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Omni-Akuatika

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Published by Universitas Jenderal Soedirman

ISSN : 18583873 EISSN : 24769347 DOI : -

Core Subject : Science, Agriculture, Social,

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science

OmniAquatika is a scholarly refereed research journal which aims to promote the theory and practice, innovation, engineering and management as well as social-economic relevant in fisheries and marine sciences fields. The main aspects of research areas include, but are not exclusive to the current research on cells, organisms, populations, ecosystems, or processes that affect aquatic systems in the field of fisheries and marine science. The journal also welcome other aquatic relevant aspect related to the transport, fate, control of nutrients and abatement of pollutants in the aquatic environment as well as the ecosystem rehabilitation. The authors and readers are students, scientists, and regulatory experts from the academic, industrial, and government sectors worldwide. Master thesis and part of dissertation research work might becoming the potential contributors. High-quality, research articles make up the primary content. Other contributions are short communications, reviews, and special issues. Before contributions are accepted for publication, they must pass a peer-review process managed by the editor-in-chief.

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Articles 278 Documents

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Vibriosis in aquaculture Romi Novriadi
Journal Omni-Akuatika Vol 12, No 1 (2016): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Current growth in aquaculture production is parallel with the increasing number of diseases outbreaks and can affect the production, profitability and sustainability of the industry worldwide. Among the groups of pathogenic microorganisms, vibriosis is the well-known cause of severe economic losses and responsible for (massive) mortality of cultured shrimp, fish and shellfish. Antibiotics and chemicals have been applied in farms for traditional treatment and prevention of Vibriosis. However, the frequent use of chemotherapeutic agents has allowed for the development of drug-resistant strainsand has led to allergy and toxicity in humans. Therefore, the use of prophylactic approaches to stimulate and enhance the immune responses becomes urgent. In this short review, the application of immunostimulant, vaccine, probiotics and quorum quenching molecules to inhibit the communication of Vibrio spp were presented. Key words: Vibriosis, Aquaculture, Antibiotics, Prophylactic, Virulence, Immune response

Analisis Kerentanan Pulau-Pulau Kecil di Kecamatan Togean Kabupaten Tojo Una Una Provinsi Sulawesi Tengah (Studi Kasus P. Kukumbi, P. Enam, P. Mogo, P. Kadidiri, P. Pagempa, P. Tongkabo) Mohamad Akbar
Journal Omni-Akuatika Vol 12, No 3 (2016): Omni-Akuatika Special Issue Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

This research was conducted in small islands area to Togean District, TojoUna-Una Regency Central Celebes by ecological and sosio-economic approach. Methods those used in this research were vulnerability index, MCDM (multi criteria dimension making) and Geographycal information system (SIG) approach. Data was collected bt participative and explorative approach. Data analysed parameters using vulnerability, assessment method involved vulnerability variable parameters i.e. area characteristic, area degradation, sea level rise, human impact, economic exposure, economic remoteness. The results shows the range ofcomposit vulnerability index for ecological (CVI-Ek) is 0.00-0.77, economic (CVI-En) is 0.00-0.75, and composite vulnerability ecological-economic (CVI-EE) is 0.00-0.76. Enam island (0.76)and tongkabo island (0.66) is rated to high vulnerable (0.67), Mogo Island (0.14), Kukumbi Island (0.12), Pagempa Island (0.09) and Kadidiri Island (0.07), is considerednon vulnerable. MCDM analysis result that is used to determine small island management model in Togean District, shows ecological criteria is most important compared with economy criteria and social criteria. Analysis of SMART technique shows the type small islands sustainability management scenario in Togean District, those are scenario A (adaptation, 0.94) and scenario B ( without adaptation, 0.55).Keywords : small island, composite vulnerability index, sustainability, togean district.

Thermocline Layers Depth and Thickness in Indonesian Waters when Souteast Monsoon Andreas Bastian Lana; Nia Kurniawati; Noir P. Purba; Mega L. Syamsuddin
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Termocline layer is effect of the unstabliized water when its stratified and usually with temperature decrease. This Research comprehensively discussed Indonesian waters, especially at a time when ITF flows strengthened in eastern part of Indonesia as compared to the western waters of Indonesia. Therefore, it is necessary to study the changes in the depth and thickness of the thermocline in various Indonesian waters to determine the condition toward oceanographic phenomenon that occurred in Southeast Monsoon. The data used are secondary data obtained from the World Ocean Atlas the form of climatological data. The data used is the temperature (oC) monthly from year 2005 to 2012 in June-August with a spatial resolution 10. The research location is determined based on the division of zoning Regional Fisheries Management or RFM. Location research adjusted for optimize the benefits of this research in pelagic fishing effort. The method used in this research is the analysis of spatial, temporal, and literature studies about the temperature gradient changes. The result show that Thermocline layer in eastern area of Indonesia found deeper than western Indonesia. Thickness of thermocline layer in western area of Indonesia has lower thickness level rather than eastern area of Indonesia.Keywords : Thermocline, Temperature Gradient, dan South East Monsoon, ITF

