Phytoplankton Production in the Southeastern Indian Ocean
40'S
Antardic Convergence
,
133
Fig. 2. Distribution of temperature (0 C) in a transect between South Australia and Antarctica along
115° E
Table 1. Minimum, maximum, average, standard deviation and number of observations of surface
and integrated values of primary production, chlorophyll a, phaeopigment, phosphate, silicate and
nitrate taken during "Eltanin" cruise 46
Min.
Max.
Aver.
Std. dev. No. of
observ.
14C uptake (mgC m- 3 day-I)
0.09
8.65
2.38
2.82
14
"Integrated I·C uptake (gC m- 2 day-I)
0.06
0.20
0.13
0.05
13
Chlorophyll a (mg m- 3 )
0.04
0.73
0.28
0.21
21
"Integrated chlorophyll a (mg m- 2 )
10.0
46.0
19.5
10.2
15
bIntegrated chlorophyll a (mg m -2 )
9.7
78 .5
34.S
23.1
21
Phaeopigment (mg m - 3)
0.04
0.91
0.25
0.25
20
"Integrated phaeopigment (mg m- 2 )
7.1
46.9
17.3
9.5
15
bIntegrated phaeopigment (mg m- 2 )
10.9
S1.0
34.2
22.4
21
PO/--P (,ug-at 1-1)
0.13
1.50
0.86
0.33
19
bIntegrated PO. 3-_p (g-at m -2)
0.07
0.30
0.18
0.05
20
SiO. 4--Si (,ug-at 1-1)
0.1
54.7
21.4
lS.3
18
bIntegrated Si04'--Si (g-at m -2)
0.48
9.32
4.54
3.11
20
N0 3 - -N (,ug-at 1-1)
0.3
27.3
15.01
7.27
20
bIntegrated N03 --N (g-at m- 2 )
0.44
5.12
3.31
1.32
20
"Integrated values from 0 m to depth of euphotic zone.
blntegrated values from 0 m to 200 m.