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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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The Effect of Using Different Light Colors on the Growth of Nanochloropsis sp Rehuli damanik
Journal of Aquaculture Science Vol 5 No 2 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v5i2.111

Abstract

Natural feed Nannochloropsis sp. is one of the limiting factors for cultivated creatures. However, the cultivation of natural food is not yet optimal in terms of quantity, one of the efforts that can be done to optimize this is by using lights produced from sunlight to improve the quality of Nannochloropsis sp. The design in this study was a Completely Randomized Design (CRD) consisting of 4 preparations and 3 replications. The treatments taken are the color of the white light (P1), the color of the red light (P2), Green (P3) and Blue (P4). The parameters that increase are the specific growth rate (LPS), time of doubling, growth curve, water quality. The observations obtained at the time of LPS were collected between 0.200-0.248 cells / ml / day, doubling time 2.806-3.476 then the temperature measurement results were between 30.6-32 0C pH 6.2-7.5, salinity 26-27 ppt and DO 5,7-6,7 ppm. Based on the results of analysis of variance conducted on the given color light has a real influence on the specific growth rate and time multiplication.Keywords: Light, Nannochloropsis sp., Growth
Comparison of Plankton Abundance, Water Conditions, Performance of Vaname Shrimp (Litopenaeus Vannamei) Growth in Intensive and Extensive Cultivation Systems in Banyuwangi Regency Waters Setyaningrum, Ervina Wahyu; Yuniartik, Mega
Journal of Aquaculture Science Vol 6, No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.152

Abstract

Vaname is one type of shrimp that is often cultivated in Indonesia. The shrimp farming system model consists of an extensive system (traditional) and an intensive system. This study aims to compare the abundance of plankton, water conditions, growth performance of vannamei shrimp (Litopenaeus vannamei) in intensive and extensive aquaculture systems in the waters of Banyuwangi Regency. Parameters measured include physical and chemical parameters, namely temperature, brightness, pH, dissolved oxygen, salinity, ammonia, and alkalinity, type and abundance of plankton. The research method used is descriptive method. The method of analysis is the abundance of plankton, and analysis of productivity, SR, FCR and growth of vannamei shrimp. The results showed that plankton in intensive pond waters were identified as many as 4 classes, namely phytoplankton class Chlorophyta, Cyanophyta and Chrysophyta, while zooplankton class Protozoa. In traditional ponds, it is not much different, only the Crpytophyta class as an additional identification result. The abundance of plankton in intensive ponds reaches 27,595 individuals per liter, while for extensive ponds the abundance of plankton reaches 37,641 individuals per liter. While the survival rate of shrimp in intensive ponds is around 86%, while in extensive ponds is 67%. The FCR value for extensive ponds is 1.02, while the FCR value for intensive ponds is 1.17. The final average weight of shrimp in intensive ponds was 11.76 g/head and 8.33 g/head in extensive ponds.Keyword : Vaname Shrimp, Intensive Cultivation, Extensive
Mapping and Identification of Mangrove in Coastal Area of Wongsorejo District Yuniari, Shinta Hiflina
Journal of Aquaculture Science Vol 6, No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.170

Abstract

The northern to southern of Banyuwangi there have the stretches of mangrove, nevertheless  only a few of mangrove locations have been identified and mapped based the type and extent of the mangroves. The coastal area of Banyuwangi Regency is the longest in East Java, with mangrove as the priority of tourism program coastal resources, therefore must be conservated. This study aims to determine the types of mangroves on Wongsorejo coastal, mapping  the distribution of mangroves on Wongsorejo coastal, and determine the diversity of mangroves on Wongsorejo coastal. The research design used in this research is descriptive quantitative. Methods of data analysis using spatial analysis and analysis of mangrove vegetation. The results showed that there were 18 mangrove species consisting of 10 true mangroves and the remaining 8 associated mangroves, such as Avicennia lanata, Avecennia marina, Sonneratia alba, Rhizophora apiculata, Avicennia alba, Rhizophora stylosa, Rhizopora mucronata, Excoearia agallocha L, Lumnitzera racemose, Willd. var. Racemosa, Phemphis acidula, Wedelia biflora, Ipomoea pes-caprae, Calontropic gigantea, Clerodendrum inerme Gaertn, Hibiscus tiliaceus L, Morinda citrifolia L, Passiflora foetida, Sesuvium portulacastrum. The relative density of mangroves on Wongsorejo coastal was less than 50%, which means that mangroves are few/rare and/or in heavily damaged condition. Meanwhile, diversity based on the analysis carried out shows moderate diversity.Keyword : Identification, Mapping, Mangrove, Wongsorejo Coastal.
Optimization of Probiotic Addition in Feed on Growth of Baung Fish (Hemibagrus nemurus) Sri Warastuti; Agus Setiawan; Sarmila Sarmila
Journal of Aquaculture Science Vol 6 No 1 (2021): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1.140

