Phytoplankton mineralization in the tropical and subtropical Atlantic Ocean
作者： A. J. Poulton , R. Sanders , P. M. Holligan , M. C. Stinchcombe , T. R. Adey
DOI: 10.1029/2006GB002712
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摘要: Organic carbon fluxes to the deep ocean may be enhanced by association with ballast mineral material such as calcite and opal. We made simultaneous measurements of upper production (calcification), opal (silicification) organic (photosynthesis) at 14 stations between 42°S 49°N in Atlantic Ocean. These confirm light-dependency calcification photosynthesis, substrate dependency silicification. estimate that mineralizing phytoplankton represent ~5–20% fixation, similar contributions from both coccolithophores diatoms. Estimates average turnover times for are ~3 days, indicative their relatively labile nature. By comparison, particulate ~10 days. Rapid suggests an important role plankton community removing ocean. Comparison our surface rates sediment trap data confirms ~70% is dissolved 2–3 km, only a small proportion total (<2%) reaches
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David M. Karl, A Sea of Change: Biogeochemical Variability in the North Pacific Subtropical Gyre Ecosystems. ,vol. 2, pp. 181- 214 ,(1999) , 10.1007/S100219900068
Susana Agustí, Carlos M. Duarte, Repartition de la chlorophylle a du phytoplancton et stabilite de la colonne d'eau dans le centre de l'ocean Atlantique Oceanologica Acta. ,vol. 2, pp. 193- 203 ,(1999)
Shigenobu Takeda, Influence of iron availability on nutrient consumption ratio of diatoms in oceanic waters Nature. ,vol. 393, pp. 774- 777 ,(1998) , 10.1038/31674
Michael J. Behrenfeld, Wayne E. Esaias, Kevin R. Turpie, Assessment of Primary Production at the Global Scale Phytoplankton Productivity: Carbon Assimilation in Marine and Freshwater Ecosystems. pp. 156- 186 ,(2007) , 10.1002/9780470995204.CH7
Richard C. Dugdale, Frances P. Wilkerson, Silicate regulation of new production in the equatorial Pacific upwelling Nature. ,vol. 391, pp. 270- 273 ,(1998) , 10.1038/34630
Ulf Riebesell, Ingrid Zondervan, Björn Rost, Philippe D. Tortell, Richard E. Zeebe, François M. M. Morel, Reduced calcification of marine plankton in response to increased atmospheric CO2. Nature. ,vol. 407, pp. 364- 367 ,(2000) , 10.1038/35030078
Roger Francois, Susumu Honjo, Richard Krishfield, Steve Manganini, Factors controlling the flux of organic carbon to the bathypelagic zone of the ocean Global Biogeochemical Cycles. ,vol. 16, pp. 34-1- 34-20 ,(2002) , 10.1029/2001GB001722
Robert A. Armstrong, Cindy Lee, John I. Hedges, Susumu Honjo, Stuart G. Wakeham, A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals Deep-sea Research Part Ii-topical Studies in Oceanography. ,vol. 49, pp. 219- 236 ,(2001) , 10.1016/S0967-0645(01)00101-1
S.W Gibb, R.G Barlow, D.G Cummings, N.W Rees, C.C Trees, P Holligan, D Suggett, Surface phytoplankton pigment distributions in the Atlantic Ocean: an assessment of basin scale variability between 50°N and 50°S Progress in Oceanography. ,vol. 45, pp. 339- 368 ,(2000) , 10.1016/S0079-6611(00)00007-0
E. L. Venrick, Phytoplankton in an Oligotrophic Ocean: Observations and Questions Ecological Monographs. ,vol. 52, pp. 129- 154 ,(1982) , 10.2307/1942608