GROWTH PARAMETERS AND MORTALITY RATE OF SPANISH MACKEREL (SCOMBEROMERUS COMMERSON) IN COASTAL WATER OF HORMOZGAN PROVINCE (IRAN)

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GHODRATI SHOJAEI M.; TAGHAVI MOTLAGH S.A.; SEYFABADI S.J.; ABTAHI BEHROUZ; NOURI DAFRAZI R.

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Journal: JOURNAL OF MARINE SCIENCES AND TECHNOLOGY Year:2005 | Volume:4 | Issue:1-2 Page(s): 55-64

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Title

GROWTH PARAMETERS AND MORTALITY RATE OF SPANISH MACKEREL (SCOMBEROMERUS COMMERSON) IN COASTAL WATER OF HORMOZGAN PROVINCE (IRAN)

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Keywords

NARROW-BARRED SPANISH MAKHERELQ2

VON BERTHALANFFY EQUATIONQ3

GROWTH PARAMETERSQ2

MORTALITY RATEQ2

PERSIAN GULFQ2

GULF OF OMANQ2

Abstract

Length frequency data based on monthly samples were used to estimate GROWTH PARAMETERS (K, L¥ (FL)) and MORTALITY RATE of Scomberomerus commerson in southeastern Iranian waters (Hormozgan Province) during 2003-2004. The von Bertalanffy GROWTH PARAMETERS were estimated as K= 0.42 (year-1) and L∞ (FL)=140 cm, and t0 calculated using Pauly formula as-0.26, which gives Von Bertalanffy growth equation for this species as (Lt=140[1-exp-0.42(t+0.26))]. Total mortality was estimated as 1.47 (year-1) with applying length converted catch curve. Natural mortality was estimated as 0.49 (year-1) using Pauly empirical formula. Fishing mortality was calculated to be 0.98 (year-1). The relationship between weight and fork length can be expressed as W=0.0076FL2.9826. This equation indicates that the Spanish mackerel has isometric growth pattern. Several indicators suggest that stocks of this fish are under intense catch pressure and, therefore, stock management of this species should be implemented rapidly to maintain their sustainability.

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APA: Copy

GHODRATI SHOJAEI, M., TAGHAVI MOTLAGH, S.A., SEYFABADI, S.J., ABTAHI, BEHROUZ, & NOURI DAFRAZI, R.. (2005). GROWTH PARAMETERS AND MORTALITY RATE OF SPANISH MACKEREL (SCOMBEROMERUS COMMERSON) IN COASTAL WATER OF HORMOZGAN PROVINCE (IRAN). JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, 4(1-2), 55-64. SID. https://sid.ir/paper/74597/en

Vancouver: Copy

GHODRATI SHOJAEI M., TAGHAVI MOTLAGH S.A., SEYFABADI S.J., ABTAHI BEHROUZ, NOURI DAFRAZI R.. GROWTH PARAMETERS AND MORTALITY RATE OF SPANISH MACKEREL (SCOMBEROMERUS COMMERSON) IN COASTAL WATER OF HORMOZGAN PROVINCE (IRAN). JOURNAL OF MARINE SCIENCES AND TECHNOLOGY[Internet]. 2005;4(1-2):55-64. Available from: https://sid.ir/paper/74597/en

IEEE: Copy

M. GHODRATI SHOJAEI, S.A. TAGHAVI MOTLAGH, S.J. SEYFABADI, BEHROUZ ABTAHI, and R. NOURI DAFRAZI, “GROWTH PARAMETERS AND MORTALITY RATE OF SPANISH MACKEREL (SCOMBEROMERUS COMMERSON) IN COASTAL WATER OF HORMOZGAN PROVINCE (IRAN),” JOURNAL OF MARINE SCIENCES AND TECHNOLOGY, vol. 4, no. 1-2, pp. 55–64, 2005, [Online]. Available: https://sid.ir/paper/74597/en

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