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Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
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Core Subject : Science,
Earth & Planetary Sciences
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Articles 2,919 Documents
 171   172   173   174   175 
CHARACTERISTICS PROPERTIES OF PHYSICAL AND MECHANICAL COMPOSITE WOOD POWDER – BAGASSE AS SHIP CONSTRUCTION MATERIAL Ramdhan, Fajri; Sari, T. Ersti Yulika; Nasution, Polaris
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 The need for wood as the main ingredient in shipbuilding is always increasing and the acquistion of quality wood for construction of shipbuilding is increasingly difficult to find on the market, because this is due to the depletion of wood in the forest. This study aims to determine the physical and mechanical propertiesof wood powder composites and bagasse, so that they can be used as ship construction materials. In making test specimens refer to ASTM and JIS standards. While the physical testing of weight and density refers to the ASTM D970 standard and JIS A5980 water absorption test. Mechanical bending testing refers to the ASTM D790-02 standard, the ASTM D638-08 tensile test and the ASTM D5942-96 impact test. The results showed that the largest water absorption was composite wood powder 60% and bagasse 40% by 13,47%, and the largest density was a composite of wood powder 80% which was 1078,29 kg/m3. The highest bending mechanical test is a composite of wood powder 20% which is equal to 29,689 Mpa which is strongly equivalent to class III wood, the largest tensile test is a composite of wood powder 40% by 25,2547 Mpa which is strongly equivalent to grade V wood, and the biggest impact test is composite 40% wood powder which is 0,0469 J/mm2. Based on the results of the study that composite wood powder and bagasse can be used as construction materials for outer shells and deck houses.Keywords : Wood powder, bagasse, ASTM, JIS, composite, bending, tensile, impact
RELATIONS OF PATTERN CURRENT AND SEDIMENT CHARACTERISTICS IN SASAK BEACH WEST PASAMAN REGENCY PROVINCE OF WEST SUMATERA Annisa Al-Qhoshashi; Rifardi Rifardi; Aras Mulyadi
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 Mei 2018, to analysis relations of pattern current and sediment characteristics in Sasak Beach. The sediment samples were taken from four stations and anylised at Oceanography Laboratory Fisheries and Marine Faculty University of Riau. The result of the research, station I shows the dominant fraction is sandy mud under the influence of current velocity 0,10 m/s at high tide and 0,5 m/s at low tide. In station II shows the dominant fraction is mud sandy under the influence of current velocity 0,7 m/s at high tide and 1 m/s at low tide. In station III shows the dominant fraction is sandy gravel under the influence of current velocity 0,3 m/s at high tide and 0,8 m/s at low tide. In station IV shows the dominant fraction is sandy gravel under the influence of current velocity 0,8 m/s at high tide and 1,2 m/s at low tide. Keywords: Current, Sediment, Sasak Beach
MICROSCOPIC ANALYSIS THE GROWTH OF Azolla microphylla IN BRACKISH WATER Daulay, Anita Diah Permata Sari; Effendi, Irwan; Feliatra, Feliatra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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                                  AbtrakAzolla microphyllais a water fern that floats and rich of protein, essential amino acids, vitamins and minerals. The ferncan be found in ponds, ditches,warm temperature fields and tropical regions throughout the world. Research on microscopic analysis the growth of Azolla microphylla in brackish water was carried out from April to June 2018. A. microphylla was grown in containers with a volume capacity of 20 liters. The container was filled with planting media, then filled with brackish water to a volume of 10-15 liters and this ecosystem is set to 0 ‰, 1 ‰, 2 ‰ and 3 ‰. The growth of A. microphylla was observed by measuring biomass growth, colony growth, and double time growth, microscopic observations of leaves, rhizomes and rootsA. microphylla. From the results of the study it was found that A. microphylla can grew in brackish water (salinity 1‰, 2‰ and 3‰), however growth tends to be slower than in fresh water (salinity 0 ‰), and also can be seen based on the cross section of leaves, roots and rhizomes that grew optimally at salinity 0 ‰, and experience changes in shape and color in the cross section and do not grew optimally at salinity 1‰, 2‰ and 3‰.Keywords: Azolla microphylla growth, microscopic analysis, brackish water
LEUKOCYTES DIFFERENTIATION OF Pangasius hypopthalmus FED WITH TURMERIC (Curcuma domestica V) Sari, Nur Maya; Riauwaty, Morina; Lukistyowati, Iesje
