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Omni-Akuatika
ISSN : 18583873     EISSN : 24769347     DOI : -
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 265 Documents
Pengaruh Aerasi Injeksi Udara terhadap Beberapa Parameter Kualitas Air di Lokasi Budidaya Ikan Waduk Ir. H. Djuanda Lismining Pujiyani Astuti; Niken TM Pratiwi
Journal Omni-Akuatika Vol 12, No 3 (2016): Omni-Akuatika Special Issue Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (526.028 KB) | DOI: 10.20884/1.oa.2016.12.3.127

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Waste of fish farming in floating net are fish feces, urine and undigested feed which is one source of organic matter inputs in Ir. H. Djuanda. Waste organic materials can cause eutrophication of waters. Air injection is one way aeration to increase oxygen to help the process of organic matter decomposition. The purpose of this study was to assess the effect of air injection on some parameters of water quality in fish farming side. This research was conducted at the location of fish farming Ir. H. Djuanda in June-September 2013. Injection of air using a compressor with a pressure of 3 atm as a source of air and perforated pipe at a depth of 3.6 m. Air injection carried out for 8 hours. Observation point vertically at a depth of 3.6 m and horizontally at a distance of -1.5 m (behind the diffuser pipe); 0 (the diffuser pipe); 1.5 m (right and left pipe); +1.5; +3 And +6 m (in front of the pipe diffuser) and a distance of 17 m of pipe which is control. After eight hours of aeration showed that the concentration of organic matter, free carbondioxide, N-NO2 tend to belower in cages aerated but N-NO3 concentration was higher in locations aeration cage than controls cageKeywords: air injection aeration, water quality, fish cage culture, Ir. H. Djuanda Reservoir
6-Desaturase-Like Encoding Gene Introduction in Catfish (Clarias gariepinus) Anny Hary Ayu; Alimuddin Alimuddin; Dedi Jusadi
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.456 KB) | DOI: 10.20884/1.oa.2017.13.2.188

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African catfish (Clarias gariepinus) is one of the economically valuable aquaculture fish species in Indonesia. This research was aimed to produce F0 transgenic catfish carrying masou salmon Δ6-desaturase-like (OmΔ6FAD) gene. The Δ6-desaturase enzyme is involved in highly unsaturated fatty acid biosynthesis. Transgenic catfish was produced by sperm-mediated gene transfer using electroporation method. In this study, as the first step, sperms were electroporated with three different OmΔ6FAD concentration (25, 50, and 100 µg mL-1) to have the highest sperm viability after electroporation (125 V/cm, pulse frequency 5 times, pulse length 30 millisecond, pulse interval 0.1 second). The highest sperm viability and sperm carrying OmΔ6FAD were obtain at 100 µg mL-1. This concentration was then used to produce F0 transgenic catfish in the second step. Sperm motility, sperm viability, fertilization rate, hatching rate, and larval survival at 14 days after hatching were the same as the controls (p>0.05). Genomic DNA was extracted from caudal fin and then used as template to identify transgenic F0 by PCR method using specific primer for OmΔ6FAD gene. The PCR result showed that 53.84% of F0 carried OmΔ6FAD gene. The result of fatty acid analysis showed that EPA and DHA contents of F0 transgenic fish and non-transgenic fish were similar. Keywords: catfish, Δ6-desaturase-like gene, fatty acids, electroporation
SEBARAN SUHU DAN SALINITAS DI PERAIRAN UTARA IRIAN JAYA Muh Hatta
Journal Omni-Akuatika Vol 10, No 1 (2014): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (658.24 KB) | DOI: 10.20884/1.oa.2014.10.1.16

Abstract

Bioekologi Fitoplankton di Laguna Gampong Pulot (LGP) Kabupaten Aceh Besar Syahrul Purnawan; Irma Dewiyanti; Teuku M. Marman
Journal Omni-Akuatika Vol 12, No 2 (2016): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (547.847 KB) | DOI: 10.20884/1.oa.2016.12.2.106