Abstract

Baung fish is one type of local fish that has a slow growth. One of the efforts to increase the growth of baung fish can be done by using probiotics. This study aimed to determine the optimum dose of probiotic addition for the baung fish rearing. The experiment used a completely randomized design (CRD) with four treatments, three replications, and one control. The probiotic doses: 2 ml/kg of feed (A), 4 ml/kg of feed (B), 6 ml/kg of feed (C), 8 ml/kg of feed (D) and 0 ml/kg of feed (control) were used as treatment. The commercial feed was given ad satiation with a frequency of feeding three times a day. Observations were made for two months. The results showed that the D treatment of 8 ml/kg of feed gave the best absolute weight growth and feed conversion ratio. While, the baung fish survival rate was not significantly different on all treatments.Keywords: Baung fish, growth, probiotics
The Influence of Economic and Entrepreneurial Environmental Factors on Coffee Farming Performance in Banyuwangi Regency Widiastuti, Yusmia
Journal of Aquaculture Science Vol 6, No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.165

Abstract

The plantation sector is a sector that plays a role in the country's foreign exchange earnings. One of the foreign exchange-producing plantation commodities is coffee. In 2011, foreign exchange earnings from coffee commodities resulted in an export value of US$ 1,085.89 million or 10.1% of the export value of all agricultural commodities, or 0.5% of non-oil and gas exports or 0.4% of the total export value. To increase coffee productivity both in quality and quantity, it is necessary to improve the economic environment and also have the entrepreneurial competence of coffee farmers. The purpose of this study was to analyze the influence of the economic environment and entrepreneurship on-farm performance. This research was carried out in Banyuwangi Regency which was carried out purposively with the research population being coffee farmers who had a coffee area of 0.5 - 1 Ha. The results of the study show that the economic environment has a positive effect on entrepreneurship as a result, the better the economic environment, the better the entrepreneurship of farmers. The economic environment does not directly affect the performance of coffee farming but has a direct effect on farmer entrepreneurship. Entrepreneurship has a positive effect on farm performance, as a result, the better the farmer's entrepreneurship, the better his farming performance.Keywords: Economic Environmental Factors, Entrepreneurship, Farming Performance, Coffee
Prevalence and Intensity of Catfish Parasites (clarias sp.) "Mino Ngremboko” Group Cultivation Pool, Grabag Village, Grabag District, Purworejo Regency Ayuningtyas Ayuningtyas; Muhammad Tri Aji; Abdul Qadir Jailani; Eric Armando
Journal of Aquaculture Science Vol 6 No 1 (2021): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1.124

