University of California Press

Table 1

Present-day ranges for temperature, dissolved oxygen, pH, and seafloor POC flux at abyssal and bathyal depths^a. DOI: https://doi.org/10.1525/elementa.203.t1

Ocean basin

Depth zonea

Temperature (°C)

Dissolved oxygen (mL L^–1)

Seafloor POC flux (mg C m^–2 d^–1)

Atlantic

> 3 km

–0.07 to 4.39

4.6 to 6.92

7.98 to 8.11

0.69 to 10.41

0.2–3 km

–1.23 to 27.83

1.48 to 7.54

7.71 to 8.25

1.4 to 108.05

Pacific

> 3 km

0.7 to 3.84

2.01 to 4.9

7.72 to 8

0.56 to 10.68

0.2–3 km

–0.23 to 28.39

0.24 to 7.31

7.58 to 8.2

0.66 to 81.86

Indian

> 3 km

0.01 to 2.47

2.48 to 5.4

7.9 to 8.03

0.91 to 6.71

0.2–3 km

0.28 to 25.22

0.1 to 7.16

7.7 to 8.12

1.4 to 61.91

Southern

> 3 km

–0.62 to 1.62

4.15 to 6.07

7.94 to 8.03

0.16 to 2.67

0.2–3 km

–2.03 to 8.52

3.66 to 7.81

7.9 to 8.16

0.21 to 51.67

Arctic

> 3 km

–1.05 to –0.25

5.79 to 7.18

NA^b

0.26 to 4.34

0.2–3 km

–1.77 to 7.87

2.67 to 8.13

0.3 to 75.57

Ocean basin	Depth zonea	Temperature (°C)	Dissolved oxygen (mL L^–1)	pH	Seafloor POC flux (mg C m^–2 d^–1)

Atlantic	> 3 km	–0.07 to 4.39	4.6 to 6.92	7.98 to 8.11	0.69 to 10.41
Atlantic	0.2–3 km	–1.23 to 27.83	1.48 to 7.54	7.71 to 8.25	1.4 to 108.05
Pacific	> 3 km	0.7 to 3.84	2.01 to 4.9	7.72 to 8	0.56 to 10.68
Pacific	0.2–3 km	–0.23 to 28.39	0.24 to 7.31	7.58 to 8.2	0.66 to 81.86
Indian	> 3 km	0.01 to 2.47	2.48 to 5.4	7.9 to 8.03	0.91 to 6.71
Indian	0.2–3 km	0.28 to 25.22	0.1 to 7.16	7.7 to 8.12	1.4 to 61.91
Southern	> 3 km	–0.62 to 1.62	4.15 to 6.07	7.94 to 8.03	0.16 to 2.67
Southern	0.2–3 km	–2.03 to 8.52	3.66 to 7.81	7.9 to 8.16	0.21 to 51.67
Arctic	> 3 km	–1.05 to –0.25	5.79 to 7.18	NA^b	0.26 to 4.34
Arctic	0.2–3 km	–1.77 to 7.87	2.67 to 8.13	NA	0.3 to 75.57

^aAbyssal depths are > 3 km; bathyal depths are 0.2–3 km.

^bData not available.

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