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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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Molecular Characteristics of Indonesian Isolate Enterocytozoon hepatopenaei Based on Sequence Analysis of 18S rRNA Genes Yohanes Kristiawan Artanto; Slamet Budi Prayitno; Sarjito Sarjito; Desrina Desrina; Alfabetian Harjuna Condro Haditomo
Journal Omni-Akuatika Vol 15, No 1 (2019): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

ABSTRACT Enterocytozoon hepatopenaei (EHP) infection have been reported as an obstacle of whiteleg shrimp (Penaeus vannamei) culture in Indonesia. However, understanding of the molecular characteristics of EHP species in Indonesia is not widely known. The aims of this study were to determine the identity and characters of DNA, and their phylogeny of EHP species from several different locations in Indonesia with specific references to 18S rRNA gene. The EHPs were collected from cultured P.vannamei from Lampung, Pangandaran, Sidoarjo, Banyuwangi, Probolinggo, Blitar, Makassar, and Lombok. Thirteen (13) samples were randomly selected to explore their gene characters through 18S rRNA gene sequencing. The primers used were EHP_F and EHP_1R. Parameter observed were DNA sequencing, nucleotide sequence homology with related available genes in the Gen Bank database, multiple sequence alignment, and reconstruction of genetic relationship trees. DNA sequence homology analysis showed that all samples had 99.89-100% similarity to Indian Enterocytozoon hepatopenaei (Accession Number MH259890.1 and MH260592.1). The alignment results illustrated that all EHP sequences of Indonesian isolates were 100% identical each other. The phylogenetic tree topology provided information that all sample accessions were in the same clade and spread evenly. The conclusion were that the Indonesian EHP species were identical (100%) and it could be said that they were genetically homogeneous. Keywords: Enterocytozoon hepatopenaei, 18S rRNA gene, Indonesia.

Structure and Variability of Indonesian Throughflow in Labani Canal Rizqi Rizaldi Hidayat; Mukti Trenggono
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Libani Canal is one of the areas which the flows water masses of the Pacific Ocean toward Indonesian seas. The existence of Mindanao current that affects an input of Indonesian Through-flow should be predicted. The influence of climate change on large scale circulation will affect the variations of physical condition. This study focused to investigate the variation of meridional Libani Current at 30 levels deep based on INDESO models data from January 2007 to January 2014. An area of interested was located at 4.16 °S and 117.92 - 119.42 °E. The results showed a strong current average reaches 0.5 m/s with a north-south orientation as the impact of bottom topography. Variations of current through Fourier analysis showed the annual and inter-annual fluctuations in the 365 days and 120-200 days related impacts strong El-Nino in 2009-2010. Spectrum energy density peaks in the 3 days and 53 days period that indicated as the impact of intra-seasonal variations.

Carbon Content In Macroalgae Species Against Temperature Regime Tri Dewi Kusumaningrum Pribadi; Yudi Nurul Ihsan
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Temperature rise due to climate change have an impact on various ecosystems, including coastal ecosystems. Temperature rise also affects plant metabolism, such as carbon uptake. Macroalgae is the dominant community in the intertidal zone, and potential to absorb carbon. A series of experiments on several dominant macroalgae species from the south coast of West Java have been done to see the effect of temperature regime on carbon content. The treatment of temperatures of 24, 27, 30, and 33 °C was carried out for 72 hours against 6 macroalgae species representing Chlorophycae, Phaeophycea and Rhodophyceae to investigate carbon content. The results showed that the macroalgae of Phaeophyceae division showed higher carbon content in comparison to the macroalgae of the other divisions. The temperature that significantly affects chloropyll was 33 oC against all the species being tested.

