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The Sosik Lab:

Woods Hole Optical Oceanography and Phytoplankton Ecology

Biology Department, Redfield 3-16

Woods Hole Oceanographic Institution
Woods Hole, MA 02543

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 Research InterestsPeople in the LabCurrent Research ProjectsRelated Web SitesPublicationsContact Information


WELCOME to the Web Site of the Sosik Lab of the Biology Department at the Woods Hole Oceanographic Institution.


Research Interests

The main research interests of the lab include:  Phytoplankton ecology and photophysiology; bio- optical oceanography; modeling of marine primary production; physical forcing and regulation of phytoplankton biomass and production; fluorescence-based assays for photosynthetic properties; relationships between phytoplankton and water column optical properties; scaling from single cells to global systems.


People in the Lab

People in our lab out at sea


Current Research Projects


Related Web Sites


 
Publications       
                                
Johnsen, S. and H. M. Sosik.  2003.  Cryptic coloration as a camouflage strategy in coastal waters.  Limnology and Oceanography.  48: 1277-1288.

Olson, R. J., A. Shalapyonok, and H. M. Sosik.  2003.  An automated submersible flow cytometer for analyzing pico- and nanophytoplankton: FlowCytobot.  Deep-Sea Research I.  50: 301-315. 

Green, R.E., H. M. Sosik, R. J. Olson, and M. D. DuRand.  2003.  Flow cytometric determination of size and complex refractive index for marine particles: comparison with bulk estimates.  Applied Optics.  42: 526-541.  pdf

DuRand, M. D., R. E. Green, H. M. Sosik, and R. J. Olson.  2002.  Diel variations in optical properties of Micromonas pusilla (Prasinophyceae).  J. Phycol.  38: 1132-1142.  pdf

Sosik, H. M. and R. J. Olson.  2002.  Phytoplankton and iron limitation of photosynthetic efficiency in the Southern Ocean during late summer.  Deep-Sea Res.  49: 1195-1216. pdf

Wiebe, P. H., T. K. Stanton, C. H. Greene, M. C. Benfield, H. M. Sosik, T. Austin, J. D. Warren, and T. Hammar.   2002.  BIOMAPER II: an integrated instrument platform for coupled biological and physical measurements in coastal and oceanic regimes.  IEEE J. Oceanic. Eng.  27: 700-716.

Finenko, Z. Z., T. Ya. Churilova, H. M. Sosik, and O. Basturk.  2002.  Variability of photosynthetic parameters of the surface phytoplankton in the Black Sea.  Oceanology.  40: 53-67.  (translated from Russian)  pdf

Sosik, H. M., R. E. Green, W. S. Pegau and C. S. Roesler.  2001.  Temporal and vertical variability in optical properties of New England shelf waters during late summer and spring.  J. Geophys. Res. 106: 9455-9472.  pdf


Gardner, W. D., J. C. Blakey, I. D. Walsh, M. J. Richardson, S. Pegau, J. R. V. Zaneveld, C. Roesler, M. Gregg, J. MacKinnon, H. M. Sosik, and A. J. Williams, III.  2001.  Optics, particles, stratification and storms on the New England continental shelf.  J. Geophys. Res. 106: 9473-9497.  pdf

Olson, R. J., H. M. Sosik, and A. Shalapyonok.  2000.  Effects of iron enrichment on phytoplankton in the Southern Ocean during late summer: Active fluorescence and flow cytometric analyses.  Deep-Sea Res., Part II.  47: 3181-3200.   pdf

Sosik, H. M.  1999.  Storage of marine particulate samples for light absorption measurements.  Limnol. Oceanogr.  44: 1139-1141. 

Olson, R. J., H. M. Sosik, and A. M. Chekalyuk.  1999.  Photosynthetic characteristics of marine phytoplankton from pump-during-probe fluorometry of individual cells at sea.  Cytometry.  37: 1-13. 

Sosik, H. M. 1996. Bio-optical modeling of primary production: Consequences of variability in quantum yield and specific absorption. Mar. Ecol. Prog. Ser. 143: 225-238.

Olson, R. J., A. M. Chekalyuk and H. M. Sosik. 1996. Phytoplankton photosynthetic characteristics from fluorescence induction assays of individual cells. Limnol. Oceanogr. 41: 1253-1263.

Sosik, H. M. and B. G. Mitchell. 1995. Light absorption by phytoplankton, photosynthetic pigments and detritus in the California Current System. Deep Sea-Res. 42: 1717-1748.

Sosik, H. M. and B. G. Mitchell. 1994. Effects of temperature on growth and light absorption in Dunaliella tertiolecta. J. Phycol. 30: 833-840.

Sosik, H. M., M. Vernet and B. G. Mitchell. 1992. A comparison of particulate absorption properties between high- and mid-latitude surface waters. Ant. J. U.S. 27: 162-164.

Sosik, H. M. and B. G. Mitchell. 1991. Absorption, fluorescence and quantum yield for growth in nitrogen-limited Dunaliella tertiolecta. Limnol. Oceanogr. 36: 910-921

Sosik, H. M., S. W. Chisholm and R. J. Olson. 1989. Chlorophyll fluorescence from single cells: Interpretation of flow cytometric signals. Limnol. Oceanogr. 34: 1749-1761.

