567
ABSTRACT.
Phorcus
Phorcus
Key words:
Caracterización de patrones morfológicos, químicos y de crecimiento en conchas de especies
de Phorcus a lo largo de las costas nororientales de Túnez
RESUMEN.
Phorcus
Phorcus
Palabras clave:
Morphological, chemical and growth patterns characterization in shells of
Phorcus species along the northeastern coasts of Tunisia
Wafa Boulajfene
Marine and
Fishery Sciences
MAFIS
Marine and Fishery Sciences 37 (4): 567-582 (2024)
µ
Stramoni-
ta haemastoma Conus ventri-
cosusCarcinus
Phorcus
P.
articulatus P. atratus
P. lineatus P. mutabilis
P. punctulatus
P. richardiP. sauciatus
P. turbinatus P. mariae
Boulajfene et al.: Shell investigation in Phorcus genus
PhorcusP. mutabilisP. richardiP. articula-
tusP. turbinatus
Phorcus
Sampling
Phorcus turbinatus
" "
""
" "
" "
""
""
""
""
""P. artic-
ulatus
""
Marine and Fishery Sciences 37 (4): 567-582 (2024)
Patella ferruginea
Pinna nobilis
=
<
Morphometry
=β
β
Growth patterns
=
=
=
<
>
1
234
5
6
7
8
8'
9
Tunisia
Algeria
Libya
100 km
60 mi
N
Boulajfene et al.: Shell investigation in Phorcus genus
Metal content
Statistical analysis
Marine and Fishery Sciences 37 (4): 567-582 (2024)
Morphometry
P. turbinatus
P. articulatus
=
==
Growth patterns
P. turbinatus
P. articulatus
Phorcus turbinatusP. articulatus
Boulajfene et al.: Shell investigation in Phorcus genus
=
Metal content
P. turbinatus
>
P. articulatus
>
ln (length of the shell)
ln (weight)
1.5
1
0.5
0
-0.5
-1
0 0.4 0.6 0.8
y 2.8015x - 0.721
R 0.9499
y 2.8496x - 1.0746
R 0.917
Monastir
2.5
2
1.5
1
0.5
0
-0.5
-1
0
1
0.5
y 3.0692x - 0.7655
R 0.9928
y 3.3057x - 1.2217
R 0.9892
Kelibia1
2
1.5
1
0.5
0
-0.5
-1
0
1
0.5
y 2.9523x - 0.839
R 0.976
y 3.1523x - 1.2979
R 0.956
Sidi Daoued
2
1.5
1
0.5
0
-0.5
-1
-1.5
-2
00.4 0.6 0.8
-0.2
y 2.844x - 0.7203
R 0.9822y 3.0226x - 1.1712
R 0.9734
Korbous
1.5
1
0.5
0
-0.5
-1
-1.5
0 0.4 0.6 0.8
y = 3.4251x - 0.8355
R = 0.9877 y = 3.8619x - 1.3257
R = 0.9831
La Goulette
1.5
1
0.5
0
-0.5
-1
-1.5
00.4 0.6 0.8
y = 3.5682x - 0.9638
R = 0.9736 y = 3.9344x - 1.4535
R = 0.9583
Cap Zebib Grottes
Shell weightTotal weight
2
1.5
1
0.5
0
-0.5
-1
-1.5
0 0.4 0.6 0.8
y 3.196x - 0.8295
R 0.987
y 3.6638x - 1.3794
R 0.9813
Cap Zebib Port
1.5
1
0.5
0
-0.5
-1
-1.5
0 0.4 0.6 0.8
y 3.331x - 0.8456
R 0.9839y 3.7232x - 1.4094
R 0.9649
Jarzouna
2
1.5
1
0.5
0
-0.5
-1
-1.5
01
0.5
y = 3.3978x - 0.9466
R = 0.9896
y 3.7562x - 1.4125
R 0.9865
Bizerte Grottes
0.2
0.2 0.2 0.2
0.2
0.2
Phorcus turbinatus
Marine and Fishery Sciences 37 (4): 567-582 (2024)
Phorcus
P. turbi-
natus
ø
Lacuna parva
P. turbinatus
Cap Zebib Grottes
2
1.5
1
0.5
0
-0.5
-1
01
0.5
y = 2.7487x - 0.6101
R = 0.8607
y = 3.0084x - 1.1152
R = 0.8172
La Goulette
2
1.5
