Calcification Relative to Calcification at Current pH
For a description of how these data are arranged, click here . Otherwise, begin by clicking on (1) the first letter of the common or scientific name, or (2) the natural community or ecosystem of the marine organism(s) for which you seek information, using the links below. Additionally, you may (3) view the calcification results of all marine organisms arrainged by category from the links contained in the yellow summary statistics table below.
Calcification Relative to Calcification at Current pH
Summary Statistics Table for all Organism Categories
Decline in pH from the Present
All Organism Categories 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
30 35 100 91 61
Number of Organisms
13 18 37 31 29
Data Table of Calcification Response by Organism Category Click on the links below to expand/view the data in each category by individual organism.
Decline in pH from the Present
Organism Category
0.0 to 0.09 0.09 to 0.17 0.17 to 0.3 0.3 to 0.5 More than 0.5
Bivalves Number of Results
11 13 18 27 15
Number of Organisms
3 5 5 6 5
Arithmetic Mean
0.61 0.65 0.55 0.40 0.18
Standard Error
0.25 0.10 0.13 0.10 0.08
Bryozoans Number of Results
0 0 0 1 1
Number of Organisms
0 0 0 1 1
Arithmetic Mean
0.00 0.00 0.00 1.09 0.22
Standard Error
0.00 0.00 0.00 0.00 0.00
Corals Number of Results
13 13 44 31 22
Number of Organisms
4 6 9 7 7
Arithmetic Mean
1.16 0.76 0.98 0.64 0.34
Standard Error
0.55 0.17 0.14 0.14 0.11
Crustacean Number of Results
0 0 5 5 3
Number of Organisms
0 0 4 4 3
Arithmetic Mean
0.00 0.00 1.11 1.28 1.95
Standard Error
0.00 0.00 0.09 0.18 0.21
Phytoplankton : Other Number of Results
0 0 0 2 0
Number of Organisms
0 0 0 1 0
Arithmetic Mean
0.00 0.00 0.00 1.67 0.00
Standard Error
0.00 0.00 0.00 0.00 0.00
Echinoderms Number of Results
0 2 7 5 11
Number of Organisms
0 2 5 3 5
Arithmetic Mean
0.00 2.72 1.76 0.98 1.25
Standard Error
0.00 1.47 0.78 0.06 0.52
Gastropods Number of Results
4 0 4 0 4
Number of Organisms
4 0 4 0 4
Arithmetic Mean
0.73 0.00 0.94 0.00 0.43
Standard Error
0.31 0.00 0.51 0.00 0.37
Macroalgae Number of Results
0 3 5 3 4
Number of Organisms
0 3 3 1 3
Arithmetic Mean
0.00 1.73 1.46 0.43 0.29
Standard Error
0.00 0.41 0.20 0.00 0.15
Netamodes Number of Results
1 0 1 0 1
Number of Organisms
1 0 1 0 1
Arithmetic Mean
1.57 0.00 0.66 0.00 0.37
Standard Error
0.00 0.00 0.00 0.00 0.00
Phytoplankton : Coccolithophores Number of Results
1 4 9 7 0
Number of Organisms
1 2 1 3 0
Arithmetic Mean
0.90 0.83 1.02 0.85 0.00
Standard Error
0.00 0.01 0.00 0.08 0.00
Phytoplankton : Foraminifera Number of Results
0 0 7 10 0
Number of Organisms
0 0 5 5 0
Arithmetic Mean
0.00 0.00 1.00 0.95 0.00
Standard Error
0.00 0.00 0.09 0.22 0.00
