Scholars@Duke

• Background
• 

  Education, Training, & Certifications

  • Ph.D., University of California at Berkeley 1968
  • B.A., University of California at Berkeley 1963
• 

  Duke Appointment History

  • Research Professor, Marine Science and Conservation, Nicholas School of the Environment 2003 - 2013
  • Professor with Tenure, Nicholas School of the Environment, Duke University 1992 - 2003
  • Director, Marine Science and Conservation, Nicholas School of the Environment 1990 - 1994
  • Professor with Tenure, Biology, Trinity College of Arts & Sciences 1985 - 1991
  • Assistant Director, Academic Affairs, Marine Science and Conservation, Nicholas School of the Environment 1981 - 1990
  • Acting Director, DUML, Marine Science and Conservation, Nicholas School of the Environment 1989
  • Associate Professor with Tenure, Biology, Trinity College of Arts & Sciences 1980 - 1985
  • Assistant Professor, Biology, Trinity College of Arts & Sciences 1978 - 1980
• Expertise
• 

  Global Scholarship

  • Research

    • North Carolina (State or Province) 
    • United States of America (Country) 
• Research
• 

  Selected Grants

  • Coupling Human and Natural Influences on Coastline Evolution as Climate Changes awarded by  National Science Foundation 2005 - 2011
  • FSML - Technology and Teleconferencing Improvements for the Duke University Marine Laboratory awarded by  National Science Foundation 2005 - 2008
  • (97-0799) FSML-Living Resources Care System awarded by Division of Undergraduate Education 1997 - 2000
  • (94-0752) Support of CIFO and DUML Distance Learning Teleconferencing and Distance DukeNet Conductivity awarded by National Oceanic and Atmospheric Administration 1994 - 1995
  • (94-0059) Minority Training Program in Marine Sciences awarded by  National Science Foundation 1992 - 1994
  • (91-0631) Oceanographic Equipment and Pier Renewal for New Coastal Ocean Research and Training Vessel awarded by  National Science Foundation 1991 - 1994
  • (92-0142) Minority Training Program in Marine Sciences awarded by  National Science Foundation 1991 - 1993
  • (90-0482) Photo-inhibition and the Ecology of Marine Macroalgae awarded by  National Science Foundation 1988 - 1992
  • (91-0360) Photoinhibition and the Ecology of Marine Microalgae awarded by  National Science Foundation 1988 - 1992
  • (88-0394) Photoinhibition and the Ecology of Marine Macroalgae awarded by  National Science Foundation 1988 - 1990
• Publications & Artistic Works
• 

