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Partitioning of phytoplankton and bacteria between water and ice during winter in north temperate lakes

Collier, Katie M

Abstract Details

2016, Master of Science (MS), Bowling Green State University, Biological Sciences.
Winter research on ice-covered freshwater environments has been poorly documented, although there is mounting awareness that the season can be important for growth of photoautotrophic organisms. Phytoplankton and bacteria were identified through microscopy and high-throughput 16S- and 18S rDNA tag Illumina sequencing of samples from water and ice phases collected during winter 2015 from Lake Erie as well as two inland lakes in Ohio. High abundances of Proteobacteria, Bacteroidetes and Actinobacteria were identified in both ice and water from the inland Lakes and Lake Erie. Sandusky Bay and the inland lakes were more abundant in Cyanobacteria, whereas pelagic Lake Erie had higher abundances of Verrucomicrobia and Planctomycetes. The centric diatom Cyclostephanos was the dominant phytoplankton during winter in the western basin of Lake Erie with increasing abundances of Aulacoseira islandica in the central basin of the Lake. In Sandusky Bay and the inland lakes, cryptomonads were dominant in water, whereas dinoflagellates partitioned to ice. This partitioning of dinoflagellates to ice was also observed in sample from pelagic Lake Erie. Photosynthetic characterization of photoautotrophs dwelling in water and ice showed that communities from both phases were active, thus supporting ice as a viable habitat for phytoplankton in freshwater lakes.
Robert McKay (Advisor)
George Bullerjahn (Committee Member)
Paul Morris (Committee Member)
97 p.

Recommended Citations

Citations

  • Collier, K. M. (2016). Partitioning of phytoplankton and bacteria between water and ice during winter in north temperate lakes [Master's thesis, Bowling Green State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1467318009

    APA Style (7th edition)

  • Collier, Katie. Partitioning of phytoplankton and bacteria between water and ice during winter in north temperate lakes. 2016. Bowling Green State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1467318009.

    MLA Style (8th edition)

  • Collier, Katie. "Partitioning of phytoplankton and bacteria between water and ice during winter in north temperate lakes." Master's thesis, Bowling Green State University, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=bgsu1467318009

    Chicago Manual of Style (17th edition)