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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
 149   150   151   152   153 
EFFECT OF ADDITIONAL CARRAGENAN ON THE QUALITY OF GRILLED CATFISH (Pangasius hypopthalmus) CAKE Danny Handoko; N. Ira Sari; Suparmi Suparmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTThis study aimed to determine the effect of the addition of carrageenan on the quality of grilled catfish cake by looking at the value of organoleptic, folding test, and proximate value. The method used is the experimental method with a Completely Randomized Design (CRD) consisting of 4 levels of treatment ie 0% carrageenan (K0), 2.5% carrageenan (K1), 5% carrageenan (K2) and 7.5 % carrageenan (K3). The tested parameters were organoleptic (appearance, taste, texture and flavor), folding test and the proximate analysis (moisture, protein, fa, asht content and crude fiber). The results showed that the addition of carrageenan 5% is the best treatment for organoleptic test, folding test and chemical test, with appearance 6.68 (grilled catfish cake is homogen and tight), taste 5.53 (typical taste of grilled catfish cake neither taste of carrageenan), texture 7,03 (grilled catfish cake is chewy), flavor 5,32  (flavor of grilled catfish cake more dominant than carrageenan), folding test4.66 (not crack if folded), with moisture content 43.14%, protein content 9.62%, fat content 1.01%, ash content 1.01% and crude fiber1,33%. Keywords:Grilled catfish cake, carrageenan, organoleptic, proximate 
The utilization of Fermented Azolla flour (Azolla sp) meal using cow rumen Liquor In the diets on growth performance of this Catfish Fry (Pangasius hypophthalmus) Malik Malik; Indra Suharman; Adelina Adelina
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 research was conducted for 56 days from August to October 2017. The aim of this research was to know the optimum amount of fermented Azolla flour (Azolla sp) meal using cow rumen liquor in the diets on growth and feed performance of catfish fry. Completely randomized design (CRD) was used in this experiment, with one factor, five level treatments and three replications. The fish used in this research with size 3-5 cm in 2-4g of weight. Fish were reared in 1 m3 cages with stocking density 25 fish. Feeding trial were replacing soybean meal with fermented azolla meal applied to P1 (0%), P2 (10%), P3 (15%), P4 (20%), and P5 (25%) for 35% of protein content. The result showed that fermentedazolla leaf meal gave significant effect (P>0,05) on growth, feed efficiency and feed digestibility of catfish fingerling. Replacement 25% of azolla meal  fermented is the best response, produce the highest specific growth rate 3,27%, feed efficiency 40,77% and feed digestibility 73,12%. Key word : Azolla Meal, Cow Rumen Liquor, Fermentation, Growth, Pangasius hypophthalmus, Soybean Meal
CONSUMER ACCEPTANCE TO CATFISH (Pangasius hypophthalmus) KAMABOKO USING THE PURPLE SWEET POTATO FLOUR (Ipomoea batatas var. Ayamuraski)TO SUBSTITUTE THE USE OF TAPIOCA FLOUR Purnama Dewi Putri Wardani; Dewita Dewita; Suparmi Suparmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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 Abstract             This research aimed to determine the consumer acceptance to the catfish (Pangasius hypophthalmus) kamaboko using the purple sweet potato flour (Ipomoea batatas var. Ayamuraski)to substitute the use of tapioca flour.The research method used in this research was experimental method. The experiment  wasconducting by producing kamaboko catfishby adding the purple sweet potato flourto substitute the use of tapioca flour at varied amount to every 30 gstotal weight offlourused. It consisted of four varied composition, namely: 30 gs tapioca flour and 0 g purple sweet potato flour (TJ0), 20 gs tapioca flour and 10 gs purple sweet potato flour (TJ1), 10 gs tapioca flour and 20 gs purple sweet potato flour (TJ2), and 0 g tapioca flour and 30 gs purple sweet potato flour (TJ3). The results showed that the best catfish kamaboko was produced by the using of 10 gs tapioca flour and 20 gs purple sweet potato flour (TJ2). The best product of kamaboko was mostly preferred by consumer at 92,5% for its consistence, 91,25% for its aroma ; 87,50% for its taste and 96,25% for its texture. The score anava were 3,23; 3,19; 3,20 and 3,25 respectively. Based on proximate analysis, kamaboko which mostly preferred by consumerwas containing moisture 66,69%, ash 2,14%, protein 15,84%, fat 7,05% and fiber 2,69%. Keywords: Kamaboko, catfish, tapioca flour, purple sweet potato flour, consumer              acceptance
Pengaruh Dosis Probiotik Aquaenzyms Berbeda Pada Pakan Terhadap Pertumbuhan Dan Kelulushidupan Ikan Baung (Hemibagrus nemurus) Lelinur Indah Damai Yani Nazara Indah Damai Yani Nazara; Mulyadi Mulyadi; Usman MT Usman MT