  Selected Publications

  • Academic Articles

    • Paerl, HW, Rossignol, KL, Guajardo, R, Hall, NS, Joyner, AR, Peierls, BL, and Ramus, JS. "FenyMon: ferry-based monitoring and assessment of human and climatically driven environmental change in the Albemarle-Pamlico sound system." Environ Sci Technol 43, no. 20 (October 15, 2009): 7609-7613.  Full Text  Link to Item
    • Lin, J, Xie, L, Pietrafesa, LJ, Ramus, JS, and Paerl, HW. "Water quality gradients across Albemarle-Pamlico estuarine system: Seasonal variations and model applications." Journal of Coastal Research 23, no. 1 (January 1, 2007): 213-229.  Full Text
    • Paerl, HW, Valdes, LM, Joyner, AR, Peierls, BL, Piehler, MF, Riggs, SR, Christian, RR, Eby, LA, Crowder, LB, Ramus, JS, Clesceri, EJ, Buzzelli, CP, and Luettich, RA. "Ecological response to hurricane events in the Pamlico Sound system, North Carolina, and implications for assessment and management in a regime of increased frequency." Estuaries and Coasts 29, no. 6 A (December 1, 2006): 1033-1045. (Review)
    • Buzzelli, CP, Ramus, J, and Paerl, HW. "Ferry-based monitoring of surface water quality in North Carolina estuaries." Estuaries 26, no. 4 A (2003): 975-984.
    • Ramus, J, Eby, LA, McClellan, CM, and Crowder, LB. "Phytoplankton Forcing by a Record Freshwater Discharge Event into a Large Lagoonal Estuary." Estuaries 26, no. 5 (2003): 1344-1352.
    • Litaker, RW, Tester, PA, Duke, CS, Kenney, BE, Pinckney, JL, and Ramus, J. "Seasonal niche strategy of the bloom-forming dinoflagellate Heterocapsa triquetra." Marine Ecology Progress Series 232 (2002): 45-62.
    • Litaker, RW, Warner, VE, Rhyne, C, Duke, CS, Kenney, BE, Ramus, J, and Tester, PA. "Effect of diel and interday variations in light on the cell division pattern and in situ growth rates of the bloom-forming dinoflagellate Heterocapsa triquetra." Marine Ecology Progress Series 232 (2002): 63-74.
    • Paerl, HW, Bales, JD, Ausley, LW, Buzzelli, CP, Crowder, LB, Eby, LA, Fear, JM, Go, M, Peierls, BL, Richardson, TL, and Ramus, JS. "Ecosystem impacts of three sequential hurricanes (Dennis, Floyd, and Irene) on the United States' largest lagoonal estuary, Pamlico Sound, NC." Proc Natl Acad Sci U S A 98, no. 10 (May 8, 2001): 5655-5660.  Full Text  Link to Item
    • Osmond, CB, Ramus, J, Levavasseur, G, Franklin, LA, and Henley, WJ. "Fluorescence quenching during photosynthesis and photoinhibition of Ulva rotundata blid." Planta 190, no. 1 (May 1993).  Full Text
    • Litaker, W, Duke, CS, Kenney, BE, and Ramus, J. "Short-term environmental variability and phytoplankton abundance in a shallow tidal estuary. II. Spring and fall." Marine Ecology Progress Series 94, no. 2 (1993): 141-154.
    • Henley, WJ, Lindley, ST, Levavasseur, G, Osmond, CB, and Ramus, J. "Photosynthetic response of Ulva rotundata to light and temperature during emersion on an intertidal sand flat." Oecologia 89, no. 4 (April 1992): 516-523.  Full Text
    • Peckol, P, and Ramus, J. "Photosynthetic performance of deep-water macroalgae (Phaeophyta, Dictyotales) off Bermuda." Hydrobiologia 231, no. 2 (March 1992): 93-98.  Full Text
    • Franklin, LA, Levavasseur, G, Osmond, CB, Henley, WJ, and Ramus, J. "Two components of onset and recovery during photoinhibition of Ulva rotundata." Planta 186, no. 3 (1992): 399-408.  Full Text
    • Henley, WJ, Levavasseur, G, Franklin, LA, Lindley, ST, Ramus, J, and Osmond, CB. "Diurnal responses of photosynthesis and fluorescence in Ulva rotundata acclimated to sun and shade in outdoor culture." Marine Ecology Progress Series 75, no. 1 (1991): 19-28.
    • Henley, WJ, Levavasseur, G, Franklin, LA, Osmond, CB, and Ramus, J. "Photoacclimation and photoinhibition in Ulva rotundata as influenced by nitrogen availability." Planta 184, no. 2 (1991): 235-243.  Full Text
    • Ramus, J. "A form-function analysis of photon capture for seaweeds." Hydrobiologia 204-205, no. 1 (1990): 65-71.  Full Text
