Growth and Mortality Models of Mozambique Tilapia (Oreochromis mossambicus; Peters, 1852) Wildly Enter Inside the Fish Farming Ponds in Tarakan City, North Kalimantan

Gazali Salim, Mujiyanto Mujiyanto, Yayuk Sugianti, Suryanti, Zahidah, Daud Nawir, Sitti Hartinah, Nurjanah, Rose Dewi, Rama Iranda, Mochamad Candra Wirawan Arief, Masayu Rahmia Anwar Putri, Abdur Rahman, Agus Indarjo, Julian Ransangan, Ariel E.San Jose, Rozi

Research output: Contribution to journalArticlepeer-review

Abstract

Exploring the length-weight relationship of fish and characterising growth parameters is essential in fisheries as they offer fundamental biology and population dynamics data to establish good management strategies for fisheries resources. This study examines the growth and mortality patterns of Oreochromis mossambicus. Data was collected between September and December 2022 using quantitative descriptive survey sampling. The study involved 20 repeats and deliberate random sampling of 30-50 fish per sample, emphasising total length, weight, and sex parameters. Based on 726 samples of O. mossambicus (352 fish identified as male and 374 fish identified as female). The growth model study revealed the typical negative allometric growth for both sexes (male and female). Male individuals attained a length of 33.449 cm after 37 days has a growth trend ± 0.3265 year-1, and females reached 21.150 cm in 34 days with a growth rate around 0.3135 year-1, as per the von Bertalanffy growth model. There were complex mortality patterns, with males contributing to most total deaths. This study emphasizes the complex biology of tilapia and its untapped potential in the aquaculture pond system ecology in Tarakan.

Original languageEnglish
Pages (from-to)422-437
Number of pages16
JournalJurnal Ilmiah Perikanan dan Kelautan
Volume16
Issue number2
DOIs
Publication statusPublished - 23 Oct 2024

Keywords

  • Allometric growth
  • Fish farming
  • Fisheries management
  • Length-weight

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