sambrott

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Lamont Associate Research Professor
Lamont-Doherty Earth Observatory
Biology and Paleo Environment
11 Marine Biology
61 Route 9W - PO Box 1000
Palisades
NY
10964-8000
US
Phone: 
(845) 365-8402
Fax: 
(845) 365-8150

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My research is in the area of biological and chemical aquatic science and focuses on microbial life in the ocean and coastal waters.  A large part of my work pertains to the microbial photoautotrophs (phytoplankton) of the ocean.  Phytoplankton are responsible for almost half of the total photosynthesis on the planet.  Due to the fact that phytoplankton are the base of the marine food web, phytoplankton ecology contributes to the analysis of the production of fish, birds and mammals in the sea.  Plankton also play a large role in the carbon cycle and other biogeochemical cycles in the sea.   Phytoplankton growth redistributes material from the surface of the ocean to depth and exchanges material with bacteria and ocean water throughout the water column and sediments.  These are critical steps that  determine ocean nutrient levels as well as help to define the ocean's role in the adsorption of carbon dioxide from the atmosphere.  I typically work in large, oceanographic,  field programs to investigate how ocean production systems respond to changes caused by climatic variation, particularly in polar regions.

Lamont Projects:

Selected Publications:

Biogeochemistry: Ocean biomes blended Sambrotto, R. N. Nature 30 Sept. 2010 Volume: 467 p.: 538–539 (2010) 10.1038/467538a
Compound-specific carbon isotopes from Earth?s largest flood basalt province directly link eruptions to the end-Triassic mass extinction Proceedings of the National Academy of Sciences Whiteside, JH; Olsen, PE; Eglinton, T; Brookfield, ME; Sambrotto, RN Proceedings of the National Academy of Sciences Volume: 107 Issue: 15 p.: 6721-6725 (2010)
Physical forcing and nutrient conditions associated with patterns of Chl a and phytoplankton productivity in the southeastern Bering Sea during summer Sambrotto, R. N.; Mordy, C.; Zeeman, S. I.; Stabeno, P. J.; Macklin, S. A. Deep-Sea Research Part Ii-Topical Studies in Oceanography Aug Volume: 55 Issue: 16-17 p.: 1745-1760 (2008) DOI 10.1016/j.dsr2.2008.03.003
Net community production in terms of C, N, P and Si in the Antarctic Circumpolar Current and its influence on regional water mass characteristics Green, S. E.; Sambrotto, R. N. Deep-Sea Research Part I-Oceanographic Research Papers Jan Volume: 53 Issue: 1 p.: 111-135 (2006) DOI 10.1016/j.dsr.2005.04.008
Plankton community structure and export of C, N, P and Si in the Antarctic Circumpolar Current Green, S. E.; Sambrotto, R. N. Deep-Sea Research Part Ii-Topical Studies in Oceanography Volume: 53 Issue: 5-7 p.: 620-643 (2006) DOI 10.1016/j.dsr2.2006.01.022
Ratios of Si, C and N uptake by microplankton in the Southern Ocean Brzezinski, M. A.; Dickson, M. L.; Nelson, D. M.; Sambrotto, R. Deep-Sea Research Part Ii-Topical Studies in Oceanography Volume: 50 Issue: 3-4 p.: 619-633 (2003) Pii S0967-0645(02)00587-8
A role for ocean biota in tropical intraseasonal atmospheric variability (vol 30, art no 1460, 2003) Gildor, H.; Sobel, A. H.; Cane, M. A.; Sambrotto, R. N. Geophysical Research Letters Jun 21 Volume: 30 Issue: 12 p.: - (2003) Doi 10.1029/2003gl017803
Effect of feeding on the carbon and oxygen isotopic composition in the tissues and skeleton of the zooxanthellate coral Stylophora pistillata Reynaud, S.; Ferrier-Pages, C.; Sambrotto, R.; Juillet-Leclerc, A.; Jaubert, J.; Gattuso, J. P. Marine Ecology-Progress Series Volume: 238 p.: 81-89 (2002)
Nitrogen production in the northern Arabian Sea during the Spring Intermonsoon and Southwest Monsoon seasons Sambrotto, R. N. Deep-Sea Research Part Ii-Topical Studies in Oceanography Volume: 48 Issue: 6-7 p.: 1173-1198 (2001)
Coupling of biological and physical regimes across the Antarctic Polar Front as reflected by nitrogen production and recycling Sambrotto, R. N.; Mace, B. J. Deep-Sea Research Part Ii-Topical Studies in Oceanography Volume: 47 Issue: 15-16 p.: 3339-3367 (2000)