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INDONESIA
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
 227   228   229   230   231 
The Use of SeashellsAsh (Anadara granosa) For Biosorbant of Zn in Water Ariani, Desi; Siregar, Yusni Ikhwan; Amin, Bintal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT This research was conducted in June 2019 at the Marine Chemistry Laboratory, Department of Marine Sciences, Riau University.The purpose of this study was to determine the ability of ash cockle (Anadara granosa) as biosorbers of zinc (Zn2+).The research was conducted by contacting zinc  and blood clam ash with the variation of concentrationof 14 × 103, 20 × 103 and 26 × 103 ppm with a maximum contact time of 24 hours.Zinc analysis performed by using atomic absorption spectroscopy (AAS). The results showed that the ash shells could be used as adsorption material and variations in concentration could affect the absorption of zinc metal. The optimum absorption occurs at a concentration of 14 × 103 ppm with a 24 hour contact time of 99.67%.Key word: Blood Calm Seashell, Adsorbent, Zinc, Atomic Absorption Spectroscopy
ANALYSIS OF OIL CONTENT IN SEDIMENTS AND RELATIONSHIP WITH MAKROZOOBENTHOS ABUNDANCE IN SUNGAI PAKNING WATERS OF BENGKALIS REGENCY RIAU PROVINCE Rosiana, Kenny; Amin, Bintal; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT           This research was conducted in January - February 2019. The purpose of this research was to analyze the oil consentration in sediments, species and abundance of macrozoobenthos, the relationship between the oil content in sediments and the abundance of macrozoobenthos. Four sampling stations with three replications in each station were surveyed. The results showed that the average oil consentration in sediments in the Stasions 1, 2 and 3 has exceeded the threshold level of the Department of Water Resources Quality Assurance / Quality Control Program which is> 1000 ppm which means that these stasions have been polluted by oil. Whilst at station 4 is still within safe limits.The types of macrozoobentos found in Sungai Pakning waters were Coenobita cavipes, Telescopium telescopium, Strigatella litterata, Cyclograpsus, Nassarius echinatus, Anadara granosa, Antoctodea, Littoraria scabra, Strigatella paupercula, Ancila, Cerithidea obtusa, and Nassarius olivaceus. The highest abundance was at Sei Selari port while the lowest abundance is around the tourist area of Pangkalan Jambi Mangrove Forest. Based on simple linear regression, the relationship between the oil content in sediment with the abundance of macrozoobentos y = 22.541-0.0191x with the coefficient of determination (R²) = 0.2437 and the value of the correlation coefficient (r) = 0.49. The value of r states a moderate relationship with a constant value b which is negative which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment. Keyword: Sungai Pakning, Oil, Sediment, Macrozoobenthos
The Effectiveness of EM4 Addition in the Biofilter Tanks to Reduce the BOD5and COD in the Palm Oil Industry Liquid Waste Saragih, Azizah Laily; Harahap, Sampe; Purwanto, Eko
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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Abstract Palm oil liquid waste is rich in BOD5and COD and thus need to be processed before being flown to environment. A study aims to reduce the BOD5and COD in that waste by using the biofilter that was added with EM4 has been conducted in April-May 2019. There were 3 treatments applied, namely the addition of 12 ml, 15 ml and 18 ml EM4 in the anaerob and aerob tanks, 3 replications. The waste was settled for 3 days in the anaerob and 3 days in the aerob tanks. The treated waste was then tested for BOD5 and COD concentrations. The treated waste was also used for rearing Oreocromis niloticus seedlings. Result shown that after being treated using the EM4 enriched biofilter the BOD5 reduced into 138.52- 165.76 mg/L and COD was 282.1- 335.3 mg/L. The survival of Oreocromis niloticusseedlings reared in the treated waste was 87-100 %. The best treatment to reduce the BOD5 was the addition of 12 ml EM4 and the effectiveness was 78%, while that of the COD was 84%. It can be concluded that the addition of EM4 to the biofilter tanks was able to reduce the BOD5 and COD in the palm oil industrial liquid waste.Keyword : Effective Microorganism-4, Oreocromis niloticus, Anaerob tanks, Aerob tanks
ECONOMIC VALUE OF RESERVOIR PLTA KOTO PANJANG KAMPAR RIAU PROVINSI USING PRODUCTIVITY APPROACH RESIDUAL RENT Sihombing, Fitriani; Zulkarnaini, Zulkarnaini; Warningsih, Trisla
