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Journal of Aquaculture Science

JoAS
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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 Different Culture Containers to Cell Densities of Nitzschia in Laboratory Scale Ulkhaq, Mohammad Faizal; Kharismawati, Yeni Dwi; Fasya, Arif Habib
Journal of Aquaculture Science Vol 4, No 2 (2019): Journal of Aquaculture Science
Publisher : Airlangga University

The study aimed to determine the type of culture container for increasing the cell density of Nitzschia and producing the hightly cell biomass. The stages of this study were sterilization of containers and media, making diatom fertilizers and agar media, culture of Nitzschia in agar medium, culture of Nitzschia in test tube, and culture of Nitzschia in glass and plastic containers. The result showed that the cell density of Nitzschia cultured in the glass container was higher than plastic containers. Further study was needed to determine the nutrient composition of Nitzschia that culture in glass containers.Keyword : Nitzschia culture, Laboratory scale, Glass, Plastic container.

Mangrove Species Diversity in Coastal Village swollen Banyuwangi Regency Buwono, Yanuar Rustrianto
Journal of Aquaculture Science Vol 4, No 2 (2019): Journal of Aquaculture Science
Publisher : Airlangga University

The Bengkak coastal area is one of the coastal areas which is a marine fishery activity with a natural mangrove ecosystem of Â± 9 ha bordered by reed mangrove and opposite to TN West Bali mangrove. Environmental pressure with the presence of human activities such as the extraction of mangrove wood causes the growth and development of mangroves not optimal and affects the potential of mangrove ecosystems so research needs to be done to determine the diversity of mangrove ecosystems on the coast of Bengkak Village, Banyuwangi District. Observations in the whole mangrove ecosystem have low species diversity criteria, namely H 'ranging from 0.20 - 0.67 and dominated by A. marina species from the families Avicenniaceae and R. mucronata from the family Rhizophoraceae. While the density of species in all observation stations found that mangrove stands ranged from 967 - 82,000 Ind / Ha. The density of A. marina mangrove vegetation was identified as the highest in the seedling phase of 7,500 Ind / Ha, the sapling phase was 74,000 Ind / Ha and the tree phase was 567 Ind / Ha. The lowest type of R. mucronata was identified in the seedling phase of 5,000 Ind / Ha, sapling phase of 8,000 Ind / Ha and tree phase of 400 Ind / Ha. Environmental factors in the form of nutrients such as leaf litter and the quality of the aquatic environment also influence the growth and development of mangrove ecosystems. environmental conditions in the mangrove zone have the texture of sandy soil and sandy mud, temperatures range from 23 - 33 Â°C, pH ranges from 7 and salinity ranges from 23 - 36 â€°. These environmental conditions support the growth and development of the species of mangrove Avicennia sp. and Rhizopora sp. so that it is dominant and spreads on the coast of Bengkak Village.

Sustainable Shrimp Cultivation Development Strategy in Coastal Area of Tegal City, Central Java Province Muchtar Muchtar; Mochammad Farchan; Mugi Mulyono
Journal of Aquaculture Science Vol 5 No 1 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

The current prospect of shrimp aquaculture is still making profitable business activities. However, increased production must be followed by the application of sustainable technology. The opening of new land and the management of existing land still takes into account the environmental, social and economic carrying capacity. The purpose of this study was to determine the strategy for developing sustainable shrimp culture in the coastal area of Tegal City, Central Java Province. The study was conducted from July to October 2019. This research is a descriptive study with a case study method Subdistrict Data analysis was done descriptively and SWOT analysis (Strength, weaknes, opportunity, threat). While based on the calculation of internal factors obtained a total value of 2.86 and external factors of 2.69, This value indicates that the vaname shrimp farming business in the coastal area of Tegal City is in a position to experience growth and production stability, taking into account market needs and the application of environmentally friendly cultivation technology applications.Keyword : Shrimp aquaculture, development, strategy, technology

(Short Communication) Study of the Hatchery of Tiger Grouper (Epinephelus fuscoguttatus) Household Scale in Penyabangan Village, Gerokgak District, Buleleng Regency, Bali Province Muh Sulaiman Dadiono; Liga Insani
Journal of Aquaculture Science Vol 5 No 1 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

Hatchery of tiger grouper (Epinephelus fuscogutattus) household scale is one of the contributors to the increase in national grouper seed production. with the hatchery of household-scale grouper, the demand for grouper seed can be fulfilled as well as improving the community's economy. This study aims to determine the hatchery of household-scale tiger grouper which includes the provision of feed, hatching eggs, water quality management, harvesting, Hatching Rate (HR) and Survival Rate (SR). Data collection methods by interview, observation and active participation. Observation results related to seeding began with the provision of natural food to harvest the seeds measuring 2.7-3 cm. Hatching Rate (HR) reaches 80% and Survival Rate (SR) reaches 20%. The seeds produced were 120,000 per cycle. Seed yields are 24,000 per cycle.Keyword : Hatchery, Tiger Grouper, Epinephelus fuscogutattus, Household Scale

