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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
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Karakteristik Genotip Bakteri Pseudomonas sp yang Diisolasi dari Perairan Laut Dumai Apriliani Indrawati Putri; Felix Feliatra; Nursyirwani Nursyirwani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRAK Pseudomonas merupakan salah satu bakteri patogen opurtunistik yang menyerang makhluk hidup khususnya manusia dengan sistem kekebalan yang lemah.Tujuan penelitian ini adalah unutuk mengetahui ketahanan bakteri Pseudomonas terhadap antibiotik dan mengetahui kekerabatan antar spesies Pseudomonas sp yang diisolasi dari Perairan Laut Dumai menggunakan analisis 16S rRNA.Penelitian ini dimula dari bulan Januari 2019 – Februari 2019. Dari hasil penelitian Ciprofloxacin paling sensitif dalam menghambat pertumbuhan Pseudomonas dengan zona hambat terbesar 24,00 mm sedangkan yang resisten Sterptomycin dengan zona hambat 8,5 mm dan Erythromycin dengan zona hambat 4,7 mm. Setelah dilakukan analasis sekuensing DNA terhadap ketujuh isolat tersebut, diketahui isolat memiliki kekerabatan dengan bakteri Pseudomonas dengan strain yang berbeda. Tingkat homolog isolat terssebut berkisar 86,01% – 93,01 %.  Isolat P7 FPK Dumai, P21 FPK Dumai, dan isolat P22 FPK Dumai identik dengan Pseudomonas geniculate (89,69%, 93,01% dan 93,00%) sedangkan isolat P9 FPK Dumai identik dengan P. aeruginosa (92,40%). Isolat P1 FPK Dumai identik dengan P. stutzeri (86,16%). Isolat P13 FPK Dumai identik dengan P. monteilii (86,01%) sedangkan P20 FPK Dumai identik dengan P. fluorescens (89,70%) hal ini berarti isolat P7 FPK Dumai, P9 FPK Dumai, P13 FPK Dumai, P20 FPK Dumai dan isolat P1 FPK Dumai merupakan strain baru yang urutan basa dan nitrogennya belum masuk kedalam database sekuen genbank. Sedangkan isolat P21 FPK Dumai dan isolat P22 FPK Dumai mewakili identitas pada tingkat genus.    Kata Kunci : bakteri Pseudomonas, antibiotik, 16S rRNA
MARKETING COMMUNICATIONS OF CATFISHES (Clarias sp) CULTIVATOR IN HANG TUAH VILLAGE PERHENTIAN RAJA SUBDISTRICT, KAMPAR REGENCY RIAU PROVINCE Nining Sumiarti; Zulkarnain Zulkarnain; Darwis AN Darwis AN
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT               Marketing communication has a very important role for businesses to introduce certain products. This study aims to determine the marketing communications of Catfishes (Clarias sp) cultivator and determine the constraints faced by Catfishes (Clarias sp) cultivator in the Hang Tuah Village. This study was conducted on April, until May 2019 in Hang Tuah Village Perhentian Raja Subdistrict, Kampar Regency Riau Province. The method used is the Grounded Theory method by conducting a qualitative approach, where the determination of informants by Snowball Sampling with 12 informants.The result showed that of marketing communications effective used of Catfishes (Clarias sp) cultivator is by using mix communication Public Relation introduce Hang Tuah Village communities to be attracted to visit Hang Tuah Village. Constraints that have been of Catfishes (Clarias sp) cultivator Hang Tuah Village, cultivation of the a place far, not the cooperatives to the business of Catfishes (Clarias sp) cultivator, cultivator of the still doing cultivation simply, reduced cultivation results at certain times and promotion is still low.Keywords: Communication, Marketing, Cultivator Of The Catfishes
EFFECT OF FREQUENCY OF FEEDING ON GROWTH AND SURVIVAL RATE OF Hemibagrus nemurus IN MAINTENANCE WITH BIOFLOC SYSTEM Lestari Dwi Ayu Safitri; Iskandar Putra; Niken Ayu Pamukas