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 research was conducted in February 2018 which is located in Koto Panjang hydroelectric reservoir of Kampar Regency of Riau province. This study aims to analyze the total cost of production on the business of fish Mas, Analyzing the revenue / gross income in the business of Mas fish, Analyzing the level of profit / net income in the business of Mas fish, Analyzing the economic value of the Mas fish farming, the method used in This research is a Simple Random Sampling method (randomly) with the number of respondents as much as 29 people cultivators. Data analysis used is production cost analysis, gross income analysis, net income analysis, Residual rent analysis. The results showed the annual production cost of IDR. 25.101.280.000, gross revenue IDR. 41.037.150.000, net income IDR. 15.935.870.000. The number of goldfish production per year is 1.609,3 tons. The economic value of KJA's fishery activities in Koto Panjang hydropower reservoir is IDR. 20.472.752.000 from the total KJA units of 1,546 units.                                                                                                                    Keywords:  Economic Value, Production, Revenue, floating net cages
EFFECT OF BIOFERTILIZER OF FORMULATION DOSE ON INCREASE IN NITRATE ON AQUACULTURE POUNDS ON PEAT SOIL Ginting, Dicky Efrata; Hasibuan, Saberina; Syafriadiman, Syafriadiman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT The research was conducted from August to October 2018 at the Peatland of Kualu Nenas Village, Tambang District, Kampar District, Riau Province. This study aims to determine the effect of formulation biofertilizer doses on increasing Nitrate in peat soil media. The expected benefit in this study is that it can provide fish farmers with scientific information about how best doses of formulated biofertilizer are to increase the productivity of peat soil pools. The method used in this study is the experimental method using a Completely Randomized Design (CRD) of 1 factor with 5 levels of treatment and 4 replications. The treatments used were the administration of formulation biofertilizer with a dose of P1 (700 g/ m2), P2 (750 g / m2), P3 (800 g / m2), P4 (850 g / m2), and P0 (without formulation biofertilizer). The results showed that the dosage formulation biofertilizer with a dose of 750 g / m2 affected the soil quality parameters (total N, total  P,  total  K)  and  water  quality  (pH,   DO,  Temperature,  Nitrate  and Orthopospat). Furthermore, the chemical parameters of water quality during the study were relatively good, temperatures ranged from 25-28 0C, pH ranged from4.4 to 6.8, DO ranged from 3.9 to 7.3, mg / l, Nitrate ranged from 1.58 to 3.23 mg/ l and orthoposphate values range from 2.114 to 8.915 mg / l. The soil quality parameters in the P2 (750 g / m2) N total treatment ranged from 0.25-0.36%, the total P ranged from 21.01 to 89.71%. The total K ranges from 50.92-176.57%. Keyword: Peat Soil, Formulation Biofertilizer, nitrate, 
PREVENTION MotilAeromonas Septicemia (MAS) of Pangasius hypophthalmus by SOLUTION Citrus hystrix Santa, Santa; Riauwaty, Morina; Syawal, Henni
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACTCitrus hystrix is natural ingredient that was potentially being antimicrobial, because having many flavonoid, tannin and alkaloid compounds. The aim of this study was to get the best doses of solution Citrus hystrixto prevent MAS seen by leukocyte changes of Pangasiushypopthalmusso that it can be applied to fish affected by MAS disease. The method used of this study was Complete Random Match (CRD) with 1 factor, 5 treatments and 3 replications. NamelyKn negative control (without soaking solution Citrus hystrixand not challengedbyAeromonas hydrophila), Kp positive control (soaking solution Citrus hystrixand challengedbyAeromonas hydrophila), P1 soaking solution Citrus hystrixby 1200 ppm and challengedbyAeromonas hydrophila, P2 soaking solution Citrus hystrixby 1500 ppm and challengedbyAeromonas hydrophila,P3soaking solution Citrus hystrixby1800  ppm and challengedbyAeromonas hydrophila. Prevention by soaking for 2 minutes and done 4 times with interval of 7 days.Pangasiushypopthalmusused with 6-12 cm of size and 150 fishes. The study showed that soaking solution Citrus hystrixwith 1500 ppm of dose increased Pangasiushypopthalmushealth, seen by 10,26x104cells/mm3of leukocyte averages, leukocyte differentiations (85,67 ofLymphocytes, 5,67% ofneutrophils, 5,67% ofmonocytes,37,00%of phagocyte activities, 100%of survival rate dan 11,33 g of absolute weight growth. Keyword : Leukocyte, Pangasius hypophthalmus, Citrus hystrix,Aeromonas  hydrophila, Soaking
ABUNDANCE OF EPIPHYTIC DIATOM IN RhizophoraCOVERED AND NOT COVERED BY PLASTIC IN PECINTA ALAM BAHARI DUMAI Lukman Harun; Sofyan Husein Siregar; Irvina Nurrachmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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 AbstractDiatoms are unicellular organisms from the Bacillariophiceae class, can be found as planktonic diatoms and benthic diatoms. This research was carried out in July 2018, in Pecinta Alam Bahari (PAB), Dumai Barat. This study aims to find out the type, distribution, and abundance of epiphytic diatoms in Rhizophora.The method use in this study was the survey method.Point sampling was determined by purposive sampling, each point sampling consists of 3 sub-sampling (trees). there are 9 types of epiphytic diatoms in mangrove Rhizophora sp. on roots covered and were not covered by plastic, it wasCoscinodiscus sp., Cyclotella sp., Isthmia sp., Melosira sp., Leptocylindrus sp., Stepanopixis sp., Gyrosigma sp., Navicula sp., and Synedra sp. The lowest total abundance of diatoms in the roots covered by plastic and those not covered by plastic is at the sampling point I, which is 689.28 ind/cm2and 1,132.40 ind/cm2. The highest diatom abundance in roots covered and not covered by plastic were at the sampling point III, which is 1,230.87 ind/cm2 and 1,477.04 ind/cm2. Based on the results of t-test obtained a significant value of< 0.05 i. e. 0,032 indicating the abundance of ephipythic diatoms was significantly different in the roots covered and not covered by plastic.Keywords : Diatom, Abundance, covered and not covered by plastic
