scholarly journals Nutrient-limited growth of the coral reef macroalga Sargassum baccularia and experimental growth enhancement by nutrient addition in continuous flow culture

1998 ◽  
Vol 164 ◽  
pp. 199-211 ◽  
Author(s):  
B Schaffelke ◽  
DW Klumpp
Keyword(s):  
Coral Reef ◽  
Continuous Flow ◽  
Nutrient Addition ◽  
Growth Enhancement ◽  
Limited Growth

scholarly journals Responses of two common coral reef macroalgae to nutrient addition, sediment addition, and mechanical damage

2021 ◽  
Vol 536 ◽  
pp. 151512
Author(s):  
Shayna A. Sura ◽  
Allison Bell ◽  
Kristina L. Kunes ◽  
Rachel Turba ◽  
Rebecca Songer ◽  
...  
Keyword(s):  
Coral Reef ◽  
Mechanical Damage ◽  
Nutrient Addition ◽  
Sediment Addition

scholarly journals Net loss of CaCO<sub>3</sub> from coral reef communities due to human induced seawater acidification

2009 ◽  
Vol 6 (1) ◽  
pp. 2163-2182 ◽  
Author(s):  
A. J. Andersson ◽  
I. B. Kuffner ◽  
F. T. Mackenzie ◽  
P. L. Jokiel ◽  
K. S. Rodgers ◽  
...  
Keyword(s):  
Coral Reef ◽  
Continuous Flow ◽  
Fossil Fuels ◽  
Land Use Changes ◽  
Carbonate Dissolution ◽  
Ambient Seawater ◽  
Seawater Acidification ◽  
Reef Communities ◽  
Seawater Pco2 ◽  
Coral Reef Communities

Abstract. Acidification of seawater owing to oceanic uptake of atmospheric CO2 originating from human activities such as burning of fossil fuels and land-use changes has raised serious concerns for its adverse effects on corals, coral reefs and carbonate communities in general. Here we demonstrate a transition from net accumulation towards net loss of calcium carbonate (CaCO3) material owing to decreased calcification and increased carbonate dissolution from replicated subtropical coral reef communities (n=3) incubated in continuous-flow mesocosms subject to present and future seawater conditions. The calcifying community was dominated by the coral Montipora capitata. Daily average community calcification or Net Ecosystem Calcification (NEC = CaCO3 production – dissolution) was positive at 4.5 mmol CaCO3 m−2 h−1 under ambient seawater pCO2 conditions as opposed to negative at −0.1 mmol CaCO3 m−2 h−1 under seawater conditions of double the ambient pCO2. These experimental results provide support for the conclusion that some net calcifying communities could become subject to net dissolution in response to anthropogenic ocean acidification within this century.

Catalyst- and oxidant-free electrochemical para-selective hydroxylation of N-arylamides in batch and continuous-flow

2020 ◽  
Vol 22 (19) ◽  
pp. 6437-6443
Author(s):  
Cheng-Kou Liu ◽  
Meng-Yi Chen ◽  
Xin-Xin Lin ◽  
Zheng Fang ◽  
Kai Guo
Keyword(s):  
Ammonium Salt ◽  
Quaternary Ammonium ◽  
Continuous Flow ◽  
Quaternary Ammonium Salt ◽  
Selective Hydroxylation

A catalyst-, oxidant-, acidic solvent- and quaternary ammonium salt-free electrochemical para-selective hydroxylation of N-arylamides at rt in batch and continuous-flow was developed.

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