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT             This research was conducted on3rd  November  to7thDecember   2017 in the Laboratory of Aquaculture Technology, Marine and Fisheries Faculty, University of Riau, Pekanbaru. The main purpose of this study was to determine the effect of different aquaenzyms probiotic doses on fish feed toward the growth performance and survival rate of Channel Cafish (Hemibagrus nemurus). The probiotic was used in this study was aquaennzyms probiotic which is composed of Bacillus sp. This research used a completely randomized design (CRD) with one factor, five treatments and three replications. Doses of probiotic were used in this research were P1 (4 g/kg of feed), P2 (4.5 g/kg of feed), P3 (5 g/kg of feed), P4 (5.5g/kg of feed) dan P5 (6 g/kg of feed). The results showed that P1, P2, P3, P4 and P5gavesignificant effect (P<0,05)toward the absolut weightgrowth, absolut length growth and spesific growth rate. While at the feed efficiency, feed conversion ratio and survival rate didn’t give a significant effect on any treatments (P>0.05). The best treatment was on the addition 6 g/kg of feed of probiotic dose by giving the 15.45 g of absolut weigth growth, the absolut length growth was 8.30 g, spesific growth rate was 5.89 g, feed efficiency was 82.98% g, feed conversion ratio was 1.21 and survival rate was 92.4 %. Keyword : Probiotics, Hemibagrus nemurus, Growth
THE ABUNDANCE OF PLANKTONIC DIATOMS WITH THE NITRATE AND PHOSPHATE AROUND KUALA ENOK OF INDRAGIRI HILIR REGENCY OF RIAU PROVINCE Hari Handika Sektiawan; Bintal Amin; Yusni Ikhwan Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACT Diatoms are the largest phytoplankton group and as the primary producer in marine waters.  This research was conducted in December 2017  around Kuala Enok of Indragiri Hilir Regency of Riau Province. The aim of this research was to determine the abundance of planktonic diatoms and their relationships with the nitrate and phosphate and to determine water quality as well as to see the relationship of planktonic diatoms abundance with water quality.  The survey method was applied in this research and sampling location determined by purposive sampling. Measurement of water quality was done by in situ and ex situ which consist of biologycal, physical and chemical parameters. Nitrate concentrations in waters ranged from 0,2207 to 0,2615 mg/l and phosphate concentrations ranged from 0,1595 to 0,2886 mg/l.  The planktonic diatoms on the water level in Kuala Enok consist of 11 genera and the abundance ranged from 6593,51 to 12336,24 individual/L, the mean value of diversity index ranged from 1,2074 to 1,6124. The dominance index ranged from 0,3767 to 0,5184 and the uniformity index value ranged from 0,6944 to 0,7955. Meanwhile, the correlation of diatom abundance with concentration of nitrate was 0,14 (very weak relationship) and correlation of diatomic abundance with phosphate concentration was 0,13 (very weak relationship). Based on the result of the abundance of planktonic diatoms with the nitrate and phosphate calculation on water level can be concluded that the waters in Kuala enok was in medium contaminated condition. Keyword: The abundance, nitrate and phosphate, planktonic diatom, Kuala Enok 
STUDY OF SEASON CATCHING FISHING (Rastrelliger spp) TO ‘SIBOLGA NORTH SUMATERA PROVINCE Juanda Wisno Sinurat; Ersti Yulika Sari; Usman Usman
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 aims to know the pattern of catching fishing seasons pattern in the Sibolga waters North Sumatera. An analysis was conducted using catching production and purse seine fishing trip from the years at 2012-2016.collected by Sibolga Fishing Port. The method used is survey method, the method to be used in this research is survey method. Survey method is conducted for primary data collection and secondary data. Primary data will be obtained through direct interviews with fishermen on fishing grounds, operation times, and fishing effortsThe result showed that The result showed that the change of catch in a certain month because of the availability of fish and the succeed of fishing operation which resulted in the CPUE to fluctuate a good time to do bloated fishing in January, July, August, and November with peak season in November. While the lowest season index is February.. Keywords: Fishing seasons,catching, the average percentage methods,and CPUE
PEMANFAATAN FERMENTASI TEPUNG MAGGOT (Hermetia illucens) SEBAGAI SUBSTITUSI TEPUNG IKAN DALAM PAKAN BUATAN UNTUK BENIH IKAN BAUNG (Hemibagrus nemurus) Desenieli Harefa; Adelina Adelina; Indra Suharman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT This research was conducted from December 10th, 2017 - February 10th, 2018 in Fish Nutrition Laboratory and Experimental Pond, University of Riau. The purpose of this research was to know the best percentage using fermented Maggot meal to substitute fish meal in diets on growth and feed efficiency of green catfish (Hemibagrus nemurus). This study used a Completely Randomized Design (CRD) with one faktor, five level treatments and three replications. Feeding trials was replacing fish meal with fermented maggot meal applied to P0 (0% fermented maggot meal), P1 (25% fermented maggot meal), P2 (50% fermented maggot meal), P3 (75% fermented maggot meal), and P4 (100% fermented maggot meal). The result showed that the best treatment contained in P3 (75% fermented maggot meal) with feed digestibility of 74,03%, feed efficiency of 73,38% and spesific growth rate of 4,12%. Keyword: Diets, Fermented Maggot meal, Green catfish (Hemibagrus nemurus), Growth, Substitution
