Annexe 2 : Résultats de VPA pour M
constante :
Annexe 2.1: Captures en nombre
d'individus et en poids en fonction de la taille de Sardinella aurita
de la région centre de la côte algérienne, obtenues
par la VPA et par l'analyse de cohorte, pour M constante.
|
Les captures en nombre
|
Les captures en poids
|
|
classe
|
capture total
|
capture total
|
|
6.5
|
57634.78
|
86293.32
|
|
7.5
|
806886.94
|
1928518.6
|
|
8.5
|
8933391.14
|
32150479.7
|
|
9.5
|
24033703.9
|
124450442
|
|
10.5
|
32102573.3
|
230665584
|
|
11.5
|
36252277.6
|
350869836
|
|
12.5
|
30085356
|
382676692
|
|
13.5
|
24494782.2
|
400955341
|
|
14.5
|
21901217
|
453101383
|
|
15.5
|
25244034.3
|
649764845
|
|
16.5
|
27952869.1
|
882986225
|
|
17.5
|
26569634.3
|
1017742477
|
|
18.5
|
21958851.8
|
1009178869
|
|
19.5
|
16368278
|
893973296
|
|
20.5
|
16944625.8
|
1090067345
|
|
21.5
|
5705843.37
|
429261364
|
|
22.5
|
30604069
|
2666343253
|
|
23.5
|
26223825.6
|
2631692054
|
|
24.5
|
21440138.7
|
2460553362
|
|
25.5
|
11872765
|
1548418963
|
|
26.5
|
2881739.08
|
426594755
|
|
27.5
|
806886.94
|
134508600
|
|
28.5
|
172904.34
|
32030022.8
|
Annexe 2.2: Mortalités totale
et par pêche en fonction de la taille obtenues par l'analyse de cohorte
et par la VPA de S. aurita de la région centre de la
côte algérienne, pour M constante.
|
VPA morality rates
|
|
classe
|
Z
|
F
|
|
6.5
|
0.81
|
0
|
|
7.5
|
0.813
|
0.003
|
|
8.5
|
0.848
|
0.038
|
|
9.5
|
0.918
|
0.108
|
|
10.5
|
0.964
|
0.154
|
|
11.5
|
0.998
|
0.188
|
|
12.5
|
0.978
|
0.168
|
|
13.5
|
0.959
|
0.149
|
|
14.5
|
0.955
|
0.145
|
|
15.5
|
0.993
|
0.183
|
|
16.5
|
1.035
|
0.225
|
|
17.5
|
1.051
|
0.241
|
|
18.5
|
1.037
|
0.227
|
|
19.5
|
1.004
|
0.194
|
|
20.5
|
1.044
|
0.234
|
|
21.5
|
0.902
|
0.092
|
|
22.5
|
1.436
|
0.626
|
|
23.5
|
1.606
|
0.796
|
|
24.5
|
1.957
|
1.147
|
|
25.5
|
2.297
|
1.487
|
|
26.5
|
1.843
|
1.033
|
|
27.5
|
1.742
|
0.932
|
|
28.5
|
2.11
|
1.3
|
Annexe 2.3: Résultats de la
biomasse obtenus par la VPA et l'analyse de cohorte de la population de S.
aurita de la région centre de la côte algérienne, pour
M constante.
|
VPA - nomber
|
VPA - weight
|
|
classe
|
initial number
|
mean number
|
initial number
|
mean number
|
|
6.5
|
2564326421
|
256872840
|
2936394762
|
384601286
|
|
7.5
|
2356201786
|
246088134.5
|
4473413917
|
588168578
|
|
8.5
|
2156063510
|
234794455.2
|
6343102645
|
845004350
|
|
9.5
|
1956946610
|
222144622.8
|
8472263230
|
1150301117
|
|
10.5
|
1752975762
|
208102126.2
|
10722126917
|
1495269461
|
|
11.5
|
1552310466
|
193279176.2
|
12979310601
|
1870664061
|
|
12.5
|
1359502056
|
178600542
|
15121657185
|
2271745255
|
|
13.5
|
1184750261
|
164727456.1
|
17134287156
|
2696425419
|
|
14.5
|
1026826239
|
151434727
|
18936597467
|
3132943904
|
|
15.5
|
882262893.6
|
138036476.9
|
20402452531
|
3552968151
|
|
16.5
|
745209313.1
|
124100693.3
|
21295941703
|
3920141524
|
|
17.5
|
616734882.4
|
110039830.1
|
21501858884
|
4215045189
|
|
18.5
|
501032985.7
|
96566907.3
|
21070030677
|
4437995361
|
|
19.5
|
400854939
|
84173676.75
|
20128160303
|
4597247149
|
|
20.5
|
316305982.9
|
72286060.32
|
18792771137
|
4650245739
|
|
21.5
|
240809648.3
|
61899916.44
|
16790290202
|
4656847523
|
|
22.5
|
184964872.6
|
48883669.16
|
15022447093
|
4258931759
|
|
23.5
|
114765031.6
|
32947467.01
|
10784050551
|
3306443097
|
|
24.5
|
61853757.67
|
18688182.67
|
6682885092
|
2144728225
|
|
25.5
|
25276190.96
|
7986668.97
|
3122194028
|
1041603172
|
|
26.5
|
6934224.09
|
2788657.97
|
974126788.1
|
412815606
|
|
27.5
|
1793672.06
|
865338.95
|
285181416.4
|
144252589
|
|
28.5
|
285860.57
|
133003.34
|
51207978.1
|
24638479.1
|
Annexe 2.4: Rendement par recrue,
biomasses et biomasses fécondes par recrue en fonction d'un
multiplicateur d'effort, pour M constante.
