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All Journal ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua
Indriyani, Ervina
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Agriculture, Biological Sciences & Forestry

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Daya dukung kualitas air harian untuk pertumbuhan ikan nila (Oreochromis niloticus) dalam kolam budidaya di Balai Benih Ikan Lokal (BBIL) Koya Barat Distrik Muara Tami Kota Jayapura Mantayborbir, Vyona; Indriyani, Ervina; Bukit, Elysabeth Anggreini
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 6 No 2 (2023): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Volume 6 No. 2 Edisi Desember
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v6i2.3461

Abstract

This research aims to determine the daily carrying capacity of water quality in tilapia cultivation ponds at the West Koya Local Fish Seed Center (BBIL), Muara Tami District, Jayapura City. This research used two earthen ponds measuring 25 x 50 m, water depth 30-50 cm, water volume 100 L in one pond. Tilapia fish (Oreochromis niloticus) with an average length of 20 cm and weight of 243 grams were used in this study. Feed at a rate of 3% of fish biomass is given three times a day. The water quality parameters observed in this study were water temperature measured using a digital thermometer, dissolved oxygen using a DO meter DO 30N, water acidity using a pH meter, pH-240L, SERA aqua-test kit used to measure ammonia and nitrate. This research shows that the water quality parameters observed are normal according to the needs of tilapia fish. So it can be concluded that the water quality in the tilapia cultivation ponds at the West Koya Local Fish Seed Center (BBIL), Muara Tami District, Jayapura City is controlled and suitable for the growth and survival of the cultivated tilapia (Oreochromis niloticus).
Pemanfaatan Rumput Laut Kappaphycus Sp. Di Kepulauan Yapen Papua Sebagai Bahan Bioplastik Dengan Penambahan Kitosan Simamora, May Tree; Indriyani, Ervina; Runtuboi, Dirk Y.P.; Mishbach, Imam; Gabriela O.K; Fabianus Batlery
ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Vol 6 No 2 (2023): ACROPORA: Jurnal Ilmu Kelautan dan Perikanan Papua Volume 6 No. 2 Edisi Desember
Publisher : Cenderawasih University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31957/acr.v6i2.3506

Abstract

Indonesia produces 64 million tons of plastic waste every year and 3.2 million tons of it is thrown into the sea, so research needs to be done to create plastic that is environmentally friendly and easily decomposed (bioplastic). Alginate and carrageenan are polysaccharides produced from seaweed which have potential as materials for making bioplastics. This research aims to determine the effect of alginate and carrageenan on the quality, physical properties, mechanical properties and biodegradability of carrageenan-chitosan bioplastics with glycerol plasticizer. Carrageenan is obtained from extraction of Kappaphycus sp. who comes from the Yapen Islands, Papua Province. Making a carrageenan bioplastic solution by dissolving carrageenan flour (1; 1.5; 2; 2.5 grams) and 5 ml of glycerol in 100 ml volume of vingga distilled water then heating using a magnetic stirrer for 15 minutes at 90oC. The process of making a chitosan solution is by dissolving 2 grams of chitosan, 3 ml of glycerol, and 1 ml of glacial acetic acid in 94 ml of distilled water then heating with a magnetic stirrer for 10 minutes. The research results show that. The best concentration of carrageenan in the alginate-carrageenan composite bioplastic is 1.5 grams because it has physical and mechanical properties that meet the Japanese Industrial Standard and SNI 7188.7:2016 except for water resistance.
Co-Authors Bukit, Elysabeth Anggreini Fabianus Batlery Gabriela O.K Imam Mishbach Mantayborbir, Vyona R. Rijanta Simamora, May Tree