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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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Status Populasi Bulu Babi Tripneustes gratilla di Perairan Desa Liang, Pulau Ambon Prulley A Uneputty; Jesaja A Pattikawa; Frederick Rijoly
Journal Omni-Akuatika Vol 12, No 3 (2016): Omni-Akuatika Special Issue Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Research to study status of sea urchin Tripneustes gratilla was carried out at the coastal waters of Liang Village, Ambon Island on September 2012. Belt transect method with the plot witdh 10m was used in this study.It was found that density of T. gratilla in in the area was 0.0122 ind./m with the highest density occurred at transect 1 i.e. 0.016 ind./m 2 . Estimated potential of T. gratilla was 4760 individuals. Based on the size of 145 individuals sampled, mean diameter of T. gratilla in Cape Matiella was 68.35mm and it was ranging from 58.11 mm to 76.61mm. Those sizes of diameter could be grouped into 2 age groups (cohorts) with the mean size of first and second cohorts were 64.51mm and 72.28mm, respectively. In general, length (diameter) – weight analysis showed that growth pattern of sea urchin in the area was negative allometric in which diameter grown faster than weight with the exception of sea urchin in transects 3 and 4 which showed isometric growth i.e. increasing of diameter was proportional to weight.Keywords: Tripneustes gratilla, density, cohort, length-weight relationship 2 while the lowest occurred at transect 4 i.e. 0.009 ind./m 2

KEANEKARAGAMAN JENIS LAMUN SEBAGAI SUMBER PAKAN DUGONG DUGON PADA DESA BUSUNG BINTAN UTARA KEPULAUAN RIAU Juraij Juraij; Dietriech G Bengen; Mujizat Kawaroe
Journal Omni-Akuatika Vol 10, No 2 (2014): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Seagrass species diversity as a source of feed Dugong dugon was studied in Busung North Bintan, Riau Islands during November 2014. The purpose of this study is to determine the diversity of seagrass species found on the feeding ground area. Data collection on seagrass diversity was conducted with three transect lines follow the shoreline, the distance between the transect line is 25 meters. Each transect lines was observed with the aid seagrass quadrant transects (50 x 50 cm plot) starting from the point 0 m and repeated every 10 m distance. The results showed that the diversity of seagrass type found in the waters of Busung North Bintan consist of Cymodoceae serrulata, Halophila minor, Syringodium isoetifolium, H. spinosa and Halodule uninervis, five types are a food source for the Dugong dugon. Amongst them, H. uninervis has highest value in term of their abundance and coverage.Keywords : Type of seagrass, dugongs feed, Halodule uninervis, Dugong dugon

Status Pengelolaan Sumberdaya Ikan Demersal Sekitar Pantai di Kabupaten Indramayu, Jawa Barat Gatot Yulianto; Kadarwan Suwardi; Luky Adrianto; Machfud Machfud
Journal Omni-Akuatika Vol 12, No 3 (2016): Omni-Akuatika Special Issue Kripik SCiFiMaS
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The status of fish resources in management fisheries context is important to be known for settingresources policy in order to ensure continuity of fish stock and harvest. Estimating the level ofsustainable catches and economic rent by using surplus production approach and Gordon-Schaeferbioeconomic analysis then comparing the actual condition, it will point to level of resource exploitationand level of resource degradation. The management of demersal fish around the beach in IndramayuRegency which is characterized by open access resource indicate the status of the fish resource in astate of overfishing and degraded. Therefore, it is important for designing fisheries managementpolicy by regulating the amount of fishing effort.Keywords: demersal fish, bioeconomic analysis, overfishing, degradation

