Jurnal Aquatik

EFFECT OF DIFFERENT TYPES OF FEED ON THE GROWTH OF MUD CRABS (Scylla serrata)

2025-04-04T02:29:07+00:00

The research was conducted in Tarus Village (Manikin Beach), Kupang Tengah District, Kupang Regency. The location of this research was determined by considering that the waters in Kupang Regency, especially Tarus Village (Manikin Beach). The treatments tested were the provision of different types of feed, Treatment A: Feeding snails, Treatment B: Feeding mangrove shells, Treatment C: Feeding trash fish (tembang fish), Treatment D: Feeding chicken stomachs. The parameters measured in this study were absolute weight, daily weight and survival. Based on the research and research results the provision of different feeds significantly affected growth, both weight, but did not affect survival and the best feed for growth was shown in treatment A with the use of snail feed which resulted in absolute weight growth of 29.00 g, daily growth of 0.48 g% / h. While for survival reached 100% all treatments.

PERBANDINGAN TUBIFEX SP DAN CHIRONOMUS SP DALAM PAKAN TERHADAP PENINGKATAN WARNA IKAN KOMET (Carassius auratus) COMPARISON OF TUBIFEX SP AND CHIRONOMUS SP ON INCREASING THE COLOR OF COMET FISH (Carassius auratus)

2025-04-04T02:35:49+00:00

A 30-day nutritional experiment was conducted at the Aquaculture Research Laboratory, Faculty of Fisheries and Marine Sciences. The study employed a Completely Randomized Design (CRD) with three experimental diets: (A) exclusive Tubifex sp. meal, (B) equal combination of Tubifex sp. and Chironomus sp. meals (1:1 ratio), and (C) exclusive Chironomus sp. meal, each replicated three times. Key performance indicators including skin pigmentation intensity, body weight gain, and linear growth were measured in goldfish (Carassius auratus). Statistical analysis revealed significant dietary effects (p<0.05) on all measured parameters. The blended diet (Treatment B) demonstrated superior efficacy, producing both the most vibrant coloration and maximal growth metrics among test groups. These findings suggest that balanced inclusion of both worm meals synergistically enhances ornamental quality and growth performance in this commercially valuable fish species.

Keywords: Chironomus sp, C. auratus, Tubifex sp.

PERBANDINGAN PERTUMBUHAN KERANG DARAH (Anadara granosa) DI PERAIRAN MOTADIKIN DAN KLETEK KABUPATEN MALAKA

2025-05-06T02:50:23+00:00

The research was carried out for 3 months starting from April to July 2024, at two different locations, namely Motadikin waters and Kletek waters, Central Malaka District, Malacca Regency. The parameters observed in this study were growth in absolute weight, absolute length, survival and water quality. Comparison of the growth and survival of blood cockles can be seen that the highest growth in absolute weight and absolute length is found in Kletek waters and the lowest in Motadikin waters.

PEMBERIAN BEKICOT (Achatina fulica) TERHADAP PERTUMBUHAN IKAN KAKAP PUTIH (Lates calcarifer)

2025-05-06T02:56:05+00:00

This research was carried out at BBIP Tablolong, Kupang Regency for 60 days. The aim of this research was to determine the effect of feeding snails (Achatina fulica) on the growth of white snapper (Lates calcarifer). The design used was RAL with 4 treatments and 3 repetitions, namely (A) f999 pellets 5% of the biomass weight (control), (B) snails 5% of the biomass weight, (C) snails 10% of the biomass weight, (D) snails 15% of the biomass weight. The parameters measured in this study are Absolute Weight Growth, SGR, SR, FCR, Feed Efficiency. The research results prove that treatment (B) Snails 5% of biomass weight is the best dose for the growth of white snapper with an absolute weight growth rate of 8.3 g, SGR reaching 0.048%g/day, SR of white snapper 90%, FCR 1.36 g, and feed efficiency value reaching 73.44%.

