METAMORFOSA Journal of Biological Sciences
Vol 10 No 1 (2023)

Analisis Aspek Morfometri Dan Biologi Reproduksi Tongkol Lisong (Auxis rochei) yang Didaratkan Di Ppi Kedonganan, Bali

Yohana Deni Suryati (Unknown)
Iriani Setyawati (Unknown)
Deny Suhernawan Yusup (Unknown)

Article Info

Publish Date
28 Mar 2023

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

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Journal Info
METAMORFOSA Journal of Biological Sciences
Website

Abbrev

metamorfosa

Publisher

Universitas Udayana

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology

Description

METAMORFOSA is an electronic scientific journal published periodically by the Master of Biology Udayana University, which includes scientific works in the field of ...