FISHING PATTERN, MAXIMUM CONSTANT YIELD (MCY) AND RECRUITMENT PATTERN OF THUNNUS TONGGOL IN HORMUZGAN PROVINCE

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NAZARI BAJGAN A.; YASEMI M.; DARVISHI M.; KAMRANI E.

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Journal: Iranian Scientific Fisheries Journal Year:2012 | Volume:20 | Issue:4 Page(s): 129-138

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Information Journal Paper

Title

FISHING PATTERN, MAXIMUM CONSTANT YIELD (MCY) AND RECRUITMENT PATTERN OF THUNNUS TONGGOL IN HORMUZGAN PROVINCE

Author(s)

NAZARI BAJGAN A. | YASEMI M. | DARVISHI M. | KAMRANI E. | Issue Writer Certificate

Keywords

FISHERIESQ3

FISH STOCKSQ4

MACKERELSQ3

Abstract

Thunnus tonggolis one of the most important large pelagic fish species in Hormuzgan province waters. Nominal catch of T. tonggol in 2010 was 32405 tones comprising 65% of total catch of large pelagic fishes. For sustainable exploitation of the resources of this fish, we need to identify its fishing pattern, maximum constant yield and recruitment pattern. Hence, length and weight data were collected randomly from 6 major artisanal fish-landing sites Hassineh, Kong, Bandar Abbas, Salakh, Sirik and Jask in Hormuzgan province, starting in April 2010 over one year. Growth parameters L¥ and K were estimated at 112.23 cm 0.3 and (1/year), respectively. Hence, the natural mortality was calculated at 0.43 (1/year) and the maximum constant yield was computed at 11880 tones. Length-weight power relationship, W=aFLb, was W=3×10-05FL2.82 that showed T. tonggol have isometric growth. Fishing pattern indicated that almost 85% of the catch was under the size at first maturity. Maximum recruitment pattern was in November with average fork length being 27 cm. For optimum exploitation ofT. tonggol stocks, we suggest two approaches including fishing ban in the maximum recruitment time and gear (Drift gillnet) modification.

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References

SPAWING, FECUNDITY AND FEEDING OF LONGTAIL TUNA (THUNNUS TONGGOL) IN THE PERSIAN GULF AND OMAN SEA (HORMUZGAN PROVINCE)

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APA: Copy

NAZARI BAJGAN, A., YASEMI, M., KAMRANI, E., & DARVISHI, M.. (2012). FISHING PATTERN, MAXIMUM CONSTANT YIELD (MCY) AND RECRUITMENT PATTERN OF THUNNUS TONGGOL IN HORMUZGAN PROVINCE. IRANIAN SCIENTIFIC FISHERIES JOURNAL, 20(4), 129-138. SID. https://sid.ir/paper/5059/en

Vancouver: Copy

NAZARI BAJGAN A., YASEMI M., KAMRANI E., DARVISHI M.. FISHING PATTERN, MAXIMUM CONSTANT YIELD (MCY) AND RECRUITMENT PATTERN OF THUNNUS TONGGOL IN HORMUZGAN PROVINCE. IRANIAN SCIENTIFIC FISHERIES JOURNAL[Internet]. 2012;20(4):129-138. Available from: https://sid.ir/paper/5059/en

IEEE: Copy

A. NAZARI BAJGAN, M. YASEMI, E. KAMRANI, and M. DARVISHI, “FISHING PATTERN, MAXIMUM CONSTANT YIELD (MCY) AND RECRUITMENT PATTERN OF THUNNUS TONGGOL IN HORMUZGAN PROVINCE,” IRANIAN SCIENTIFIC FISHERIES JOURNAL, vol. 20, no. 4, pp. 129–138, 2012, [Online]. Available: https://sid.ir/paper/5059/en

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