SHORT COMMUNICATION: INVESTIGATIONS ON THE AGE, GROWTH AND MORTALITY PARAMETERS OF KAWAKAWA, EUTHYNNUS AFFINIS (CANTOR, 1849) FROM THE NORTH WEST COAST OF INDIA

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MUDUMALA VINOD KUMAR; FAREJIYA MAHESH KUMAR; MALI KIRAN S.; RAO KARRI RAMA; ANKUSH PRADNYA SAWANT; ANANDHAN SIVA

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Journal: INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY Year:2018 | Volume:6 | Issue:1 Page(s): 21-24

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Title

SHORT COMMUNICATION: INVESTIGATIONS ON THE AGE, GROWTH AND MORTALITY PARAMETERS OF KAWAKAWA, EUTHYNNUS AFFINIS (CANTOR, 1849) FROM THE NORTH WEST COAST OF INDIA

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ASYMPTOTIC LENGTH

MORTALITY

EXPLOITATION RATIO

LENGTH AT AGE

Abstract

Kawakawa, Euthynnus affinis contributes to the tune of 35, 466 tonnes forming 1% to thetotal marine fish landings of India. Investigations on growth and MORTALITY were of this species carriedout based on the length frequency data during 2008-2012. The length-weight relationship for thepooled samples were derived for intercept a=0.0286, slope b=2.857 and coefficient of determinationr2=0.917. The values obtained for growth parameters of L∞ was 67.86 cm, for growth coefficient (K) 0.70 and for to -0.26y-1. The natural, total and fishing mortalities recorded as 0.86, 1.48 and 0.62y-1, respectively. The EXPLOITATION RATIO (F/Z) was observed as 0.42. The M/K ratio was estimated at1.23. The average fork length of 46 cm and weight of 2024 g were estimated in the samples collected.The length at the end of 1st year to 5th year was observed to be 33, 52, 64, 70 and 75 cm, respectively.The fishing MORTALITY derived in this study is more than the optimum and limit value indicated thesign of overexploitation.

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APA: Copy

MUDUMALA, VINOD KUMAR, FAREJIYA, MAHESH KUMAR, RAO, KARRI RAMA, ANKUSH, PRADNYA SAWANT, MALI, KIRAN S., & ANANDHAN, SIVA. (2018). SHORT COMMUNICATION: INVESTIGATIONS ON THE AGE, GROWTH AND MORTALITY PARAMETERS OF KAWAKAWA, EUTHYNNUS AFFINIS (CANTOR, 1849) FROM THE NORTH WEST COAST OF INDIA. INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY, 6(1 ), 21-24. SID. https://sid.ir/paper/713304/en

Vancouver: Copy

MUDUMALA VINOD KUMAR, FAREJIYA MAHESH KUMAR, RAO KARRI RAMA, ANKUSH PRADNYA SAWANT, MALI KIRAN S., ANANDHAN SIVA. SHORT COMMUNICATION: INVESTIGATIONS ON THE AGE, GROWTH AND MORTALITY PARAMETERS OF KAWAKAWA, EUTHYNNUS AFFINIS (CANTOR, 1849) FROM THE NORTH WEST COAST OF INDIA. INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY[Internet]. 2018;6(1 ):21-24. Available from: https://sid.ir/paper/713304/en

IEEE: Copy

VINOD KUMAR MUDUMALA, MAHESH KUMAR FAREJIYA, KARRI RAMA RAO, PRADNYA SAWANT ANKUSH, KIRAN S. MALI, and SIVA ANANDHAN, “SHORT COMMUNICATION: INVESTIGATIONS ON THE AGE, GROWTH AND MORTALITY PARAMETERS OF KAWAKAWA, EUTHYNNUS AFFINIS (CANTOR, 1849) FROM THE NORTH WEST COAST OF INDIA,” INTERNATIONAL JOURNAL OF AQUATIC BIOLOGY, vol. 6, no. 1 , pp. 21–24, 2018, [Online]. Available: https://sid.ir/paper/713304/en

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