Authors:

Made Ayu Pratiwi, Gde Raka Angga Kartika

Abstract:

“The aimed of this study was to determine the reproductive biology aspects of longtail tuna, namely the gonad maturity level, gonadal maturity index, fecundity and length of first maturity. Fish samples were obtained from the catches of fishermen in the Bali Strait which landed at PPP Muncar from December 2018 to February 2019. Gonad maturity level of longtail tuna in December 2018 was mostly found in immature conditions (TKG I). TKG III and IV are most commonly found in February. The highest IKG value was found in February 2019 (0.017). This can be interpreted that lontail tuna experienced peak spawning and was actively reproducing in February. The sex ratio of gray tuna is dominated by male. Fecundity at TKG III ranged from 18,800 to 33,200 grains and at TKG IV of 154,000 grains. The length of first maturity of longtail tuna was 495 mmFL (male) and was 487 mmFL (female).”

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PDF:

https://jurnal.harianregional.com/jmas/full-83245

Published

2021-10-08

How To Cite

PRATIWI, Made Ayu; KARTIKA, Gde Raka Angga. Biologi Reproduksi Ikan Tongkol Abu-Abu (Thunnus tonggol Bleeker, 1851) Yang Tertangkap Di Perairan Selat Bali.Journal of Marine and Aquatic Sciences, [S.l.], v. 7, n. 1, p. 43-49, oct. 2021. ISSN 2549-7103. Available at: https://jurnal.harianregional.com/jmas/id-83245. Date accessed: 28 Aug. 2025. doi:https://doi.org/10.24843/jmas.2021.v07.i01.p07.

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Issue

Vol 7 No 1 (2021)

Section

Articles

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