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- W2334445231 abstract "AME Aquatic Microbial Ecology Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout the JournalEditorsSpecials AME 73:29-39 (2014) - DOI: https://doi.org/10.3354/ame01708 Connecting the blooms: tracking and establishing the origin of the record-breaking Lake Erie Microcystis bloom of 2011 using DGGE Justin D. Chaffin1,2,*, Von Sigler1, Thomas B. Bridgeman1 1Department of Environmental Sciences and Lake Erie Center, University of Toledo, 6200 Bayshore Drive, Oregon, Ohio 43616, USA 2Present address: F. T. Stone Laboratory, Ohio State University and Ohio Sea Grant, PO Box 119, 878 Bayview Avenue, Put-In-Bay, Ohio 43456, USA *Corresponding author: chaffin.46@osu.edu ABSTRACT: Summer blooms of Microcystis now occur every year in Lake Erie with varying concentration, duration, and spatial extent. The recording-breaking bloom of 2011 began in the western corner of the lake during early summer, and reached its peak in late summer covering 2968 km2. Start and peak blooms were offset by 3 mo and separated by 120 km, raising the question: Is Microcystis transported across the lake or do separate blooms arise from separate source populations? This study addressed this question by measuring the genetic diversity of Microcystis across the lake and throughout the summer. Seven sites separated by about 100 km were sampled monthly during the summer of 2011 for genetic analysis of the Microcystis population. Furthermore, 2 major rivers (Maumee and Sandusky) and lake sediments were sampled and collected prior to bloom formation to investigate source populations. Denaturing gradient gel electrophoresis was used to generate Microcystis-specific molecular fingerprints of the 16S-23S rRNA internal transcribed spacer region. Dendrograms and principal component analysis were used to investigate similarity among samples. Fingerprints of lake water samples were more similar to the sediments than tributaries, indicating the sediments were a more likely bloom source. All lakes samples collected were >50% similar with several universal bands, indicating Microcystis was transported west to east by water currents and that the beginning and peak blooms were not isolated. This information characterizes the origin and movement of this massive and problematic bloom, and can be used to inform management practices aimed at preventing blooms in Lake Erie. KEY WORDS: Cyanobacteria · DGGE · Eutrophication · Microcystis Full text in pdf format PreviousNextCite this article as: Chaffin JD, Sigler V, Bridgeman TB (2014) Connecting the blooms: tracking and establishing the origin of the record-breaking Lake Erie Microcystis bloom of 2011 using DGGE. Aquat Microb Ecol 73:29-39. https://doi.org/10.3354/ame01708 Export citation RSS - Facebook - Tweet - linkedIn Cited by Published in AME Vol. 73, No. 1. Online publication date: August 15, 2014 Print ISSN: 0948-3055; Online ISSN: 1616-1564 Copyright © 2014 Inter-Research." @default.
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- W2334445231 title "Connecting the blooms: tracking and establishing the origin of the record-breaking Lake Erie Microcystis bloom of 2011 using DGGE" @default.
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