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Bioavailable iron in oligotrophic Lake Superior assessed using biological reporters
2005
Journal of Plankton Research
Iron bioavailability in Lake Superior was assessed during field surveys conducted in 2001-2002. Dissolved iron (Fe d ) ranged between 1 and 4 nM at offshore stations and >10 nM at most nearshore sites. Iron availability was assessed using a luminescent Synechococcus bioreporter comprising a luciferase reporter controlled by an iron-responsive promoter isiAB. Bioreporter luminescence was negatively correlated to Fe d measured in the samples. Distance from shore was a better predictor of iron
doi:10.1093/plankt/fbi070
fatcat:4jfs2ey4vjf3fbt5aj3s4s5ovi