1
0.5
0
-0.5
-1
01
0.5
y = 3.3892x - 1.0423
R = 0.9658
y = 3.7574x - 1.6051
R = 0.9519
Korbous
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
-0.2 01
0.2 0.4 0.6 0.8
y = 1.9288x - 0.0967
R = 0.8956
y = 1.6601x - 0.2261
R = 0.7994
Sidi Daoued
2
1.5
1
0.5
0
-0.5
-1
01
0.5
y = 3.1859x - 0.8735
R = 0.9775
y = 3.2635x - 1.1527
R = 0.9581
Kelibia1
1.8
1.6
1.4
1.2
1
0.8
0.6
0.4
0.2
0
-0.2
-0.4 01
0.5
y = 2.7031x - 0.6599
R = 0.9301
y = 2.64x - 0.9155
R = 0.9016
ln (weight)
ln (length of the shell)
Shell weight
Total weight
Phorcus articulatus
Boulajfene et al.: Shell investigation in Phorcus genus 575
P. articulatus
P. turbinatus
P. turbinatus
P. turbinatus
±
P. articulatus
±
±P. turbinatus
±P. articulatus
P. turbinatus
±
±
P. articula-
tus
Phorcus turbinatusP. articulatus =
Phorcus turbinatus
Phorcus articulatus
Marine and Fishery Sciences 37 (4): 567-582 (2024)
576
Phorcus turbinatus<
± ± ± ± ± ± ± ± ± ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
± ± ± ± ± ± ± < ± ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
± ± ± ± ± ±<< ± ± ± ± ±
± ± ± ± ± ± ±< ± ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
± ± ± ± ± ± ±< ± ± ± ± ±
± ± ± ± ± ±<< ± ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
Phorcus articulatus<
± ± ± ± ± ± ± ±< ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
± ± ± ± ± ± ±<< ± ± ± ±
± ± ± ± ± ±<< ± ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
± ± ± ± ± ± ± ± ± ± ± ± ±
Boulajfene et al.: Shell investigation in Phorcus genus 577
P. turbinatus
P. turbinatus
P. sauciatus
P.
lineatusP. sauciatusSteromphala umbilicalis
Phorcus
66
±P.
turbinatus±P. articulatus
.
Phorcus turbinatus
P. articulatus
Phorcus turbinatus
Phorcus articulatus
Marine and Fishery Sciences 37 (4): 567-582 (2024)
µµµ
±±P. turbinatus
±±P. artic-
ulatus
Lanistes carinatus
±P. turbinatus±
P. articulatus
≈
≈
Margaritifera margaritifera
>
L. carinatus
P. viridis
Boulajfene et al.: Shell investigation in Phorcus genus
Phorcus
Phorcus
Phorcus
Phorcus
Declaration of interest
Author contributions
Gibbula
Gibbula
Steromphala Phorcus
PhorcusOsilinus tur-
binatus
Marine and Fishery Sciences 37 (4): 567-582 (2024)
Monodonta turbinata
Stramonita haemas-
toma
Phorcus tur-
binatus
Phorcus turbinatus
Phorcus articulatus
Phor-
cus
Phorcus lineatus
Mya arenaria
Phorcus turbinatus
Phorcus lin-
eatus
Lanistes carinatus
Boulajfene et al.: Shell investigation in Phorcus genus 581
-
-
-
-
-
Lacuna parva
Cepaea nemora-
lis
-
-
-
Osilinus turbinatus
-
-
-
-
-
-
-
-
-
Patella candei crenata
Phorcus atratus -
-
PhorcusOsilinusturbinatus
-
-
-
Marine and Fishery Sciences 37 (4): 567-582 (2024)
Phorcus
Phorcus
.
Patella
ferruginea
Perna
perna
Pernavir-
idis
