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All Journal Biopendix: Jurnal Biologi, Pendidikan dan Terapan BIOEDUPAT: Pattimura Journal of Biology and Learning
Kilmanun, Juliana Ester
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Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology

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Growth performance of white seabass (Lates calcarifer) cultivated using recirculation aquaculture system (RAS) Sahusilawane, Helena Afia; Metungun, Jacomina; Fitrinawati, Henny; Kilmanun, Juliana Ester
BIOEDUPAT: Pattimura Journal of Biology and Learning Vol 4 No 2 (2024): Bioedupat : Pattimura Journal of Biology and Learning
Publisher : Program Studi Pendidikan Biologi, Pascasarjana, Universitas Pattimura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/bioedupat.v4.i2.pp214-219

Abstract

White seabass (Lates calcarifer) is classified as a fishery commodity that has a high selling value with an easy cultivation method. However, water quality is an obstacle in the fish cultivation process. Therefore, it is necessary to implement an appropriate cultivation system, including a recirculation aquaculture system (RAS). RAS is reuse of water that has been used through a filter so that fish with high growth and survival are obtained. The aim of the research was to analyze the growth performance of white seabass cultivated with RAS. The research was conducted at the Mariculture Laboratory of the Aquaculture Technology Study Program, Tual State Polytechnic of Fisheries in June to August 2024. The research was used a descriptive type with initial length measurements (4 and 5 cm) and was repeated 3 times. A total of 10 fish were kept in a hapa in a rearing tank and equipped with RAS using sand and charcoal filters. Growth performance were measured included body length, body weight, growth rate, and survival rate. The research results show that the RAS system determines the growth performance of white seabass. This is evidenced by the increasing average increase in length and body weight. At an initial length of 4 cm, the average increase was 6.5 cm and 4.25 g, while at an initial length of 5 cm it was 8.3 cm and 6.5 g. The average survival rate was 75% at an initial fish size of 4 cm and 86% at an initial fish size of 5 cm. Thus, the RAS system can be applied in white seabass cultivation.
PENGUNAAN EKSTRAK TOMAT SEBAGAI INOVASI PAKAN ALAMI UNTUK MENINGKATKAN KUALITAS WARNA IKAN BADUT MERAH MARUN (Amphiprion biaculeatus, Bloch 1790) Sahusilawane, Helena Afia; Kilmanun, Juliana Ester; Beruatwarin, Tiara Marlina; Rahawarin, Jenni Paulin Loraene
BIOPENDIX: Jurnal Biologi, Pendidikan dan Terapan Vol 10 No 2 (2024): Biopendix: Jurnal Biologi, Pendidikan & Terapan
Publisher : Program Studi Pendidikan Biologi FKIP Unpatti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30598/biopendixvol10issue2page224-233

Abstract

Background: Amphiprion biaculeatus, Bloch 1790 is one of the exported marine ornamental fish commodities. To meet export demand, must be from cultivation fish. However, the problem faced in cultivation conditions is that the color of the fish is not as attractive as in nature. This is due to uniform feeding. Therefore, alternative solutions are needed to enrich feed with natural pigment sources. One of them is red ripe tomato extract with high carotene content. Methods: The study used a completely randomized design with extract concentration treatments (0, 25%, 50%, 75%). Natural feed is made by coating, then applied to non-breeder sized fish obtained from BPBL Ambon. Extract efficiency parameters were measured through color characteristics, carotene content in the skin and fins, total length and body weight. The data obtained were analyzed using ANOVA and continued with the DMRT test at a significance level of 95%. Results: The results showed that tomato extract had a significant effect on color characteristics, carotenoid content, total length and body weight in maroon clownfish. The concentration of tomato extract which had the highest value for all parameters measured was in treatment 75% : 75 mL tomato extract + 10 mL binder + 15 g commercial feed). Conclusion: Tomato extract has the potential as a natural feed that can improve the color quality of A. biaculeatus with a usable concentration of 75%.
Co-Authors Beruatwarin, Tiara Marlina Fitrinawati, Henny Metungun, Jacomina Rahawarin, Jenni Paulin Loraene Sahusilawane, Helena Afia