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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 15 Documents

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Search results for , issue "Vol 14, No 3 (2018): Omni-Akuatika November" : 15 Documents clear

Substitution of Fish Meal with Chicken Feather Silage Meal on Feed Can Improve Growth Performance of Striped Catfish (Pangasius hypopthalmus) Diana rachmawati; Istiyanto Samidjan; Dicky Harwanto; Hadi Pranggono
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The purpose of this research is to study the effect of substitution of fish meal with silage meal of chicken feathers on feed to protein digestibility, growth and survival rate of striped catfish (Pangasius hypopthalmus). The test fish used is catfish with an average weight of 2.31 ± 0.04 grams /fish. This research used experimental method with Completely Randomized Design, 5 treatments in triplicate. The treatments in this study were substitution of fish meal meal with different dose of chicken feather meal, namely A, B, C, D and E (0%; 25%; 50%; 75% and 100% silage meal of chicken feathers, respectively). Parameters observed included relative growth rate (RGR), feed conversion ratio (FCR), protein efficiency ratio (PER), Apparent Digestibility Coefficient of Protein (ADCP), and survival rate (SR) of catfish. The results showed that the substitution of fish meal with chicken feather silage meal was very significant (P <0.01) to RGR, FCR, PER, and ADCP, but no significant effect (P> 0.05) on SR of catfish. Dose 25% silage chicken feather meal in the feed is the best dose to improve the RGR and ADCP of catfish. Water quality during the study is still within a reasonable range for catfish culture.

The Phosphorus and Sulphur Distribution and Culturable Bacterial In Time Chronosequence of Ex-Tin Mining Ponds Andri Kurniawan; Oedjijono Oedjijono; Tamad Tamad; Uyi Sulaeman
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The tin mining had caused ecological changes that can be occured to macro- and microecosystem. This article aims to study the pattern distribution of element of phosphorus (P) and sulphur (S) and also to identify culturable bacterial that were isolated form ex-tin mining ponds in time chronosequence. The elemets of P and S were detected by X-Ray Fluorescence (XRF) and the bacterials was isolated in medium agar and biochemistry identification by microbact. The concentration of element of P and S showed the average of P concentration increased in time chronosequnce of ex-tin mining ponds, whereas the average of S concentration showed dynamic pattern. In ex-tin mining pond with age < 1 year the average concentration of P was 33,725 mg.L-1 and S was 311,45 mg.L-1. In ex-tin mining pond with age 5-10 years were P (59,8 mg.L-1) and S (451,75 mg.L-1). In ex-tin mining pond with age > 15 years were P (67,44 mg.L-1) and S (386,125 mg.L-1). While, the culturable bacterials were Kurthia spp; Actinobacillus equuli; Bacillus amyloliquefaciens; Bacillus spp; Micrococcus sp; Enterobacter gergoviae; Veillonella sp; Enterobacter aerogenes; Moraxella bovis; Nitrobater spp; and Enterobacter agglomerans.

Moina sp. Powder Supplementation as Artemia sp. Substitute Through Growth, Lysine, Histidine, Methionine, and Leucine Amino Acid Contents in Tiger Grouper x Camouflage Grouper Hybrid Larvae (Epinephelus fuscoguttatus x Epinephelus microdon) Shobrina Silmi Qori Tartila; Shobrina Silmi Qori Tartila; Arga Iswara; Frida Choirun Nisa'; Nofita Irmayani Herlambang; Mochammad Amin Alamsjah; Agustono Agustono
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Tiger Grouper x Cammouflage Grouper (TGCG) (Epinephelus fuscoguttatus x Epinephelus microdon) production is still low nowadays due to the insufficient price of the live feed supply during the larval phase, which is nauplii Artemia sp. One of the live feed types which is able to become a substitute of nauplii Artemia sp. is Moina sp., which has better lysine, histidine, methionine, and leucine contents, besides having the sufficient price for the supply itself. However, Moina sp. is unable to survive in the high salinity, thus it has to be produced as a powder. This condition leads to a further research whether to observe that the Moina sp. powder supplementation is able to become nauplii Artemia sp. substitute through the increased growth and the optimum better lysine, histidine, methionine, and leucine contents in TGCG larvae. The research was conducted using the complete randomized design experimental method. The result showed that Moina sp. powder is compatible as good substitute candidate of nauplii Artemia sp., as it increased the larval length growth, even it had no difference in weight growth, but it was also able to increase the larval lysine, histidine, methionine, and leucine contents.

