Annexe
Torpedo
marmorata
10.14384
1014.38396
0.00012 -0.00155 0.00036 -0.00407
Torpedo
torpedo
63.67565
13732.45329 0.00075 -0.00777 0.00481 -0.03704
Trachinus
aranaeus
59.11126
20688.94176 0.00069 -0.00729 0.00725 -0.05151
Trigla
lucerna
517.35867
27921.23160 0.00608 -0.04474 0.00978 -0.06529
Uranoscopus
scaber
16.62206
1329.76513
0.00020 -0.00241 0.00047 -0.00516
∑S+ =47 ; Dni : Densité spécifique; x = Dni/Dnt*(Log2(Dni/Dnt)); Dnt= ΣDni=85134; Dwt = Σ Dwi=2854986g; Ish (Dni) =2.78; E
(Dni )=0.50 ; SS+ =0.854 km² ; Dwi : Biomasse spécifique ; Y = (Dwi/Dwt)*(Log2(Dwi/Dw)); Ish (Dwi) =3.16; E(wi)=0.57
Tableau 6. Calcul des indices de diversité spécifique (Ish) et (E) des espèces associées à T. araneus
dans la région Ouest (données Thalassa, 1982)
Genres
Espèces
Dn
Dw
Dni/Dnt
X
Dwi/Dwt
Y
Arnoglossus
laterna
34.92
174.58
0.0010 -0.0099
0.0001 -0.0012
Galeus
galeus
17.46
268854.75 0.0005 -0.0054
0.1343 -0.3889
Citharus
macrolepidotus
17.46
174.58
0.0005 -0.0054
0.0001 -0.0012
Diplodus
annularis
279.33
15886.87
0.0079 -0.0552
0.0079 -0.0554
Diplodus
vulgaris
17.46
872.91
0.0005 -0.0054
0.0004 -0.0049
Illex
spp
71.36
3567.81
0.0020 -0.0181
0.0018 -0.0163
Loligo
vulgaris
14.27
7563.76
0.0004 -0.0045
0.0038 -0.0304
Lophius
budegassa
14.27
8848.17
0.0004 -0.0045
0.0044 -0.0346
Macropipus
depurator
14.27
142.71
0.0004 -0.0045
0.0001 -0.0010
Merluccius
merluccius
128.44
13557.68
0.0036 -0.0294
0.0068 -0.0488
Mullus
barbatus
3277.27 168958.37 0.0927 -0.3180
0.0844 -0.3010
Mullus
surmuletus
344.31
15705.33
0.0097 -0.0651
0.0078 -0.0549
Mustelus
mustelus
87.29
61103.35
0.0025 -0.0214
0.0305 -0.1536
Pagellus
acarne
19640.36 733240.22 0.5554 -0.4712
0.3661 -0.5307
Pagellus
bogaraveo
1256.98
23568.44
0.0355 -0.1711
0.0118 -0.0754
Pagellus
erythrinus
9148.04 576117.32 0.2587 -0.5046
0.2877 -0.5171
Parapenaeus
longirostris
71.36
285.42
0.0020 -0.0181
0.0001 -0.0018
Raja
asterias
87.29
52374.30
0.0025 -0.0214
0.0262 -0.1375
Ranella
gigantea
14.27
2854.25
0.0004 -0.0045
0.0014 -0.0135
Sepia
officinalis
87.29
11347.77
0.0025 -0.0214
0.0057 -0.0423
Spicara
maena
488.83
6983.24
0.0138 -0.0854
0.0035 -0.0285
Squalus
blainvillei
14.27
9419.02
0.0004 -0.0045
0.0047 -0.0364
Squila
mantis
142.71
3425.10
0.0040 -0.0321
0.0017 -0.0157
Torpedo
marmorata
17.46
8729.05
0.0005 -0.0054
0.0044 -0.0342
Trachinus
draco
14.27
2140.69
0.0004 -0.0045
0.0011 -0.0106
Trigla
lucerna
34.92
6110.34
0.0010 -0.0099
0.0031 -0.0255
Trigla
lyra
28.54
570.85
0.0008 -0.0083
0.0003 -0.0034
∑S+ =27 ; Dni : Densité spécifique; x = Dni/Dnt*(Log2(Dni/Dnt)); Dnt = ΣDni=35365; Dwt = Σ Dwi=2002577g; Ish (Dni) =1.91; E
(Dni )=0.39 ; SS+ =0.854 km² ; Dwi : Biomasse spécifique ; Y = (Dwi/Dwt)*(Log2(Dwi/Dw)); Ish (Dwi) =2.56; E(wi)=0.53
