scholarly journals Determining Dissolved and Biogenic Silica

2018 ◽  
pp. 95-101
Author(s):  
Jaana Koistinen ◽  
Mervi Sjöblom ◽  
Kristian Spilling
Keyword(s):  
Biogenic Silica

THE DISTRIBUTION AND CONTENT OF PARTICULATE BIOGENIC SILICA IN SURFACE WATERS OF PRYDZ BAY, SOUTHERN OCEAN, DURING THE AUSTRAL SUMMER OF 2011

2013 ◽  
Vol 24 (3) ◽  
pp. 247-253
Author(s):  
Chuanyu Hu ◽  
Zhengbing Han ◽  
Bin Xue ◽  
Haisheng Zhang
Keyword(s):  
Southern Ocean ◽  
Surface Waters ◽  
Biogenic Silica ◽  
Austral Summer ◽  
Prydz Bay

In vitro, batch-dissolution of biogenic silica in seawater – the application of recent modelling to real data

2005 ◽  
Vol 66 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Victor W. Truesdale ◽  
Jim E. Greenwood ◽  
Andrew R. Rendell
Keyword(s):  
Biogenic Silica ◽  
Real Data ◽  
Batch Dissolution

Vertical and spatial distribution of biogenic silica in the sediment of the gulf of Riga, Baltic Sea

1997 ◽  
Vol 60 (1-4) ◽  
pp. 245-259 ◽  
Author(s):  
Rolf Carman ◽  
Juris Aigars
Keyword(s):  
Spatial Distribution ◽  
Baltic Sea ◽  
Biogenic Silica ◽  
Gulf Of Riga

Reconsidering the meaning of biogenic silica accumulation rates in the glacial Southern Ocean

The Diatoms ◽  
2012 ◽  
pp. 454-462 ◽  
Author(s):  
Christina L. De La Rocha ◽  
Olivier Ragueneau ◽  
Aude Leynaert
Keyword(s):  
Southern Ocean ◽  
Biogenic Silica ◽  
Accumulation Rates

scholarly journals Silicon cycle in the tropical South Pacific: contribution to the global Si cycle and evidence for an active pico-sized siliceous plankton

2018 ◽  
Vol 15 (18) ◽  
pp. 5595-5620 ◽  
Author(s):  
Karine Leblanc ◽  
Véronique Cornet ◽  
Peggy Rimmelin-Maury ◽  
Olivier Grosso ◽  
Sandra Hélias-Nunige ◽  
...  
Keyword(s):  
Community Structure ◽  
Chlorophyll A ◽  
Biogenic Silica ◽  
New Caledonia ◽  
Size Fraction ◽  
South Pacific ◽  
Size Class ◽  
Biogeochemical Cycle ◽  
Standing Stocks ◽  
Negligible Contribution

Abstract. This article presents data regarding the Si biogeochemical cycle during two oceanographic cruises conducted in the tropical South Pacific (BIOSOPE and OUTPACE cruises) in 2005 and 2015. It involves the first Si stock measurements in this understudied region, encompassing various oceanic systems from New Caledonia to the Chilean upwelling between 8 and 34∘ S. Some of the lowest levels of biogenic silica standing stocks ever measured were found in this area, notably in the southern Pacific gyre, where Chlorophyll a concentrations are the most depleted worldwide. Integrated biogenic silica stocks are as low as 1.08±0.95 mmol m−2 and are the lowest stocks measured in the South Pacific. Size-fractionated biogenic silica concentrations revealed a non-negligible contribution of the pico-sized fraction (<2–3 µm) to biogenic silica standing stocks, representing 26%±12% of total biogenic silica during the OUTPACE cruise and 11%±9% during the BIOSOPE cruise. These results indicate significant accumulation in this size class, which was undocumented for 2005, but has since then been related to Si uptake by Synechococcus cells. Si uptake measurements carried out during BIOSOPE confirmed biological Si uptake by this size fraction. We further present diatoms community structure associated with the stock measurements for a global overview of the Si cycle in the tropical South Pacific.

Problems with biogenic silica measurement in marginal seas

2002 ◽  
Vol 192 (4) ◽  
pp. 383-392 ◽  
Author(s):  
S.M Liu ◽  
X.W Ye ◽  
J Zhang ◽  
Y.F Zhao
Keyword(s):  
Biogenic Silica ◽  
Marginal Seas

scholarly journals Sunlight photoactivity of rice husks-derived biogenic silica

2019 ◽  
Vol 328 ◽  
pp. 125-135 ◽  
Author(s):  
María C. Fernández de Cordoba ◽  
Juan Matos ◽  
Ricmary Montaña ◽  
Po S. Poon ◽  
Silvania Lanfredi ◽  
...  
Keyword(s):  
Biogenic Silica ◽  
Rice Husks
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