|
F
|
Y/R
|
B/R
|
SSB
|
|
0
|
0
|
37.861
|
34.005
|
|
0.12
|
2.029
|
34.201
|
30.369
|
|
0.24
|
3.439
|
31.37
|
27.562
|
|
0.36
|
4.455
|
29.106
|
25.321
|
|
0.48
|
5.21
|
27.243
|
23.482
|
|
0.6
|
5.786
|
25.672
|
21.934
|
|
0.72
|
6.235
|
24.32
|
20.605
|
|
0.84
|
6.591
|
23.136
|
19.444
|
|
0.96
|
6.878
|
22.085
|
18.416
|
|
1.08
|
7.111
|
21.141
|
17.494
|
|
1.2
|
7.304
|
20.284
|
16.659
|
|
1.32
|
7.463
|
19.5
|
15.897
|
|
1.44
|
7.595
|
18.779
|
15.197
|
|
1.56
|
7.706
|
18.11
|
14.550
|
|
1.68
|
7.799
|
17.488
|
13.949
|
|
1.8
|
7.876
|
16.907
|
13.388
|
|
1.92
|
7.941
|
16.362
|
12.864
|
|
2.04
|
7.994
|
15.85
|
12.372
|
|
2.16
|
8.038
|
15.366
|
11.909
|
|
2.28
|
8.074
|
14.91
|
11.473
|
|
2.4
|
8.103
|
14.477
|
11.060
|
|
2.52
|
8.125
|
14.067
|
10.669
|
|
2.64
|
8.142
|
13.677
|
10.298
|
|
2.76
|
8.155
|
13.305
|
9.946
|
|
2.88
|
8.162
|
12.952
|
9.612
|
|
3
|
8.166
|
12.614
|
9.293
|
|
3.12
|
8.167
|
12.291
|
8.989
|
|
3.24
|
8.165
|
11.983
|
8.699
|
|
3.36
|
8.16
|
11.688
|
8.422
|
|
3.48
|
8.152
|
11.405
|
8.157
|
|
3.6
|
8.142
|
11.134
|
7.904
|
|
3.72
|
8.131
|
10.873
|
7.661
|
|
3.84
|
8.117
|
10.624
|
7.429
|
|
3.96
|
8.102
|
10.383
|
7.206
|
|
4.08
|
8.086
|
10.152
|
6.992
|
|
4.2
|
8.068
|
9.93
|
6.787
|
|
4.32
|
8.049
|
9.716
|
6.590
|
|
4.44
|
8.029
|
9.51
|
6.401
|
|
4.56
|
8.008
|
9.312
|
6.219
|
|
4.68
|
7.986
|
9.12
|
6.043
|
|
4.8
|
7.964
|
8.935
|
5.875
|
|
4.92
|
7.941
|
8.757
|
5.712
|
|
5.04
|
7.917
|
8.585
|
5.556
|
|
5.16
|
7.893
|
8.418
|
5.405
|
|
5.28
|
7.868
|
8.257
|
5.260
|
|
5.4
|
7.843
|
8.102
|
5.120
|
|
5.52
|
7.818
|
7.951
|
4.985
|
|
5.64
|
7.792
|
7.806
|
4.854
|
|
5.76
|
7.766
|
7.665
|
4.728
|
|
5.88
|
7.74
|
7.528
|
4.606
|
|
6
|
7.714
|
7.396
|
4.489
|
| 
