Silicon fluxes at the sediment-water interface in different ecosystems of the world ocean

Range Table - link mol Si/m^2/year
Organism Biosphere
Reference Tréguer PJ, De La Rocha CL. The world ocean silica cycle. Ann Rev Mar Sci. 2013 5 :477-501. doi: 10.1146/annurev-marine-121211-172346 p.487 table 2PubMed ID22809182
Primary Source Pondaven P, Ragueneau O, Treguer P, Hauvespre A, Dezileau L, Reyss JL. Resolving the 'opal paradox' in the Southern Ocean. Nature. 2000 May 11 405(6783):168-72 DOI: 10.1038/35012046 AND Ragueneau O, Regaudie-de-Gioux A, Moriceau B, Gallinari M, Vangriesheim A, et al. 2009. A benthic Si balance on the Congo margin: origin of the 4000 m DSi anomaly and implications for the transfer of Si from land to ocean. Deep-Sea Res. II 56: 2197–207PubMed ID10821269
Comments P.487 4th paragraph: "Opal rain rate and recycling at the water-sediment interface: Summing the net accumulation rates of opal [FB(netdeposit)] and the pore water recycling flux [FD(benthic)] across the sediment-water interface gives the silica rain rate [FS(rain)], i.e., the rate of silica deposition on the seafloor (Figure 1, Table 2). Ragueneau et al. (primary source) compared the reconstructed burial rate with the directly measured flux of silica into sediment traps moored just above the nepheloid layer (data not shown in Table 2) for typical ecosystems of the world ocean. The two approaches usually gave comparable rain rates." P.487 bottom paragraph: "The diffusive flux of DSi [dissolved silicon] at the water-sediment interface [FD(benthic)] was previously estimated at 23±15 Tmol Si/year (see Tr´eguer et al. 1995, table 2), based on a set of measurements." See notes beneath table. 1Tmol=1 teramole = 10^12 moles
Entered by Uri M
ID 114455