Dr. Jeffrey Krause

Email Address:
jkrause@disl.org
Phone Number:
(251) 861-2141 Ext:7577

Associate Professor

Marine Sciences

Bio

Associate Professor, 猫咪社区APP
Senior Marine Scientist II, Dauphin Island Sea Lab
Ph.D. 2008, College of Oceanic & Atmospheric Sciences, Oregon State University

Emphasis: Phytoplankton ecology, physiology and marine biogeochemistry

Research Interests

While phytoplankton may not sound important, nothing could be further from the truth. Phytoplankton give us the three 鈥淔鈥漵:

"Fumes鈥� to breathe, specifically oxygen. In fact, phytoplankton provide the oxygen in 1 of every 2 breaths we take, the rest comes from land plants.
"Food鈥� to eat. Like plants on land, phytoplankton are the base of the oceanic food web, meaning nearly all animal life in the ocean ultimately depends on phytoplankton producing food through process of photosynthesis.
"Fuel鈥� to our way of life. Many people joke that crude oil comes from dinosaurs, but crude oil is actually the ancient remains of phytoplankton which have been compressed and modified by the environment over millions of years.

While my research is diverse, I am best known for studying diatoms, a group of phytoplankton which have a characteristic shell made of glass. Diatoms are important because:

Globally, this group alone produces as much of the oxygen as all the rain forests combined.
Diatoms are the dominant group of phytoplankton in regions with the most productive fisheries (e.g., Northern Gulf of Mexico, Monterey Bay, Peru).
Diatoms have many industrial applications including livestock feed and toothpaste additives, to micro- and nanotechnology including computing and pharmaceutical applications.
Diatom shells are a marvel of nature鈥檚 creativity and engineering.

Current Funded Research Projects

鈥淐OLLABORATIVE RESEARCH: Understanding substrate limitation and Lithium and Silicon isotope fractionation during secondary clay formation in marine systems.鈥� National Science Foundation: Chemical Oceanography and Marine Geology/Geophysics. PI: Krause, J.W., Wang, X. Part of Collaborative Research Project, led by Krause, with Y. Tang (Georgia Institute of Technology).
鈥淩idges 鈥� Safe havens for ice-associated flora and fauna in a seasonally ice-covered Arctic Ocean鈥� (HAVOC). Research Council of Norway. Subaward Lead: Krause, J.W.
鈥淧eering into nature鈥檚 glass boxes - using nano-Raman spectroscopy to answer novel questions in diatom-focused environmental research.鈥� National Science Foundation: EPSCoR Research Infrastructure Improvement. PI: Krause, J.W.

