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All Journal METAMORFOSA Journal of Biological Sciences
Yohana Deni Suryati
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

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Journal : METAMORFOSA Journal of Biological Sciences

 1 
Analisis Aspek Morfometri Dan Biologi Reproduksi Tongkol Lisong (Auxis rochei) yang Didaratkan Di Ppi Kedonganan, Bali Yohana Deni Suryati; Iriani Setyawati; Deny Suhernawan Yusup
Metamorfosa: Journal of Biological Sciences Vol 10 No 1 (2023)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2023.v10.i01.p04

Abstract

Objective of this research is to study morphometry and reproduction biology of bullet tuna (Auxis rochei, Risso 1810), landed in PPI (Pangkalan Pendaratan Ikan – Fish Landing Base) Kedonganan, Bali. Morphometric aspect covers distribution of length measurement and correlation of length-weight, while gonad maturity is observed hystologically based on gonad cell growth. Result of this study shows that the length of bullet tuna ranges from 16.5 to 35.3 cmFL, with weight extends from 64.8 to 539.4 gram. Growth pattern of bullet tuna is positively allometric (b>3). Generally, landed bullet tuna in PPI Kedonganan are dominated by mature fish with Gonad Maturity Level III, IV, and V by as many as 123 individuals (58.85%) within 22 – 23 cmFL length. The difference of gonad maturity result that bullet tuna spawning season is asynchronous (multiple spawning) and partial spawning Keywords : bullet tuna, length – weight correlation, reproduction aspect, gonad
Co-Authors Deny Suhermawan Yusup IRIANI SETYAWATI