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Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
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Articles 2,919 Documents
 148   149   150   151   152 
The Effect of Liquid Smoke Addition Presto Milkfish (Chanos chanos) Towards Consumer Acceptance Putra, Erenno Akbari; Leksono, Tjipto; Desmelati, Desmelati
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract This research was aimed to determine method and liquid smoke concentracion on presto milkfish  towards consumer acceptance that covers appearance, aroma, flavor, and texture. To know chemical content which were: water content, total acid content, total phenol content, and pH. Research was done with experiment method, that was to make presto milkfish with different coconut shell smoke liquid. Design used in this research was non factorial completely randomized design. The treatmens were addition of smoke liquid on presto milkfish with different amounts, with 4 treatments which were 0 ml (A0), 5 ml (A5), 10 ml (A10), and 15 ml (A15) smoke liquid addition. Reptiotion treatment was three times and the unit on this research was 12 units. Research result addition of different liquid smoke (0 ml, 5 ml, 10 ml, 15 ml) did not have real effect towards color, aroma, flavor and texture value of presto milkfish. Addition of 5 ml liquid smoke in each 200 gr milkfish was the best treatment to produced highest quality of presto milkfish. Charaecteristic of milkfish containts 30.04% water content, 9.89 total phenol, and 2.90 pH value. Keywords: Presto, milkfish (Chanos chanos), consumer acceptance.   
THE EFFECT OF DIFFERENT AMOUNT OF SALT ADDED ON THE QUALITY OF TILAPIA FISH(Oreochromis niloticus)BEKASAM Nahot Tua Sitohang; N Ira Sari; Tjipto Leksono
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThis study aimed to observe the influence of the addition salt at the different concentrations on the quality of tilapia fish (Oreochromis niloticus) bekasam. The research method used was experimentalcomposed for non factorial complete randomized design (CRD). The treatment conducted was the addition salt at the different concentrations (5%, 10%, 15%, and 20%) in fish fermentation to produce bekasam. Parameters used in the study were sencory evaluation, pH, salt content, total plate number of bacteria, and total of lactic acid bacteria. The results showed that the highest quality of bekasam wasproduces by the addition of salt at concentration 15% of the fish weight. It was indicated by the highest organoleptic value, showed by the score of appearance (6.0) with interesting characteristics and brownish color, taste (6.1) with specific and typical tasteof fermented fish, odor (6.6) with the specific and typical taste of fermented fish odor, and distinctive features of texture (6.6) with chewy and solid textured. The chemical characteristics of the best bekasam were showing the calue of pH 4.64 and the content of salt 0.87. Meanwhile, the characteristics of microbiology were showing the total aerobic bacteria 2.2 x 104Cfu/ g and total lactic acid bacteria 3.5 x 105Cfu/ g.Keywords : Bekasam, Fermentation, Oreochromis niloticus, Salt
COMPOSITION OF GILLNET CAPTURE RESULTS IN NIPAH PANJANG 1 TANJUNG JABUNG TIMURDISTRICT JAMBI PROVINCE Yosua Rivaldo Lumbantoruan; Arthur Brown; Pareng Rengi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACTThis research was conducted in January 2018 at PPI Kelurahan Nipah Panjang 1 East Tanjung Jabung Regency. The purpose of this research is to know the comparison of catching gillnet fishing equipment in the morning and night time as well as the physics, chemical and biological parameters in Nipah Panjang waters. The method used is survey method.            Data processing with t-test and analyzed descriptively. The catch during the study was 1526 kg or 3977 tails. Type of fish caught is baung laut (Macrone nemurus V) 34.50%, senangin (Polynemus tetrdactylus)34.44%, sembilang (Paraplotosusu albilabris)15.79%, lidah (Cynoglossus lingua ) 4.78%, shark (Charcharias falciformes ) 3.60%, biang (Setipinna melanochir) 1.64% and gulamah (Pseudocienna amovensis) 5.24%. The result of measurement of environmental parameters during the research is the current velocity ranged from 0.1 to 0.3 m / s, the temperature in the morning ranges from 28-30 0C, while the night ranges from 29-31 0C, the water brightness ranges between 55-60 cm, salinity range between 25 - 28 ‰, into the tidal range of 2.5-3 m while the tide ranges from 1 to 1.5 m. The result of t-test concludes the morning and night catch both by the number of fish and the weight of the caught fish is significantly different. Keyword:  Nipah Panjang 1, gillnet, catch, environmental parameters
THE EFFECT OF DIFFERENT ORGANIC EXTRACTION SOLVENTS ON THE PROFILE OF FATTY ACID IN MUDSKIPPER (Periophthalmodon schlosseri)MEAT Selpiana Sihombing; Edison Edison; Mery Sukmiwati