Morphometry Dynamical of Siombak Lake, Medan Indonesia Ahmad Muhtadi; Zulham Apandy Harahap; Rusdi Leidonald
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Siombak lake (28 ha area) was a salty lake located in Medan coastal, Indonesia. Water fluctuation influenced by the sea tide. Therefore, it needed to do morphometry dynamical study as the first impression of lake physical characteristic. The purpose of this study was to understand the dynamical of Siombak lake morphometry. The research was done in September 2016. Lake mapping was done by making 100 line zig zag and draw with ArcMap. Bathymetry showed that the bottom of the lake was sloping at the center part of west and southeast of the lake, and steeping at north, south and east. Siombak Lake has shoreline length 2,535.78 m, with SDI value 2.70. Maximum length 756 m, with maximum width 246.15 m. Lake maximum depth was 17.7 m at MSL, 18.98 m at highest tide and 16.71 m at lowest tide, with average depth 5.33 m at MSL, 6.30 m at highest tide and 4.30 m at lowest tide. Lake volume was 783,607.16 m3 at MSL, 829,395.52 m3 at highest tide and 355,544.14 m3 at lowest tide, with water debit around 32.50 – 50.17 m3s-1. Water retention time was ± 4.33 – 6.75 hours

Kajian Aspek Populasi Menggunakan Model Pertumbuhan Allometri Spesies Kerang Kapah di Pantai Binalatung Kota Tarakan Firman Firman; Gazali Salim
Journal Omni-Akuatika Vol 12, No 2 (2016): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

The research goal was to compare the shells types of Kapah (Meretrix meretrix; M. lyrata; Geloniacoaxans) that found in the Coast Binalatung area, Tarakan and to assess the growth of shellfishallometri. Sampling is done by making a transect along the coast Binalatung as much as 12 transects.Each transect arranged lengthwise along the beach with 25 meters of each transect. Sampling wascarried out in the absence of repetition with an area of 25 x 25 meters transect. Sampling was done byusing tools such as Kapah’ rakes. The result showed the M. meretrix constistes of 63 % of Kapah’spopulation while M. lyrata and G. coaxans represent 27 % and 10 % respectively. Growth comparisonbetween shell length and weight was considered as positive allometri while comparison between thickshells and weight of shellfish Kapah was allometri negative.Keywords: shellfish kapah, allometri growth, Binalatung, Tarakan

The Study of Flow Resulting from Wave on Lhonga Beach, Aceh Besar Muhammad Irham; Ichsan Setiawan
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Dynamic interaction between waves and topographic generate flow dynamics that affect Lhonga coast, Aceh Besar. To analyze the dynamics, the numerical model of currents induced by wave was developed with the explicit finite difference approach method. The model in this study was tested by verifying the result directly with the field data obtained previously. The model is applied in Lhoknga coast of Aceh Besar district with the aim to study how the dynamics of hydro-oceanography as one of the elements to support the preservation of the marine resources of the area. Based on the simulation, the results obtained that the wave occurred in Lhoknga beach relatively small with the dominant direction to the northwest and the maximum of wave height occurs during the high tide condition. The result also informed that the distribution of longshore currents is generally moving from west to east along the coast. The direction of dominant current occurs in the area of 10-15 meters from the shore with an average depth of 6 meters. Keywords: wave flow, flow dynamics, beach, hydro-oceanography

Macrozoobenthos Community Structure In The Estuary of Donan River, Cilacap, Central Java Province, Indonesia Taufik Fakih Hakiki; Isdradjad Setyobudiandi; Sulistiono Sulistiono
Journal Omni-Akuatika Vol 13, No 2 (2017): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Estuary of Donan Riverwhich is adjacent to Segara Anakan Lagoon in Cilacap, Central Java Province (Indonesia) has been used for a number of activities such asfishieries, agriculture, industry, harbor, and tourism activities. The aim of this study is to analyze the ecosystem condition based on mazcrozoobenthos community structure. This study was conducted from Augustus 2015 to January 2016. Samples were collected monthly at five stations from the river close area to the ocean close area. The study was conducted to identify kinds of generaand densityof themacrozoobenthos, and analyze substrates and water quality.Data analysis was performed onabundance, diversity, evenness and dominance indexes.Based on the study, macrozoobenthos at the estuary of Donan River consists of three classes i.e Gastropod (12 genera), Bivalvia(9 genera), and Polychaeta (6 genera). Based on the sampling location, Gastropod and Bivalvia are the largest composition found at five stations. Based on the sampling location, the macrozoobenthos density, diversity index, evennes index,and dominance index can be inferred that the estuary of Donan River is classified to be moderately ecological polluted.

