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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 290 Documents

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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.

Spawning Potential Ratio of Feather Back (Chitala Lopis) at Kampar River, Riau Andri Warsa; Endi Setiadi Kartamihardja; Arif Wibowo
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The feather back, Chitala lopis is an important economic fish, inhabit Kampar River and its population tend to decrease so that management and conservation efforts should be conducted. Limited data of the feather back is one of the problems in formulating the management of the population. Spawning potential ratio (SPR) approach is an option being used in the management of the fish stock in the poor data. The study aimed to analysis spawning potential ratio of the feather back in Kampar River, Riau. The research has been conducted in May, August and October 2016. The total length at first capture (Lc) of feather back was less than the total length at first maturity (Lm) with the SPR value of 5 %. This condition could impact to decreasing the feather back stock. The SPR value should increased more than 20 % so the feather back population would been stable. Regulation of the fisheries was mainly limited mesh size of the gillnet operated should be applied.

The Ability of Gracilaria Sp. to Absorb Ammoniac (NH3-N) and its Effect on Chlorophyll Content and Growth Yudi Nurul Ihsan; Rizky K. Bangsa; Kalysta Fellatami; Tri Dewi K. Pribadi
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

One of the most commonly found component of domestic waste in coastal areas is ammoniac. Phytoremediation techniques can be done to reduce ammoniac concentrations. In this research, the technique uses the macroalgae Gracillaria sp. This study aims to measure the optimum ability of Gracillaria sp. to absorb ammoniac and its effect towards the primary productivity of water exposed to ammoniac. The research was done by comparing the reduction of ammoniac in seawater, which is used as a medium of experiment for 120 hours, with the ammoniac concentration in Gracillaria sp. The research method used was an experimental method with a completely randomized design of four treatments and three repetitions. The effectiveness results of ammoniac reduction by macroalgae in treatment A, B, C and D are 41.21%, 50.27%, 47.37% and 43.05% respectively. The initial concentration results of ammoniac in Gracillaria sp. was 20.75 mg/kg and the final concentrations in treatment A, B, C and D were 21.08 mg/kg, 21.20 mg/kg, 22.87 mg/kg and 24.44 mg/kg respectively. The measurement results of chlorophyll-a concentration in water coloumn ranged between 0.015 - 0.027 mg/l.

Genetic Population Structure of Yellowfin Tuna (Thunnus albacares) as Based Data of Fish Conservation in North Mallucas Sea Nebuchadnezzar Akbar; Muhammad Aris
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Tuna is a migratory species with high economic value. Utilization of tuna is increasing and growing every year. Fishing intensity of tuna in the Maluku Sea is high and can disrupt the population. The existence of the population will be threatened if not managed properly. The latest genetic information approach is necessary to prevent the population decline. The purpose of this research was to know the genetic structure of yellowfin tuna in North Maluku waters, Indonesi. Sampling was conducted in May-July 2016 in Morotai Island, Obi and Sanana, while secondary data was gathered in Ternate Island, Bacan and Ambon. A total of 72 samples were collected and analyzed. The result of the study found that the base length (bp) of the control region of mtDNA was found to be 512 bp (base pairs). the genetic distance in the nearest population is at Sanana and Obi (0.025). The results of genetic distance analysis between population found genetic similarity between Morotai-Sanana (0,021), Obi-Sanana (0,025), Obi-Morotai (0,026) and Ambon-Sanana (0,026), while the furthest genetic distance was found in Ternate-Bacan (0,040) and Ternate-Obi (0,042). The pairwise comparison test (Fst) shows a few genetic differentiation between yellowfin tuna populations. The value (Fst) of the yellowfin tuna population shows a strong gene flow between populations. The haplotype distribution shows a relationship between haplotypes in both yellowfin tuna, thus failing to show clade between different geographic locations. Unsustainable use can harm the population through genetic quality. Several approaches should be taken to support the life cycle of yellowfin tuna. The overall result shows that there has not been any change of genetic structure of yellowfin tuna in North Maluku Sea. Keywords : Haplotype, genetic distance, North Maluku, yellowfin tuna, pairwise comparison test

Inventory of Epiphytes Aquatic Microfungi in Pond of Tailing Bauxite in Tanjungpinang, Bintan Island, Riau Islands Province Rima Aryani; Tri Apriadi
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20884/1.oa.2018.14.3.595

On the washing process of bauxite mining will produce waste, that was red mud. Those red mud will be streamed in pond of tailing bauxite. Eleocharis sp. has been pioneer plant in pond of tailing bauxite. The objective of this study was identify the epiphytes aquatic microfungi in pond of tailing bauxite, at Tanjungpinang, Bintan Island. Samples were collected by three different stations from Eleocharis sp. density with three samples points in each stations. In this research, the results of epiphyte aquatic microfungi were cultured got five genera and six different species of aquatic microfungi, such as Mucor sp., Curvularia sp. (1 and 2), Phialophora sp., Phoma sp., and Arthrographis sp.Keywords: aquatic microfungi, bauxite, Bintan, Eleocharis sp., tailing

Growth increase of Silver Pompano (Trachinotus blochii) Stimulated by Recombinant Growth Hormone (rGH) Addition on Their Commercial Feed Wiwin Kusuma Atmaja Putra; Tengku Said Raza'i
Journal Omni-Akuatika Vol 14, No 3 (2018): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The aims of the study was to determine the effect of recombinant growth hormone (rGH) on the growth of Silver pompano (Trachinotus blochii). This research was conducted using Complete Random Device) design experimentation i.e. control (non rGH), A (2 mg.kg-1), B (of 3 mg.kg-1), and C (4 mg.kg-1) of feed dry wieght (w/w) by four individual restating (each test 15 fish). Several parameter was observeb included absolute Growth, Specific Growth, feed convertion ratio, survival rate, mortality and water quality (DO, pH, temperature and salinity). The results showed that treatment C resulting an absolute growth of 19.9 g with a specific growth 0.71 g/ day). Feed convertion ratio was 5.8 while survival rate was 16.67% and Mortality reached 83.33 %. Results The analysis of water quality parameters are range DO (5.2-7.1mg L-1), salinity (25-28 ppt), pH (6.8-7.1) and temperature (30-31.2° C). Reviews These results indicate that rGH can increase the growth S. pompano fish compared to the control treatment.Keyword: recombinant Growth Hormone, Growth, Silver pompano

Page 14 of 29 | Total Record : 290

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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