THE EFFECT OF ADDITION PROBIOTIC IN FEED TO GROWTHAND SURVIVAL RATE OF CATFISH (Ompokhypopthalmus) USING BIOFLOCS SYSTEM ON PEAT SWAMP WATER Meiza, Maharanny; Putra, Iskandar; Rusliadi, Rusliadi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT   This research aim to determine the optimal dose of additional probiotic EM4 in feed to the growth performance and survival rate of Catfish (Ompok hypopthalmus) by using biofloc system on peat swamp water. This research was conducted on  40 days from June,13to August 2, 2019 at Technical Service Unit (UPT) of Hatchery, Faculty of Fisheries and Marine, University of Riau. This research was using experimental method by completely random design (RAL) one factor with three replications. The treatments were: P1 (without EM4), P2 (EM4 10mL / kg of feed), P3 (EM4 15 mL / kg of feed), P4 (EM4 20mL / kg of feed).  The material used probiotic EM4, molasses and peat water with a pH of 4. The results showed that a different doses of additional probiotic EM4 affecting the growth performance and the survival rate of catfish (Ompok hypophthalmus) usingbiofloc system on peat swamp water. In addition, it also affected the absolute weight growth, absolute length growth, feed efficiency and feed conversion ratio. The optimal dose was at 10 mL/kg of feed as it showed significantly different results compared to control and was not differ significantly at higher doses. So that while being applied in terms of economy, 10 mL/kg was the most efficient dose, by giving the an absolute growth of  8\.64 g, growth of an average length of 12.93 cm, the specific growth rate of 8.57%, the survival rate was 100%, feed efficiency was 120.4% and feed conversion ratio 0.8. Keywords: Probiotic, Catfish, biofloc, peat swamp water
THE PHYSICOCHEMICAL AND SENSORY QUALITY OF BAUNG (Hemibagrusnemurus) IS FED A MIXED DIET OF SALTED TRASH FISH AND FISH INNARDS AS A SUBSTITUTE FOR CONVENTIONAL FISH MEAL Hutagaol, Debby Alvionita; Hasan, Bustari; Iriani, Dian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACTThis study was purpose to evaluate physicochemical and sensory  characteristics of baung catfish fed diet containing the mixture of salted trash fish and catfish viscera replacement in fish diet. Baung catfish avaranging ±50 gram in weight were diet containing the mixture of salted trash fish and catfish viscera replacing for covensional fishmeal 0% (TIK), 50% (CIRJ 50), 75% (CIRJ 75), 100% (CIRJ 100) and commercial. The fish were fed in floating net up to commercial size (±500g). The harvested fish were evaluated for physicochemical (edible portion, processing waste, proximate composition, non protein nitrogen and amino acid) and sensory  characteristics. The result indicated there were no significant difference in physicochemical characteristics and sensory quality. The fish fed the difference diets, those, it can be concluded that a mixture of salted trash fish and fish visceral can replace convensional fishmeal in the fish diet. Keywords:Baung, Physicalchemistry, Sensory, Trash Fish, Fish Innards
Distribution Pattern and Sex Ratio of Lokan Shellsfish (Batissa violacea) in the waters of the Padang Birik-birik Village, North Pariaman District, Pariaman City Adila, Melin; Tanjung, Afrizal; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT This research was conducted in January 2019 at the Padang Birik Village, North Pariaman.The purpose of this research was to determine the pattern of distribution, abundance, sex ratio and frequency of lokan shellfish (B. violacea) size. The methods of this research was the survey methods,where the research station consists of 3 stations that werestation 1 in the mangrove area of Padang Birik-birik Village, station 2 was located in the estuary area close to the beach of Padang Birik -birik Village, station 3 was located adjacent to the coastal residential area in the village of Padang Birik –birik.Analysis was carried out in the Marine Biology Laboratory, University of Riau. The results of this study are the distribution pattern in the mangrove ecosystem clustered and the distribution pattern in the residential area were evenly distributed. The highest abundance was found in the mangrove ecosystem and the lowest was in residential areas. Sex ratio are generally male and female are balanced (1: 1.02). The most commonly found class of shellfish size 38,5-49,5 mm.Keywords: Lokan shells (B. Violacea), distribution patterns, abundance, sex ratio, frequency of size

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