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Cyanobacteria of the 2016 Lake Okeechobee and Okeechobee ... Cyanobacteria of the 2016 Lake Okeechobee

May 31, 2020

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  • U.S. Department of the Interior U.S. Geological Survey

    Open-File Report 2017–1054

    Cyanobacteria of the 2016 Lake Okeechobee and Okeechobee Waterway Harmful Algal Bloom

  • Cover. Photomicrograph of Dolichospermum circinale collected July 9, 2016, from Lake Okeechobee, Florida. These living cells in a coiled filament are illuminated with wide-blue epifluorescence microscopy. Pigments in the cells glow yellow in vegetative cells, which have small orange spots—the aerotopes, and round red cells—the heterocytes.

  • Cyanobacteria of the 2016 Lake Okeechobee and Okeechobee Waterway Harmful Algal Bloom

    By Barry H. Rosen, Timothy W. Davis, Christopher J. Gobler, Benjamin J. Kramer, and Keith A. Loftin

    Open-File Report 2017–1054

    U.S. Department of the Interior U.S. Geological Survey

  • U.S. Department of the Interior RYAN K. ZINKE, Secretary

    U.S. Geological Survey William H. Werkheiser, Acting Director

    U.S. Geological Survey, Reston, Virginia: 2017

    For more information on the USGS—the Federal source for science about the Earth, its natural and living resources, natural hazards, and the environment—visit http://www.usgs.gov or call 1–888–ASK–USGS.

    For an overview of USGS information products, including maps, imagery, and publications, visit http://www.usgs.gov/pubprod/.

    Any use of trade, firm, or product names is for descriptive purposes only and does not imply endorsement by the U.S. Government.

    Although this information product, for the most part, is in the public domain, it also may contain copyrighted materials as noted in the text. Permission to reproduce copyrighted items must be secured from the copyright owner.

    Suggested citation: Rosen, B.H., Davis, T.W., Gobler, C.J., Kramer, B.J., and Loftin, K.A. , 2017, Cyanobacteria of the 2016 Lake Okeechobee Waterway harmful algal bloom: U.S. Geological Survey Open-File Report 2017–1054, 34 p., https://doi. org/10.3133/ofr20171054.

    ISSN 2331-1258 (online)

    http://www.usgs.gov http://www.usgs.gov/pubprod

  • iii

    Acknowledgments

    The U.S. Geological Survey (USGS) has undertaken the task of documenting the cyanobacteria of the 2016 Lake Okeechobee and Okeechobee Waterway bloom in a readily available digital format. These images and associated names are needed for current and future research on algal blooms. This project was funded by the USGS Priority Ecosystem Study program.

    The authors are grateful for the taxonomic advice and thorough review of Sue Watson with Environment and Climate Change, Canada (ret.), Ann St. Amand with PhycoTech, and Jennifer L. Graham with the U.S. Geological Survey (USGS).

    Samples were provided by Bruce Sharfstein of the South Florida Water Management District and Travis Knight and Robert Clendening of the USGS Caribbean-Florida Water Science Center.

    This project was funded by the USGS Priority Ecosystem Study program and USGS Environmental Health Toxic Substances Hydrology Program.

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  • v

    Contents

    Abstract ...........................................................................................................................................................1 Introduction ....................................................................................................................................................1 Methods...........................................................................................................................................................2

    Field Samples.........................................................................................................................................2 Morphologically Based Taxonomy .....................................................................................................4 Microscopy ............................................................................................................................................4

    Organisms .......................................................................................................................................................5 References ....................................................................................................................................................32

    Figures

    1. Locations of the water samples taken from Lake Okeechobee and the Lake Okeechobee Waterway for the photomicrographs in this publication ...............................3

    2. Gloeocapsa punctata ...................................................................................................................5 3. Microcystis aeruginosa ...............................................................................................................6 4. Microcystis wesenbergii .............................................................................................................7 5. Cuspidothrix tropicalis .................................................................................................................8 6. Cylindrospermopsis raciborskii ..................................................................................................9 7. Dolichospermum affine ..............................................................................................................10 8. Dolichospermum circinale ........................................................................................................11 9. Dolichospermum heterosporum ...............................................................................................12 10. Dolichospermum sp. ...................................................................................................................13 11. Fortiea monilispora .....................................................................................................................14 12. Hapalosiphon sp. ........................................................................................................................15 13. Hapalosiphon sp. ........................................................................................................................16 14. Anabaena mediocris ..................................................................................................................17 15. Macrospermum volzii .................................................................................................................18 16. Nostoc sp. ....................................................................................................................................19 17. Planktothrix suspensa ................................................................................................................20 18. Coelomoron pusillum ..................................................................................................................21 19. Planktolyngbya contorta ............................................................................................................22 20. Planktolyngbya limnetica ..........................................................................................................23 21. Aphanocapsa delicatissima ......................................................................................................24 22. Aphanocapsa cf. planctonica ...................................................................................................25 23. Aphanocapsa grevillei ...............................................................................................................26 24. Merismopedia punctata ............................................................................................................27 25. Limnothrix redekei ......................................................................................................................28 26. Pseudanabaena cf. galeata ......................................................................................................29 27. Pseudanabaena mucicola .........................................................................................................30 28. Pseudanabaena sp. ....................................................................................................................31

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    Tables

    1. Sample date, site identification, latitude and longitude, and source for sample collections ........................................................................................................................2

    Conversion Factors

    International System of Units to U.S. customary units

    Multiply By To obtain

    Length

    millimeter (mm) 0.03937 inch (in.) Volume

    liter (L) 33.81402 ounce, fluid (fl. oz) liter (L) 2.113 pint (pt) liter (L) 1.057 quart (qt) liter (L) 0.2642 gallon (gal)

    Temperature in degrees Celsius (°C) may be converted to degrees Fahrenheit (°F) as

    °F = (1.8 × °C) + 32.

    Abbreviations

    cf. compare to

    oC degrees centigrade

    HABs Harmful Algal Blooms

    mm micrometer

    mL milliliter

    NOAA National Oceanographic and Atmospheric Administration

    sp. species

    SFWMD South Florida Water Management District

    USGS U.S. Geological Survey

    UV ultraviolet

  • Cyanobacteria of the 2016 Lake Okeechobee and Okeechobee Waterway Harmful Algal Bloom

    By Barry H. Rosen1, Timothy W. Davis2, Christopher J. Gobler3, Benjamin J. Kramer3 and Keith A. Loftin4

    1U.S. Geological Survey, Southeast Region 2National Ocean and Atmospheric Administration, Great Lakes

    Environmental Research Laboratory 3Stony Brook Schoo