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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 236 Documents

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Effect of Land Agricultural Fertilizer on Growth of Marine Single Cell Protein, Spirulina platensis, Chlorella vulgaris and Nannochloropsis Purnama Sukardi; Ferisa Wahyunika; Tjahyo Winanto; Norman Arie Prayogo; Taufan Harisam; Arif Mahdiana; Sri Marnani
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

This study aimed to determine the growth rate and protein content in Nannochloropsis oculata, Chlorella vulgaris, Spirulina platensis were cultured using agricultural fertilizers. The agricultural fertilizers used were Urea, ZA and TSP. Each single cell protein was cultured using the three types of fertilizers with a ratio of Urea: ZA and TSP as follows (A) 1: 2: 1 [(10:20:10 g / L)], (B) 2: 2: 1 [(20:20:10 g / L)] and (C) 3: 2: 1 [(30:20:10 g / L)], respectively. The results showed that the best ratio of Urea, ZA and TSP fertilizers to growth of Spirulina, Nannochloropsis oculata and Chlorella vulgaris was C [30:20:10 (g / L)] treatment. However, phyto-protein content in Nannochlorophsis differed significantly between fertilization treatments, C fertilization yielded the highest protein content (28.75±0.05%), when compared with A (25.13±0.01%) and B (25.14±0.02%), respectively. In Chlorella vulgaris, all fertilization treatments showed very significant differences, B fertilization (28.24%±00.006) yielded the highest phyto-protein content, if compared to A (23.63% ± 0.003) and C (19.74% ±0.006 ), respectively. All fertilization treatments showed very significant differences (P <0.05) on Spirulina platensis. The highest content of phyto-protein (62.68 + 0.05%) was present in treatment C, when compared to A (52.18 + 0.05%) and B (62.37 + 0.01%) treatments, respectively.

Survival Rate and Growth of Economical Fishes in Tailing Ponds of Bauxite Post-mining in Senggarang, Tanjungpinang City Irvan Hasan Ashari; Tri Apriadi; Winny Retna Melani
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The tailing pond of bauxite post-mining in Senggarang, Tanjungpinang City, have been potency of natural feed sources from phytoplankton and zooplankton. Moreover, the water quality of the tailing pond of bauxite post-mining has begun to support fish life. The objective of this study was to determine the survival rate and growth of economical fish in tailings ponds of bauxite post-mining in Senggarang, Tanjungpinang. The research was conducted by field experiment using a completely randomized design. There were different fish varieties as treatment: tilapia (Oreochromis niloticus), gouramy (Osphronemus gouramy), and tambaqui (Colossoma macropomum). Every treatment was carried out 5 replications, with 6 fish in every cage replication. Monitoring the water quality and the fish survival on the 0th, 10th, 20th and 30th days. The survival of economical fishes in tailing ponds of bauxite post-mining from the highest to lowest were tambaqui (97%), tilapia (83%), and gouramy (40%), respectively. The growth of fishes length from the highest to the lowest were gouramy (0,223 cm), tambaqui (0,037 cm), and tilapia (0,018 cm). Meanwhile, all variety of fish tested had a decreased in weigh: gouramy -0,2310 grams, tilapia -0,4281 grams, and tambaqui -1,3498 grams. The management of tailing ponds of bauxite post-mining in Senggarang for fisheries activities can be carried out by tambaqui (C. macropomum) culture cage with several conditions such as measurement of carrying capacity and capacity, management of water quality, feed, and technical aspects of culture.Keywords: bauxite, economical fish, growth, survival rate, tailing ponds

Study of Symbiont Bacteria of Acropora digitifera Coral From Ciletuh Bay, Sukabumi by Using Culture and Molecular Approach Nurfitri Nurfitri; Fiddy Semba Prasetiya; Indah Riyantini; Yuniar Mulyani; Sulastri Arsad; Mochamad Untung Kurnia Agung
Journal Omni-Akuatika Vol 15, No 2 (2019): 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.2019.15.2.748