Abstract

The objective of the present study was to determine the diversity of phytoplankton and itsrelationship with physical-chemical water parameters of Gampong Pulot Lagoon, Leupungsubdistrict, Aceh Besar. The collecting of phytoplankton and water quality were conducted inDecember 2014. According to field assessment, there were six stations to represent the study site.We recorded 25 species of phytoplankton from class Bacillariophyceae, Dinophyceae andCyanophyceae. The abundance of Bacillariophyceae was 1202.02 ind / L classified as moderate,while Dinophyceae and Cyanophyceae were 621.13 ind / L and 208.49 ind / L, respectively,classified as low abundance. Bacillariophyceae was dominated by Rhizosolenia sp. with 26% ofcomposition. The diversity index has varied from 1,88 to 2,63 indicated as moderate value.  Basedon Principal Component Analysis (PCA) showed that the physical-chemical water parameters relatedto the abundance of phytoplankton in Gampong Pulot Lagoon.Keywords: phytoplankton, lagoon, diversity, leupung
Water Quality Study for Grouper Mariculture in Divur Bay Dullah Island, Tual City Daniel Djokosetiyanto; Henny Fitri Nawati; Machfud Machfud; Achmad Fahrudin
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (531.498 KB) | DOI: 10.20884/1.oa.2017.13.1.170

Abstract

Water quality is one of the factors that determine the feasibility and success of the development of grouper mariculture. The objective of this research was to analyze water quality which was prepared for grouper mariculture. This research was carried out in Divur Bay, Dullah island of Tual City. The water quality parameters observed were including temperature, brightness, salinity, pH, current velocity, depth, substrate type, DO, nitrate and phosphate in ten stations spread in Divur Bay. Water quality data were analyzed descriptively. The results showed that Divur Bay was feasible for the grouper culture development with a range of values of temperature, brightness, salinity, pH, current velocity, depth, DO, nitrate and phosphate obtained were 30-31oC; 2.28-7.86 m; 33-35 ppt; 7.7-8.1; 0.06-0.617m/s; 2..28-18.58 m; 3.7-4.8 ppm; 0.0015-0.219 ppm; 0.0076-0.0767 ppm.
Uji Toksisitas Letal dan Subletal Logam Berat Merkuri (Hg) Terhadap Ikan Nilem (Osteochilus hasselti) Norman Arie Prayogo; Atik Hidayati; Asrul Sahri Siregar; Yunasfi Yunasfi
Journal Omni-Akuatika Vol 12, No 1 (2016): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (706.265 KB) | DOI: 10.20884/1.oa.2016.12.1.68

Abstract

Mercury (Hg) is a heavy metal could pollute the river. Hg impacts on aquatic organism chronically. The influence of chemical toxic on aquatic organisms could be determined using toxicity (lethal and sublethal) tests. Osteochilus hasselti could be an object for toxicity test. A research, aiming to find LC50-96h concentration, was to find letal and subletal effects of Hg on erythrocyte and hematocryte changes. An experimental method applied Completely Randomized Design. The research was devided into 3 stages, i.e. preliminary, lethal toxicity (LC50-96h) and sublethal toxicity tests, in triplicates. Sampling of sublethal test was performed after an exposure time of 96 h (4 days) and 288 h (12 days). Lethal toxicity test data were analyzed as probit and data from sublethal toxicity test were F-tested. The result showed that LC50-96h of Hg on Osteochilus hasselti was 0.39 mg/L. The sublethal effect of Hg decreased erythrocyte ad hematocryte counts in parallel with increasing its concentration and its exposure time.Keywords: Hg, toxicity, LC50-96 hours, erythrocytes, hematocrits.
Chronosequence Effect of Post Tin Mining Ponds to Metals Residu and Microecosystem Change Andri Kurniawan
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (105.752 KB) | DOI: 10.20884/1.oa.2017.13.1.153

Abstract

The ecological change caused by tin mining activity is among the most important sorts of problem in the environment, including heavy metals contamination and change of microecosystem. This article aim to identify speciation of metals and heavy metals in post tin mining aquatic ecosystem, particularly, disused tin mining ponds in West Bangka, Indonesia in a chronosequence effect study. Speciation of metals and heavy metals are detected by X-Ray Fluorescence. X-Ray Fluorescence analysis show that heavy metals in post tin mining ponds like Fe, Sn, and Cu and also some metals such as Mg, Si, Al, S, and P were detected with a different numbers. There is a speciation of heavy metals and metals in post tin mining ponds with chronosequence effect. It can become an important and basic study about potential bioremediator in the research locations. Further, researches about microecosystem change and interaction of microorganisms and heavy metals there can become an information to design an ecological management tool to manage this ecosystem so it can be used for primay or secondary activity.
Challenges Encountered By Small Scale Fish Farmers In Assuring Fish Product Sustainability Tita Elfitasari; Albert Albert
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (94.738 KB) | DOI: 10.20884/1.oa.2017.13.2.256

