Fertility Relative to Fertility at Current pH

For a description of this page click here

Holothuria spp. [Sea Cucumber]

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
2
Arithmetic Mean
 
 
0.99
0.34
0.23
Standard Error
 
 
0
0.03
0.08

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

Morita et al. (2010)

Sperm flagellar motility was assessed for the sea cucumber Holothuria spp. over a short time period (~ 2 seconds). 2-3 eggs were placed in 100 Ál pH-adjusted seawater after which 0.5 Ál sperm suspension was added and the subsequent sperm flagellar motility was recorded. Initial conditions included a pH of 8.03, seawater temperature of 26.8░C, salinity of 34.0, bicarbonate value of 1760-1815 Ámol kg-1, carbonate value of 195-220 Ámol kg-1, and aragonite saturation of 3.2-3.5. Experimental conditions included a pH of 7.77, bicarbonate value of 1960-2020 Ámol kg-1, carbonate value of 115-140 Ámol kg-1, and aragonite saturation of 1.9-2.3.
 

 

0.99

 

 

Morita et al. (2010)

Sperm flagellar motility was assessed for the sea cucumber Holothuria spp. over a short time period (~ 2 seconds). 2-3 eggs were placed in 100 Ál pH-adjusted seawater after which 0.5 Ál sperm suspension was added and the subsequent sperm flagellar motility was recorded. Initial conditions included a pH of 8.03, seawater temperature of 26.8░C, salinity of 34.0, bicarbonate value of 1760-1815 Ámol kg-1, carbonate value of 195-220 Ámol kg-1, and aragonite saturation of 3.2-3.5. Experimental conditions included a pH of 7.69, bicarbonate value of 2000-2065 Ámol kg-1, carbonate value of 95-125 Ámol kg-1, and aragonite saturation of 1.6-2.0.
 

 

 

0.30

 

Morita et al. (2010)

Sperm flagellar motility was assessed for the sea cucumber Holothuria spp. over a short time period (~ 2 seconds). 2-3 eggs were placed in 100 Ál pH-adjusted seawater after which 0.5 Ál sperm suspension was added and the subsequent sperm flagellar motility was recorded. Initial conditions included a pH of 8.03, seawater temperature of 26.8░C, salinity of 34.0, bicarbonate value of 1760-1815 Ámol kg-1, carbonate value of 195-220 Ámol kg-1, and aragonite saturation of 3.2-3.5. Experimental conditions included a pH of 7.64, bicarbonate value of 1995-2115 Ámol kg-1, carbonate value of 75-125 Ámol kg-1, and aragonite saturation of 1.2-2.0.
 

 

 

0.38

 

Morita et al. (2010)

Sperm flagellar motility was assessed for the sea cucumber Holothuria spp. over a short time period (~ 2 seconds). 2-3 eggs were placed in 100 Ál pH-adjusted seawater after which 0.5 Ál sperm suspension was added and the subsequent sperm flagellar motility was recorded. Initial conditions included a pH of 8.03, seawater temperature of 26.8░C, salinity of 34.0, bicarbonate value of 1760-1815 Ámol kg-1, carbonate value of 195-220 Ámol kg-1, and aragonite saturation of 3.2-3.5. Experimental conditions included a pH of 7.31, bicarbonate value of 2150-2205 Ámol kg-1, carbonate value of 40-60 Ámol kg-1, and aragonite saturation of 0.6-1.0.
 

 

 

 

0.34

Morita et al. (2010)

Sperm flagellar motility was assessed for the sea cucumber Holothuria spp. over a short time period (~ 2 seconds). 2-3 eggs were placed in 100 Ál pH-adjusted seawater after which 0.5 Ál sperm suspension was added and the subsequent sperm flagellar motility was recorded. Initial conditions included a pH of 8.03, seawater temperature of 26.8░C, salinity of 34.0, bicarbonate value of 1760-1815 Ámol kg-1, carbonate value of 195-220 Ámol kg-1, and aragonite saturation of 3.2-3.5. Experimental conditions included a pH of 6.55, bicarbonate value of 2270-2285 Ámol kg-1, carbonate value of 7-10 Ámol kg-1, and aragonite saturation of 0.1-0.2.
 

 

 

 

0.12


Printer Friendly Version