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 in February until March 2019 at  Aquaculture Technology Laboratory of Fisheries and Marine, University Riau. The purpose of this study was to determine the effect of feeding on the growth and survival rate of Hemibagrus nemurus on maintenance with biofloc system. The method used is an experimental method with a completely randomized complete design (CRD) with four levels of treatment, namely P1 (1 time a day feeding at 6 a.m.), P2 (2 times a day feeding (6 a.m. and 6 p.m ) P3 (3 feeding times at 6 a.m., 12 a.m. and 6 p.m.) and P4 (4 times a day feeding at 6 a.m., 10 p.m., 12 a.m. and 6 p.m.). The results showed that the frequency of different feedings had an effect on the growth and survival rate of  Hemibagrus nemurus on maintenance media with a biofloc system. The best treatment is P4 (4 times a day feeding at 6 a.am., 10 a.am., 12 a.m. and 6 p.m.), with absolute growth weight of 5.10 g, absolute length of 2.28 cm, specific growth rate of 2.25%, feed efficiency 92.76% and 100% survival rate. Water quality during the study was pH 6.67-6.84, temperature 27.55 - 28.18 °C, DO 5.18 - 5.83 mg / l and ammonia 0.002-0.007 mg / l.   Keywords: Frequency, Hemibagrus nemurus, growth, survival rate, bioflok
NITRAT CONTENT, PHOSPHATE, SILICATE AND ABUNDANCE OF PLANKTONIK DIATOM IN THE RUPAT OF BENGKALIS REGENCY OF RIAU PROVINCE Areza Maulana; Irvina Nurrachmi; Sofyan H. 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 This research was conducted in January 2018 in Rupat Water of Bengkalis Regency of Riau Province.The purpose of this research is to know the relationship between nitrate, phosphate and silicates with abundance of diatom in Rupat waters of North and South in Rupat waters. The research method is purposive sampling method with 2 area and divided into 8 point station.The results showed that the concentration of Nitrate, Phosphate and Silicate that is; 0,154 mg/L ; 2,342 mg/L; 0,023 mg/L. Diatom species were found 15 species that is; Asterionella sp, Bacillaria sp, Biddulphia sp, Cerataulina sp, Chaetoceros sp, Ditylum sp, Eucampia sp, Fragilariopsis sp, Guinardia sp, Microspora sp, Minidiscus chilensis, Navicula sp, Rhabdonema sp, Thalassionema sp, Thalassiosira sp. Abundance of diatoms in region 1 and region 2 of 452,159 Ind/L; 503.181 Ind/L.The result of regression test showed that the relationship of nitrate concentration with diatom abundance has a moderate correlation, so that in Rupat waters, the concentration of nitrate, phosphate and silicate belong to oligotrophic waters (less fertile).  Key Words : Nitrate, Phospate, Silicate, Abundance Diatoms
ANALYSIS OF DRIFT GILL NET FISHING BUSINESS IN SASAK VILLAGE SASAK RANAH PASISIE SUB-DISTRICT PASAMAN BARAT REGENCY WEST SUMATRA PROVINCE Arni Wira Destika; Hendrik Hendrik; Hamdi Hamid
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 study aims to analyze the amount of investment in drift gill net fishing business, analyze the income and profits of drift gill net fishing business, and analyze the feasibility of drift gill net fishing business. This research is conducted by using survey method and interview technique. The number of respondents in this study were 12. Based on the results of the research, the total investment for drift gill net fishing business with a fishing fleet measuring 5 GT IS IDR. 190.583.738 and gross income adalah IDR. 6.623.333 in one fishing trip, and the profit of drift gill net fishermen is IDR. 2.387.738 in one trip. Based on the calculation of the Revenue Cost of Ratio (RCR) investment criteria, a value of 1,59 means that RCR> 1 and the business of drift gill net fishing equipment are profitable and feasible to continue. While the Financial Rate of Return (FRR) of drift gill net fishing business is 90,6% and is greater than the current bank deposit interest rate, which is 6.5%, which means it is better to invest in the business at this time. The Payback Period of Capital (PPC) value is 70 which means that the investment in this business can be returned for 70 fishing trips                Keywords: Fisherman, fish gear, business feasibility analysis
SUSPENSION OF THE SUSPECT IN SAIL RIVER WATER PEKANBARU CITY Intan Ratna Purba; Budijono Budijono; Eko Purwanto
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 study aims to determine the value of suspended solids contained in in the waters of the Sail River. This research was conducted in March-April 2019. Load suspended solid samples were taken from three stations, namely at the upstream part (Station 1), the middle part (Station 2) and the downstream (Station 3). Sampling is done three times, and every 10 days sampling is done. The results obtained are the value of suspended solids content ranging from 68-332 mg/L. Thus the Sail River waters have been contaminated by suspended solids. Keywords: Suspended solids, Sail River
