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Journal : Journal of Fisheries

Growth and Mortality Models of Mozambique Tilapia (Oreochromis mossambicus; Peters, 1852) Wildly Enter Inside the Fish Farming Ponds in Tarakan City, North Kalimantan Salim, Gazali; Mujiyanto, Mujiyanto; Sugianti, Yayuk; Suryanti, Suryanti; Zahidah, Zahidah; Nawir, Daud; Hartinah, Sitti; Nurjanah, Nurjanah; Dewi, Rose; Iranda, Rama; Arief, Mochamad Candra Wirawan; Putri, Masayu Rahmia Anwar; Rahman, Abdur; Indarjo, Agus; Ransangan, Julian; San Jose, Ariel E; Rozi, Rozi
Jurnal Ilmiah Perikanan dan Kelautan Vol. 16 No. 2 (2024): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v16i2.55472

Abstract

Graphical Abstract Highlight Research The results of this research showed that allometric growth in males and females had negative allometric growth characteristics. The growth condition index in male and female fish is dominated by thin and fat body shapes.The maximum length growth (L∞) and growth speed of males is higher than that of females. Total mortality and fishing mortality for males is higher than for females, but natural mortality for females is higher than for males. The exploitation rate of males and females is in the Under-exploitation category because the E value is <0.5. 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 emphasises the complex biology of tilapia and its untapped potential in the aquaculture pond system ecology in Tarakan.
Smart Automation of Salinity and Turbidity for Sustainable Aquaculture of Harpodon nehereus Prasetia, Abdul Muis; Gazali Salim; Linda Sartika; Mujiyanto Mujiyanto; Julian Ransangan; Ariel E San Jose; Sitti Hartinah; Retno Hartati; Rozi
Jurnal Ilmiah Perikanan dan Kelautan Vol. 18 No. 1 (2026): JURNAL ILMIAH PERIKANAN DAN KELAUTAN
Publisher : Faculty of Fisheries and Marine Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/jipk.v18i1.78793