The Chemical Composition of Gracilaria verrucosa Extract and its Utilization on Survival and Growth Litopenaeus vannamei Jasmanindar, Yudiana; Sukenda, Sukenda; Alimuddin, Alimuddin; Junior, Muhammad Zairin; Utomo, Nur Bambang Priyo
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The Gracilaria genus is a potential source of natural and environmentally-friendly alternatives in improving the survival and growth of shrimp. This study aims to identification immunostimulant molecules extract G. verrucosa and evaluate the utilization of G verrucosa extract as an immunostimulant in improving survival and growth of L. vannamei. Seaweed extraction used ethyl acetate then formulated in the diets. The immunostimulant molecule in the G. verrucosa was analysis. The shrimp were fed a test diet containing extract G. verrucosa at a dose of 2 g kg-1 or extract G. verrucosa-free control diets for 42 days. Shrimps were fed diets containing extract with a specific duration. The observation on the survival and growth of L. vannamei was performed after maintenance at the Laboratory for six weeks. Following, diets containing extract was tested in the field (pond shrimp farm) at the same dose of extract for 58 days. Shrimp was feed diets containing extract once a week, once in the early culture, and diet control, then the survival and growth shrimp were analysis. Concentrations of sulfates and carbohydrates in G. verrucosa ethyl acetate-extract were 24.21% and 13.41%, and crude protein 3.64%. GC-MS pyrolysis results show that G. verrucosa polysaccharide is similar to immunostimulant molecules. The survival shrimp gave diets containing G. verrucosa extract formulation was higher than that of shrimps fed controls diet. The Shrimp fed diets extracts have higher growth than shrimp given control dietsKeywords: Gracilaria, extract, polysaccharides, immunostimulant

The Influence of Meteorology-Oceanography Factors on Spatial Distribution of Oil and Grease Pollutant in Donan Estuary, Cilacap Mukti Trenggono; Melody Virginia; Agung Dhamar Syakti
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Donan Estuary is one of the watershed impacted by anthropogenic activities which more particularly from industry and shipping releasing environmental pollutants i.e. oil and grease. Analysis of oil and grease distribution due to meteorology-oceanography factors used spatial analysis method from primary data was taken on June 2017. This research aims to understand the spatial distribution of the concentration of oil and grease in Donan Estuary and to asses the influence of meteorology-oceanography condition on oil and grease distribution. Our research showed oil and grease concentrations varied among the studied area. The higher concentration of oil and grease were found at station 3 while lower concentration was observed at station 12, closed to Penyu Bay. Accordingly, such differences might be due to the different sources of pollutants and different meteorology-oceanography parameter characteristics that affect oil and grease distribution. For instance, oil and grease concentration was inversely proportional to current velocity. Based on tidal current, oil and grease were move forward to the South, West and South East at low tide and move to North and West at high tide. We noted that the direction of wind gave the low influence to oil and grease movement. The high concentration of oil and grease in each station were followed by Total Suspended Solid (TSS) enhancement. On the other hand, temperature has an effect on evaporation process of oil and grease volatile fraction.

Distribution Of Batillaria Zonalis (Mollusca : Gastropoda) on Avicennia Marina (Forsk.) Vierh In The Coast Of Banggi, Rembang, Central Java Dafit Ariyanto Ariyanto; Dietriech Geoffrey Bengen; Tri Prartono; Yusli Wardiatno
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Mangroves prove a habitat for Batillaria zonalis as nursery ground, feeding ground and reproductive ground. This research was conducted from September 2016 - August 2017 and to determine the spasial and temporal pattern with based on mangrove zone and environmental characteristics. The gastropods and environmental characteristics were analyzed using Principal Component Analysis (PCA). The results showed that significant changes in gastropod assemblages were primarily due to changes in the water quality and season. Correlation between gastropod and physico-chemical parameters in A. marina revealed significant relationship with gastropod B. zonalis distribution.