THE EFFECT OF COMBINATION OVATIDEWITHhCG ON OVULATION AND HATCHING OF FISH EGGOF PAWAS (Osteochilus hasselti C.V) Desy Kristina Ayu Sirait; Netti Aryani; Nuraini Nuraini
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT The aim of this research was to determine the effect of combination Ovatide with hCG on ovulation and hatching of fish egg of Pawas (Osteochilus hasselti C.V). This research was conducted from May-October 2018 at Fish Hatchery and Breeding Laboratory, Fisheries and Marine Science Faculty Riau University. The method used is an experimental method with a Completely RandomizedDesign (CRD)with five treatments and three replications.The treatment were P1 (Ovatide 0,5 ml/kg + 0 IU/kg body weight hCG), P2 (Ovatide 0,5 ml/kg + 450 IU/kg body weight hCG), P3 (Ovatide 0,5 ml/kg + 550 IU/kg body weight hCG), P4 (Ovatide 0,5 ml/kg + 650 IU/kg body weight hCG), P5 (Ovatide 0 ml/kg + 550 IU/kg body weight hCG). The result showed thatcombination Ovatide with hCG on P3 (Ovatide 0,5 ml/kg + 550 IU/kg body weight hCG)was the highest of P3 with latency period 5,06 hours, number off egg stripping 179 egg/g broodstock, ovisomatic index 16,43%, increase of diameter egg 0,104 mm, increase of egg maturation 14%, fertilization rate 91,26%, hatching rate 90,17%, and survival rate 90,38%. The water quality parameters during research was in optimal range temperature 25-28°C, pH 6and dissolved oxygen 3,77-5,20 mg/l. Keywords :Osteochilus hasselti C.V, Ovatide, hCG, Ovulation, and Hatching rate
OPERATIONAL MANAGEMENT OF FISH AUCTION PLACE(TPI) AROUND MANDAILING DISTRICT, NORTH SUMATERA PROVINCE Arismayani Siregar; Bustari Bustari; Pareng Rengi
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 was conducted in March 2019 at Fish Auction Place Natal Sekitar. The purpose of the research is to find out the operational management and the problems that exist in TPI Natal Sekitar, especially about the elements and the application of management functions in its management. The method used in this study is the survey method. Management data analysis was carried out descriptively. Based on the results of management research at TPI Natal Sekitar it has not been implemented well, because it has not been able to run the elements and functions of management as a whole in accordance with its provisions.Keywords: Operational Management , Fish Auction Place Natal Sekitar, Mandailing Natal District.
THE CORRELATION OF SIZE AND SEDIMENT ORGANIC MATTER WITH MAKROZOOBENTHOS ABUNDANCE IN MEDANG KAMPAI DUMAI CITY Novhitasari Simbolon; Afrizal Tanjung; Elizal Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACTThis research was conducted in March 2019 at MedangKampai Waters of Dumai City. This study aims to determine the relationship between particle size and sediment organic matter with abundance of macrozoobenthos in MedangKampai waters. The method used is survey. Determination of stations using purposive sampling method. Sampling was carried out in the field and then taken to the Marine Chemistry Laboratory for analysis of sediment and organic material fractions. The identification of macrozoobenthos was carried out at the Marine Biology Laboratory. The results of the study of sediment fractions showed different types of sediments, namely sandy mud, gravel sand, and mud. Particle size and density of silt sediments (4.90 - 7.30 Ø). The content of organic ingredients is 3.37% - 19.40%. And the abundance of macrozoobenthos ranges from 1.11 ind / m2 - 3.56 ind / m2 with 16 numbers of species found from the dominating class of gastropods. The relationship of sediment particle size (Mz) to the abundance of macrozoobenthos has a value (r) = 0.0721 a very weak relationship (H0.1 is accepted). The relationship between the total organic matter content of sediments and the abundance of macrozoobenthos has a value (r) = 0.1044 which means it has a very weak relationship (H1.1 is accepted). Keywords: Particle Size, Organic Material, Macrozoobenthos,  
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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