Calcification Relative to Calcification at Current pH

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Foraminifera [Heterostegina depressa]

Statistics  
  Decline in pH from the Present
 
0.0 to 0.09
0.09 to 0.17
0.17 to 0.3
0.3 to 0.5
More than 0.5
Number of Results
 
 
1
2
 
Arithmetic Mean
 
 
0.83
0.82
 
Standard Error
 
 
0
0.03
 

Individual Experiement Results  
      Decline in pH from the Present    

Journal References
Experimental Conditions
0.0
to
0.09
0.09
to
0.17
0.17
to
0.3
0.3
to
0.5
More
than
0.5

Vogel and Uthicke (2012)
Calcification of a large benthic foraminifer (Heterostegina depressa) exposed to reduced seawater pH for 40 days. Temperature was held constant at approximately 27.2°C and pH was altered by the addition of CO2.
 

 
0.83
 
 

Vogel and Uthicke (2012)
Calcification of a large benthic foraminifer (Heterostegina depressa) exposed to reduced seawater pH for 40 days. Temperature was held constant at approximately 27.2°C and pH was altered by the addition of CO2.
 

 
 
0.78
 

Vogel and Uthicke (2012)
Calcification of a large benthic foraminifer (Heterostegina depressa) exposed to reduced seawater pH for 40 days. Temperature was held constant at approximately 27.2°C and pH was altered by the addition of CO2.
 

 
 
0.86
 

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