Response of Neem Leaves Azadirchta indica Extract Immune System of (Oreochromis niloticus) Lutfi Hamzan Wari; Ayu Adhita Damayanti; Fariq Azhar
Journal of Aquaculture Science Vol 5 No 1 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

Tilapia (Oreochromis niloticus) is a species of freshwater fish that is widely cultivated in areas that have a large quantity of fresh water. In the cultivation of tilapia fish are often infected by fish diseases which not infrequently thwart the growth and survival of fish resulting in death of fish that are cultivated (crop failure). This study aims to analyze the response of giving neem leaf extract (Azadiracta indicida) to the immune system and growth of tilapia. The fish were given neem leaf extract which was added to the feed for 45 days in 54cm x 37cm x 29cm containers each with 10 heads / container with a volume of 20 liters. The study was conducted in 5 treatments, control + (commercial feed and infected by Aeromonas hydrophila 106 cfu / ml as much as 0.1 ml / head), control - (commercial feed of bacterial infection), P1 (feed mixed with 0.5% extra neem leaves and infected with bacteria ), P2 (1% extracted and infected), P3 (2% extracted and infected). The results showed that administration of neem leaf extract at a dose of 1% was able to maintain SR by 100%, increasing the number of erythrocyte tilapia by 15.0 í— 105 cells / ml and leukocytes by 15.0 í— 104 cells / ml and hemoglobin by 6.0 % of the total blood cells contained in P4 that play a role in the immune system of tilapia. Based on the results of this study, neem leaf extract can be used in tilapia aquaculture as an immunostimulant because it can improve survival, red blood cells, white blood cells and hemoglobin.Keyword : Extract neem leaves, Aeromonas hydrophila, Tilapia, Feed.

Density of Tetraselmis sp. Cultured in Carboy Media with Different Nutrients Chelsey Violeta Christya Archadia Cheres; Novia Salmatin; Lailatul Lutfiyah
Journal of Aquaculture Science Vol 5 No 1 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

Feed is the key to success in aquaculture, because it affects the resistance and development of larvae. There are two types of feed given to fish, namely artificial feed and natural feed. One type of natural feed that can be used as an enhancer for aquaculture feed needs is Tetraselmis sp.. So that practice is needed to learn, understand and practice directly the Tetraselmis sp. Natural feed culture techniques. laboratory scale. This research was held at the Brackish Water Aquaculture Center (BBPBAP) Jepara, Central Java for 46 days starting on December 17, 2018 until January 31, 2019. The culture technique consists of several stages including the preparation of tools and equipment, sterilization, fertilizer making, media preparation, calculation of inoculants, nutrition, seedling and maintenance. Based on observations for 16 days, Tetraselmis sp. has four growth phases consisting of adaptation, exponential, stationary and death phases. Tetraselmis sp. experienced the highest density on the tenth day with an average of 109.87 x 104 cells / ml. This shows that the growth of Tetraselmis sp. long enough than other species. After experiencing the exponential phase, Tetraselmis sp. experienced a stationary phase for 3 days and subsequently decreased density to reach 65.22 x 104 cells/ml on the sixteenth day.Keyword : Tetraselmis, Phytoplankton, Culture Technique

Relation between age and fecundity of giant gouramy (Osphronemus gouramy) Arif Habib Fasya; Hilda Nabila
Journal of Aquaculture Science Vol 5 No 1 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

The need for gouramy (Osphronemus gouramy) continues to increase, this can be seen from the gouramy trade which has begun at the egg stage, so research is needed that affects the number of eggs (fecundity) of the gouramy parent. In this study aims to determine the relationship between age and fecundity of gouramy. The research method used is comparative descriptive. Main gouramy fish is divided into 3 based on their age, pond A is 2.5 years old, pond B is 4 years old and pond C is 8 years old. Observations were made by taking eggs from the nest in each pond then counted manually. The observations showed that the parent who was 4 years old had the highest level of fecundity.Keyword : Age, Fecundity, Osphoronemus gourami

Morphology and Sequencing of Myxobolus koi DNA that Infects Koi fish (Cyprinus carpio) in Blitar Regency Rachmat Noer Soelistyoadi; A.D. Nurekawati; D. Setyawati
Journal of Aquaculture Science Vol 5 No 1 (2020): Journal of Aquaculture Science
Publisher : Airlangga University

