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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) Jurnal Perikanan Universitas Gadjah Mada
Ervina Indrayani
Cenderawasih University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Immunology & microbiology Materials Science & Nanotechnology Physics

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Length-Weight Relationship and Condition Factors of Some Commercial Fish from Youtefa Bay, Jayapura City, Indonesia Ervina Indrayani; Baigo Hamuna; Lalu Panji Iman Agamawan
Jurnal Perikanan Universitas Gadjah Mada Vol 25, No 1 (2023)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jfs.79653

Abstract

In this study, we used data on the length and weight of fish to determine the length-weight relationship and condition factors of eight commercial fish targeted by traditional Papuan fishers in Youtefa Bay, Papua Province, Indonesia. The fish species were Lutjanus fulvus, Gerres oyena, Parupeneus barberinus, Siganus spinus, Siganus canaliculatus, Pelates quadrilineatus. Mugil cephalus, and Hemiramphus far. A total of 245 fish specimens were collected from Papuan fishermen from January to March 2020. The total body length and weight ranged from 15.2 to 32.1 cm (average 20.26±3.73 cm) and 42.72 to 371.86 gr (average 124.10±52.45 gr), respectively. The b value ranged from 2.692 to 3.079, with the coefficient of determination (R2) ranging from 0.902 to 0.995. The growth patterns of the eight fish species were allometric (b≠3; t-test<t-tab), where L. fulvus (2.824), P. barberinus (2.914), S. canaliculatus (2.989), P. quadrilineatus (2.958), M. cephalus (2.910), and H. far (2.692) have negative allometric growth (b<3). In contrast, G. oyena (3.060) and S. spinus (3.079) have positive allometric growth (b>3). The relative condition factor and Fulton condition factor values ranged from 0.874 to 1.201 (average 0.999±0.321) and 0.204 to 2.726 (average 1.612±0.515). M. cephalus had a higher relative condition factor, while L. fulvus had a higher Fulton condition factor compared to other fish species.
Characterization of Bioactive Compounds and Stability of Mangrove Extract Rhizopora Sp. Dirk Y. P. Runtuboi; Ervina Indrayani; Imam Mishbach; Gabriela Olivia Karisoh
Jurnal Penelitian Pendidikan IPA Vol 10 No 10 (2024): October
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i10.8674

Abstract

In recent decades, bioactive compounds contained in plants have increasingly attracted the attention of researchers. This is because these bioactive compounds have the potential to be used as raw materials in the manufacture of health products, medicines, and cosmetics. However, in developing products based on bioactive compounds in Rhizopora sp. mangroves, sufficient knowledge about these compounds is needed. The main objective of this study was to identify bioactive compounds and evaluate the stability of Rhizopora sp. mangrove extract obtained from Youtefa Bay area, Jayapura City. The methods used include mangrove leaf sampling, maceration extraction using methanol, followed by fractionation and phytochemical tests to detect the content of active compounds. Data analysis was performed using UV and IR spectroscopy. The results showed that the isolated Rhizophora sp. mangrove leaf extract obtained from Youtefa Bay waters contained several bioactive compound activities such as alkaloid, flavonoid, phenolic, and saponin bioactive compound groups in methanol solvents.  In conclusion, mangrove Rhizophora sp. from Youtefa Bay has great potential as a source of bioactive compounds that can be further developed in various commercial products.
Co-Authors Baigo Hamuna Gabriela Olivia Karisoh Imam Mishbach Riri Trinanda Runtuboi, Dirk Yanes