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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 ABSTRAK    This study aimed to determine the type and the amount of fatty acids in mudskipper (Periophthalmodon schlosseri)meat by using different organic solvents, as the best organic solvent to extract fatty acids. The study was using the experimental method. The parameters assessed were the yield, proximate composition, fish meat extraction and identification of fatty acid content. The results showed that the yield of fish oil in the fish was 30.0%, the water content (proximate) in fresh meat was 76.52%, ash 0.38%, protein 17.50%, and fat content 0.51%, all calculated in wet bases. The amount of fish oil extracted by using different organic solvents were 4.50 gs, 4.30  and 2.50 gs, by using ethanol, methanol, and isopropanol, respectively. Meanwhile, the amount of fatty acid yielded were 23.50%, 22.63% and 25.76% by using ethanol, methanol, and isopropanol, respectively. Keywords: mudskipper, fish oil, extraction, fatty acid
CHARACTERISTICS FISH OIL FROM BELLY FAT PATIN (Pangasius hypophthalmus) IS REFINNED USING BENTONITE Lorde Sembiring; Mirna Ilza; Andarini Diharmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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 Abstract Catfish processing (Pangasius hypophthalmus) produces byproducts of belly fat containing unsaturated fatty acids, polyunsaturated fatty acids (PUFAs) consisting of linoleic, linolenic, EPA, and DHA are the essential fatty acids the body needs to maintain health. Utilizing belly fat catfish can be processed into crude fish oil. Raw fish oil is purified to increase its economic value. Purification of fish oil usually uses absorbent one of them bentonite. Bentonite is used in the process of purifying oil as a pallor due to its high montmoriloni content. These research was conducted to study the effect of bentonite use (1, 4, 7%) on the characteristics of refined catfish oil. The design used completely non factorial randomized design. Bentonite addition treatment factor used A1 (1%), A2 (4%), A3 (7%) and repeated as many as 3 repetitions.  The results showed that bentonite had significant effect on fat content, peroxide number, anisidin and total oxidation number. The use of 7% bentonite decreased content  of fat, peroxide number, anisidine, peroxidants and total oxidation respecively from 1.72 to 0.85%, 5.18 to 0 meq / kg, 27.51 to 2.28 meq / kg, and 37.88 to 2.28 meq / kg.Key word:bentonite, Catfish, belly fat, fish oil, refinned
The Productivity of Purse SeineinFishery Port of PekalonganProvince of Central Java Rajagukguk, Koko Alexando; Yani, Alit Hindri; Isnaniah, Isnaniah
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACT               This research was conducted in January 2018 at Fishery Port of Pekalongan, Department of Fishery Resource Utilization, Faculty of Fisheries and Marine, University of Riau. The purpose of this study is to calculate the productivity of purse seine and fishing vessels. Productivity in the fishing unit has increased and decreased in each year. The productivity of the highest catching unit in purse seine was 119,617,069 kg/unit/year, while the lowest was 9,809,098 kg /unit/year. For purse seine capture productivity, the highest catching unit productivity is 47,212,20 kg unit/year. The total productivity of the highest purse seine fishermen is 3,604,044 kg/person/year, while the lowest productivity is 2,002,862 kg/person/year. Factors that influence the productivity of mini purse seine catch is the size of the ship (X2). As for several factors that affect the productivity of the catch is not represented the fuel. Keywords: productivity, purse seine,FisheryPort of Pekalongan 
Types and Abundance of Peripyhton in the Stone Substrate placed in the Tapung River, Tapung District, Kampar Regency, Riau Province Nengsi, Agustina Surya; Dahril, Tengku; Siagian, Madju
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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 AbstractPeriphyton is a group of aquatic microorganism that grew in the surface of natural substrates such stone, wood, plants and aquatic animals. A research aims to understand the periphyton type and abundance in the Tapung River was conducted in April to May 2017. Sampling were conducted in 3 stations, they were in the upstream (St 1), midstream (St 2), downstream (St 3), 4 times, once/ week. Stone circular were removed (9 from St1, 7 from St2 and 5 from St3). The rest of the stone were taken in 14th, 21st and 28th day. Periphyton samples were scrapped from the stone’s surface, fixed with Lugol 1% and then were identified.  Results shown that there were 32 periphyton species present and they were  belonged to 3 classes, namely Bacillariophyceae (23 species), Chlorophyceae (5 species) and Cyanophyceae (4 species). The abundance of phytoperiphyton in the upstream, midstream and downstream of the Tapung River was significantly different, there were 7.689 cell/cm2 (upstream), 18671 cell/cm2 (midstream), and 34.446 cell/cm2 (downstream) respectively. Periphyton abundance in the Tapung River in general was around 7.689 – 34.446 cells /cm2. Based on data obtained, it can be concluded that water in the Tapung River is categorized as oligotrophic. Keywords: Peripyhton, Stone, Trophic Status 
