Jurnal Aquatik

Pengaruh Kepadatan Terhadap Pertumbuhan dan Kelulushidupan Juvenil Kerang Mutiara (Pinctada margaritifera) Diperairan Desa Tanah Merah, Kabupaten Kupang

2025-01-16T02:05:44+00:00

Pearl mussels are included in commodities that almost all parts of the body can be utilized. Starting from the pearls produced, pearl clam shells, and pearl clam meat have a selling value in the market. In addition, pearl mussels (Pinctada margaritifera) have a delicious taste and have a high enough protein content to become a target for public consumption. The cultivation of this type of pearl mussel is still very little, and the utilization of this type of pearl mussel still relies on nature, this certainly has the potential for a decrease in its population in nature. This study aims to determine the effect of density on the growth rate and survival of pearl mussel juveniles (Pinctada margaritifera). This study used treatment A (8 individuals/basket), treatment B (12 individuals/basket), treatment C (16 individuals/basket), treatment D (20 individuals/basket). The results of the analysis conducted showed no significant difference (P> 0.05) in the growth and survival of pearl mussels (Pinctada margaritifera). The research was conducted for 2 months in the waters of Tanah Merah Village, Kupang Regency.

Keywords: Density, Pearl mussels (Pinctada margaritifera), Absolute Growth, Survival

Gambaran Pertumbuhan dan Kelangsungan Hidup Lobster Mutiara (Panulirus Ornatus) Di Perairan Mulut Seribu Kabupaten Rote Ndao

2025-01-16T02:07:59+00:00

The cultivation of pearl lobster (Panulirus ornatus) needs to be observed growth rate and survival which can indicate a success rate during rearing. This can be used by the surrounding community as an effort to support the community's economy. To find out the picture of the growth rate, weight, and survival of pearl lobsters cultivated in Thousand Mouth. Observed parameters growth rate, weight and survival of pearl lobster. Observation parameter data in the form of growth, survival and water quality. The data obtained in the form of growth with the results of Baby lobster showed K1 0.072 gs, K2 0.063 gs, K3 0.055 gs, K4 0.057 g and K5 0.074. While the daily growth rate for lobster enlargement is K1 1.356 gs, K2 1.289 g, K3 1.422 g, K4 1.4 g and K5 1.333 g. But at graduation the results of Baby lobster showed K1 95%, K2 95%, K3 96%, K4 98% and K5 55%. While lobsters for rearing maintenance are K1 87%, K2 79%, K3 9%, K4 76% and K5 82%. The results showed that the growth rate of weight / day in lobsters enlargement size was greater than baby lobsters. While baby lobsters have a better survival rate than lobsters of enlargement size, this is due to the nature of cannibalism among adult lobsters when experiencing a moulting period. And the temperature and salinity of seawater still meet the feasible value of pearl lobster cultivation, which is the temperature range during the study of 26-27 ° C, where the minimum temperature value is 26 ° C and the maximum temperature value is 27 ° C. For salinity values ranging from 34-35 ppt, so that the quality of water in the mouth waters of a thousand said is suitable for pearl lobster cultivation.

Keywords: Growth, Survival, Pearl Lobster

UJI EFEKTIVITAS MINYAK CENGKEH TERHADAP TRANSPORTASI KERING DENGAN KEPADATAN TINGGI PADA BENIH IKAN KAKAP PUTIH (Lates calcarifer)

2025-01-16T02:08:56+00:00

In an effort to carry out cultivation activities, the obstacle is the availability of seeds is not met, so it is necessary to bring in seeds from other areas. To support cultivation activities, an effective transportation method is needed, one of which is dry system transportation or without water media. By carrying out dry transportation, it can save costs, reduce fish stress, and increase the number of transportation. This study was conducted using a completely randomized design (CRD) with 3 treatments and 3 replications, with the test organism being 5-6 cm white snapper seeds. The treatments tested were different densities, namely treatment A density of 10 fish, treatment B density of 15 fish, and treatment C density of 20 fish. Fish transportation was carried out with previous fish anesthesia, using commercial clove oil anesthetic with a dose of 0.10 ml / liter of seawater. Based on observations of transportation for 1 hour of travel, treatment C was the best treatment, namely with an inductive time of 4 minutes, a duration of unconsciousness of 1 hour, and a sedative time of 18 minutes, resulting in a post-transportation survival rate of 78% and a final maintenance survival rate of 76%. The use of clove oil is effective in maintaining the survival rate after dry transportation and after the end of the research on white snapper (Lates calcarifer) seeds.

