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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 5 Documents
 1 
Search results for , issue "Vol 4, No 2 (2019): Journal of Aquaculture Science" : 5 Documents clear
Virus Detection of Pacific White Shrimp (Litopenaeus vannamei) at Fish Quarantine Center, Quality Control, and Security of Fishery Product in Surabaya I Azizah, Aulia; Budi, Darmawan Setia; Fasya, Arif Habib; Kenconojati, Hapsari; Azhar, Muhammad Hanif
Journal of Aquaculture Science Vol 4, No 2 (2019): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (432.049 KB) | DOI: 10.31093/joas.v4i2.71

Abstract

Pacific white shrimp (Litopenaeus vannamei) is one of the leading fisheries commodities that have important economic value and are in great demand by consumers in the market. Pacific white shrimp has several advantages, namely rapid growth, able to adapt to a high range of salinity, and can be cultured with a super intensive system, but in recent years the total shrimp production in Indonesia has decreased. In 2012 the total shrimp production decreased from 1.900 tons to 1.025 tons, the virus is thought to be a pathogen that triggers disease in shrimp and causes high mortality. The type of virus that causes disease in pacific white shrimp cultivation is Taura Syndrome Virus (TSV), Infectious Myonecrosis Virus (IMNV), and White Spot Syndrome Virus (WSSV). The purpose of this study is to detect viruses that infected and determine the prevalence of viruses that attack pacific white shrimp. The research was conducted in December 2018 to January 2019 at Fish Quarantine Center, Quality Control and Security of Fishery Product Surabaya I. The material used in the study was 37 post larval samples. Samples extracted using Silica Extraction Kit, then detected molecularly using PCR (Polymerase Chain Reaction). This research was observational, then the data obtained were analyzed descriptively. The results showed that there were 3 positive samples of IMNV and 2 positive samples of WSSV with prevalence values of 8.10% and 5.40%. High and low prevalence values are influenced by the level of virus spread and inappropriate environmental conditions. Keywords : Pacific white shrimp, PCR (Polymerase Chain Reaction), prevalence, virus. 
The Addition of Mangrove Leaf Extract Rhizophora apiculata in White Shrimp (Litopenaeus vannamei) for Vibriosis Prevention Fadillah, Nur; Waspodo, Saptono; Azhar, Fariq
Journal of Aquaculture Science Vol 4, No 2 (2019): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (365.694 KB) | DOI: 10.31093/joas.v4i2.75

Abstract

White shrimp is a brackish water commodity which is a solution to approve tiger shrimp (Penaeus monodon) which improves quality. One of the challenges in the cultivation of white shrimp is the attack of vibriosis, caused by the vibrio genus species V. parahaemolyticus. Rhizophora apiculata mangrove leaf extract with different dosages in white shrimp feed to increase vibriosis. Shrimp were given mangrove leaf extract for 40 days and were challenged for 7 days in a 40cm x 30cm x 28cm container, 20 heads/20 liter volume container. The study was conducted in 5 training, control + (Feed without extract + Infection), control- (feed without extract), P3 (0,5% + Infection), P4 (1% extract + Infection), P5 (2% extract + Infection ), the injected bacterial dose is 0.1 ml/heads density of 106 cfu/ml. The results showed that administration of mangrove leaf extract at a dose of 2% was able to maintain SR of 76,67%, increasing shrimp THC by 7,55×106 cells/ml and DHC (hyaline cells 84,3% and granular 15,3%) which plan in the shrimp immune system. The number of bacteria and the amount of vibrio in the intestine is, 64,7×108 cfu/ml and 16×108 cfu/ml. Based on the results of the study, the use of mangrove leaf extract can be used in the cultivation of white shrimp as an immunostimulant because it can increase survival, THC, DHC and reduce bacteria in the intestines of white shrimp.Keywords: extracts, mangrove leaves, vibriosis, white shrimp, feed.
Escherichia coli and Salmonella sp. On Fishery Frozen Products at the Fish Quarantine, Quality Control, and Fisheries Product Safety Center Surabaya II, East Java Christanti, Santika Dwi
Journal of Aquaculture Science Vol 4, No 2 (2019): Journal of Aquaculture Science
Publisher : Airlangga University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (583.757 KB) | DOI: 10.31093/joas.v4i2.69

Abstract

Frozen fishery products are a type of commodity with varying levels of development, both in whole and in the form of pieces. Fishery products are foodstuffs that are very easily contaminated with pathogenic microbes that can cause food poisoning and cause disease outbreaks in consumers. This study aims to find out the different types of pathogenic bacteria that contaminate fishery frozen products. The fishery frozen products studied came from tuna, mackerel, mollusks and crustaceans. Examination of Escherichia coli bacteria using the METHOD ISO 16649-3:2015 and Salmonella sp bacteria. It uses iso 6579:2002. The results of tests that have been done can be known that frozen fishery products there are positively contaminated and negative contaminated with Escherichia coli and Salmonella sp.
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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (323.604 KB) | DOI: 10.31093/joas.v4i2.77

Abstract

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

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (834.993 KB) | DOI: 10.31093/joas.v4i2.70

Abstract

The Bengkak coastal area is one of the coastal areas which is a marine fishery activity with a natural mangrove ecosystem of ± 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 °C, pH ranges from 7 and salinity ranges from 23 - 36 ‰. 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.

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