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThis research was conducted on September until November 2017 in Parasites and Fish Diseases Laboratory, Faculty of Fisheries and Marine Science, University of Riau, Pekanbaru. The aim of this research is to know the effect of  turmeric (Curcuma domestica V) supplementation on  total leukocytes andleukocytes differentiation of Pangasius hypophthalmus.This research used Pangasius hypopthalmus size 8-12 cm with stocking densities 50/cages. The method used was an experiment method with a Completely Randomized Design (CRD), one factor with four treatments, namely P0 (feed without turmeric), P1(feed with turmeric of 0,5 g/kg), P2(feed with turmeric of 0,7 g/kg), P3(feed with turmeric of 0,9 g/kg). The results shown the turmericduring 60 days of maintenance has effect (P<0,05) to thetotal leucocyte and lymphocyte. The best treatment of  P2 (dose 0,7 g/kg).With total leucocyte 10,21 x 104 sel/mm3, lymphocytes 83,66%, neutrophils 6,66%, monocyte 9,66%,, survival rate 92%, and ), absolute weight equal 40,86 g. It can be concluded that the use of turmeric can increase the immune system of the Pangasius hypopthalmus.Keywords:Pangasius hypopthalmus,Curcuma domestica V, Leucocytes,lymphocyte
ISOLATION OF DIESEL OIL DEGRADATION BACTERIA IN THE WATERS AROUND THE PORT OF TELUK BAYUR PADANG CITY Sri Melinda Citra; Dessy Yoswaty; Nursyirwani Nursyirwani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACT Diesel oil degradation bacteria can be found in various habitats in the marine environment including in the waters around the harbor. This research aims at diesel oil in the waters around the port of Teluk Bayur and test its ability to degrade diesel oil. Isolation of the degrading bacteria has been from April to conductedJune 2018 in the Marine Microbiology Laboratory, Department of Marine Science, Faculty of Fishery and Marine University of Riau.Total count of diesel oil decomposing bacteria ranges from 0.4 x 106 to 7.3 x 106 CFU/ml. Eleven isolates of the diesel oil degradation bacteria were selected, ie BM1a, BM1b, BM1c, BM1d, BM7a, BM7b, BM7c, BM7d, BM14a, BM14c and BM14d. Based on morphological, physiology and biochemical characteristics, seven isolates were irregular, two round and concentric isolates, seven isolates with corrugated colony edges, two irregular and notched isolates, six yellow colony isolates, five white isolates, colony elevation all isolates emerge, all isolates were positive on catalase test, in H2S test all negative isolates, all isolates in the sugar test produced gas, all isolates were motile and Gram negative, all indole isolates were negative, seven methyl red positive isolates and four methy red isolates negative. In the degradation test only six bacterial isolates were selected, ie BM1a, BM1c, BM7a, BM7d, BM14c and BM14d. The highest degradation of diesel oil at concentrations 1%, 2% and 3% were performed by isolates BM1c, BM7a and BM1a respectively. Overall, all isolates were able to degrade diesel oil in the waters around Teluk Bayur Port, Padang City. Keyword: Isolation, Bacteria, Degradation, Diesel Oil 
Catch And Composition Of Tuna Longline Landed On Bungus Fishing Port Gustiana Putri; Arthur Brown; Bustari Bustari
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 on juni 2018 in  Bungus samudera fishing port. The purpose of this research was to know the composition of main catch and by-catch tuna longline and hook rate of tuna longline based at Bungus samudera fishing port. The method used in this research is survey method. The data analysis  using composition analysis and hook rate. The using data are catched of longline data on 2015-2016 in  Bungus samudera  fishing port.  From this research obtained of main catch as much 4 spesies consists of Big eye tuna, Madidihang, Albakor and Blue fin tuna and by-catch as much 16 spesies obtained of Setuhuk loreng, setuhuk hitam, pedang, mackerel, angelfish, lisong, skipjack tuna, lemadang, mackerel tuna, marlin fish, meka fish, todak fish, stingray, and shark. Hook rate obtained of main catch in this research are Albakor 0,05, Bigeye tuna 0,12, Madidihang 0,27 and Blue fin tuna 0,01. This hook rate was so little or decline who indication happening of exploitation in Samudera Hindia. Keyword: longline, hook rate, composition of catc
Marketing Margin of White Bawal Fish (Pampus Argenteus) on CV. Alam Mulia Bahari, Panipahan Village, Pasir Limau Kapas District, Rokan Hilir Regency, Riau Province Rosdiana Tarigan; Eni Yulinda; Hazmi Arief
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThis research was conducted in March 2018, located in PanipahanVillage, Pasir Limau Kapas District, Rokan Hilir Regency, Riau Province, to find out the marketing channels of white pomfret (Pampus Argenteus) at CV. Alam Mulia Bahari, Panipahan Village. Analyze the costs, profits and margins of pomfret marketing white (Pampus Argenteus) in CV. Alam Mulia Bahari, Panipahan Village. The method used in this research is survey method, namely by observing directly. The number of fishermen as many as fishermen, the owner of CV. Alam Mulia Bahari 3 people, employees of CV. Alam Mulia Bahari 10 people and the method of taking respondents is by census. Whereas the sampling of traders is by sampling, consisting of 5 egents, 10 retailers, 5 along-along merchants.The result showed that there were two marketing channels at CV. Alam Mulai Bahari, Panipahan Village, Pasir Limau Kapas Village, Rokan Hilir Regency, Riau Province. In the marketing channels I, the total marketing costs was IDR. 2,300/kg, total marketing profit of IDR.2,700/kg and marketing margin of IDR.5,000 per kg. For marketing channels II the total marketing cost is IDR. 3,000 per kg, the total marketing profit IDR. 4,000 per kg, and the Subdistrict, Rokan Hilir Regency, Riau Province. Then the marketing channel I is the most efficient marketing channel for White Bawal Fish with a low marketing margin of IDR. 5,000 and has high marketing value 0f 87.5% Kata Kunci: Margin, Costs, Benefits, Marketing Channels 