Torpedo
marmorata
10.14384
1014.38396
0.00012 -0.00155 0.00036 -0.00407
Torpedo
torpedo
63.67565
13732.45329 0.00075 -0.00777 0.00481 -0.03704
Trachinus
aranaeus
59.11126
20688.94176 0.00069 -0.00729 0.00725 -0.05151
Trigla
lucerna
517.35867
27921.23160 0.00608 -0.04474 0.00978 -0.06529
Uranoscopus
scaber
16.62206
1329.76513
0.00020 -0.00241 0.00047 -0.00516
∑S+ =47 ; Dni : Densité spécifique; x = Dni/Dnt*(Log2(Dni/Dnt)); Dnt= ΣDni=85134; Dwt = Σ Dwi=2854986g; Ish (Dni) =2.78; E
(Dni )=0.50 ; SS+ =0.854 km² ; Dwi : Biomasse spécifique ; Y = (Dwi/Dwt)*(Log2(Dwi/Dw)); Ish (Dwi) =3.16; E(wi)=0.57
Tableau 6. Calcul des indices de diversité spécifique (Ish) et (E) des espèces associées à T. araneus
dans la région Ouest (données Thalassa, 1982)
Genres
Espèces
Dn
Dw
Dni/Dnt
X
Dwi/Dwt
Y
Arnoglossus
laterna
34.92
174.58
0.0010 -0.0099
0.0001 -0.0012
Galeus
galeus
17.46
268854.75 0.0005 -0.0054
0.1343 -0.3889
Citharus
macrolepidotus
17.46
174.58
0.0005 -0.0054
0.0001 -0.0012
Diplodus
annularis
279.33
15886.87
0.0079 -0.0552
0.0079 -0.0554
Diplodus
vulgaris
17.46
872.91
0.0005 -0.0054
0.0004 -0.0049
Illex
spp
71.36
3567.81
0.0020 -0.0181
0.0018 -0.0163
Loligo
vulgaris
14.27
7563.76
0.0004 -0.0045
0.0038 -0.0304
Lophius
budegassa
14.27
8848.17
0.0004 -0.0045
0.0044 -0.0346
Macropipus
depurator
14.27
142.71
0.0004 -0.0045
0.0001 -0.0010
Merluccius
merluccius
128.44
13557.68
0.0036 -0.0294
0.0068 -0.0488
Mullus
barbatus
3277.27 168958.37 0.0927 -0.3180
0.0844 -0.3010
Mullus
surmuletus
344.31
15705.33
0.0097 -0.0651
0.0078 -0.0549
Mustelus
mustelus
87.29
61103.35
0.0025 -0.0214
0.0305 -0.1536
Pagellus
acarne
19640.36 733240.22 0.5554 -0.4712
0.3661 -0.5307
Pagellus
bogaraveo
1256.98
23568.44
0.0355 -0.1711
0.0118 -0.0754
Pagellus
erythrinus
9148.04 576117.32 0.2587 -0.5046
0.2877 -0.5171
Parapenaeus
longirostris
71.36
285.42
0.0020 -0.0181
0.0001 -0.0018
Raja
asterias
87.29
52374.30
0.0025 -0.0214
0.0262 -0.1375
Ranella
gigantea
14.27
2854.25
0.0004 -0.0045
0.0014 -0.0135
Sepia
officinalis
87.29
11347.77
0.0025 -0.0214
0.0057 -0.0423
Spicara
maena
488.83
6983.24
0.0138 -0.0854
0.0035 -0.0285
Squalus
blainvillei
14.27
9419.02
0.0004 -0.0045
0.0047 -0.0364
Squila
mantis
142.71
3425.10
0.0040 -0.0321
0.0017 -0.0157
Torpedo
marmorata
17.46
8729.05
0.0005 -0.0054
0.0044 -0.0342
Trachinus
draco
14.27
2140.69
0.0004 -0.0045
0.0011 -0.0106
Trigla
lucerna
34.92
6110.34
0.0010 -0.0099
0.0031 -0.0255
Trigla
lyra
28.54
570.85
0.0008 -0.0083
0.0003 -0.0034
∑S+ =27 ; Dni : Densité spécifique; x = Dni/Dnt*(Log2(Dni/Dnt)); Dnt = ΣDni=35365; Dwt = Σ Dwi=2002577g; Ish (Dni) =1.91; E
(Dni )=0.39 ; SS+ =0.854 km² ; Dwi : Biomasse spécifique ; Y = (Dwi/Dwt)*(Log2(Dwi/Dw)); Ish (Dwi) =2.56; E(wi)=0.53