Table 11.2.
Primary and secondary production data
N
...
0
Type of community
Location
Salt marsh
Seagrass
Mud flat
Sand flat
Mussel Subtidal
bed
bed
Ria Formosa
Area
km 2
25
3
19
18
17
Intertidal (0/0)
37.3
11.9
28.4
26.9
Primary
Benthic
g C m-2 a-I
600
350
37
130
103
production
t C a-I
15,000
1050
703
2340
1751
Pelagic
g C m-2 a-I
0
22
22
22
100
t C a-I
0
66
418
396
1700
Intertidal
75.1
5.6
5.6
13.7
production (0/0)
Lagoon
64.0
4.8
4.8
11.7
14.7
production (0/0)
Secondary
g C m-2
a-I
3
29
36
17
production
t C a-I
75
87
684
306
Sylt-Romo Bay Area
km 2
10
15.5
10
109
0.4
269
Intertidal (0/0)
Low
1l.5
7.7
80.5
0.3
Primary
Benthic
gCm-2 a-I
606
355
360
36
31
production
t C a-I
9393
3550
39240
14.4
8339
Pelagic
g C m-2
a-I
0
43
43
43
43
218
t C a-I
0
667
430
4687
17.2
58,724
Intertidal
Low
17.4
6.9
75.8
0.05
production (0/0)
~
Lagoon
Low
8.0
3.2
35.1
0.03
53.6
(/)
production (0/0)
"d
' "'
~
Secondary
g C m-2
a-I
Low
58
56
::s
53
309
(JQ
(1)
production
t C a-I
899
560
5777
124
...
~