Survival Relative to Survival at Current pH

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Sea Urchin [Hemicentrotus pulcherrimus]

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
2
 
 
 
 
Arithmetic Mean
0.87
 
 
 
 
Standard Error
0.1
 
 
 
 

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

Shirayama and Thornton (2005)

The survival rate of juvenile (<1 year old) sea urchins (Hemicentrotus pulcherrimus) growing for six months under normal and reduced pH conditions was determined. Throughout the experiment, light exposure was not controlled and the temperature of the seawater fluctuated between 20.0 and 23.9C. Reduced pH values were obtained by bubbling CO2 enriched air into the experiment tanks.
0.73

 

 

 

 

Shirayama and Thornton (2005)

The survival rate of juvenile (<1 year old) sea urchins (Hemicentrotus pulcherrimus) growing for six months under normal and reduced pH conditions was determined. Throughout the experiment, light exposure was not controlled and the temperature of the seawater fluctuated between 24.1 and 25.5C. Reduced pH values were obtained by bubbling CO2 enriched air into the experiment tanks.
1.00

 

 

 

 


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