Abstract

Parasite infections in aquaculture can trigger primary infections due to decreased fish immunity making it easier for other microorganisms, both bacteria and viruses, to enter the fish's body. This study aims to identify, calculate the prevalence and intensity of parasites that found in catfish ponds of the "Mino Ngremboko" fish farmers group in Grabag Village, Grabag District, Purworejo Regency. This study used the scraping method by reviewing the gills, mucus from the skin, fins and digestive tract onto a glass object which was then observed microscopically using a light microscope with a magnification of 10-40x. The parasites found were ectoparasites consisting of 6 species; Trichodina sp., Tetrahymena sp., Gyrodactylus sp., Epistylis sp., and Dactylogyrus sp. No parasites were found from the endoparasite and hematozoa groups. The highest prevalence was Dactylogyrus sp. with a prevalence rate of 54% and the lowest was Dinoflagella with a prevalence rate of 10%. The highest and lowest parasite intensities were Epistylis sp. (18,0 ind./infected fish) and Dactylogyrus sp. (2,8 ind./infected fish), respectively. It can be concluded that the level of parasitic infections in the fish farmer groups ponds was at the "common-usually” level based on William and Bunkley's prevalence criteria.Key words: Clarias sp., identification of Parasite, prevalence, intensity, Mino Ngremboko
Aquaculture Base Group (ABG) as an Effort to Develop a Sustainable Fisheries Economy Rachmadhany, Syavin Pristiwayuning; Abdat, Rusdi; Prayogi, Ahmad Rido’I Yuda
Journal of Aquaculture Science Vol 6, No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.155

Abstract

Indonesia has enormous potential in the field of fisheries, this is because about 70% of its territory is oceans and archipelagic countries. Shrimp farming in Indonesia is a practice that is widely practiced by Indonesians. This is because shrimp is a fishery commodity that has the highest demand. Aquaculture Base Group (ABG) aims to manage communities, who were originally individuals in managing ponds to become groups, because it will make it easier to get support from the government and get more benefits than only individuals. The program is implemented using several methods, namely socializing the importance of cultivation using the ABG method, explaining the advantages of using the ABG method, forming cadres for coordination between extension agents and the community so that communication can be evenly distributed, and distribution for each pond and job desk. As well as the holding of monitoring and evaluation, whether to get more efficient results when using ABG or individual methods. The ABG method is more efficient than using the individual method, including fry and feed can be purchased at a lower price, fry can be done together so that supervision will be easier, management of water sources is more maintained, and biosecurity is easier, and the impact of management be the responsibility of groups not individuals. Conclusion: the use of ABG cultivation method is more efficient, get affordable prices when buying fry and feed, disease management that can be managed together, cheaper electricity, easier biosecurity and more maintained water management (Tandon and Waste Water Treatment Plant) .Keyword : Fishery, shrimp farming, group, sustainable
Economic Study Of Tuna Loin Industry Development In Kaur Regency, Bengkulu Province Zamdial, Zamdial; Hartono, Dede; Yudesta, Tri Anugrah
Journal of Aquaculture Science Vol 6, No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.177

Abstract

Tuna fishery production in Bengkulu Province is mainly produced by fishermen in Kaur Regency. The tuna fishery business in Kaur Regency is still small scale and traditional. The potential of tuna fish resources that quite large in the Kaur Regency waters, which provides a large enough opportunity for the development of tuna fisheries to a larger scale, including the tuna processing industry. The research objective was to analyze the feasibility of developing the tuna loin industry in Kaur Regency, Bengkulu Province. The research was conducted in July-August 2018, using a survey method. Data collection was carried out by observation and interview methods. Data analysis was carried out by descriptive method. The feasibility assessment of developing a tuna loin industry using 4 investment criteria, namely B/C Ratio, NPV (Net Present Value), Internal Rate of Return (IRR), and Payback Period (PP). The calculation result of the 4 investment criteria for development of tuna loin fishery industry in Pasar Lama Village, Kaur Regency, Bengkulu Province, namely Net B/C ratio = 1.13, NPV = 594,414,281, IRR = 16.20 and PP = 2.9. Based on the value of 4 investment criteria, with the support of raw material availability and marketing aspects, the development of the tuna loin industry in Pasar Lama Village, Kaur Regency, Bengkulu Province is feasible to be developed.Keywords: tuna, loin, industry, investment, Kaur, Bengkulu
Description of Erythrocyte, Leucocite and Growth Performance of Green Catfish (Hemibagrus nemurus) Feeded With Addtion of Commercial Bread (Saccharomyces cerevisiae) Rizal Akbar Hutagalung
Journal of Aquaculture Science Vol 5 No 2 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v5i2.121