HEAVY METALS (Ni, Cu, Zn AND Cd) CONTENT IN SERUM OF RAT FED GREEN MUSSELS Muhammad Yudhistira Azis; Suryo Gandasasmita; Agung Dhamar Syakti
Journal Omni-Akuatika Vol 11, No 2 (2015): Omni-Akuatika November
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Green mussel (Perna viridis) can playing role as bio-indicator or biomonitoring agent for heavy-metalcontaminations in the sea. In this research, the concentrations of four elements Ni, Cu, Zn and Cd in P. viridis and in the serum of rat which orally feed by P. viridis were determined by Atomic Absorption Spectrometry (AAS) following dry acid digestion. Parameter analysis was evaluated by determining confidence limit for the obtained results. The result showed that there was a sequence of heavy-metal content in green mussels sample and laboratory rats serum, such as Ni < Cd < Cu < Zn.Keywords: heavy metals, green mussels, laboratory rats serum, AAS

Fluctuating Asymmetry of Red Tilapia (Oreochromis niloticus) in Genteng Fish Hatchery Center, Banyuwangi Darmawan Setia Budi; Lailatul Lutfiyah; Rr. Juni Triastuti
Journal Omni-Akuatika Vol 13, No 1 (2017): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

Fluctuating asymmetry of bilateral meristic characteristic is one of the simple methods that can be used to determine the stability of an individual fish development. This study aims to provide quantitative information about the level of asymmetry red tilapia (Oreochromis niloticus) in Genteng Fish Hatchery Center through bilateral meristic characteristic observation. The number of fish used in this study is 100 fish which have a measurement of 5-7 cm. Bilateral meristic characteristic observed is the number of soft pectoral fins, the number of soft pelvic fins, and the number of scales on the lateral line. The results show that the highest value of the fluctuating asymmetry magnitude (FAm) and fluctuating asymmetry number (FAn) are obtained at the number of scales on the lateral line those are 3.71 and 0.86. Furthermore, on soft pectoral fins, the FAm value obtained is 1.29 and the FAn value is 0.58. Meanwhile, the lowest FAm and FAn values obtained from the soft ventral fins which are 0.93 and 0.50. The overall FAm value is 5.93 and the overall FAn value is 1.94.

The Compliance of Ship's Crew Toward International Convention Implementation for Controlling of Ballast Water and Sediment from Ships In Offshore Port of Taboneo A Sulaiman; Achmad Syamsu Hidayat; Mijani Rahman; Noor Arida Fauzana
Journal Omni-Akuatika Vol 14, No 1 (2018): Omni-Akuatika May
Publisher : Fisheries and Marine Science Faculty - Jenderal Soedirman University

This study aims to analyze the level of compliance of the ship’s crew toward The BWM Convention. (Ballast Water Management Convetion). This research is kind of qualitative using a research design that relates the independent variables and the dependent variable at the same time. The study was conducted in the Offshore Port of Taboneo with a total sample of 54 respondents. The research data is primary data from interview by using questioner and secondary data obtained from interview and literature study. The results showed that the Compliance of the crew on the ship that has been equipped with Ballast Water Treatment System (BWTS) is 66.67 % of respondents fall into the category approach to obedient and 33.33 % of respondents approach to non-obedient category. So also the compliance of crew on board ship that has not been equipped with BWTS there are as many as 60.61 % of respondents fall into the category approach to obedient and 39.39 % of respondents approach to non-obedient category.

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Kampus Perikanan dan Ilmu Kelautan Universitas Jenderal Soedirman Jl. Dr. Soeparno, Karang Wangkal, Purwokerto 53122

Location
Kab. banyumas,

Jawa tengah

INDONESIA