In Press

Sosik, H.M, R.J. Olson, M.G. Neubert, and A.R. Solow.  Growth rates of coastal phytoplankton from time-series measurements with a submersible flow cytometer.  Limnology and Oceanography.   In press.  

Hiscock, M.R., Marra, J., Smith, W.O., Jr., Goericke, R., Measures, C.I., Vink, S., Olson, R.J., Sosik, H.M., Barber, R.T.  Primary productivity and its regulation in the Pacific sector of the Southern Ocean.  Deep-Sea Res. II.  In press.  

Martin Traykovski, L.V. and H. M. Sosik.  Feature-based classification of optical water types in the northwest Atlantic based on satellite ocean color data.  J. Geophys. Res.   In press. 

Other Publications

Sosik, H.M., R.J. Olson, M.G. Neubert, A. Shalapyonok, and A.R. Solow.  2002.  Time series observations of a phytoplankton community monitored with a new submersible flow cytometer, Proceedings of Ocean Optics XVI, 12 pp.   pdf

Morrison, J.R and Sosik, H.M. 2002.  Inherent optical properties in New England coastal waters: decomposition into contributions from optically important constituents, Proceedings of Ocean Optics XVI, 10 pp.  pdf

Green, R.E., H.M. Sosik, and R.J. Olson.  2002.  The contribution of phytoplankton and non-phytoplankton particles to inherent and apparent optical properties in New England continental shelf waters.  Proceedings of Ocean Optics XVI, 11 pp.  pdf

Martin Traykovski, L.V., W.L. Miller and H.M. Sosik.  2002.  A new approach to evaluation spatial variability of photochemistry based on characterization of optical water types from satellites.  Proceedings of Ocean Optics XVI, 9 pp.  pdf

Mitchell, G., A. Bricaud, K. Carder, J. Cleveland, G. Ferrari, R. Gould, M. Kahru, M. Kishino, H. Maske, T. Moisan, L. Moore, N. Nelson, D. Phinney, R. Reynolds, H. Sosik, D. Stramski, S. Tassan, C. Trees, A. Weidemann, J. Weiland, and A. Vodacek.  2000.  Determination of spectral absorption coefficients of particles, dissolved material, and phytoplankton for discrete water samples.  In: Ocean optics protocols for satellite ocean color sensor validation, revision 2, G. S. Fargion and J. L. Mueller (eds.), NASA/TM 2000-209966. NASA, Goddard Space Flight Center, Greenbelt, Maryland, p. 125-153. 

Martin Traykovski, L. V. and H. M. Sosik.  2000.  Optical classification of northwest Atlantic water types based on satellite ocean color data.  Proceedings of Ocean Optics XV.  12 pp.  pdf

Sosik, H. M. and J. R. Morrison.  2000.  Analysis and visualization of inherent optical properties of the Gulf of Maine observed from a towed vehicle.  Proceedings of Ocean Optics XV.  11 pp.  pdf

DuRand, M. D., R. E. Green, H. M. Sosik, and R.J. Olson.  2000.  Diel variations in optical properties of Micromonas pusilla, a prasinophyte.  Proceedings of Ocean Optics XV.  11 pp.  pdf

Green, R. E., H. M. Sosik, M. D. DuRand, and R. J. Olson.  2000.  Comparison of refractive index estimated from single-cell and bulk optical properties.  Proceedings of Ocean Optics XV.  9 pp.  pdf

Sosik, H.M., R.E. Green and R.J. Olson.  1998.  Optical variability in coastal waters of the northwest Atlantic.  Proceedings of Ocean Optics XIV.  14 pp.  pdf

Martin Traykovski, L. V. and H. M. Sosik.  1998.  Optical classification of water types based on ocean color.  In: Ocean Optics XIV, S. G. Ackleson (ed.).  12 pp.  pdf

Chekalyuk, A. M., R. J. Olson, and H. M. Sosik.  1997.  Pump-during-probe fluorometry of phytoplankton of phytoplankton: group specific photosynthetic characteristics from individual cell analysis.  In: Ocean Optics XIII, S. G. Ackelson and R. Frouin (eds.). Proc. SPIE 2963: 840-845.  

Sosik, H. M.  1995.  The role of phytoplankton photophysiological variability in optical modeling of marine primary production.  In: Proceedings of the International Colloquium on Photosynthesis and Remote Sensing, G. Guyot (ed.), EARSeL, pp. 251-259.  


How to contact Dr. Heidi M. Sosik:

Mailing address: MS# 32, Biology Department 
Woods Hole Oceanographic Institution 
Woods Hole, MA 02543
Telephone number: (508) 289-2311
Fax number: (508) 457-2134
E-mail address: hsosik@whoi.edu
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Funding for our work comes from a variety of sources including the Office of Naval Research, National Aeronautics & Space Administration, and the National Science Foundation.

               
If you have any comments or suggestions, please email brittan@whoi.edu

Last updated April 23, 2003

 
 

























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