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dc.contributor.authorSeip, Knut Lehre
dc.date.accessioned2015-01-06T12:08:51Z
dc.date.available2015-10-15T02:03:15Z
dc.date.issued2014-10-15
dc.identifier.citationSeip, K. L. Investigating possible causal relations among physical, chemical and biological variables across regions in the Gulf of Maine. Hydrobiologia, 744(1) 1-17.en_US
dc.identifier.issn0018-8158
dc.identifier.otherFRIDAID 1163544
dc.identifier.urihttp://hdl.handle.net/10642/2232
dc.description.abstractWe examine potential causal relations between ecosystem variables in four regions of the Gulf of Maine under two major assumptions: (i) a causal cyclic variable will precede, or lead, its effect variable; e.g., a peak (through) in the causal variable will come before a peak (through) in the effect variable. (ii) If physical variables determine regional ecosystem properties, then independent clusters of observations of physical, biological and interaction variables from the same stations will show similar patterns. We use the leading–lagging-strength method to establish leading strength and potential causality, and we use principal component analysis, to establish if regions differ in their ecological characteristics. We found that several relationships for physical and chemical variables were significant, and consistent with ‘‘common knowledge’’ of causal relations. In contrast, relationships that included biological variables differed among regions. In spite of these findings, we found that physical and chemical characteristics of near shore and pelagic regions of the Gulf of Maine translate into unique biological assemblages and unique physical–biologi- cal interactionsen_US
dc.language.isoengen_US
dc.publisherSpringeren_US
dc.relation.ispartofseriesHydrobiologia;744(1)
dc.subjectEcosystem dynamicsen_US
dc.subjectPlanktonen_US
dc.subjectEstuariesen_US
dc.subjectCausalityen_US
dc.subjectSuccessionen_US
dc.subjectHabitatsen_US
dc.subjectGulf of Maineen_US
dc.subjectVDP::Matematikk og Naturvitenskap: 400::Zoologiske og botaniske fag: 480::Marinbiologi: 497en_US
dc.titleInvestigating possible causal relations among physical, chemical and biological variables across regions in the Gulf of Maineen_US
dc.typeJournal articleen_US
dc.typePeer revieweden_US
dc.description.versionPostprint version of published article. The original publication is available at www.springerlink.comen_US
dc.identifier.fulltextfulltext https://oda.hio.no/jspui/bitstream/10642/2232/2/1163544post.pdf
dc.identifier.doihttp://dx.doi.org/10.1007/s10750-014-2068-1
dc.embargo.terms2015-10-15


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