53
Dissolved Organic Matter in Natural Waters
Study sites
Country/
Length/
DOC
Reference
latitudes
watershed area a
Surface (Depth) c
Deeper (Depth) b
km or (km 2
) a
(μM C)
Kara Sea, an estuary of Arctic Ocean
72–73ºN
–
423–537
–
Opsahl et al. (1999)
Middle Atlantic Bight (MAB)
USA
–
82–98
48–90 (90–
2600 m)
Mitra et al. (2000)
Arctic shelf, the Beaufort Sea
Canada
–
97–229
–
Osburn et al. (2009)
Arctic Gulf, the Beaufort Sea
Canada
–
70–126
–
Osburn et al. (2009)
South Baltic Sea
53–66ºN
–
474–616
–
Ferrari et al. (1996), Ferrari
and Dowell (1998)
Northern Gulf of Maxico
35–41ºN
–
50–100
–
Wang et al. (2004)
North Pacific Ocean
31ºN
–
87
38–55 (200–
6000 m)
Williams and Druffel (1987)
Western North Pacific
35ºN
–
85–117
66–73 (150 m) Ogawa and Ogura (1992)
Arctic Ocean
74–81ºN
–
58–85 (50–200 m) 49–54 (>1000 m) Opsahl et al. (1999)
Atlantic Ocean
3–75ºN
–
50–97 (<100 m) 33–59 (>1000 m) Ogawa and Tanoue (2003)
Pacific Ocean
0–58ºN, 1267ºS –
40–90
34–45
Ogawa and Tanoue (2003)
Indian Ocean; Arabian Sea
5–20ºN
–
55–95
43
Ogawa and Tanoue (2003)
Antarctis Ocean
42–77ºS
–
38–75
34–60
Ogawa and Tanoue (2003)
Arctic Ocean
70–85ºN
–
34–107
49–54
Ogawa and Tanoue (2003)
“n” indicates the number of upstreams, rivers and lakes whereas DOC levels are mentioned for ranges or average of the samples
a
means the watershed area (km 2
) applicable to lakes and the values in parentheses are river watershed area
b
means the water depth in lakes and oceans and values are mentioned within the bracket
c
means the surface layer and depth belongs within 0–50 m
Table 2 (continued)