AnnexeII
-52Tableau –3- Calcul des fréquences, densités et biomasses (Dn et Dw) et de l’indice de diversité des espèces
associées à T. torpedo à Annaba
Genre espèce
qi
W (kg) SS+
Fr %
Dn
Dw
qi/Q
log2
(qi/Q)
qi/Q)*log
2 (qi/Q)
wi/W
log2 (wi/W) (wi/W)*log2
(wi/W)
Allotheutis spp
27
0.16
1
33.333
35.253
0.209
0.0002 -12.5603
-0.0021
0.0000
-15.1199
-0.0004
Alosa fallax
1
0.1
1
33.333
1.306
0.131
0.0003 -11.5603
-0.0038
0.0006
-10.7980
-0.0061
Arnoglossus laterna
1
0.005
1
33.333
1.306
0.007
0.0002 -12.5603
-0.0021
0.0003
-11.9500
-0.0030
Balistes carolinensis
2
3.85
1
33.333
2.611
5.027
0.0114
-6.4518
-0.0737
0.0070
-7.1657
-0.0499
Boops boops
7
0.19
1
33.333
9.140
0.248
0.1031
-3.2772
-0.3380
0.0658
-3.9258
-0.2583
Citharus macrolepidotus
3
0.19
1
33.333
3.917
0.248
0.0576
-4.1174
-0.2372
0.0042
-7.9105
-0.0329
Conger conger
1
0.13
1
33.333
1.306
0.170
0.0002 -12.5603
-0.0021
0.0042
-7.8911
-0.0332
Dasyatis pastinaca
8
8.8
1
33.333
10.445
11.490
0.0118
-6.4106
-0.0754
0.2752
-1.8614
-0.5123
Dentex gibbosus
12
1.66
2
66.667
15.668
2.167
0.0005 -10.9754
-0.0055
0.0376
-4.7319
-0.1781
Dentex macrophthlmus
2
0.25
1
33.333
2.611
0.326
0.0003 -11.5603
-0.0038
0.0009
-10.1199
-0.0091
Diplodus annularis
623
23.43
3
100.00
813.43
30.592
0.0003 -11.5603
-0.0038
0.0012
-9.6937
-0.0117
Engraulis encrasicolus
348
1.48
1
33.333
454.37
1.932
0.0012
-9.7530
-0.0113
0.0005
-10.8720
-0.0058
Gymnura altavela
1
0.46
1
33.333
1.306
0.601
0.0700
-3.8358
-0.2686
0.0207
-5.5964
-0.1157
Lithognathus mormyrus
83
5.5
1
33.333
108.37
7.181
0.0002 -12.5603
-0.0021
0.0000
-16.1199
-0.0002
Loligo vulgaris
27
1.49
3
100
35.253
1.945
0.0081
-6.9456
-0.0563
0.0108
-6.5350
-0.0705
Merluccius merluccius
49
3.84
1
33.333
63.978
5.014
0.0002 -12.5603
-0.0021
0.0001
-12.7980
-0.0018
Mullus barbatus
2369 81.36
3
100
3093.154
106.230
0.0003 -11.5603
-0.0038
0.0108
-6.5312
-0.0706
Mullus surmuletus
2
0.06
2
66.667
2.611
0.078
0.0007 -10.5603
-0.0070
0.0029
-8.4057
-0.0248
Mustelus mustelus
3
13.4
2
66.667
3.917
17.496
0.0002 -12.5603
-0.0021
0.0003
-11.9500
-0.0030
Myliobatis aquila
71
98
1
33.333
92.703
127.957
0.0623
-4.0057
-0.2494
0.0937
-3.4165
-0.3200
Pagellus erythrinus
376
33.35
3
100.00
490.935
43.544
0.0020
-8.9754
-0.0178
0.0047
-7.7449
-0.0361
Pagellus acarne
456
13.4
2
66.667
595.390
17.496
0.0974
-3.3607
-0.3272
0.1011
-3.3062
-0.3343
Phycis blennoides
2
0.32
1
33.333
2.611
0.418
0.0002 -12.5603
-0.0021
0.0002
-12.5350
-0.0021
POMA BEN
30
2.1
2
66.667
39.170
2.742
0.0003 -11.5603
-0.0038
0.0002
-12.5350
-0.0021
Pomatomus saltator
3
0.54
2
66.667
3.917
0.705
0.0005 -10.9754
-0.0055
0.0005
-10.8720
-0.0058
Sardina pilchardus
423
7.36
3
100
552.302
9.610
0.0137
-6.1853
-0.0850
0.0154
-6.0166
-0.0929
Scomber scombrus
2
0.2
1
33.333
2.611
0.261
0.0755
-3.7274
-0.2814
0.0376
-4.7319
-0.1781
Sepia officinalis
1
0.09
1
33.333
1.306
0.118
0.0005 -10.9754
-0.0055
0.0015
-9.3650
-0.0142
Seriola dumerili
2
0.43
2
66.667
2.611
0.561
0.0727
-3.7823
-0.2749
0.0357
-4.8093
-0.1715
Sparus aurata
4
1.05
3
100
5.223
1.371
0.0003 -11.5603
-0.0038
0.0007
-10.4761
-0.0074
Spicaras maris
69
2.48
2
66.667
90.092
3.238
0.0002 -12.5603
-0.0021
0.0004
-11.4195
-0.0042
Squilla antis
1
0.01
1
33.333
1.306
0.013
0.0002 -12.5603
-0.0021
0.0003
-11.7980
-0.0033
Trachurus mediterranaeus
588
36
3
100
767.739
47.004
0.0013
-9.5603
-0.0127
0.0247
-5.3386
-0.1319
Trachurus trachurus
439
12.7
2
66.667
573.193
16.582
0.3922
-1.3503
-0.5296
0.2285
-2.1298
-0.4866
Trigla lucerna
1
0.05
1
33.333
1.306
0.065
0.0002 -12.5603
-0.0021
0.0013
-9.5964
-0.0124
Umbrina cirrosa
1
0.09
1
33.333
1.306
0.118
0.0045
-7.8054
-0.0349
0.0004
-11.1199
-0.0050
Uranoscopus scaber
1
0.06
1
33.333
1.306
0.078
0.0050
-7.6534
-0.0380
0.0059
-7.4057
-0.0437
Zeus faber
1
1.5
1
33.333
1.306
1.959
0.0045
-7.8054
-0.0349
0.0042
-7.9008
-0.0331
Somme
6040 356.09
Ish
3.0134
Ish
3.2720
E
0.5742
E
0.6235