STUDY OF TECHNICAL AND FINANCIAL OF FISH CAPTURE BUSSINESS OF MACKEREL GILLNET IN BENGKONG VILLAGE SEAWATERS, BENGKONG SUB DISTRICT, BATAM CITY, RIAU ISLANDS PROVINCE Panggabean, Sari Artati; Bustari, Bustari; Nofrizal, Nofrizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT The research was conducted in December 2017 in Bengkong village seawaters, Bengkong sub district, Batam city, Riau Island Province. The method used in this research is survey method. Where this study Aims of this study to determine the feasibility in the technical aspects and the financial aspects in the mackerel gillnet. Data collection directly by involved is the fishing operation beside conducled interviews with the questionnaire aid in order to get the data and information due the financial analysis. The operation of mackerel gillnet activity done in the evening. The mackerel gillnet has a 2,5 inches of mesh size with nylon multifilament yarn material. The result of this study indicate financial analysis conducted on fishing business in Bengkong Village Seawaters  declared fishing effort is feasible to be implemented. The average net income earned by fishermen is Rp 30.322.500/ year. Based on the financial qnalysis this fishing boing Payback period for 2,5 years with ROI percentage is 39,81 %, while Benefit cost ratio is 1,15. The FRR value is 39 % greater than the interest rate of 4-10 %, it can concluded that this fish capture business technically and financially feasible. Keyword: fishing technical, financial feasible, mackerel gillnet 
DEGRADATION ABILITY AND IDENTIFICATION OF OIL DEGRADATION BACTERIA BY 16S rRNA SEQUENCING Shaumi, Nurul; Nursyirwani, Nursyirwani; Feliatra, Feliatra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACTPollution in the marine environment caused by industrial activity, marine transportation, offshore mining and oil refineries, one of which comes from petroleum contamination. One of  efforts to prevent and to manage oil pollutionwas by the use of oil degrading bacteria. The objective of this research was to examine degradation ability of marine bacteria isolates and identify the bacterial isolate based on 16S rRNA sequence. The research was conducted from March to May 2018. The oil degradation analysis was conducted at Laboratory of Marine Microbiology,Faculty of Fishery and Marine Science, while the molecularidentification of bacteria was done in Genetics Laboratory, Faculty of Mathematics and Natural Sciences, University of Riau. The results showed that five isolates of oil degradation bacteria, selected(BM 1d, BM 7b, BM 7c, BM 14a and BM 14b) were able to degrade crude oil at different concentrations. The highest degradation at 1% concentration is indicated by BM 14b isolate, at 2% concentration was indicatedby BM 1d isolate and at 3% concentration was indicated BM 14b isolate. From the degradation analysis results, three isolates (BM 1d, BM 14a, BM 14b) have the highest degradation ability to determine the type of oil degrading bacteria. The molecular identification results by the 16S rRNA sequencing and BLAST analysis showed that BM 1d isolate were similar to Bacillus sp. (95%), BM 14a isolate were similar to Bacillus flexus (92%) and BM 14b isolate were similar to Bacillus cereus (98%). Keyword : Oil Degradation Bacteria , Crude Oil, 16S rRNA, Bacillus
Reproductive Biology of Osteochilus hasselti C.V from the Tarai River, Tarai Bangun Village, Tambang District, Kampar Regency, Riau Province Ica Hayati; Deni Efizon; Ridwan Manda Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACTOsteochilus hasselti is found in the Tarai River that has been contaminated with organic pollution and it may affects the reproductive biology of the fish. A study aims to understand the reproductive biology of O. hasselti has been conducted. The fish was sampled 3 times, once/month, from November 2017 to January 2018.  Parameters measured were sex ratio, gonad maturity level, Gonad Somatic Index (GSI), fecundity and egg diameter. Results shown that there was 29 males and 49 females (sex ratio 1:2). Male has slimmer body, brighter color than those of the female. Genital papilla of the male was white, while that of the female was red. Size at maturity level in male ranged from 95 to 170 mm SL, while that of the females was 90 to 190 mm SL. The average GSI of male ranged from 1.61 to 8.51% while that of the females was 1.02 to 11.14%. The average fecundity was 65,451 eggs/female and egg diameter was 0.10 to 1.00 mm. Based on the size of egg diameter can be concluded this fish is total spawner. Keywords: Sex ratio, gonad maturity level, gonad somatic index, fecundity, total spawner

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