theques7on

  • Whatshouldascien7stdo?Answerspecicques7onsProvideindependentevidenceEvaluatedierentscenariosSuggestalterna7veapproaches

    Whatshouldntascien7stdo?ManipulatethedataBeselec7veintheiruseofevidenceIgnoredierentscenariosHaveanagenda

  • Allshgoneby2048

    Examplesofpoorprac7ceextrapola7ngbeyondthedata

    Notallscienceisgood.itvariesinqualitylikeeverythingelse

  • 00.2

    0.4

    0.6

    0.8

    1

    1.2

    1975 1980 1985 1990 1995 2000 2005 2010

    B/BM

    SY

    Unassessedstocks

    AssessedStocks

    Doessciencemakeadierence?statusofmajorshstocks

  • HowdowemakegoodscienceevenbeBerandllindatagaps?