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Journal of Aquaculture Science
Published by Universitas Airlangga
ISSN : 25500910     EISSN : 25794817     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Journal of Aquaculture Science (JoAS) merupakan media pertukaran informasi dan karya ilmiah pada bidang Akuakultur meliputi teknik budidaya, teknologi, reproduksi dan penyakit ikan pada budidaya. Secara umum, Journal of Aquaculture Science menerima artikel hasil penelitian review artikel dan komunikasi singkat. Journal of Aquaculture Science terbit 2 kali dalam setahun (April dan Oktober).
Arjuna Subject : -
Articles 212 Documents
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Effect of Chemical Compounds in Wastes from Essential Oil Distillation on the Activity of E.coli Mai Anugrahwati; Wiyogo Prio Wicaksono; Rizqy Nurlestari
Journal of Aquaculture Science Vol 2 No 1 (2017): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v2i1.17

Abstract

Effect of chemical compounds in the wastes of essential oil distillation including lime leaves, lemongrass leaves, ylang-ylang flower, and coriander seed on the activity of Escherichia coli has been performed. In this research, observation was done by using microbial fuel cell (using E.coli) with two compartments were connected by nafion membrane and zinc plats were used as electrodes which were connected by copper wire and multimeter. Energy production from the cell was shown from the generated current due to the E.coli's oxidation activity to the substrates (distillation wastes). Results from the research exhibited that chemical compounds in the lime leaves positively affected to the bacterial activity with the generated current present up to 20 µA. It is also observed that mass variation of the substrates significantly affected the current generation. Chemical compounds in the three other wastes were found to be not as effective as lime leaves because from the analysis of their methanol extracts by GC-MS indicated that these contained antibacterial compounds such as octadecanoic acid and rosifoliol. Conclusion from the research was not all of wastes from essential oil distillation have a potency to be used as substrates in the microbial fuel cell as some of these chemicals had an antibacterial property which negatively affected the E.coli bacterial activity in the cell. Keywords : microbial fuel cell, Escherichia coli, waste of essential oil distillation.
Abundance and Diversity of Bacteria on Catfish Nursery Rearing (Clarias gariepinus) With Closed Water System (Close Water System) Muhammad Hanif Azhar; Mohammad Faizal Ulkhaq; . Prayogo
Journal of Aquaculture Science Vol 2 No 1 (2017): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v2i1.19

Abstract

This research aimed to identify types of bacteria existed in nursery rearing pond of catfish (Clarias gariepinus) using closed water system. The observed data include bacterial abundance and diversity in the water and in the fish digestion system, fish growth and water quality. This research was performed in the media of 3 concrete pools with the size of 3 x 1 x 0.8 m3 containing fish stock spreading of 3000 tail / pond. The obtained results showed that the highest abundance of bacteria was found in the surface and the bottom of pond C with the abundance number of   3,0 x 104and 1,2 x 103for aerobic and anaerobic bacteria, respectively. Moreover, it was figured that the dominant bacterial species found in the water and the gastrointestinal tract were from the genus of Bacillus, Clostridium and Lactobacillus. Meanwhile, water quality in the pond was observed in the normal range with the temperatures of 28 - 30 oC, pH (6.0 - 7.0), DO (4.5 - 5.7 ppm), ammonia (0.06 - 0.03 ppm), nitrite (0 ppm) and nitrate (0 - 5 ppm). Keywords: Type of bacteria, catfish (Clarias gariepinus), Closed water system.
Efficiency Analysis of Factors Production Milk Fish (Chanos chanos) (Case Study on Alumni Training Participants Of Fish Culture in BPPP Banyuwangi) . Sumartin
Journal of Aquaculture Science Vol 2 No 1 (2017): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v2i1.20

