Carbon dioxide limitation of marine phytoplankton growth rates

Nature ◽  
1993 ◽  
Vol 361 (6409) ◽  
pp. 249-251 ◽  
Author(s):  
U. Riebesell ◽  
D. A. Wolf-Gladrow ◽  
V. Smetacek
Keyword(s):  
Carbon Dioxide ◽  
Growth Rates ◽  
Phytoplankton Growth ◽  
Marine Phytoplankton

scholarly journals Effect of lowered pH on marine phytoplankton growth rates

2010 ◽  
Vol 416 ◽  
pp. 79-91 ◽  
Author(s):  
T Berge ◽  
N Daugbjerg ◽  
B Balling Andersen ◽  
PJ Hansen
Keyword(s):  
Growth Rates ◽  
Phytoplankton Growth ◽  
Marine Phytoplankton

scholarly journals Responses of the diatom <i>Asterionellopsis glacialis</i> to increasing sea water CO<sub>2</sub> concentrations and the effect of turbulence

2016 ◽  
Author(s):  
Francesca Gallo ◽  
Kai G. Schulz ◽  
Eduardo B. Azevedo ◽  
João Madruga ◽  
Joana Barcelos e Ramos
Keyword(s):  
Carbon Dioxide ◽  
Ocean Acidification ◽  
Growth Rates ◽  
Sea Water ◽  
Carbon Dioxide Concentration ◽  
Marine Phytoplankton ◽  
Surface Ocean ◽  
Phytoplankton Communities ◽  
Co2 Levels ◽  
Asterionellopsis Glacialis

Abstract. Emissions of greenhouse gases, such as carbon dioxide (CO2), are lead to increasing global and surface ocean temperatures. At the same time, as CO2 equilibrates between the atmosphere and the surface ocean, it decreases sea water pH. As a result, the changes in physical and chemical properties of the ocean can affect marine primary producers in various ways. A number of researches have addressed the effects of ocean acidification on marine phytoplankton. However, phytoplankton responses to combined effects are still poorly understood. Here, we chose monospecific cultures of the cosmopolitan chain forming diatom Asterionellopsis glacialis (A. glacialis), grown semi-continuously under controlled laboratory conditions, to assess the combined effect of ocean acidification (~ 420 to 2800 µatm) and turbulence. At current CO2 levels, growth rates of A. glacialis increased under enhanced turbulence. This was the result of an optimum shift towards lower CO2 concentrations and accompanied by a prevalence of longer chains (more than 6 cells). For increasing CO2 levels (up to ~ 2800 µatm) and decreased pH values, enhanced turbulence significantly decreased growth rates, chain length and organic matter production of A. glacialis. Thus, our study suggests that, even though A. glacialis benefited from enhanced turbulence, at present carbon dioxide concentration, at higher CO2 levels, turbulence magnified the stress by acidification. If in the future, the ocean surface layer will be more frequently exposed to storm and wind events, then phytoplankton communities might be more sensitive to lower pH, with potential consequences for community composition and productivity.

Impact of air emissions from shipping on marine phytoplankton growth

2021 ◽  
Vol 769 ◽  
pp. 145488
Author(s):  
Chao Zhang ◽  
Zongbo Shi ◽  
Junri Zhao ◽  
Yan Zhang ◽  
Yang Yu ◽  
...  
Keyword(s):  
Phytoplankton Growth ◽  
Marine Phytoplankton ◽  
Air Emissions

Food-web manipulations influence grazer control of phytoplankton growth rates in Lake Michigan

1987 ◽  
Vol 9 (5) ◽  
pp. 891-899 ◽  
Author(s):  
Robert M. Dorazio ◽  
James A. Bowers ◽  
John T. Lehman
Keyword(s):  
Food Web ◽  
Growth Rates ◽  
Lake Michigan ◽  
Phytoplankton Growth
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