Abstract:Changesinfishharvestarenotonlyimpactedbyfishing,butalsoinfluencedbyclimatevariability.Basedondataofhairtailcatchesbetween1956and2006intheYellowSeaandBohaiSea,China,theresponsesofcatchestofishingandclimatefactorswereanalyzed.Thecatchtimeseriescanbecompartmentalizedintoaninter-annualtrendandvariations.Theinter-annualtrendwasfishingefforts.Thiswassuggestedbyhighlysignificantregressionofhairtailcatchestofishingeffort.Afterthecatchtrendwasremoved,therewere<0.02)oftheresidualvariationsincatchestowinterwindspeedintheYellowSea,summerwindspeedintheEastChinaSea,andannualprecipitationinYellowRiverValleyandthecoastalregionoftheYellowSeaandBohaiSea,whereastheseasurfacetemperatureandsummerwindspeedintheYellowSea,aswellassummerandwinterwindspeedsintheBohaiSea.Thelinkagesuggeststhattheclimatefactorsgovernthehairtailcatchvariations.ItwasinferredthatrunoffinputnutrientstotheYellowSeaandBohaiSea,whilemonsoonscontrolledthetransportanddistributionofthenutrients,andtheseprocessescanhaveimpactsontheprimaryproductivity.Changesinwatertemperaturecouldalsodirectlyaffectthegrowth,feeding,spawning,andmigrationofthefish,andthus,influencethefishpopulationsize.Thehairtailcatchtimeseriescanbejointlyfittedbyfishingeffortandclimaticfactors(,climatefactorscansignificantlyinfluencethehairtailcatches.Inthecontextofglobalwarming,itwasprojectedthatthefutureclimatechangeswouldleadtoreductioninhairtailproductionintheYellowSeaandBohaiSea,andthehairtailcatchvariationswouldbecomeevengreater.