Bacteria are one of the prokaryotic microorganisms that are symbiotic with coral reefs. These microorganisms help corals in secreting mucus layers which are used as a place to live for bacteria and control the presence of pathogenic bacteria in corals. The purpose of this study was to determine the diversity of bacterial communities associated with Acropora digitifera corals in Ciletuh bay, West Java, by culture approach. Sampling was carried out at a depth of 4 meters. Morphology-based identification and molecular approach based on sequence of the small ribosomal unit (16S) rRNA gene were used to determine the bacterial species in the samples. A total of six pure isolates were identified based on morphological observation and the molecular DNA characteristics from three of them were identified with 16S rRNA gene sequences. The identification using 16S rRNA gene showed that the isolate ACD.P4.PH7.P had a close relationship with the BF strain and zb strain of Bacillus flexus (acc number MH569560.1) with a similarity of 85.44 %. While ACD.P4.PH9.P isolate has a close relationship with Bacillus sp. c234 (acc number FJ950647.1) with a similarity of 98.50 %. Additionally, ACD.P4.PH9.K isolates closely related to Bacillus sp. of strain 6RM1 (acc number MK134607.1) with a similarity of 94.78 %. This study also revealed that both microscopic identifications by morphological traits and molecular approach using 16S rRNA gene can be used in bacterial diversity assessment.

The Utilization of Native Freshwater Mussel Pilsbryoconcha exilis as Biocontrol of Pathogenic Bacteria Aeromonas hydrophila in Tilapia Aquaculture Rahman Rahman; Filibertus Tantio; Munti Yuhana; Amalia Putri Firdausi; Ranta Sumadi; Adna Sumadikarta
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

This research aims to evaluate the capacity of freshwater mussel Pilsbryoconcha exilis as a biocontrol agent to prevent the transmission of Aeromonas hydrophila in tilapia cultivation. Briefly, 10 tilapia fish with average bodyweight 7,88±0,25 g were subjected to four treatments in the 8-liter aquarium with three replications in a randomized design trial. The treatments were M1 (one mussel for a two-liter of water), M2 (two mussels for a two-liter of water), and two control treatments without mussel ( M+ and M-). All treatments, except the M-, then challenged by adding A. hydrophila live culture to obtain a final density of 105 CFU mL-1 into the aquarium for 7 days duration. The final survival rate of fish, the water-total bacterial count, and the blood profile of animals were assessed. The research revealed that there is a significant impact from the presence of freshwater mussel on tilapia cultivation. Generally, the M2 treatment showed better results with a significant different (P<0,05) according to the survival rate of fish (100±0,00%), water-total bacterial count (4,53±0,03 log CFU mL-1), and fish leucocytes (4,30±0,70x104 cell mm-3). Nonetheless, there was no different (P>0,05) effect on fish erythrocytes among the treatments. Therefore, the feeding activity of freshwater mussel in the water column able to deplete pathogenic bacteria abundance and prevent pathogen transmission along with increasing the survival rate of fish.

Numerical Simulation of Ocean Wave Using High-Order Spectral Modeling Techniques: Its Influence on Transport Sediment in Benoa Bay, Bali, Indonesia Ulung Jantama Wisha; Try Al Tanto; Widodo Pranowo; Semeidi Husrin; Gunardi Kusumah; agus Maryono
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Benoa Bay is threatened by sedimentation issue within the bay. It impairs the water mass circulation, influencing scour, mixing, and turbulence as well as sediment transport processes. This study focuses on the wave characteristic and its relation to sediment transport within Benoa Bay. Spectral wave modeling techniques were employed. The equation was discretized based on the condition of winds, tidal, and currents. Total sediment transported was calculated according to the wave model result. Total suspended sediment (TSS) model was simulated which the simulation considers bed load and suspended load transport. Significant wave height (Hs) ranged 0-0.48 m and 0-0.44 m during high tidal condition and low tidal condition respectively. Wave undulation propagates toward the West and Northwest within Bay. The wave period (Ts) ranged 2-6.5 second. Total sediment transport ranged 2828.16 - 86235.66 m3/year. TSS concentration ranged 1-100 mg/L and 1-155 mg/L during high tidal condition and low tidal condition respectively. Those conditions indicate that the sedimentation has been extremely occurred within the bay. The areas around Benoa peninsula, Benoa harbor, and Serangan Island are heavily polluted by suspended sediment. Bottom sediment is stirred by hydraulic jump off wave propagation. The first wave crest induces scour, which its train carries the stirred sediment entering the bay. If ongoing, this condition will exacerbate the existing ecosystem. Benoa Bay development has a big role evoking the level of TSS and turbidity. The more the sedimentation occurs, the more the ecological problem takes place.

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

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Kab. banyumas,

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INDONESIA