Composition of Microplastics Of Coastal Sediments In Kupang and Rote Isalnd, East Nusa Tenggara Tombus Lucas Anggara; Lintang P. S. Yuliadi; Yudi Nurul Ihsan; M. Rudyansyah Ismail
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.2019.15.2.707

This research was conducted at the Kupang dan Rote Islands, East Nusa Tenggara in June until November 2018. This research using Wet Peroxide Oxidation methods and aims to obtain data on microplastics distributin that accumulates in coastal sediments in Kupang and Rote Islands. A result of this research shows that the lowest coast is Ndana Beach at 5 particles/400gr and Pasir Panjang has the highest microplastics abundancre of 23 particles/400gr. A microplastics obtained are fragments, fibers and films but for films that are obtained in 2 stations is Oenggae Beach and Pasir Panjang Beach. A microplastics colors obtained are black, blue, yellow, red, green and white and for sizes small microplastics dominant in all stations. Keywords: Kupang and Rote Island, Microplastic, Coastal Sediments, Wet Peroxide Oxdation

Biological and Health Impact of Astaxanthin Powders in Common Carp Cyprinus carpio L. Avan Aladin Sadraddin; Bakhan Rafiq Hassan; Shaima Saleh Mahmood; Nasreen MohiAlddin; Raber Mahmud Rashid; Karzan Namiq
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.2019.15.2.737

The effect of astaxanthin powders on biological, health and growth parameter of common carp Cyprinus carpio L. Fish weight varied between (59.2 –66.4gm)were studied for 10 weeks. four treatments(three replicates/treatment) were employed as follows: T1: Diet without any addition, T2: adding 2.5 gm astaxanthin powders / kg diet, T3: adding 5 gm astaxanthin powders / kg diet, T4: adding 7.5gm astaxanthin powders / kg diet. Twice daily feeding at 9:00 a.m. and 2:00 p.m. should be considered that the feeding rate of biomass weight after each took biometrics. Finally, blood samples were taken from the caudal vein of fish. The results showed no significant difference between treatments in terms of biological parameter (p>0.05). The results showed significant difference between treatments in terms of body indices, including Gonadosomatic, but no significant difference (p>0.05) Hepatosomatic, Spleenosomaticindex and Gill index. The results showed a significant difference between treatments in terms of growth performance (p<0.05), including weight gain, Relative growth rate and Specific growth rate. Group results of blood factors showed that between Granulocytes, Lymphocytes and Monocytes there was no significant difference between treatments (p>0.05). Lastly, we found that diets containing higher levels of Astaxanthin powders improve the growth performance, biological and GSI in common carp Cyprinus carpio L.

Relationship of Distribution Seagrass Species with Dugong (Dugong dugon) Sighting at Liki Island-Papua Aditya Hikmat Nugraha; Ilham Antariksa Tasabaramo; Udhi E Hernawan; Susi Rahmawati; Andri Irawan; Juraij Juraij; Muta Ali Khalifa; I Wayan Eka Dharmawan; Risandi Dwirama Putra; Devia Hartono Puteri
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.2019.15.2.730

Dugong dugon is a herbivorous marine mammal. One of Dugong's favorite foods is seagrass. This study examines the distribution of seagrass species to dugong sighting in Liki Island. The study was conducted in November 2018. Observation of seagrass conditions was carried out using a line transect method and a 50x50 cm transect with a distance interval between 10 m plots. Interviews were also conducted with the community to find out the location of Dugong presence in Liki Island. There are seven species of seagrass found in Liki Island :Enhalus acoroides, Cymodocea rotundata, Thalassia hemprichii, Halophila ovalis, Halodule uninervis, Halodule pnifolia and Syringodium isoetifolium spread over four observation stations. The results showed that Dugong in Liki Island is often found during the eastern season, they often appear in seagrass ecosystem area to do eating activities. Dugong is often found in the eastern part of Liki Island (Station 4) and sometimes also found in the western part of Liki Island (Station 3).Keywords:biodiversity,Dugong dugon, liki, papua, seagrass

