摘要
ThreespeciesofspongesandatunicatewerecollectedfromObhurcreekofJeddahcoastforthisbioactivitystudy.Inordertoassesstheantifoulingefficacyofselectedmarineorganisms,methanolicextractsoftheseorganismsweretestedagainstdifferentfoulingbacterialformsandII-instarstageofthebarnacle,Balanusamphitrite.Antibiosis,bioactivityandfollowedbymultivariateanalyseswerecarriedouttochecktheefficacyofantifoulingeffectoftheselectedmarineorganisms.PrincipalcomponentanalysisrevealedtheexemplaryantifoulingefficacyofthespongeextractsofStylissasp.observedfollowedbyHyrtiossp.againstbacterialformsinthelaboratorystudy.De-trendedcorrespondenceanalysisconfirmedthatthecontributionofantifoulingefficacyoftheselectedspongeextractswasobservedtobemoretowardsBacillussp.,Vibriosp.andAlteromonassp.Moreover,theefficacyofHyrtiossp.extract(20.430μgmL-1)followedbyStylissasp.(30.945μgmL-1)showedhigheragainstbarnacleinstarcomparedwithotherextractsinthebioactivityassay.Bray-Curtisclusteranalysisunderpairedlinkagecategorizedallthespongeextractsintoonemajorclusterwith75%similarity,andoneoutliertunicate.Morethan80%similarityobservedbetweenHyrtiossp.andStylissasp.Fouriertransforminfraredspectroscopy（FTIR）showedthatthecontributionofmajorpeaksfoundinthemarineorganismsweretowardssulfones,sulfoxides,cyanatesandketones.
出版日期
2016年03月13日（中国期刊网平台首次上网日期，不代表论文的发表时间）