Abstract

Baung fish (Hemibagrus nemurus) is a freshwater fish species native to Indonesian public waters, particularly in Sumatra and Kalimantan. Baung fish has thick, soft meat, delicious taste, and has high economic value. This research was conducted at the Workshop for Fisheries Cultivation Technology Study Program, using a container in the form of a fiber tub which is divided into 4 parts (100cm x 50cm x 7 cm) using waring. The test organism was fish baung with fish size 5cm-7cm, which were spread as many as 10 fish/bulkhead and kept for 60 days. This study used a completely randomized design (CRD) with 4 treatments and 3 replications. The treatment used was the addition of S. cerevisiae yeast to artificial feed (pellets) with different doses. Where the control treatment (K): without the addition of S. cerevisiae, treatment A (P1): with a dose of S. cerevisiae 0.2%, treatment B (P2): addition of S. cerevisiae by 0.5%, and treatment C (P3 ): S. cerevisiae dose of 0.8%. Application of S. cerevisiae uses a coating method with a frequency of 2 times a day. The parameters observed included fish health status (total red blood cells and white blood cells, hematocrit, hemoglobin, and blood glucose) as well as production parameters such as absolute growth, daily growth rate, total feed consumption, feed conversion ratio, survival rate. The results showed that the absolute growth rate and the highest daily growth rate were found in treatment (P2), respectively 21.86 ± 10.05 grams and 0.86 ± 0.38%. On the other hand, the lowest FCR value was found in treatment (P3), namely 1: 1.25 ± 0.60. This shows that the provision of S. cerevisiae has a positive impact on increasing red blood cells, white blood cells, and the growth performance of the fish. Keywords: Erythrocytes, Leukocytes, Growth, Hemibagrus nemurus
Efforts to Reduce Organic Matter In Shrimp Aquaculture Wastewater With Various Bacterial Consortium Trademarks Arfiati, Diana; lailiyah, Shofiyatul; Pratiwi, Rizky Kusma; Alvateha, Dini; Aisyah, Fidhiyah Dita Dahria; Dina, Karina Farkha
Journal of Aquaculture Science Vol 6, No 1IS (2021): Vol 6 Issue Spesial 2021 Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31093/joas.v6i1IS.162

Abstract

Shrimp aquaculture wastewater after the end of the rearing period has a high total organic matter (TOM) content of up to 87.74 mg/L. If the wastewater is disposed of directly without any efforts to reduce or treatment, it will disturb public waters ecosystem because of the high organic matter. The aim of this study was to determine the rate of reduce of organic matter in pond aquaculture waste. The study was carried out in January 2021. Pond wastewater samples were taken from the Tambak at the end of the maintenance period (120 days of maintenance). The trademarks of the bacterial consortium are EM4, Bio HS, BIO Prisma, Starbio plus, BIO2000, and Biolet. The experimental research was arranged in a completely randomized design with 6 treatments and 4 replications. Each treatment was filled with 2 liters of wastewater plus 6 ml of a liquid bacterial consortium. As for the solid bacterial consortium, 1 gram/L was added. Measurements of total organic matter, temperature, pH, dissolved oxygen, salinity and carbon dioxide were carried out every 24 hours for 72 hours of observation. The results showed that during 72 hours of immersion the highest percent reduction in organic matter was in treatment E (BIO 2000) of 95% (87.74 mg/L to 4.11 mg/L). The lowest percentage decrease was in treatment D (Starbio plus) of 83.4% (87.74 mg/L to 14.54 mg/L). However, in general 6 types of bacterial consortium trademarks can degrade organic matter. The levels of temperature, pH, dissolved oxygen and salinity are in optimum conditions, while carbon dioxide exceeds the threshold caused by the high activity of overhauling organic matter by bacteria. The conclusion was obtained that the trademark of the bacterial consortium BIO2000 was the most effective in reducing organic matter for 72 hours.Keyword : Shirmp wastewater, Tambak, Bioremediation, Organic Matter, Microorganis

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