Myxobolus koi is a type of myxospore parasite that infects many fresh ornamental fish, this disease is also called myxobolusis. Currently there are 29 species of Myxobolus that have been identified to infect Cyprinus carpio, with 17 of them infecting gills, so it will be difficult to determine the type of Myxobolusis. This study aims to identify Myxobolus species that infect Cyprinus carpio koi fish based on conventional and molecular analysis. Myxobolus spores obtained from Blitar Regency microscopically have spores length of 11-14 Î¼m with an average of 12.82 ± 0.75 Î¼m and width of 7-8 Î¼m with an average of 7.09 ± 0.84 Î¼m, while the size capsules have a length of 7-8 Î¼m with an average of 7.36 ± 0.497 Î¼m and a width of 2-3 Î¼m with an average of 2.64 ± 0.49 Î¼m n = 10. Electrophoresis results of clinically infected fish Myxobolus koi appeared band (band) at 2000 bp, sequencing DNA Myxobolus koi parasites that infect koi fish (Cyprinus carpio) in Blitar have the highest similarity (percent identity) with the sample code KT.240127.1, namely on Myxobolus koi which infects Rainbow trout (Oncorhynchus mykiss) in Southwest China. The closest genetic distance of the Myxobolus koi blitar sample to the Myxobolus koi sample in koi fish (Cyprinus carpio) with sample code FJ841887.1 and Myxobolus koi in rainbow trout (Oncorhynchus mykiss) with sample code KT240127.1. at the same value 0.273.Keyword : Myxobolus koi, koi (Cyprinus carpio), PCR, Sequencing.

Identification of the Distribution of Asian Redtail Catfish (Hemibagrus nemurus) Based on Geographical Information Systems (GIS) in the Progo River, Magelang, Central Java Tholibah Mujtahidah; Usman Siswanto; Sri Hidayati; Abdul Qadir Jailani
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.v6i1.125

Identification of the distribution of asian redtail catfish (Hemibagrus nemurus) based on Geographical Information System (GIS) in the Progo Magelang river is a database collection process to determine the distribution patterns of H. nemurus and determine H. nemurus resources with the help of GIS and outlined in the form of a fish resource zoning map so that it can help in domestication efforts that lead to the cultivation of endemic aquatic commodities. The purpose of this study was to identify the distribution of H. nemurus, determine the status of H. nemurus resources based on diversity data to see the existing potential and to describe it in the form of a fish resource zoning map in the progo river. The research method used was a survey method with a GIS approach and the data presented in the form of descriptive analysis included fish identification and a GIS approach. GIS data processing used is in the form of hardware, namely: Personal Computer (PC), color printer and scanner, while the software in the form of software ArcGIS 9.x, Ms. Excel and Ms. Word. The method used in this study is the GIS approach with spatial analysis techniques, namely the techniques used in analyzing spatial / spatial studies. Based on the results of the study, it was shown that H. nemurus in the Progo river were found in areas with sandy clay substrates at a depth of 2 m, namely in the Ngeluwar area. The distribution of H. nemurus in the Progo river tends to be evenly distributed, because the conditions of the Progo river habitat support the life of H. nemurus.Keywords: Hemibagrus nemurus, Geographical Information System, Progo River.

The dynamics of the socio-cultural life of coastal communities Yuliana, Yuliana
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.153

The most important coastal socio-cultural management is the economic management of fishermen. As an archipelagic country, most of its territory consists of oceans, Indonesian fishermen should have a prosperous level of economic life. However, there are still many fishermen who are classified as poor. To improve the socio-cultural elements of the fishing community in Indonesia, a high entrepreneurial ethos is needed. This relates to the management of marine fisheries business. Aspects of short and long term planning must be prepared in detail. Sustainable development is needed to foster better utilization of marine resources. Social conditions are also related to the activities of fishermen in a social organization. Cultural conditions are the use of methods and technologies that have been used for generations to catch fish. Marine aquaculture innovation, providing freedom in a responsible manner, and respecting the rights of everyone can be done to improve the welfare and socio-cultural management of the coast. Socio-cultural transformation will give direction to economic transformation. The effort needed is to increase the knowledge of fishermen. The surrounding companies should provide business opportunities for local communities. Government policies will determine the success of coastal socio-cultural management.Keywords: management, coastal, socio-cultural

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Muhammad Hanif Azhar

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Kota surabaya,

Jawa timur

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Home Page

OAI Link

Editorial Team

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Reviewer

Google Scholar

Contact Name Muhammad Hanif Azhar

Contact Email joas@psdku.unair.ac.id

Phone -

Journal Mail Official joas@psdku.unair.ac.id

Editorial Address -

Location Kota surabaya, Jawa timur INDONESIA

Abstract

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Contact Name
Muhammad Hanif Azhar

Contact Email
joas@psdku.unair.ac.id

Phone
-

Journal Mail Official
joas@psdku.unair.ac.id

Editorial Address
-

Location
Kota surabaya,

Jawa timur

INDONESIA