RETENSI PROTEIN DAN RETENSI ENERGI IKAN CUPANG PLAKAT YANG MENGALAMI PEMUASAAN Sukmaningrum S; Setyaningrum N; Pulungsari A.E
Journal Omni-Akuatika Vol 10, No 1 (2014): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The aim of this study was to investigate the effect of periodic fasting on feed protein retention and energy retention of betta fish (plakat) and the same or the best fasting regime with control on protein retention and energy retention of betta fish (plakat). The method used in this study was experiment based on completely randomized design consisting of control K (feed daily) and 3 treatments ie: P1 (betta fish (plakat) was unfed for 1 days and 6 days refeeding), P2 (betta fish (plakat) was unfed for 3 days and 4 days refeeding), P3 (betta fish (plakat) was unfed for 5 days and 2 days refeeding). Six replicates were provided for the control and the treatments. The variables observed were protein retention and energy retention. The experiments were conducted for 8 weeks. The result showed periodic fasting affect protein retention and energy retention of betta fish (plakat). Treatment P1 (betta fish (plakat) was unfed for 1 days and 6 days refeeding each week) fasting regime the same with protein retention and energy retention of betta fish (plakat). Key words: Betta fish (plakat), starvation, protein retention and energy retention

Growth Performance of Mono Sex and Mixed Sex Climbing Perch (Anabas testudineus) Helmizuryani Helmizuryani; Boby Muslimin
Journal Omni-Akuatika Vol 12, No 2 (2016): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Many factors influence fish growth like rearing by sex. This study aims to determine the growth of theClimbing perch of the different sexes. This research was conducted at hatchery business unit at MulyaPlaju, from May to July 2015. Fry spawning fish came from the wet Laboratory Faculty of Agriculture,University of Muhammadiyah Palembang. They were maintained separately between the male and thefemale and the gender-mix between male and female, reared in nets with a density of 30 individualseach net; each treatment was repeated three times. During the research, fry feed used artificial feedwith 30% protein compotition. The results showed that there was growth of female was faster than ofmale and of mixed sex. The growth of fish was 1,40 cm and weight of 4.56 gr, while survival rate ofthem was 100%. Keywords : growth, Anabas testudineus, mixed sex, mono sex

Correlation Between Paddle Wheel Operation Time with Microalgae (Nannochloropsis sp.) Growth Rate and Lipid Contents in Open Raceway Ponds Welmar Olfan Barat; Mujizat Kawaroe; Dietriech G Bengen
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Nannochloropsis sp. is one of microalgaes species with high lipid content, so it has great potential to be used as the source of biofuel. One of the microalgae cultivation system in mass scale is open raceway ponds. Problems faced in microalgae cultivation with open raceway ponds system are low productivity and the high production cost, especially high electrical energy for operating paddle wheel machine. This research studies about efficiency and effectiveness level of the cultivation system with open raceway ponds through the analysis of correlation between operational duration of the paddle wheel with growth rate and lipid content from Nannochloropsis sp.. The highest density is 530x106 cell/ml found in treatment of 45min/h. The highest growth rate is 0,45/days Which also found in the treatment of 45min/h but the treatment 45min/h is only able to survive until 12 days. The highest productivity of dry biomass is 0,25 g/L/day found in treatment of 45min/h. Meanwhile, the highest lipid content contained on treatment 15min/h is 5,19%DCW. Dominant fatty acids for all treatments are palmitic acids. The best treatment related to the use of the paddle wheel machine is 15min/h.

AKTIVITAS ANTIMITOTIK DARI EKSTRAK KARANG LUNAK GENUS SINULARIA Wendy Alexander Tanod; Remy E. P. Mangindaan; Magie Kapojos
Journal Omni-Akuatika Vol 11, No 2 (2015): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Soft coral genus Sinularia be a sources of terpenoid compounds that show efficacy in vitro cytotoxic test using cancer cell lines. The study looked at the morphological changes that occur in fungal mycelial growth of Pyricularia oryzae, such as curling effect indicating antimitotic activity. Four extracts of soft coral genus Sinularia have been examination and this is an primary test to obtain information about the soft coral genus Sinularia that used as sources of compound antimitotic. This research was conducted in several stages, ie extraction of bioactive substances, P. oryzae fungal culture test, and biological testing antimitotic activity with a qualitative assessment methods. From the examination the Sinularia 3 ethyl acetate fraction show the strongest antimitotic activity (to concentration 1,5 μg/ml). Ethyl acetate fraction was purified using column chromatography. From the examination show that fraction of ethyl acetate 1 is the best fraction because still show curling effect on concentration 0,7 μg/ml.Keywords : Antimitotic, Soft Coral, Sinularia, microtubule, Pyricularia oryzae