Abstract

ABSTRACT  The aquaculture industry is developing tremendously over the past two decades following the significant decline of the world’s fish catch. Nevertheless, small scale fish farmers are still one of the most vulnerable communities in Indonesia. In their attempt to carry out successful aquaculture business, small scale fish farmers encounter several challenges that inhibit the fish farmers in ensuring the sustainability of fish products. This research aims to explore challenges and identify internal and external challenges that affect fish farmers’ activities in ensuring fish product sustainability. This research used a quantitative approach by collecting data through questionnaire distribution to small scale fish farmers in Central Java and data was analyzed using statistical analysis package. The findings of this research showed that challenges are classified into nine internal and seven external challenges. Result of statistical analysis indicated that internal challenges influenced product sustainability through water quality examination, whereas external challenges influenced product sustainability through two activities, i.e. giving feed at the right quantity and time, and maintain fish seed quality and availability.
Struktur Komunitas Karang Berdasarkan Karakteristik Perairan di Taman Wisata Perairan (TWP) Kepulauan Anambas Ade Tyas T Puspitasari; Amron Amron; Syawaludin Alisyahbana
Journal Omni-Akuatika Vol 12, No 1 (2016): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1207.481 KB) | DOI: 10.20884/1.oa.2016.12.1.30

Abstract

Taman Wisata Perairan Kepulauan Anambas merupakan salah satu Kawasan Konservasi Laut (KKL) di Indonesia yang ditujukan untuk mewujudkan pengelolaan sumberdaya kelautan yang berkelanjutan, khususnya terumbu karang. Tujuan dari penelitian ini adalah mengetahui struktur komunitas terumbu karang, kondisi kualitas air ekosistem terumbu karang dan hubungan kualitas air terhadap struktur komunitas terumbu karang pada Taman Wisata Perairan Kepulauan Anambas. Data struktur komunitas karang diperoleh dengan menggunakan metode Line Intercept Transect, dan dianalisis menggunakan indeks ekologi dan analisis regresi linier berganda. Hasil penelitian menunjukkan bahwa persentase tutupan karang, indeks mortalitas, indeks keragaman dan indeks keseragaman secara berurutan tergolong dalam kriteria sedang, tinggi, sedang dan tinggi. Kondisi kualitas perairan secara keseluruhan ada pada kisaran optimum bagi habitat terumbu karang. Salinitas perairan memiliki dampak yang signifikan terhadap indeks mortalitas, sedangkan oksigen terlarut (DO) dengan mortalitas karang dan oksigen terlarut (DO) mempengaruhi indeks keragaman dari terumbu karang.Kata kunci: terumbu karang, taman wisata perairan
Penilaian Pengkayaan Logam Timbal (Pb) dan Tingkat Kontaminasi Air Ballast di Perairan Tanjung Api-Api, Sumatera Selatan Fitri Agustriani; Anna Ida Sunaryo Purwiyanto; Yulianto Suteja
Journal Omni-Akuatika Vol 12, No 3 (2016): Omni-Akuatika Special Issue Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (304.987 KB) | DOI: 10.20884/1.oa.2016.12.3.133

Abstract

Tanjung Api-api sebagai pelabuhan sedikit banyak memiliki kontribusi dalam perubahan lingkunga peraiaran, termasuk perubahan konsentrasi logam timbal (Pb). Hal ini karena terjadinya peningkatan volume dan frekuensi pelayaran yang memberikan sumbangan logam Pb melalui buangan air ballast kapal. Penelitian ini bertujuan untuk mengetahui kontribusi pembuangan air ballast kapal terhadap penambahan logam berat Pb di perairan pelabuhan Tanjug Api-Api. Penelitian dilakukan dengan mengambil sampel air ballast pada beberapa kapal (feri, speedboat, pompong) dan sampel permukaan perairan pada saat surut untuk dianalisis kandungan Pb. Pengkayaan logam Pb pada perairan dianalisis menggunakan concentration factor (Cf), Degree of contamination/Cd, dan Pollution load index/PLI.Hasil analisis menunjukkan bahwa pada perairan Tanjung Api-Api terjadi penambahan logam berat Pb secara antropogenik, dimana salah satu sumber pencemarnya adalah buangan air ballast kapal. Hal ini ditunjukkan oleh konsentrasi logam Pb lebih tinggi dibanding perairan dan adanya korelasi positif antara logam Pb perairan dan air ballast. Konsetrasi logam Pb di perairan telah melampaui ambang batas baku mutu KepmenLH No. 51 tahun 2004, sedangkan konsentrasi logam Pb di air ballast untuk kapal feri masih berada di bawah baku mutu, namun untuk speedboat dan kapal pompong telah melampaui batas baku mutu KepmenLH No. 51 tahun 1995.Keywords : pengkayaan, logam Pb, air ballast, tingkat kontaminasi, tanjung api-api

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