Abstract

This study aims to  analyze the  economic, technical and price efficiency of  milkfish farmers participating fish culture training at Center of Education and Fisheries Training Banyuwangi, analyzing covering factors affecting production efficiency. Analysis of data used in the form of production function analysis Cobb Douglas stochastic frontier which is estimated by Ordinary Least Square Method (OLS). Estimation of Cobb-Douglas production function model using OLS method to know the efficiency of the average performance of fish culture business. Estimates with the maximum likelihood (MLE) method to determining the level of technical efficiency, using the 4.7 frontier computing program developed by Coelli (1996). To know the efficiency of the price can be calculated by the value of marginal product (VMP) of production factor. The results show that the level of economic efficiency of milkfish culture business in Gresik East Java, based on the results of estimation using MLE method, the result of six factors of production is in rational area, but not yet efficient because the obtained coefficient value of each area of pond (X1) 0.318, fertilizer (X2) 0.079, lime (X3) 0.009, seeds (X4) 0.005, probiotics (X6) 0.066 and labor (X7) 1.311. While one feed production factor (X5) is in an irrational area because it has a coefficient value of -0.017. While the variables that influence inefficiency are experiential variables (Z1), age of farmers (Z2) and formal education (Z3) each have elasticity of -0.0711458; -0,6270106 and -0,1504381. The value of Marginal Product (NPM) of pond production area (X1) is 0.00059 (<1), Fertilizer (X2) is greater than 1 ie 3,01413, lime production factor (X3) 3,35338, the other NPM factor production such as Seed (X4) and Labor (X7), with value less than 1 (0.00075 and 0.03865), NPM Feed (X5), is smaller than one ie -0.00364 (<1 ). NPM probiotic (X6) is 95,1491 (> 1). Overall allocation of the seven factors of production is the average value of price efficiency is also more than one that is equal to 101,553 and economic efficiency equal to 2,904. it can be concluded that fish breeding business has not been efficient. Keywords: efficiency, economy, technical, price, frontier, milkfish
Total Haemocytes of Pacific White Shrimp (Litopenaeus vannamei) cultured at salinity of 10 ppt in various stocking density Dian Febriani; Eulis Marlina; Adni Oktaviana
Journal of Aquaculture Science Vol 3 No 1 (2018): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i1.35

Abstract

This study aimed to determine total haemocytes and survival rate of pacific white shrimp cultured at 10 ppt in various stocking density. This study consisted of three treatments with three replicates. The shrimp was cultured at salinity of 10 ppt with different stocking densities: 150 shrimps/m2 (A), 200 shrimps/m2 (B), and 250 shrimps/m2 (C). The result showed that different stocking density affected significantly on the growth performance but gave no effect on the survival and the total of shrimp haemocytes. This study was conducted for five weeks. The best growth performance was seen in the treatment with stocking density of 150 shrimps/m2. Keywords: Pacific White Shrimp, Salinity, Stocking density, Total Haemocytes, Survival rate.
Inventarisation of Protozoan and Arthropoda Ectoparasitic Infestation in Freshwater Fish in Banyuwangi City, East Java Mohammad Faizal Ulkhaq; Darmawan Setia Budi; Kismiyati ,
Journal of Aquaculture Science Vol 3 No 1 (2018): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i1.36

Abstract

Detriment caused by ectoparasitic infestation was not as big detriment caused by infestation of other organisms such as viruses and bacteria, but it could be a predisposing factor for the infection of more dangerous pathogenic in fish. The aims of this study was to inventory ectoparasites that infecting freshwater fish cultivated in several districts in the Banyuwangi, in which the results were expected to be used as a reference in an effort to prevent the spread of disease in fish culture. The sample of research consisted of tilapia fish, carp and catfish which were obtained from six sub districts in Banyuwangi, those were Kota, Kabat, Licin, Kalipuro, Giri, and Glagah. The ectoparasite examination method was performed naturally by scraping the surface of the body, fins and gills of the fish, then observed under a microscope with magnification ranging from 40 to 400x. The results of further observations were documented and identified by key identification. Ectoparasites which were found infesting freshwater fish in the city of Banyuwangi consisted of 4 genuses: namely Argulus, Lernaea, Chonopeltis and Trichodina. Further research is needed to determine the prevalence and intensity of ectoparasites in order to prevent the spread of ectoparasites in other regions. Keywords: Inventarisation, ectoparasites, freshwater fish, Banyuwangi
Performance of Kappaphycus alvarezii Seaweed from Maumere and Tembalang in Longline System Cultivation Fadli Zainuddin; M. Masyarul Rusdani
Journal of Aquaculture Science Vol 3 No 1 (2018): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i1.37

Abstract

The Kappaphycus alvarezii seaweed widely cultivated originates from Maumere and Tembalang. Kappaphycus alvarezii has a high economic value because of the high carrageenan content used in food products, cosmetics, and medicines. This research was evaluated the performance of seaweed (Maumere and Tembalang) cultivated using longline method near to the shore. Research was conducted by cultivating seaweed using lines extending 50 m long, of each 2 ropes for Maumere seaweed and the other 2 ropes for Tembalang, and then the seaweeds were cultivated for 45 days. Daily control and sampling were conducted to determine the performance of seaweed every 15 days as well as water sampling was taken to determine the water quality of the cultivation location. The results showed that Maumere seaweed performance was higher than Tembalang seaweed and that the water quality was suitable for seaweed cultivation. Keywords: Performance, Kappaphycus alvarezii, Tembalang, Maumere
Application of Bioflocs Combined with Probiotics for Prevention of Vibrio Parahaemolyticus Infection In White Shrimp (Litopenaeus vannamei) Fariq Azhar
Journal of Aquaculture Science Vol 3 No 1 (2018): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i1.38