The Production of Organic Matter from Rhizophora mucronata and Sonneratia alba at The Kajhu and Meunasah Mesjid Villages, Aceh Besar Mai Suriani; Dietriech G Bengen; Tri Prartono
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Production and decomposition of mangrove litter could contribute organic matter and nutrients to the coastal waters. This study was to estimate the extent to which the rehabilitated mangrove of Rhizophora mucronata and Sonneratia alba contribute organic matter. This study was conducted from November 2015 to January 2016. Litter traps were used to collect the litter production and litterbags to measure decomposition rates. The results showed that the average of litter production for Sonneratia alba and Rhizophora mucronata was 4,38 g.m-2.day-1 and 3,61 g.m-2.day-1, respectively. However, Sonneratia alba apparently showed higher decay rates compare with Rhizophora mucronata. Nutrients element (N and P) released were 321,2 kg.ha-1.years-1 and 47,45 kg.ha-1.years-1 for Sonneratia alba; and 131,4 kg.ha-1.years-1 and 13,14 kg.ha-1.years-1 for Rhizophora mucronata. Overall, this study indicated that the mangrove rehabilitation in the area study contributed insignificantly carbon restocking the affected area, although it was able to provide ecological functions of this mangrove ecosystem.

Seasonal Variability of Thermocline, Sound Speed & Probable Shadow Zone in Sunda Strait, Indonesia Tri Aji; Widodo Setiyo Pranowo; Gentio Harsono; Tasdik Mustika Alam
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The Sunda Strait is an important strait connecting Karimata and Java Seas with the Indian Ocean. The Sunda Strait is one of the busiest International Sea-lane in Indonesian Archipelago (ALKI). That is used for commercial shipping lanes and possibly for the military (submarines) cruise. For submarine operational purposes, a physical oceanographic dataset is needed which consisting of temperature, salinity, and sound speed. This article is analysing the seasonal variablity of thermocline and sound speed, including a shadow zone estimation. The 0.1 deg C gradient is applied for the thermocline layer determination during four seasons data in 2014. The dataset of INDESO Project (daily, 1/12 deg) has been used. In the North-West Season (January), thermocline layer (28 - 13.5 deg C) occurs at 77 - 155 m depth, has a range of 1,542 - 1,504 m/s sound speed. Those reveals shallower (40 - 130 m depth) of the thermocline layer (29 - 15.8 deg C) during the first Transitional Season (April), with the sound speed range 1,541 - 1,511 m/s. During South-East Season (July), the thermocline layer (29 - 15.4 deg C) has been deeper again (65 - 155 m depth), with 1,542 - 1,550 m/s of sound speed. While during the Second Transitional Season (October), the upper limit of thermocline layer (27 - 13.6 deg C) is a little bit shallower (55 - 155 m depth), with the sound speed range of 1,538 - 1,504 m/s. In annual average, the thermocline (29 - 13.6 deg C) in Sunda Strait laying in between an upper limit layer of 40 - 70 m depths and a bottom limit layer of 130 - 155 m depth. Those layers depth are estimated to be a probable shadow zone area with the sound speed range upper limit of 1,542 m/s. and the lower limit of 1,504 - 1,511 m/s.

Valuasi Ekonomi Hutan Mangrove di Pulau Untung Jawa Kepulauan Seribu : Studi Konservasi Berbasis Green Economy Dandy E Prasetiyo; Firman Zulfikar; Shinta Shinta
Journal Omni-Akuatika Vol 12, No 1 (2016): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Promoting forest as one of green economy asset in Indonesia become an important agenda in the process of development. Forests have an important role as a source of foreign exchange and also as a form of natural resource wealth. The era of globalization with the accelerated economic growth increases the need for both, the fields of agriculture, infrastructure, land requirements and other sectors. Increased human needs are giving a positive correlation to the increased pressure on forests. Mangrove forests as one of the most productive ecosystems in the world are also experiencing the same threat. The expansion of settlements and ponds in coastal areas lead to degradation of mangrove forests is very high. The economic value of mangrove forests of diverse functions such as shoreline protection, habitat for aquatic organisms, carbon storage, and a variety of other functions has not been a lot of concern to the public and policy makers. This study aimed to quantify the economic value of mangrove forests in Untung Jawa Island, Thousand Islands as an effort to support the government's program to realize the green economy in the forestry sector. Method of economic calculation mangrove forests in this research is to calculate the Total Economic Value / Total Economic Valuation (TEV), which consists of direct use values (Direct Use Value) and indirect use values (Indirect Use Value). The results showed that the direct use value of mangrove forests in Untung Jawa Island is Rp. 395,126,912 which includes the value of timber, fruit value, and the value of the fishery, while the indirect use value is Rp. 7,500,600,000 calculated from the value of coastal protection, the value of foraging, conservation value, educational value, and recreational value. The total economic value (total economic value) of mangrove forests in Untung Jawa Island reached Rp. 7,895,726,912Keywords : mangrove, green economy, total economic valuation

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Kampus Perikanan dan Ilmu Kelautan Universitas Jenderal Soedirman Jl. Dr. Soeparno, Karang Wangkal, Purwokerto 53122

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Kab. banyumas,

Jawa tengah

INDONESIA