Geoscience Reference
In-Depth Information
Table 4.9 Mean-square deviations of the vertical distributions of ecosystem elements after
30 days under the change of initial concentration of nutrient salts
D
i
Change of the nutrient salts, n(
φ
0
,
ʻ
0
, z, t
0
)
0.5n(
φ
0
,
ʻ
0
, z, t
0
)
0.8n(
φ
0
,
ʻ
0
, z, t
0
)
1.2n(
φ
0
,
ʻ
0
, z, t
0
)
D
2
5.0
0.6
0.9
D
3
0.4
0.4
0.3
D
4
1.3
0.1
0.1
D
P
i¼2
Z
i
1.5
0.4
0.4
D
5
1.1
0.5
0.4
D
6
1.1
0.04
0.03
D
7
0.1
0.03
0.02
D
P
i¼5
Z
i
1.2
0.5
0.4
Notation is given in Table
4.8
Table 4.10 Ecosystem structure dynamics (cal/m
3
) under the change of initial biomass of small
predatory cyclopoids (Z
5
), predatory calanoids (Z
6
) and large predatory chaetognats and
polychaete (Z
7
)
Ecosystem element
Fifth day
Thirtieth day
Initial biomass, Z
ʣ
(
φ
0
,
ʻ
0
, z, t
0
)
Initial biomass, Z
ʣ
(
φ
0
,
ʻ
0
, z, t
0
)
0.3 cal/
m
3
30 cal/
m
3
300 cal/
m
3
0.3 cal/
m
3
30 cal/
m
3
300 cal/
m
3
Bacterioplankton, b
1,789
2,263
2,263
2,269
2,159
1,995
Phytoplankton, p
3,264
3,462
3,794
3,971
2,086
2,614
Protozoa, Z
1
31
12
3
18
3
2
Microzooplankton, Z
2
178
106
101
109
265
465
Small
filtraters, Z
3
70
85
80
80
201
415
Large filtraters, Z
4
67
14
74
145
156
191
Small predatory cyclo-
poids, Z
5
18
14
9
114
119
53
Predatory calanoids, Z
6
1
25
41
14
25
22
Large predatory chae-
tognaths and poly-
chaete, Z
7
36
234
183
213
437
821
Notation Z
ʣ
=Z
5
+Z
6
+ Z
7
7,000 kcal/m
2
upper layer. Variations of surface illumination in range of 2,000
-
under suf
cient concentration of nutrient salts in
fl
uence the vertical structure of the
ecosystem elements with the same forms.
The effects of the nutrient salt concentrations at the initial time of the upwelling
ecosystem formation are shown in Table
4.11
. Variations of nutrient salts from 100
to 400 mg/m
3
and more, practically are displayed only in the beginning of the
ecosystem evolution. The MUE gives a possibility to study different hypothetical
scenarios taking into consideration many situations. For example, Fig.
4.24
char-
acterizes the ecosystem dynamics for absence of predatory elements. In this case,
Search WWH ::
Custom Search