Abstract

Graphical Abstract   Highlight Research 1. Model of growth and mortality of otek fish (Netuma thalassina (Rüppell, 1837)) in Tarakan waters, North Kalimantan. 2. Growth, mortality, and reproductive model of Bombay duck (Harpodon nehereus, Hamilton 1822) in Juata Laut waters, North Kalimantan. 3. Growth pattern and the condition index of nomei fish Harpodon nehereus captured with mini trawl in Tarakan Waters. 4. Characteristics of Model Growth and Mortality of White Shrimp (Penaeus merguiensis de Man 1888) in The Estuaria of Bengara, Regency Bulungan. 5. Preliminary study on the domestication of giant freshwater prawn, Macrobrachium rosenbergii (De Man, 1879) from North Kalimantan, Indonesia.   Abstract Automated water quality monitoring systems are urgently needed to ensure fish health and maintain aquaculture product quality. This study develops an adaptive microcontroller-based control system that automatically regulates salinity and turbidity to support the sustainable aquaculture of Harpodon nehereus. This study developed and evaluated a microcontroller-based system for automated regulation of salinity and turbidity in H. nehereus aquaculture ponds. Methods involved environmental observation, sensor calibration, system design, and field validation of a digital sensor-based water quality controller, tested in a pilot estuarine pond to keep salinity (~17‰) and turbidity (20-30 NTU) within optimal ranges. Calibration results obtained through linear regression analysis showed strong correlation with standard instruments (R² = 0.94 for salinity and R² = 0.93 for turbidity). Field trials demonstrated effective maintenance of turbidity within 22-27 NTU for 24 hours, and stepwise tests confirmed the system’s ability to track real-time salinity shifts. These results indicate that the microcontroller-based system effectively stabilises key water parameters for H. nehereus aquaculture and performs more efficiently than open systems. As one of the first integrated systems designed for automated salinity and turbidity regulation in estuarine aquaculture, it offers a practical and scalable approach to improve sustainability and ensure the food security of coastal fisheries. Future work should extend control to pH, DO, and temperature, refine calibration with predictive algorithms and wireless connectivity so that it can be used more widely in precision aquaculture with fish stocks.      
Co-Authors Abda Abda Abdul Muis Prasetia, Abdul Muis Abdur Rahman Abi Fadila Abi Fadila Aenah, Siti Afies Rudit Setyono Agung, Rahmad Agus Indarjo Agus Riyanto Ahmad Faruk Ahmad Muhajirin Ahmad Muhajirin Akhmad Mukhlisin Alipah, Susi Aminudin, Rizqi Apriari Fr, Dewi Aprilia, Yuyun Ardiati, Shinta Arief, Mochamad Candra Wirawan Ariel E San Jose Asdar Basukiyatno Basukiyatno . Basukiyatno . Basukiyatno, Basukiyatno Beni Habibi Budi Mardikawati Chamami, M Rikza Damanik, Fritz Hotman Syahmahita Daryanto Dewi Amaliah Nafiati Dewi Apriani Dewi Apriani Fr Dewi Sartika Djadir Durotun Mahfudzoh Efani, Dita Farhiati, Endang Fathonah, Annisya Syamsah Hizyar Ferdi Zulkarnain Fitrawan, La Ode Muhammad Furaida, Heri Gazali Salim habel, mardia Hadi Harnoto Handayani, Mugih Hanung Sudibyo, Hanung Hastin Budisiwi Henri Prayogo Heri Jatmiko Herianti, Herianti Hidayat, Muhammad Pasa Ihda Rosdiana Imam Ghazali Iranda, Rama Jalil, Intan Permatasari Jatmiko, Heri Julian Ransangan Junaedi Abdillah, Junaedi Kartiningsih, Nur Keumala, Muhammad Faiz Khairi, Fathul Khodijah Khodijah khusnul khotimah Kusrina, Titi Lismina, Lismina M Aris Rofiqi M.Aslan, La Ode Mahfudzoh, Durotun Masayu Rahmia Anwar Putri, Masayu Rahmia Anwar Maufur Maufur MR, Muhammad Fauzan. Muhamad Yasin MUHAMMAD ALI Muhammad Fikri Haikal Muji Rahayu Mujiyanto Mujiyanto Munasikhah, Munasikhah Mutmainah A., Nur N. Nurjanah Nasiroh Nasiroh Nasiroh, Nasiroh Nasucha, Muntoha Nawir, Daud Noor Zuhry, Noor Novalia Novalia Novalia Novalia Nugraeni, Christine Dyta Nurhidayat, Surawan Pascayantri, Asniar Patimah, Lilis Pinasti, Dian Wahyu Purnami, Desy Eka Purwanto, Burhan Eko Purwo susongko Rahayu, Bangun Sri Ransangan, Julian Renie Tri Herdiani, Renie Tri Retno Hartati Roberto Romansah, Ruri Rose Dewi Rozi Rozi Rozi, Rozi Salim, Nasiatul Aisyah San Jose, Ariel E Sartika, Linda Shaefur Rokhman, Moh Singgih Prastawa Sri Mulyani Sri Wahyuni Sudiryo, Sudiryo Sudono - Sulistiyarini, Endang Sulviati Fidia Ningsih Suriswo Suriswo , Suriswo Suryanti Susanto Susanto Sutji Muljani Taufiqulloh Taufiqulloh Tiara Suci Apriliani, Tiara Suci Tri Hatyanto Undiarsih, Indit Urip Rahayu Slamet Veragita, Elsa wahyuni wahyuni Warti, Warti Wasono, Suwondo Widyaningsih, Tri Wijaya, Rawiyatin Windiawan, Windiawan Yasin, Muhamad Yayuk Sugianti Yoga Prihatin Zahidah Zahidah, Zahidah