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Chapitre Troisième: Estimation du niveau d’exploitation
Tableau III.19 – Effet du changement de maillage sur la production de la flottille chalutière
(Lophius piscatorius)
Facteur de F (X)
Production Y
Biomasse B
Valeur V
0.0
0
10604.894
0
0.2
161.015725
9061.05285
128812.58
0.4
268.763972
7829.95364
215011.178
0.6
341.257889
6825.57231
273006.312
0.8
389.745844
5991.60767
311796.675
1.0
421.52496
5289.50956
337219.968
1.2
441.477769
4691.87343
353182.215
1.4
452.955626
4178.59315
362364.501
1.6
458.308419
3734.51672
366646.735
1.8
459.213609
3347.96147
367370.888
2.0
456.886844
3009.74164
365509.475
2.2
452.220304
2712.51229
361776.243
2.4
445.875681
2450.315
356700.545
2.6
438.347903
2218.25564
350678.322
2.8
430.009626
2012.27085
344007.701
3.2
411.961255
1665.4336
329569.004
3.4
402.627482
1519.25781
322101.986
3.8
383.96567
1270.85985
307172.536
4.5
352.77673
944.892152
282221.384
Tableau III.20 – Effet du changement de maillage sur la production de la flottille chalutière
(Merluccius merluccius)
Facteur de F (X)
Production Y
Biomasse B
Valeur V
0.0
0.0
487.8
0.0
0.2
28.7
318.9
28693.2
0.4
40.0
222.0
39980.3
0.6
43.6
162.5
43624.6
0.8
43.9
123.9
43878.0
1.0
42.7
97.6
42668.9
1.2
40.9
79.0
40891.3
1.4
39.0
65.4
38961.4
1.6
37.1
55.1
37069.1
1.8
35.3
47.2
35295.3
2.0
33.7
41.0
33668.6
2.2
32.2
36.0
32192.5
2.4
30.9
32.0
30859.7
2.6
29.7
28.7
29658.2
2.8
28.6
26.0
28574.7
3.2
26.7
21.8
26711.4
3.4
25.9
20.2
25908.9
3.8
24.5
17.6
24514.9
4.5
22.6
14.4
22602.1