Keywords: Clove oil, density, life, transportation of dry systems, white snapper

Pemeliharaan Cacing Sutra (Tubifex sp) dengan Dosis Pakan Organik yang Berbeda Menggunakan Sistem Resirkulasi

2025-01-16T02:09:41+00:00

This research lasted for 21 days and took place at the Lewa Fish Seed Center (BBI), Lewa District, Lewa Paku Village, East Sumba Regency, East Nusa Tenggara Province. This research used a Completely Randomized Design (CRD) with 5 treatments and 3 replications consisting of treatment A as control, treatment B with organic feed dose = 5 g/container, treatment C with organic feed dose = 10 g/container, treatment D with feed dose organic = 15g/container and treat E organic feed dose = 20 g/container). The parameters observed in this study were absolute weight, absolute length and water quality. Data from the Anova test results on this parameter shows that the calculated F value (0.000) < F Table 5% (54.506) so it can be concluded that the treatment was given with different doses of organic feed, namely doses of 0 g/container, 5 g/container, 10 g/ container, 15 g/container and 0 g/container have a significant effect on absolute weight. The absolute growth parameters have a real influence so it can be concluded that the provision of organic feed has a real influence on producing weight and length growth of silk worms.

Keywords: Silk worms, organic feed, length, absolute growth

Pengaruh Penambahan Ubi Jalar (Ipomoea batatas) dan Ulva lactuca dalam Pakan terhadap Perubahan Warna dan Pertumbuhan Ikan Badut (Amphiprion percula)

2025-01-16T02:10:22+00:00

Saltwater ornamental fish have various species, many of which have been exported to various countries. One type of ornamental fish that can be kept in an aquarium is the clown fish (Amphiprion percula). However, clownfish tend to experience color fading when cultivated. This is caused by less than optimal food and lighting factors. The aim of this research is to determine the role of adding sweet potato flour (Ipomoea batatas) and ulva lactuca flour in feed to maintain the color of clownfish so that it remains as in nature and to support the growth of clownfish (Amphiprion percula). This research was carried out using four treatments and repeated three times, namely (1) F999 brand commercial feed, (2) 25% Ulva lactuca flour + 75% commercial feed, (3) 12.5% Ulva lactuca flour + 12% sweet potato flour .5% + 75% commercial feed, (4) 25% sweet potato flour + 75% commercial feed. The parameters observed include color measurementsRed Green Blue (RGB) which is then converted to a color modelHue Saturation Brightness (HSB) and also growth. The research results show that fish color analysis usesHue Saturation Brightness (HSB), changes in hue values tend towards yellow-orange colors. This shows similarities in maintaining color qualities found in clownfish in nature. However, there was no effect between different treatment on clown fish growth. The optimal dosage to achieve the desired fish color is to use 25% Ulva flour.

Keywords: Amphiprion percula, sweet potato, ulva lactuca, color

Pemanfaatan Kotoran Ternak dan Masa Panen yang Berbada terhadap Tingkat Pertumbuhan dan Biomassa Cacing Sutra (Tubifex sp).

2025-01-16T02:10:48+00:00

The research was conducted at the Lewa Fish Seed Center (BBI), Lewa District, Lewa Paku Village, East Sumba Regency, East Nusa Tenggara Province for 30 days. Completely Randomized Design (CRD) as the method used with research variables in the form of differences in harvest time consisting of 3 (three) treatments and replicates. The treatments in this study include Treatment A harvest day 10, Treatment B harvest day 20, Treatment C harvest day 30. Parameters observed in this study were absolute weight, biomass and water quality. The absolute biomass increase of silk worms (Tubifex sp.) from the results of this study was highest in treatment C (30th day harvest time) which was 50.7 g/container, followed by treatment B (20th day harvest time) 30.3 g/container and treatment A (10th day harvest time) 7.0 g/container. The longer the harvest period, the more the results obtained. The length of harvest time that produces silk worms (Tubifex sp.) with optimal protein content from the results of this study is in treatment B (20th day harvest time) which is 49.781%, followed by treatment C (30th day harvest time) 41.611% and treatment A (10th day harvest time) 40.347%.

Keywords: Absolute weight, biomassa, silk worm

Pengaruh Jarak Tanam yan Berbeda dari Garis Pantai di Perairan Desa Oenaek, Kabupaten Kupang, NTT terhadap Tingkat Pertumbuhan dan Kandungan Karaginan pada Rumput Laut (Kappaphycus alvarezii)

2025-01-16T02:11:15+00:00

For forty-five days, the study was carried out in the waterways of Oenaek Village, West Kupang District, Kupang Regency. Using five treatments and three replicates, the Randomized Group Design (RAK) approach was employed to plant seaweed seedlings at five different distances from the shoreline: fifteen, twenty-five, thirty, forty, and fifty meters. Seaweed growth rate, water quality, and carrageenan content were among the test factors. With a value of 3.1 g%/day, treatment B had the highest daily growth rate according to the data. Tests conducted in the laboratory of Undana's Faculty of Animal Husbandry, Marine and Fisheries revealed that treatment E had the highest carrageenan content, reaching 83.3%, while treatment C had the highest absolute growth, coming in at 142.9 g. In Oenaek Village, Kupang Regency, West Kupang District, the aim of this study was to assess the impact of planting distance from the shoreline on absolute growth and carrageenan content in seaweed (Kappaphycus alvarezii).