THE EFFECT OF ADDITION OF PAPAIN ENZYME ON THE QUALITY AND CHARACTERISTICS OF FRESH-WATER SCALLOP (Pilsbryconcha exilis)SAUCE Jansen D P N Daeli; Tjipto Leksono; N. Ira Sari
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abtract The study aimed to determine the effect of the addition of the commercial papain enzymes and papaya leaves on the quality and characteristics freshwater scallop sauce. The research was carried out by using the experimental method, by conducting experiments on making of freshwater scallop sauce by adding commercial papain enzymes and papaya leaves. The experimental was designed as the non-factorial Completely Randomized Design (CRD). The treatment given was consisted of 3 levels namely P0 (control), P1 (addition of commercial papain enzyme), P2 (addition of papaya leaves), for 3 replications. The result showed that the addition of commercial papain enzymes and papaya leaves significantly affected to the taste, flavor, protein content and NPN values, but did not affect lactic acid bacteria. The freshwater scallop processed by addition of papaya leaves (P2) was producing the best quality of the scallop sauce, which was shown by the highest organoleptic value. The value of taste was 7.2 with characteristics tasty and quite salty as specific scallop sauce taste, but papaya slightly tasted. The value of aroma was 6.8, characterized by the specific aroma of fermented fresh scallop. Meanwhile, the highest content of protein was produced by the control treatment (P0) at 2.99 %, the highest content of non-protein nitrogen was produced by treatment of the addition of commercial papain enzyme (P1) at 0.74 %, and the highest number of lactic acid bacteria was shown in the product treated by the addition of papaya leaves (P2) at 6.7Keyword: characteristics, enzyme, papain,Pilsbryoconcha exilis,sauce
THE EFFECT OF DIFFERENT TYPE OF SOLVENT EXTRACTIONON AMINO ACID CONTENT OF SEA CUCUMBER (Holothuria atra) PROTEIN CONCENTRATE Heriansyah, Ivan; Karnila, Rahman; Sukmiwati, Mery
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 study was aimed to determine the effect of different types of solvent extraction on the characteristics of sea cucumber(Holothuria atra)protein concentrates which includes yield, proximate, and total amino acids, and to determine the optimal type of solvent extraction in manufacture of sea cucumber protein concentrates. This research was carried out in 2 stages, namely 1) making of sea cucumber meat flour, 2) making of protein concentrate of sea cucumber meat. The treatment was different type of solvent extraction(ethanol, acetone and methanol). The results of the analysis indicated that the different type of solvent extraction was affected to the characteristics of  sea cucumber protein concentrate, and ethanol solvent was the best solvent in manufacture of sea cucumber protein concentrate with 9.85% of water content (WW), 27.96% of ash content (DW), 0.50% of fat content (DW), 62.04%  of protein content (DW).  Keywords:protein concentrate, solvent extraction, sea cucumber
GROWTH AND SURVIVAL RATE OF FISH (Channa micropeltes) FED Tubifex sp WITH DIFFERENT AMOUNTS Candra, Andre Maryan; Putra, Iskandar; Rusliadi, Rusliadi
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 Desember 2017 to January 2018 in the Aquatic Aquaculture Technology Laboratory of Marine Fishery University of Riau. The aims of this determine was to growth and survival rate of Channa micropeltes fed Tubifex sp with different amounts. This research used a size aquarium 40 x 30 x 40 cm3 with a water height 10 cm for 12 units. The feed used in the form of Tubifex sp, given with dose of 5, 10, 15 and 20% from the body weight of the fish. The method used in this research was the experimental method of Completely Randomized Design (CRD) using one factor with 4 treatments  and 3 replications. The best treatment result is feeding with dose 20% body weight which can produce absolute weight growth rate (5,25 gram), absolute length growth (3,61 cm), growth of specific length (1,46%) and survival rate (86.67%). Water quality during the research was obtained pH 6.0-7.0, temperature 26-28 0C, DO 3,1-3,2 mg / L. These result of research growth and survival of Channa micropeltes fed Tubifex sp with different amounts gives a significant effect on the growth rate and survival Channa micropeltes. Keywords : Tubifex sp, Channa micropeltes, Growth and survival rate.

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