Keywords: Snail, sea bass, growth

STUDI NILAI TAMBAH RUMPUT LAUT (Kappaphycus sp) MENJADI ALKALI TREATED COTTONII (ATC)

2025-05-29T13:47:31+00:00

This study aims to analyze the added value resulting from processing Kappaphycus sp seaweed into Alkaline Treated Cottonii (ATC) and to evaluate the economic aspects of the process. The ATC processing process is carried out through boiling seaweed with a solution of potassium hydroxide (KOH) at a temperature of 80–85°C for two hours, followed by washing, cutting, and drying. The results of the study showed that the processing of dried seaweed into ATC produced an added value of Rp 67,000 per kilogram of dried seaweed, with a total added value for 100 kg of seaweed reaching Rp 7,210,000. This added value reflects a significant increase in the selling price of processed products compared to the sale of seaweed in raw form. Financial analysis showed a gross profit of IDR 5,900,000, with a break-even point reached in the production of around 28.45 kg of ATC. This study concludes that processing seaweed into ATC not only increases the economic value of the product, but also opens up opportunities for product diversification such as pure carrageenan which is in great demand in the international market. Therefore, processing seaweed into ATC can provide great economic benefits for coastal communities and can improve the welfare of business actors through the added value produced.

Keywords: Alkali Treated Cottonii (ATC), economics, Kappaphycus sp, carrageenan, added value, processing

PENGARUH KEPADATAN BERBEDA TERHADAP PERTUMBUHAN DAN KELANGSUNGAN HIDUP BENIH IKAN PATIN YANG DI PELIHARA DALAM WADAH HAPPA DI BBIS NOEKELE KABUPATEN KUPANG

2025-05-29T13:58:05+00:00

This study aims to determine the effect of different stocking densities on the growth and survival of striped catfish (Pangasius sp.) fry reared in hapa net enclosures at the Central Fish Hatchery (BBIS) Noekele, Kupang Regency. The study employed a Completely Randomized Design (CRD) with three different stocking densities: 90, 120, and 150 fish per hapa, each replicated three times. The observed parameters included survival rate, absolute weight gain, absolute length gain, and water quality (temperature, pH, dissolved oxygen, and ammonia). Data were analyzed using ANOVA to assess the significance of differences among treatments, followed by the Least Significant Difference (LSD) test if significant differences were found. The results showed that different stocking densities had a significant effect on the survival and growth of catfish fry. ANOVA results indicated that stocking density had a significant effect (p < 0.05) on survival rate, but not on absolute weight gain or absolute length gain. The density of 90 fish per hapa yielded the best results, with higher survival rates, weight gain, and length gain compared to the densities of 120 and 150 fish per hapa. This condition suggests that at lower densities, competition for oxygen, space, and feed is reduced, thereby supporting more optimal growth. Therefore, a stocking density of 90 fish per hapa is recommended as an effective cultivation strategy to enhance the performance of catfish fry in the region.

Keywords: Cultivation of hapa, catfish, density, growth, survival rate

GAMBARAN KONDISI KUALITAS AIR UNTUK RENCANA PENGEMBANGAN BUDIDAYA TAMBAK UDANG VANAME (Litopenaeus vannamei) DI PESISIR DESA TOENEKE KABUPATEN TIMOR TENGAH SELATAN

2025-05-29T14:08:17+00:00

Vaname shrimp farming (Litopenaeus vannamei) became one of the alternative fisheries production that is growing rapidly in this region, because promising prospects and profits. The purpose of this study was to determine description of water quality conditions required for the development of vaname shrimp (Litopenaeus vannamei) aquaculture in coastal Toineke Village, South Central Timor District. This study was conducted in coastal waters South Central Timor District (TTS), Kualin District, in Toineke Village for two weeks. Based on the results of water quality research it can be concluded that location A has a pH value of 4.9, dissolved oxygen of 0.6 ppm, nitrate of 0.005 mg/l and location B pH value of 5.34, dissolved oxygen of 0.59 ppm, nitrate of 0.009 mg/l, water quality that has been measured at location A and location B indicates that both locations do not qualify as vaname shrimp farming sites. Based on the research results obtained there are several water quality parameters that do not meet the optimal threshold. Researchers suggest water quality management.

Keywords: Vaname shrimp farming (Litopenaeus vannamei).