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dc.contributor.authorBøhn, Thomas
dc.contributor.authorPrimicerio, Raul
dc.contributor.authorHessen, DO
dc.contributor.authorTraavik, Terje
dc.date.accessioned2020-08-25T11:08:20Z
dc.date.available2020-08-25T11:08:20Z
dc.date.issued2008-03-18
dc.description.abstractGenetically modified (GM) maize expressing the Bt-toxin Cry1Ab (Bt-maize) was tested for effects on survival, growth, and reproduction of the water flea <i>Daphnia magna</i>, a crustacean arthropod commonly used as a model organism in ecotoxicological studies. In three repeated experiments, <i>D. magna</i> were fed 100% ground maize in suspension, using either GM or isogenic unmodified (UM) maize. <i>D. magna</i> fed GM-maize showed a significantly reduced fitness performance: The mortality was higher, a lower proportion of females reached sexual maturation, and the overall egg production was lower compared to <i>D. magna</i> fed UM isogenic maize. We conclude that the tested variety of Bt-maize and its UM counterpart do not have the same quality as food sources for this widely used model organism. The combination of a reduced fitness performance combined with earlier onset of reproduction of <i>D. magna</i> fed Bt-maize indicates a toxic effect rather than a lower nutritional value of the GM-maize.en_US
dc.descriptionThis is a post-peer-review, pre-copyedit version of an article published in the <i>Archives of Environmental Contamination and Toxicology</i>. The final authenticated version is available online at <a href=http://dx.doi.org/10.1007/s00244-008-9150-5>http://dx.doi.org/10.1007/s00244-008-9150-5</a>.en_US
dc.identifier.citationBøhn, Primicerio R, Hessen, Traavik T, Traavik t. Reduced fitness of Daphnia magna fed a Bt-transgenic maize variety. Archives of Environmental Contamination and Toxicology. 2008;55(4):584-592en_US
dc.identifier.cristinIDFRIDAID 356726
dc.identifier.doi10.1007/s00244-008-9150-5
dc.identifier.issn0090-4341
dc.identifier.issn1432-0703
dc.identifier.urihttps://hdl.handle.net/10037/19144
dc.language.isoengen_US
dc.publisherSpringer Natureen_US
dc.relation.journalArchives of Environmental Contamination and Toxicology
dc.relation.projectIDinfo:eu-repo/grantAgreement/RCN/SFF/179569/Norway/Centre for Ecological and Evolutionary Synthesis/CEES/en_US
dc.rights.accessRightsopenAccessen_US
dc.rights.holderCopyright 2008 Springer Natureen_US
dc.subjectVDP::Technology: 500::Food science and technology: 600en_US
dc.subjectVDP::Teknologi: 500::Næringsmiddelteknologi: 600en_US
dc.titleReduced fitness of Daphnia magna fed a Bt-transgenic maize varietyen_US
dc.type.versionacceptedVersionen_US
dc.typeJournal articleen_US
dc.typeTidsskriftartikkelen_US
dc.typePeer revieweden_US


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