EFFECT OF SUBSTRATE TO DENSITY AND MORPHOMETRIC SEAGRASS LEAF (Thalassia hemprichii) IN NIRWANA SEA WATERS OF PADANG WEST SUMATERA Nova Esterlita; Sofyan Husein Siregar; Zulkifli Zulkifli
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 has been held on March-April 2018 in Nirwana sea waters of Padang. The purpose of this study was to determine the density of species, morphometrics of Thallassia hemprichii leaves. The study was also aimed to analyze the influence of substrate type on density and morphometrics of seagrass leaves. The stations were determined by purposive sampling and use transect line method for taken sample. The results of this study showed the highest density was found in Station I that has the type of substrate is coral fraction with value about 302.56 stands / m2 and thelowest density was found in Station III that has sand substrate with value 45.78 stands / m2. The longest morphometric length of the longest seagrass leaves in Station I is about 18.36 cm and the shortest at Station III with the value 7.96 cm. The morphometric average width of  the widest seagrass leaves  is at Station I with the value 1.2 cm and the shortest in Station III with value 0.62 cm. The result of simple linear regression test for the influence of the substrate on seagrass density and morphometric leaf with R2 value (coefficient of determination) = 0.21; 0.33; 0.16 indicates that the type of substrate affects the density and morphometrics seagrass T. hemprichii leaves. Keywords: Substrate, Seagrass , Density, Morphometric
The effectiveness of anaerob-aerob bio filters and phytoremediation using Pistia Stratiotes for reducing COD and BOD5 content in laundry liquid waste Zulkhairi Zulkhairi; Sampe Harahap; Eko Purwanto
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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 Abstract The laundryliquid waste is rich in COD and BOD5 and thus need to be processed before being flown to environment. A study aims to reduce the COD and BOD5 in that waste has been conducted in January – March 2018. The waste (135 L) was treated using a batch system that was consisted of 2 aerob and 2 anaerob tanks and a Pistia Stratiotesphytoremediation pond. The liquid waste was kept for 10 days in anaerob tanks, 7 days in aerob tanks and 15 days in phytoremediation pond. By the end of the experiment, the COD reduced from 1.440 mg/l to 110 mg/l (the effectiveness was of 92.36%). While the BOD5 reduced from 510 mg/l – 55 mg/l (the effectiveness was 89.21%). Other water quality parameters such as pH was normal and DO was improved. The treated waste was used for rearing Oreochromis niloticus (3-4 cm TL) and was kept for 15 days. The survival rate of the fish was 100%. Based on data obtained, it can be concluded that the combination of bio filters and phytoremediation system using Pistia Stratiotesis effective to reduce the COD and BOD5 content in the laundry liquid waste.  Keyword : waste water, detergent contaminated waste, batch system, waste management  
LENGHT - WEIGHT RELATIONSHIP ANDDENSITY OF Littorina melanostomaANDNerita lineataIN MANGROVE ECOSYSTEMSOF BASILAM BARU VILLAGE DUMAI CITY, RIAU PROVINCE Gafnie, Ghassani Razan; Amin, Bintal; Thamrin, Thamrin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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AbstractLittorina melanostoma andNerita lineata is a type of snail that use mangrove ecosystems as one of the habitats. Dumai is one of the industrial cities in the province of Riau, where various kinds of human activity can disrupt the ecosystem of mangroves and its associated  biota.This research was conducted in January 2018 in mangrove ecosystem of Basilam Baru Dumai City aiming to find out the lenght weight relationship, snail densities, types of mangroves and between mangroverelationship with snails density. That sampling was done by using the transek method on two stations.The results showed the  length weight relationship is a negative allometric with the higher density at station I. Six (6) species were found in the mangrove.Relationship between mangrove density with density ofL. melanostomawas found to be weak while the relationship of the density of mangrove with density N. lineata wasstrong relationship.Keywords: Littorina melanostoma,Nerita lineata, Length Weight Relationship, Mangrove

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