Publications

Pickering, R.A., L. Cassarino, K.R. Hendry, X.L. Wang, K. Maiti, J.W. Krause. Using Stable Isotopes to Disentangle Marine Sedimentary Signals in Reactive Silicon Pools. Geophysical Research Letters. 47, e2020GL087877. doi: 10.1029/2020GL087877.
Cox, T.E., Cebrian, J., Tabor, M., West, L., Krause, J.W.. Do diatoms dominate benthic production in shallow systems? A case study from a mixed seagrass bed. Limnology and Oceanography: Letters doi: 10.1002/lol2.10167
Saad, E.M., R. A. Pickering, K. Shoji, M.I. Hossain, T. G. Glover, J.W. Krause*, and Y. Tang (*Corresponding author). Effect of Cleaning Methods on the Reactivity of Diatom Frustules. Marine Chemistry. 224, 103286. doi: 10.1016/j.marchem.2020.103826.
Marquez, I.A., Abraham, A., Krause, J.W.. Organic polymer consumption facilitates domoic acid entry into the marine food web without direct ingestion of Pseudo-nitzschia. Harmful Algae. 98, 101891. doi: 10.1016/j.hal.2020.101891.
Krause, J.W., M. A. Brzezinski, J.L. Largier, H.M. McNair, M. Maniscalco, K.D. Bidle, A.E. Allen, and K. Thamatrakoln. The interaction of physical and biological factors as drivers of phytoplankton spatial distribution in the northern California Current. Limnology and Oceanography. doi:10.1002/lno.11431.
Krause, J.W. and M.W. Lomas. Understanding diatoms' past and future biogeochemical role in high鈥恖atitude seas. Geophysical Research Letters. 47, e2019GL085602. doi: 10.1029/2019GL085602.
Agust铆, S., J.W. Krause, I.A. Marquez, P. Wassmann, S. Kristiansen, and C.M. Duarte . Arctic (Svalbard Islands) Active and Exported Diatom Stocks and Cell Health Status. Biogeosciences. 17:35鈥�45. doi.org/10.5194/bg-17-35-2020.
Chaplin, C.C., M. Tabor, I.A. Marquez, K. Maiti, and J.W. Krause . Resuscitation of Microalgae from Mississippi River Plume Sediments. Gulf and Caribbean Research. 30, SC28-SC41. doi: 10.18785/gcr.3001.15.
Krause, J.W., I.K. Schulz, K. A. Rowe, W. Dobbins, M. Winding, M. Sejr, C.M. Duarte, and S. Agust铆 . Silicic acid limitation drives bloom termination and potential carbon sequestration in an Arctic bloom. Scientific Reports. 9. doi: 10.1038/s41598-019-44587-4.
Deleon, S.N., J.W. Krause, and R. Baker. Variability in microphytobenthos biomass and carbon isotopic values in shallow coastal waters of the northern Gulf of Mexico. Gulf and Caribbean Research. 30, SC22-SC27. doi: 10.18785/gcr.3001.11.
Stukel, M.R., T.B. Kelly, L.I. Aluwihare, K.A. Barbeau, R. Goericke, J.W. Krause, M.R. Landry, and M.D. Ohman. The Carbon: 234Thorium ratios of sinking particles in the California Current Ecosystem 1: Relationships with plankton ecosystem dynamics. Marine Chemistry. doi: 10.1016/j.marchem.2019.01.003.
Redalje, D., J. Ammerman, J. Cable, J. Herrera, A. Knapp, J.W. Krause, D. Valdes, and A. Hayward. Nutrients in the Gulf of Mexico: Distributions, Cycles, Sources, Sinks and Processes. In Gulf of Mexico Origin, Waters, and Biota. Volume 5, Chemical Oceanography. Ed: T. S. Bianchi. Texas A&M University Press, College Station. (ISBN-13: 978-1623497743).
Kranzler, C.F., J. W. Krause, M. A. Brzezinski, B. R. Edwards, W. P. Biggs, M. Maniscalco, J. P. McCrow, B. A. S. Van Mooy, K. D. Bidle, A. E. Allen, and K. Thamatrakoln . Silicon limitation facilitates virus infection and mortality of marine diatoms. Nature Microbiology. 4, 1790鈥�1797. doi: 10.1038/s41564-019-0502-x.
Hendry, K. R., Huvenne, V. A. I., Robinson, L. F., Annett, A., Badger, M., Jacobel, A. W., Ng, H.C., Opher, J., Pickering, R. A., Taylor, M. L., Bates, S. L., Cooper, A., Cushman, G. G., Goodwin, C., Hoy, S., Rowland, G., Samperiz, A., Williams, J. A., Achterberg, E. P., Arrowsmith, C., Brearley, J. A., Henley, S. F., Krause, J.W., Leng, M. J., Li, T., McManus, J. F., Meredith, M. P., Perkins, R., Woodward, E. M.. Isotope Cycling in the Labrador Sea: Tracing the biogeochemical pathway of glacial meltwater from Southwest Greenland. Progress in Oceanography. 176, 102126. doi: 10.1016/j.pocean.2019.102126.
Lomas, M.W., S.E. Baer, S. Acton, and J.W. Krause. Pumped up by the Cold: Elemental Quotas and Stoichiometry of Polar Diatoms. Frontiers in Marine Science. doi: 10.3389/fmars.2019.00197
Gancel, H.N., R.H. Carmichael, K. Park, J.W. Krause, and S. Rikard. Field Mark-Recapture of Calcein-Stained Larval Oysters (Crassostrea virginica) in a Freshwater-Dominated Estuary. Estuaries and Coasts. doi.org/10.1007/s12237-019-00582-6.
Ohnemus, D.C., J.W. Krause, M.A. Brzezinski, J.L. Collier, S.B. Baines, and B.S. Twining. The chemical form of silicon in marine Synechococcus Marine Chemistry. doi: 10.1016/j.marchem.2018.08.004.
McNair, H.M., M.A. Brzezinski, and J.W. Krause . Diatom populations in an upwelling environment decrease silica content to avoid growth limitation Environmental Microbiology. doi: 10.1111/1462-2920.14431.
Krause, J.W., C.M. Duarte, I.A. Marquez, P. Assmy, M. Fern谩ndez-M茅ndez, I. Wiedmann, P. Wassmann, S. Kristiansen, and S. Agust铆. Biogenic silica production and diatom dynamics in the Svalbard region during spring Biogeosciences 15, 6503-6517. doi: 10.5194/bg-15-6503-2018.
McNair, H.M., M.A. Brzezinski, C.P. Till, and J.W. Krause. Taxa-specific contributions to silica production in natural diatom assemblages Limnology and Oceanography 63(3), 1056-1075. doi: 10.1002/lno.10754.
Greer, A.T., A.M. Shiller, E.E. Hofmann, J.D. Wiggert, S.J. Warner, S.M. Parra, C. Pan, J.W. Book, D. Joung, S. Dykstra, J.W. Krause, B. Dzwonkowski, I.M. Soto, M.K. Cambazoglu, A.L. Deary, C. Brise帽o-Avena, A.D. Boyette, et al. . Functioning of coastal river-dominated ecosystems and implications for oil spill response: From observations to mechanisms and models Oceanography 31(3). doi.org/10.5670/oceanog.2018.302.
Biard, T., J.W. Krause, M.R. Stukel, and M.D. Ohman. The significance of giant phaeodarians (Rhizaria) to biogenic silica export in the California Current Ecosystem Global Biogeochemical Cycles 32(6), 987-1004. doi: 10.1029/2018GB005877.
Stukel, M.R., T. Biard, J.W. Krause, and M.D. Ohman. Large Phaeodaria in the Twilight Zone: Their Role in the Carbon Cycle Limnology and Oceanography 63(6), 2579-2594. doi: 10.1002/lno.10961.