pH

Salinity—NaCl (%)

Nutrient deprivation—BPW dilution

3

0.5

Nd

4

1.0

1:1.125

5

1.5

1:1.3

6

2.0

1:1.5

7

2.5

1:1.8

8

3.0

1:2.25

9

3.5

1:3

10

4.0

1:4.5

11

4.5

1:9

5.0

No

5.5

6.0