John Cullen

Professor

Fellow of the Royal Society of Canada
Fellow of the Oceanography Society

Email: john.cullen@dal.ca

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Recent Submissions

  • Primary Production Estimates from Recordings of Solar Stimulated Fluorescence in the Equatorial Pacific at 150-Degrees-W 

    STEGMANN, PM, MR LEWIS, CO DAVIS, and JJ CULLEN. 1992. "Primary Production Estimates from Recordings of Solar Stimulated Fluorescence in the Equatorial Pacific at 150-Degrees-W." Journal of Geophysical Research-Oceans 97(C1): 627-638. DOI:10.1029/91JC02014
    Biological, optical, and hydrographical data were collected on the WEC88 cruise along 150-degrees-W and during a 6-day time series station on the equator during February/March 1988. This area was characterized by a subsurface ...
  • Effect of Uv-Radiation on Phytoplankton 

    SMITH, RC, and JJ CULLEN. 1995. "Effect of Uv-Radiation on Phytoplankton." Reviews of Geophysics 33: 1211-1223. doi:10.1029/95RG00801
    No abstract available.
  • Ocean Fertilization Science, Policy, and Commerce 

    Strong, Aaron L., John J. Cullen, and Sallie W. Chisholm. 2009. "Ocean Fertilization Science, Policy, and Commerce." Oceanography 22(3): 236-261. DOI: 10.5670/oceanog.2009.83
    Over the past 20 years there has been growing interest in the concept of fertilizing the ocean with iron to abate global warming. This interest was catalyzed by basic scientific experiments showing that iron limits primary ...
  • Methyl iodide in the NW Atlantic; spatial and seasonal variation 

    This article first appeared in: Wang, Lu, Robert M. Moore, and John J. Cullen. 2009. "Methyl iodide in the NW Atlantic; spatial and seasonal variation." Journal of Geophysical Research 114(C7): 07007-Citation C07007. DOI: 10.1029/2007JC004626
    While the global ocean is an important source of atmospheric methyl iodide (CH (sub 3) I), the major producers of CH (sub 3) I within the ocean remain unclear. During a seasonal study in the NW Atlantic, the relationship ...
  • Changes in buoyancy and chemical composition during growth of a coastal marine diatom: Ecological and biogeochemical consequences 

    Richardson, Tammi L., and John J. Cullen. 1995. "Changes in buoyancy and chemical composition during growth of a coastal marine diatom: Ecological and biogeochemical consequences." Marine Ecology Progress Series 128(1-3): 77-90. doi:10.3354/meps128077
    Growth and sinking of the coastal marine diatom Thalassiosira weissflogii was studied during experiments in a 2.1 m tall water column. Under nutrient-replete conditions, T. weissflogii grew rapidly in the upper layer of ...
  • Inferred influence of nutrient availability on the relationship between Sun-induced chlorophyll fluorescence and incident irradiance in the Bering Sea 

    Schallenberg, Christina, Marlon R. Lewis, Dan E Kelley, and John J. Cullen. 2008. "Inferred influence of nutrient availability on the relationship between Sun-induced chlorophyll fluorescence and incident irradiance in the Bering Sea." Journal of Geophysical Research.C.Oceans 113(7). DOI:10.1029/2007JC004355
    This study examines variability in the relationship between Sun-induced chlorophyll fluorescence and incident solar irradiance as a potential diagnostic of the nutritional status of phytoplankton. The study site is the ...
  • Distributions of Pigments and Primary Production in a Gulf-Stream Meander 

    LOHRENZ, SE, JJ CULLEN, DA PHINNEY, DB OLSON, et al. 1993. "Distributions of Pigments and Primary Production in a Gulf-Stream Meander." Journal of Geophysical Research-Oceans 98(C8): 14545-14560. DOI:10.1029/93JC00678
    An investigation was made of physical effects of Gulf Stream meandering on the vertical and horizontal distributions of photosynthetic pigments and primary production. Cruises were conducted in the vicinity of a meander ...
  • Primary production by suspended and benthic microalgae in a turbid estuary: Time-scales of variability in San Antonio Bay, Texas 

    MacIntyre, HL, and JJ Cullen. 1996. "Primary production by suspended and benthic microalgae in a turbid estuary: Time-scales of variability in San Antonio Bay, Texas." Marine Ecology Progress Series 145(1-3): 245-268. doi:10.3354/meps145245
    The within-day, between-day and month-to-month variability of light attenuation and microalgal chlorophyll a (chl a) and photosynthetic response was measured in San Antonio Bay, Texas, USA. Waters were shallow (<2 m) ...
  • Spectrally weighted transparency in models of water-column photosynthesis and photoinhibition by ultraviolet radiation 

    Lehmann, Moritz K., Richard F. Davis, Yannick Huot, and John J. Cullen. 2004. "Spectrally weighted transparency in models of water-column photosynthesis and photoinhibition by ultraviolet radiation." Marine Ecology Progress Series 269: 101-110. doi:10.3354/meps269101
    We present a simple method for describing the influence of variable attenuation of spectral irradiance, Kd(lambda), on water-column photosynthesis and its inhibition by ultraviolet radiation (UV). The approach is based on ...
  • Relationships between vertical mixing and photoadaptation of phytoplankton: Similarity criteria 

    Lewis, M. R., J. J. Cullen, and T. Platt. 1984. "Relationships between vertical mixing and photoadaptation of phytoplankton: Similarity criteria." Marine ecology progress series.Oldendorf 15(1-2): 141-149.
    In their natural environment phytoplankton are exposed to fluctuations in incident irradiance due to vertical displacements in the water column induced by turbulent fluid motion. A reaction-diffusion model is analyzed to ...
  • Inhibition of marine photosynthesis by ultraviolet radiation: Variable sensitivity of phytoplankton in the Weddell-Scotia Confluence during the austral spring 

