397
ABSTRACT. Tylosurus imperialis
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Φ
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=
T. imperialis
Key words:
Estado de las poblaciones de Tylosurus imperialis en la Bahía de İskenderun, en el noreste del
Mediterráneo, basado en métodos de evaluación con datos limitados
RESUMEN. Tylosurus imperialis
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Stock status of Tylosurus imperialis in the İskenderun Bay at the northeastern
Mediterranean based on data-limited assessment methods
*
Cemal Turan
Marine and
Fishery Sciences
MAFIS
*
Marine and Fishery Sciences 39 (3): 397-408 (2026)
Tylosurus imperialis
Belone belone B. svetovido-
vi
T. imperialis
T. imperialis
Palabras clave:
Turan: Data-limited stock assessment of Tylosurus imperialis 399
Sampling and data collection
T. imperialis
Length-frequency analysis and growth estima-
tion
Φ
Selectivity and size at capture
Tylosurus imperialis
Marine and Fishery Sciences 39 (3): 397-408 (2026)
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Cohort analysis and yield prediction
Mortality and exploitation rates
∞
Tylosurus imperialis
Length classes
100
90
80
70
’22-Apr ’22-May ’22-Jun ’22-Jul ’22-Aug ’22-Sep ’22-Oct ’22-Nov ’22-Dic
110
Turan: Data-limited stock assessment of Tylosurus imperialis
Length-frequency distribution and growth pa-
rameters
T. imperialis
T. imperialis∞=
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Φ
Gear selectivity and size at rst capture
=
=
Tylosurus imperialis
Probability of capture
1.0 1.5 2.0 2.5 3.0 3.5 4.0
1.0
0.8
0.6
0.4
0.2
0.0
Relative age (years)
t50
Marine and Fishery Sciences 39 (3): 397-408 (2026)
Cohort structure and shing mortality patterns
Mortality, exploitation rates and yield analysis
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Growth dynamics and model performance
Tylosurus imperialis
67
600
500
400
300
200
100
0
69 71 73 75 77 79 81 83 85 87 89 91 93 95 97 99 101 103 105 107 109
Midlength (cm)
Population
6
5
4
3
2
1
0
Fishing mortality
Catch Natural losses Survivors Fishing mortality
Turan: Data-limited stock assessment of Tylosurus imperialis
T. imperialis
Tylosurus imperialis
A
F01 Fmax F05
700
600
500
400
300
200
100
0
Yield
Fishing mortality
Biomass
2,500
2,000
1,500
1,000
500
3,000
012345
B120
110
100
90
80
70
60
Lc
Fishing mortality
012345
Marine and Fishery Sciences 39 (3): 397-408 (2026)
=
Gear selectivity and implications for size struc-
ture
Mortality, exploitation and stock status
T. imperialis
B. belone B.
svetovidovi
T. imperialis
Turan: Data-limited stock assessment of Tylosurus imperialis
=
Yield optimization and management implica-
tions
Data limitations and future directions
Marine and Fishery Sciences 39 (3): 397-408 (2026)
T. imperialis
Conict of interest
Articial intelligence uses declaration
Turan: Data-limited stock assessment of Tylosurus imperialis
Author contributions
Tylosurus im-
perialis
Marine and Fishery Sciences 39 (3): 397-408 (2026)
Trachurus medi-
terraneus and T. trachurus
Mullus barbatus
Belone svetovidovi
Belone svetovidovi
Belone svetovidovi