    • Ramus, J, and Kenney, BE. "Shear degradation as a probe of microalgal exopolymer structure and rheological properties." Biotechnology and Bioengineering 34, no. 9 (November 1989): 1203-1208.  Full Text
    • Duke, CS, Litaker, W, and Ramus, J. "Effects of temperature, nitrogen supply, and tissue nitrogen on ammonium uptake rates of the chlorophyte seaweeds Ulva curvata and Codium decorticatum." Journal of Phycology 25, no. 1 (1989): 113-120.
    • Duke, CS, Litaker, W, and Ramus, J. "Effect of temperature on nitrogen-limited growth rate and chemical composition of Ulva curvata (Ulvales: Chlorophyta)." Marine Biology 100, no. 2 (1989): 143-150.  Full Text
    • Henley, WJ, and Ramus, J. "Photoacclimation of Ulva rotundata (Chlorophyta) under natural irradiance." Marine Biology 103, no. 2 (1989): 261-266.  Full Text
    • Henley, WJ, and Ramus, J. "Optimization of pigment content and the limits of photoacclimation for Ulva rotundata (Chlorophyta)." Marine Biology 103, no. 2 (1989): 267-274.  Full Text
    • Kenney, BE, Litaker, W, Duke, CS, and Ramus, J. "Community oxygen metabolism in a shallow tidal estuary." Estuarine, Coastal and Shelf Science 27, no. 1 (July 1988): 33-43.  Full Text
    • Peckol, P, and Ramus, J. "Abundances and physiological properties of deep-water seaweeds from Carolina outer continental shelf." Journal of Experimental Marine Biology and Ecology 115, no. 1 (February 1988): 25-39.  Full Text
    • Duke, CS, Litaker, RW, and Ramus, J. "Seasonal variation in RuBPcase activity and N allocation in the chlorophyte seaweeds ulva curvata (kutz.) de toni and Codium decorticatum (Woodw.) Howe." Journal of Experimental Marine Biology and Ecology 112, no. 2 (October 1987): 145-164.  Full Text
    • Litaker, W, Duke, CS, Kenney, BE, and Ramus, J. "Short-term environmental variability and phytoplankton abundance in a shallow tidal estuary - I. Winter and summer." Marine Biology 96, no. 1 (1987): 115-121.  Full Text
    • Rosenberg, G, and Ramus, J. "Uptake of inorganic nitrogen and seaweed surface area: Volume ratios." Aquatic Botany 19, no. 1-2 (August 1984): 65-72.  Full Text
    • Rosenberg, C, and Ramus, J. "Ecological growth strategies in the seaweeds Gracilaria foliifera (Rhodophyceae) and Ulva sp. (Chlorophyceae): Soluble nitrogen and reserve carbohydrates." Marine Biology 66, no. 3 (1982): 251-259.  Full Text
    • Ramus, J, and Rosenberg, G. "Diurnal photosynthetic performance of seaweeds measured under natural conditions." Marine Biology 56, no. 1 (1980): 21-28.  Full Text
    • Ramus, J, Lemons, F, and Zimmerman, C. "Adaptation of light-harvesting pigments to downwelling light and the consequent photosynthetic performance of the eulittoral rockweeds Ascophyllum nodosum and Fucus vesiculosus." Marine Biology 42, no. 4 (1977): 293-303.  Full Text
    • Ramus, J, Beale, SI, Mauzerall, D, and Howard, KL. "Changes in photosynthetic pigment concentration in seaweeds as a function of water depth." Marine Biology 37, no. 3 (1976): 223-229.  Full Text
    • Ramus, J, Beale, SI, and Mauzerall, D. "Correlation of changes in pigment content with photosynthetic capacity of seaweeds as a function of water depth." Marine Biology 37, no. 3 (1976): 231-238.  Full Text
    • Wassman, ER, and Ramus, J. "Primary-Production measurements for the green seaweed Codium fragile in long island sound." Marine Biology 21, no. 4 (1973): 289-297.  Full Text
    • Ramus, J, and Groves, ST. "Incorporation of sulfate into the capsular polysaccharide of the red alga Porphyridium." Journal of Cell Biology 54, no. 2 (1972): 399-407.
    • Howland, GP, and Ramus, J. "Analysis of blue-green and red algal ribosomal-RNAs by gel electrophoresis." Archiv Für Mikrobiologie 76, no. 4 (1971): 292-298.  Full Text
    • Ramus, J. "Dimorphic pit connections in red alga Pseudogloiophloea." Journal of Cell Biology 41, no. 1 (1969): 340-345.

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