Keywords: Shoreline, spacing, carrageenan, growth, seaweed

Kombinasi Tepung Bunga Marigold (Tegates arecta) dan Tepung Labu Kuning (Cucurbita moschata Duch) Terhadap Tingkat Kecerahan Warna Ikan Komet (Carassius auratus)

2025-01-16T02:11:39+00:00

Fish color may be enhanced by caratenoids found in yellow pumpkin (Cucurbita moschata Duch) and marigold flower flour (Tegates arecta). The aim of this study was to determine the effect of feeding comet fish (Tagetes sp.) a mixture of marigold flour (T. arecta) and yellow pumpkin (C. moschata Duch) on the amount of brightness in their color. This study used the completely randomized design (CRD) method, with a design consisting of three replications and four treatments. According to the study's findings, treatment C, which included 80 g of marigold flower flour and 20 g of pumpkin flour per kilogram of feed, produced the best results. With a 63% survival rate, Treatment C produced an absolute weight gain of 4.3 g and a brightness value of 4.00.

Keywords: Marigold flowers, Carassius auratus, color quality, yellow pumpkin

Pengaruh Kedalaman yang Berbeda terhadap Pertumbuhan dan Kandungan Karaginan Rumput Laut Kappaphycus alvarezii

2025-01-16T02:12:02+00:00

One of the carrageenan-producing seaweed is Kappaphycus alvarezii which grows in the waters of NTT. The purpose of this study was to determine the carrageenan content and growth depth of K. alvarezii seaweed. From October 25, 2022 to December 15, 2022, research was conducted for 45 days in the waters of Tablolong, West Kupang Regency, East Nusa Tenggara Province. The longline approach was used to grow K. alvarezii seaweed. This method has three treatments and three replicates with treatment I 10 m apart, treatment II 20 m apart, and treatment III 30 m apart. Data on daily growth, absolute growth, carrageenan content, and water quality obtained from the results were then analyzed using ANOVA and added into graphs. The findings showed that the growth and carrageenan content of seaweeds in the sea around Tablolong Village were affected by different depths. K. alvarezii seaweed has the largest absolute growth in treatment C, which is 156 g, while treatment A has the lowest growth value, which is 135g. Treatment C also has the highest carrageenan content of 92.9%, while treatment A has the lowest carrageenan content of 67.7%. The results of this study indicate that the growth and carrageenan content of K. alvarezii seaweed is influenced by water depth.

Keywords: Kappaphycuz alvarezii, carrageenan, depth and growth

Analisis Pertumbuhan Anggur Laut (Caulerpa sp) dengan Metode Budidaya pada Kotak Plastik

2025-01-16T02:12:33+00:00

Caulerpa sp., a macroalgae from the Chlorophyceae class, represents a significant marine biological resource. In order to meet increasing market demands, sea grape cultivation has expanded through various methods, aiming to ensure production is not reliant on natural conditions. This study explores alternative cultivation by using container boxes and nutrient manipulation via fertilization to enhance the growth and production of Caulerpa sp. Specifically, the research examines the impact of different Bali Organiculture Guano liquid organic fertilizer dosages on Caulerpa sp. growth, identifying the optimal dosage for maximum growth. A completely randomized design with four treatments (A: control, B: 0.22 ml/l, C: 0.28 ml/l, D: 0.34 ml/l) and three replications were employed. Growth metrics were analyzed using ANOVA and post-hoc tests (BNT). Results indicated significant effects of fertilizer application on daily growth (A=1±0.00a, B=1±0.33b, C=2±0.00c, D=2±0.00d), absolute growth (A=38±0.88a, B=72±2.31b, C=85±2.65c, D=104±2.52d), Caulerpa length (A=1.2±0.03a, B=2.4±0.32b, C=3.0±0.07c, D=3.5±0.09c), and number of ramuli (A=22.4±0.21a, B=35.0±1.26b, C=43.0±4.31b, D=65.3±4.13c). The findings confirm that Bali Organiculture Guano liquid organic fertilizer significantly enhances the growth rate, absolute weight, length, and ramuli number of Caulerpa sp. in cultivation media.

Keywords: Caulerpa sp, box container, growth and organic fertilizer

Dampak Pencahayaan terhadap Kualitas Warna Ikan Nemo (Amphiprion percula)

2025-01-16T02:13:05+00:00

This study lasted for 30 days in the Laboratory of the Faculty of Animal Husbandry, Marine and Fisheries. This study used a Completely Randomized Design (CRD) with three treatments and three replications, consisting of treatment A lighting for 24 hours, treatment B lighting for 12 hours and treatment C without lighting. The parameters observed in this study were the brightness of the orange and white colors on the body of the nemo fish, as well as water quality data. The results showed that the quality of the orange and white colors on the body of the nemo fish increased with the length of lighting time. The results of the ANOVA test showed that the treatment of the length of lighting time had a significant effect on the brightness of the orange and white colors in the nemo fish. Treatment A with lighting for 24 hours showed the quality of the orange color with a score of 3.5 ± 0.17^b and white 3.0 ± 0.0^c which was better than treatments B and C. While the lowest quality of orange and white colors occurred in treatment C (without lighting) namely orange with a score of 2.2 ± 0.17^a and white with a score of 2.0 ± 0.0^a.

Keywords: Nemo fish, exposure time, orange, white.