    Neale, PJ, JJ Cullen, and RF Davis. 1998. "Inhibition of marine photosynthesis by ultraviolet radiation: Variable sensitivity of phytoplankton in the Weddell-Scotia Confluence during the austral spring." Limnology and Oceanography 43(3): 433-448. DOI:10.4319/lo.1998.43.3.0433
    To assess the potential impacts of ozone depletion on photosynthesis in the Southern Ocean, we need to know more about effects of ultraviolet radiation (UV) on phytoplankton in Antarctic waters, where, in addition to ...
  • Mapping coastal optical and biogeochemical variability using an autonomous underwater vehicle and a new bio-optical inversion algorithm 

    Brown, CA, Y. Huot, MJ Purcell, JJ Cullen, et al. 2004. "Mapping coastal optical and biogeochemical variability using an autonomous underwater vehicle and a new bio-optical inversion algorithm." Limnology and Oceanography-Methods 2: 262-281. DOI:10.4319/lom.2004.2.262
    Autonomous underwater vehicles (AUVs) can map water conditions at high spatial ( horizontal and vertical) and temporal resolution, including under cloudy conditions when satellite and airborne remote sensing are not feasible. ...
  • Vertical migration, nutrition and toxicity in the dinoflagellate Alexandrium tamarense 

    Macintyre, J. Geoff, John J. Cullen, and Allan D. Cembella. 1997. "Vertical migration, nutrition and toxicity in the dinoflagellate Alexandrium tamarense." Marine Ecology Progress Series 148(1-3): 201-216. doi:10.3354/meps148201
    The effect of nitrate-N availability on paralytic shellfish toxin production by the dinoflagellate Alexandrium tamarense was studied in a vertically stratified laboratory water column (tank) where swimming behavior could ...
  • Fine-Scale Vertical Resolution of Chlorophyll and Photosynthetic Parameters in Shallow-Water Benthos 

    MACINTYRE, HL, and JJ CULLEN. 1995. "Fine-Scale Vertical Resolution of Chlorophyll and Photosynthetic Parameters in Shallow-Water Benthos." Marine Ecology Progress Series 122(1-3): 227-237. doi:10.3354/meps122227
    The vertical distributions of chlorophyll concentration and photosynthetic parameters of sediment-associated microalgae were measured with a resolution of 1 mm. Sediment and the overlying water were sampled at 3 sandy, ...
  • Biooptical Inferences from Chlorophyll-a Fluorescence - what Kind of Fluorescence is Measured in Flow-Cytometry 

    NEALE, PJ, JJ CULLEN, and CM YENTSCH. 1989. "Biooptical Inferences from Chlorophyll-a Fluorescence - what Kind of Fluorescence is Measured in Flow-Cytometry." Limnology and Oceanography 34(8): 1739-1748. DOI:10.4319/lo.1989.34.8.1739
    No abstract available.
  • New production in the warm waters of the Tropical Pacific Ocean 

    Pena, MA, M. R. Lewis, and J. J. Cullen. 1994. "New production in the warm waters of the Tropical Pacific Ocean." Journal of Geophysical Research.C.Oceans 99(C7): 14-14,268. DOI: 10.1029/94JC00603
    The average depth-integrated rate of new production in the tropical Pacific Ocean was estimated from a calculation of horizontal and vertical nitrate balance over the region enclosed by the climatological 26 degree C ...
  • Retrieval of phytoplankton biomass from simultaneous inversion of reflectance, the diffuse attenuation coefficient, and Sun-induced fluorescence in coastal waters 

    Huot, Yannick, Catherine A. Brown, and John J. Cullen. 2007. "Retrieval of phytoplankton biomass from simultaneous inversion of reflectance, the diffuse attenuation coefficient, and Sun-induced fluorescence in coastal waters." Journal of Geophysical Research-Oceans 112(C6): 06013-C06013. DOI:10.1029/2006JC003794
    [1] A model has been developed to retrieve phytoplankton absorption, a proxy for phytoplankton biomass, from observations of reflectance ( R) and the diffuse attenuation coefficient (K-d) collected by moored radiometers ...
  • Ammonium Distribution in Southern-California Coastal Waters and its Role in the Growth of Phytoplankton 

    EPPLEY, RW, EH RENGER, WG HARRISON, and JJ CULLEN. 1979. "Ammonium Distribution in Southern-California Coastal Waters and its Role in the Growth of Phytoplankton." Limnology and Oceanography 24(3): 495-509. DOI:10.4319/lo.1979.24.3.0495
    No abstract available.
  • New algorithms for MODIS sun-induced chlorophyll fluorescence and a comparison with present data products 

    Huot, Y., CA Brown, and JJ Cullen. 2005. "New algorithms for MODIS sun-induced chlorophyll fluorescence and a comparison with present data products." Limnology and Oceanography-Methods 3: 108-130. DOI:10.4319/lom.2005.3.108
    We discuss important sources of variability in sun-induced chlorophyll fluorescence and examine difficulties in deriving fluorescence data products from satellite imagery, with a focus on the MODerate-resolution Imaging ...
  • Patterns and Prediction in Microbial Oceanography 

    Cullen, John J., W. Ford Doolittle, Simon A. Levin, and William K. W. Li. 2007. "Patterns and Prediction in Microbial Oceanography." Oceanography 20(2): 34-46. doi:10.5670/oceanog.2007.46
    No abstract available.

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