Abstract

Shrimp farming with intensive system was causing many problems. The presence of disease problems in shrimp caused by bacteria, viruses, or co-infection was a problem that must be solved. The use of probiotics and biofloc was one way to overcome the existing diseases. In addition, the combination was expected to improve the performance of the shrimp immune system. This study aimed to evaluate the using of biofloc combined with probiotics against vannamei (Litopenaeus vannamei) immune system in the challenge test with V. parahaemolyticus. This research was conducted for 5 months. The treatments were the addition of commercial probiotics in the culture medium with biofloc system on the feed in the form of negative control (without probiotics + without biofloc) (1), positive control (biofloc culture medium and without probiotic adduction) (2), probiotics I + bioflok (3 ), probiotics II + biofloc (4), and probiotics III + bioflok (5). The results obtained for the performance performance of the shrimp immune system that the best in treatment 4 (probiotic II + biofloc) with SR yield of 76.67%, THC of 9.7 x 106 ml-1, and total bacterial count of 1.59 x 107. Keywords: Vannamei, Probiotics, Biofloc, Immune System.
Bioaccumulation Of Heavy Metal Mercury (Hg) In Rain Season In Culture Of Green Mussel (Perna viridis) On Cirebon Water, West Java Dewi Nurhayati; Didha Andini Putri
Journal of Aquaculture Science Vol 3 No 1 (2018): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i1.39

Abstract

A Study was conducted to determine the bioaccumulation of heavy metal mercury (Hg) by the tissue of Perna viridis (green mussel), water, and sediment collected from culture of green mussel in Cirebon water, West Java on rainy season February 2018. Sediments, green shells of P. viridis, and water were taken from the culture of green mussel of Cirebon waters. Samples were taken during the rainy season in February at harvest age ie 6 months of maintenance. Seawater, sediment, and green shell samples were taken 3 replications. Testing of mercury (Hg) heavy metals follows SNI 01-2354.6-2006 measured in the laboratory of Research and Development Guidance of Quality of Fishery Products (BPPMHP) Cirebon, West Java. Based on the results of the research, it is known that the content of heavy metals mercury (Hg) in sediments of 0.003 ± 0.006 ppm, green mussel P. viridis 0.027 ± 0.038 ppm, water 0.017 ± 0.029 ppm.Keywords: Green mussel, heavy metal mercury, rainy season, Cirebon water
Identification of Causes of Mass Death Of Gurami Fish (Osphronemus gouramy) In Gurami Fish Cultivation Sentra, Desa Beji, Kedung Banteng District, Banyumas District, Central Java Achmad Khumaidi; Aris Hidayat
Journal of Aquaculture Science Vol 3 No 2 (2018): Journal Of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i2.53

Abstract

Kasus kematian massal ikan Gurami di Sentra Budidaya Ikan Gurami, Desa Beji, Kecamatan Kedung Banteng, Kabupaten Banyumas, Jawa Tengah berdampak pada menurunnya produksi telur dan benih ikan Gurami. Penelitian ini bertujuan untuk mengidentifikasi patogen penyebab kematian pada ikan Gurami. Metode yang digunakan metode survei dengan pengambilan sampel secara acak, kemudian diidentifikasi keberadaan patogen pada sampel ikan Gurami. Hasil identifikasi patogen pada ikan Gurami menunjukkan adanya infeksi Bakteri (Aeromonas hydrophila, Aeromonas sobria), Parasit (Henneguya sp., Trichodina sp., Vorticella sp.) dan Jamur (Aspergillus sp.). Penelitian ini menunjukkan bahwa kematian massal pada ikan Gurami disebabkan oleh serangan bakteri, parasit, dan jamur.Kata Kunci: ikan Gurami, kematian massal, bakteri, parasit, jamur.
Dietary Supplementation of Zinc to Improve Pacific White Shrimp (Litopenaeus vannamei) Immune System Adni Oktaviana
Journal of Aquaculture Science Vol 3 No 2 (2018): Journal Of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v3i2.54

Abstract

This study aimed to determine the effect of zinc supplementation to improves immune responses on the pacific white shrimp (L. vannamei).This study consist of two treatments with four replicates. Dietary zinc supplementation 45 mg/kg of feed (P) anda without dietary zinc supplementation (C). This study was conducted for five weeks. The result showed significantly different on growth performance and haemocytes total. However, its has no significantly different on survival rate of the shrimp. Keywords: Pacific White Shrimp, Total Haemocyte Count, Zinc

Page 11 of 22 | Total Record : 212

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