Change of Fatty Acids Compositions (Omega 3, 6, 9) from Milkfish (Chanos chanos Forsk) Bekasam Fermented with Different Carbohydrates Sources Saga Gerlaping Negari; Eko Nurcahya Dewi; Laras Rianingsih
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Bekasam is one of fermentation products made from Milkfish (Chanos chanos Forsk). The aim of this study was to determine the effect of different sources of carbohydrates on fermented waste to fatty acid composition. The method used was experimental laboratories using Completely Randomized Design. The treatment applied was the use of different carbohydrate sources of rice, brown sugar and garlic in the milkfish bekasam production using 3 repetitions. The data were analyzed using Analysis of Variance and continued by Honestly Significant Difference test if there was any effect on the treatment given. The results showed that the difference of carbohydrate sources during fermentation process could affect the composition of fatty acids. Lactic acid bacteria use carbohydrate sources as energy to grow and then hydrolyze fat into fatty acids. The best result was bekasam with the sources of carbohydrate of rice with total value of Lactic Acid Bacteria 7,888 log cfu/g, Total Volatile Base Nitrogen value 34,796 mgN/100ml, lipid content 0,055% and the highest fatty acids compositions. The results of the study showed that the use of different sources of carbohydrate on bekasam had significant effect (P<5%) on the fatty acid composition on bekasam.

Marine Bioremediation in Indonesia : Die Before Blossom Agung Dhamar Syakti
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

This critical review highlighted the need to booster an application of the environment biotechnology in order to reduce petroleum hydrocarbons contamination in marine environment. Marine bioremediation can be promisingly applied when the spills occurred. However, absence of policy support from Indonesian government to endorse the private actor’s liabilities when complying the rehabilitation action was no significance while academic research was still far from establishment of fundamental knowledge in marine bioremediation. Thus, if so, it very likely that bioremediation disciplines and application might “die before blossom” in a country that often confronted by the maritime risk contamination of petroleum hydrocarbons on their marine and coastal area.

Effect of Different Doses of Fermented Organic Feed on the Growth Performance of Oithona sp. in Semi-Mass Culture Condition Suminto Suminto; Diana Chilmawati; Dicky Harwanto
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

This research was aimed to know the effect of different fermented organic feed on the growth performance of Oithona sp. in semi-mass culture condition. The Oithona sp. cultures were fed with mixed organic fermentation of pulp, bran and fish meal by using probiotic microbes and phytoplankton cells. There were 4 treatments and 4 replicates. Treatment A was the Oithona sp. cultured with added Chaetoceros calcitrans cells without fermented organic feed (0 g ∙ L–1 of medium culture). While B, C, and D were added with the same numbers of that C. calcitrans cells of 2x106 cells ∙ mL–1 and 0.5 g ∙ L–1, 1.0 g ∙ L–1, 1.5 g ∙ L–1 of fermented organic feed, respectively. The results showed that the dosage of fermented organic feed had significantly different effect (P < 0.05) on the growth performance of Oithona sp. culture. The best growth performance of Oithona sp. showed by adding 0.5 g ∙ L–1 of fermented organic feed, with total density of 7.09 ± 0.11 ind ∙ mL–1, population growth rate of 0.116 ± 0.002 ind ∙ d–1 and eggs production of 7.88 ± 0.93 eggs ∙ ind–1 of adult.

Detection of Eutrophication In Benoa Bay - Bali Yulianto Suteja; I Gusti Ngurah Putra Dirgayusa
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Eutrophication is an increase of organic material caused by the increase of nutrients in aquatic ecosystem by human activities. One effect of eutrophication is Harmful Algae Blooms (HABs) that are very harmful to the environment and humans. The Purpose of this study were determine spatial distribution of nutrient based on total nitrogen (total N) and total phosphate (total P), ratio of total N, and trophic level in Bay Benoa. Nutrient measurements were using spectrophotometric method. The Spatial distribution of total N and P show a generally pattern concentration increases in waters near the mainland. The highest concentrations of total N and P were found in Loloan River estuary closed to the floating net cages (FNC). Ratio of total N showed generally that the waters in Benoa Bay were dominated by Nitrate. High ammonia concentration was found in all rivers and Loloan River estuary. Benoa Bay is mostly in Oligotrophic conditions based on total N, while eutrophic conditions were only found in the Loloan River estuary. Based on total P, Benoa Bay was generally in hypertrophic level.

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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