The potency of Soft Coral Sarcophyton in Krakatau Seas as Cytotoxic Test Tri Nur Sujatmiko; Tio Dwi Wibisono; Ariefianto Tri Mahadi; Paradita Hasanah; Hedi Indra Januar; Neviaty Putri Zamani
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Soft coral is one of the marine organisms that produce secondary metabolites materials and has potency as anticancer. There is much research to find bioactive compounds in the organism, but it still lacks data to find potency of bioactive in soft coral that lives under acidification pressure. The objectives of this study are to determine the characteristic of acidification in Krakatau seas and to assess the potency of cytotoxic activity from soft coral Sarcophyton. Sampling was conducted in three locations, Legon Tuo, Legon Cabe, and Umang-umang Island, to take the sample and measure water quality. Cytotoxic test using MTT method (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolinon) to MCF-7 cancer cell line to measure growth inhibition percentage. Data were analyzed using ANOVA, post hoc analysis, and multivariate analysis. Water quality in Legon Tuo and Legon Cabe have significant different to Umang-umang Island. However, Legon Tuo and Legon Cabe are suitable as acidification site, while Umang-umang Island as the reference site. The characteristic of Krakatau seas, especially in Legon Tuo and Legon Cabe study site, was categorized in low acidification. In the cytotoxic activity, soft coral Sarcophyton from Legon Cabe (acidification site) is more potential than soft coral from Umang-umang Island (reference site).

Quality Improvement of Catfish Floss (Clarias gariepinus) Through Oil Reduction Technology with Spinner and Press Tools Romadhon Romadhon; Ulfah Amalia; Apri Dwi Anggo
Journal Omni-Akuatika Vol 15, No 2 (2019): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The nutritional content of catfish allows this freshwater fish to be processed into a variety of products, one of which is fish floss. Fish floss is a product that is popular among the people so that many use it for sale and increase income. However, unfortunately many fish floss products that are of poor quality, for example, oil appeared in the packaging which consequently makes the fish floss products quickly rancid. The purpose of this study was to determine the optimal shelf life of floss catfish with the best quality. The experimental laboratories of this study was divided into three treatments: spinnered, pressed and combination of spinnered and pressed. The quality of fish floss were observed every 12 days for 48 days.The results showed that there were significantly effect of floss catfish with different treatments of oil reduction. The best quality of floss catfish was achieved at 36 days storaging, with an average value of water content 4.99%, 28.39% of protein content, 9.15% of fat content, 4.99 meq kg-1 of peroxide value and total plate count 6.9 x 10-3 cfu g-1.

Identification and Prevalence of Parasites Isolated from Eels (Anguilla bicolor) Along Migrated Pathway at Serayu River, Central Java Ikhsan Pratama; Slamet Budi Prayitno; Hamdan Syakuri
Journal Omni-Akuatika Vol 15, No 1 (2019): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Eels especially Anguilla bicolor has been a major capture species along the migration pathways at Serayu river for both consumption and aquaculture purposes. Yellow eels always exhibited a strong and health when they were caught. However, mass mortalities always found during holding and culture period. Parasites was one of the obstacles of the eels aquaculture. The aims of this study were to observed the health status and parasites investation of eels along the migration pathway. Three capture stations namely Adipala, Sampang and Purwojati were appointed as a sampling sites. Thirty captured eels ranging from 25.48 cm – 28.92 cm were randomly selected at each sites during October to December 2018.Ninety eel samples demonstrated in a good health. Ectoparasites observation discovered that Trichodina was the predominant parasites. Further indentification revealed that they were belongs to T. matsu, T. domerguei and T. jandarica with prevalence rate ranged from 40% to 90%. Whilst Vorticella found at low prevalence and intensity namely; 6.7% and 0.2 respectively. The endoparasites nematodes obtained were Anguillicola and Spirocamallanus with prevalence rate and intensity 3.3%-6.7%, 0.03 – 0.06 and 13.3%, 0.13 respectively. Molecular identification of nematodes demonstrated that they were closely related to Anguillicola crassus and Spirocamallanus philppinensis with similarity 95.40% and 97.93% respectively. There were no genetically differences between two species Anguillicola crassus from Adipala and Sampang. From this study it can be seen that Eels migrated upstream were in a good heatlh. Trichodina, Vorticella, Anguillicola and Spirocamallanus found infestated eels during upstream migration.

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

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