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All Journal Agrikan: Jurnal Agribisnis Perikanan JURNAL RISET DIWA BAHARI
Tri Hidayani, Mesalina
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Environmental Science Immunology & microbiology

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Food Habits of Red Snapper Lutjanus malabaricus in Pinrang Waters L Rapi, Nuraeni; Tri Hidayani, Mesalina; Djumanto, Djumanto; Murwantoko, Murwantoko; Alifia, Frida
Agrikan Jurnal Agribisnis Perikanan Vol. 15 No. 1 (2022): Agrikan: Jurnal Agribisnis Perikanan
Publisher : Fakultas Pertanian, Universitas Muhammadiyah Maluku Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1281.101 KB) | DOI: 10.52046/agrikan.v15i1.1211

Abstract

Pinrang Regency is included in the scope of Indonesian waters which has the potential to catch red snapper. Snapper is an export commodity that has a high market price with a selling value of around Rp. 70,000 / kg. The aim is to determine the size structure, gonad maturity and sex ratio. This research was conducted from March to July 2019 in the waters of Pinrang Regency. The observed aspects are size structure, gonad maturity and sex ratio. The results obtained as many as 532 fishes, of which 226 males and 306 females. The total length ranges from 19.5 to 69.5 cm with the sex ratio in a balanced state. Gonadal maturity is 36% under immature conditions and 64% are mature gonads. The size of the first time maturity is 29 cm in males and 37 cm in females.
Karakteristik Morfometrik Juvenil Ikan Baronang Totol (Sigannus guttatus) pada Akuakultur Multi Tropik Berbasis Feeding Rate Heriansah, Heriansah; Rukmini Kustam, Sri; Sahriyanti , Andi; Tri Hidayani, Mesalina
Jurnal Riset Diwa Bahari (JRDB) Volume 2, Nomor 1, 2024
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat (LPPM) Institut Teknologi dan Bisnis Maritim Balik Diwa

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.63249/jrdb.v2i1.26

Abstract

Information on morphometrics has been widely used for catches. This study aims to determine the morphometric characteristics of rabbitfish in a multi-trophic system cultivation based on feeding rate. Rabbitfish are maintained in an integrated manner with green mussels, sea urchins, and seaweed. The study was conducted for 6 weeks at the Laboratory of the Balik Diwa Maritime Technology and Business Institute, Makassar. Three feeding rate treatments of 5%, 7.5%, and 10% each with three replications were given to rabbitfish with a frequency of 4 times a day. During maintenance, a closed water circulation process was carried out and continuous aeration was provided in each container. The results showed that the total length at feeding rates of 5%, 7.5%, and 10% were 5.3 cm, 7.1 cm, 8.1 cm, respectively, and the standard length was 4.1 cm, 5.8 cm, and 6.7 cm, respectively. Meanwhile, the height of each body was 1.8 cm, 2.1 cm, and 2.6 cm. Analysis of variance showed that these three morphometric variables were significantly affected by feeding rate, and the three levels of feeding rate were significantly different (P<0.05). Water quality during maintenance was in the range that could be tolerated by rabbitfish. Temperature was in the range of 26.0-28.6°C, salinity 25.1-28.5 ppt, dissolved oxygen 5.2-7.1 mg/L, pH 7.6-8.0 and ammonia 0.032-0.095 mg/L. The morphometric characteristics of rabbitfish in multi-trophic system cultivation increased significantly along with the increase in feeding rate.
Co-Authors Alifia, Frida Djumanto Djumanto Heriansah, Heriansah Murwantoko . Nuraeni L Rapi Rukmini Kustam, Sri Sahriyanti , Andi