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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
 115   116   117   118   119 
SURFACE SEDIMENT OF COASTAL WATERS OF PANDAN TAPANULI DISTRICT OF NORTH SUMATERA PROVINCE Julyana Julyana; Rifardi Rifardi; Musrifin Galib
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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Abstract

Abstract This research was conducted from May - June 2017 in Beach Pandan district Tapanuli central north Sumatera Province. The purpose of this research is to know the type of material constituents horizontally in Pandan coastal waters. Sediment samples were taken using a grab sampler to take samples from 2 stations consisting of 6 sampling points and then analyzed for composition and organic matter content in sediments.The result showed that the composition of sediments found in coastal waters of pandan consisted of lithogenous( rock, mica, and quartz) and biogenous( litter, foraminifera and molluscs). Especially lithogenous composition of rock dominates the presence in the waters and evenly distributed in each station. The type of rock is derived from erosion and antropogenic activity in the surrounding waters. Keywords: Composition, Horizontal Sediment, Pandan Beach.
INFLUENCE OF STOCKING DENSITY AND FEEDING TOFU WITH DIFFERENT FREQUENCIES GROWTH OF POPULATION SILK WORM (Tubifex sp) Abdi Zulfan; Nuraini '; Netti Aryani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Silk worms are one type of live food favored because it has nutrients that are good for the growth of fish larvae. This study aims to determine the effect of stocking density and feeding tofu to a different frequency on the growth of silk worms. This study was conducted in 26 March to 22 May 2016 located at Jln. Kamboja No. 38, Simpang Baru, Panam, Pekanbaru. The media used in the research is a mixture of mud, dung quail, pulp, bran, sand and EM4. The material used is silk worms obtained from collectors. This research was conducted by an experimental method using a completely randomized design (CRD) factorial with 2 factors and 3 levels of treatment and repeated three times. The treatment in this treatment: P45F1: stoking density 45 g and Frequency 1x1 days, P45F2: stoking density 45 g and Frequency 1x2 days, P45F3: stoking density 45 g and Frequency 1x3 days, P55F1: stoking density 55 g and Frequency 1x1 days, P55F2 : Solid Tebar 55 g and Frequency 1x2 days, P55F3: Solid Tebar 55 g and Frequency 1x3 days, P65F1: stoking density 65 g and Frequency 1x1 days, P65F2: stoking density 65 g and Frequency 1x2 days, P65F3: stoking density 65 g and frequency 1x3 days. The data observed in the form of biomass growth, population, length growth and quality of water. The results of the study, indicating that the stocking density and feeding tofu with different frequenci es no significant effect (P> 0.05) on the growth of biomass, population and the growth of length silk worms. The highest growth of biomass was obtained in treatment P55F3 (stocking density 55g and Frequency 1x3 days) is 185.67 g / 0.098 m2. The highest the growth of length obtained in the treatment P45F1 (stocking density 45g and frequency of 1x1 days) is 1.47 cm and for growth of population is highest in treatment P55F2 (stocking density 55g and frequency of 1x2 days) is 41661.33 ind / 0.098 m2. Water quality during the research for the values of temperature, pH, Dissolved Oxygen (DO) are still in a reasonable range. Based on the results of this study concluded that the stocking density and feeding different tofu can promote the growth of silk wormsKey words: Tubifex sp., stoking density, Frequency, feses of quail., Biomass, population, the growth of length
PEMELIHARAAN IKAN PATIN SIAM (Pangasius hypopthalmus) DENGAN SISTEM RESIRKULASI PADA WADAH DENGAN BENTUK YANG BERBEDA Pasaribu, Bora Marissa; ', Mulyadi; Tang, Usman M.
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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This research was conducted from May to June 2017 for 45 days in HatcheryTIU (Technical Implementation Unit) of Marine and Fisheries Faculty, University ofRiau. The aims of this study were to determine the growth and survival rate of Siamesecatfish which were reared on different shape of the tanks. The tanks were made oftarpaulin plastic material with 30 L of water volume capacity. Stocking density ofexperimental fishes were 30 fishes/tank. The method of the study was an experimentalmethod with 4 treatments and 3 replications. The treatments were: P1 = circle shape, P2 =Square-shape, P3 = Octagonal shape, P4 = Triangular shape, and P5 = Rectangularshaped. The result of this study can be concluded that different shape of tanks have nosignificant effect on growth and survival rate performance of the Siamese catfish fries.The growth performance of round, square, octagonal, triangle and rectangular shape oftanks respectively has given an absolute weight growth of 5.93 g; 6.00 g; 6.18 g; 5.72 gand 5.77 g, then an absolute length growth were 4.88 cm; 4.93 cm; 4.91 cm; 4.76 cm and4.85 cm, a daily growth rate 4.24%, 4.32%, 4.27%, 4.21% and 4.24, the food efficiency92.67%, 92.63% , 94.31%, 92.42% and 91.23% and the survival rate 100%, 97.8%,100%, 98.9% and 100% respectively. The result of water quality measurement which isstill in the optimal range for rearing the Siamese catfish where the temperature was 28-30° C, 5-6 of pH, 5-6 mg/L of DO, 0,03-0,05 mg / L of Ammonia, 0,17-0,20 mg / L ofNitrite, and Nitrate was 0.80-0.98 mg / L.Keywords : Pangasius hypopthalmus, recirculation system, different shape of tanksurvival rate
THE SOCIAL STRATIFICATION ON SUKU LAUT FISHERMEN IN BERAKIT VILLAGE OF TELUK SEBONG DISTRICT OF BINTAN REGENCY OF RIAU ISLAND PROVINCE Wanti Hotnida Tarihoran; Ridar Hendri; Viktor Amrifo
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 in May 2017 on “Suku Laut” fishermen in Berakit village, Teluk Sebong district of Bintan regency of Riau Island Province. The purpose of this research is: to identify social, culture and economic condition of Suku Laut, to know the cause and process of soial stratification of Suku Laut fisherman( in the aspect of power, privilege/previlese and prestige/prestise). The method used is non-participant observation method. The determination of respondents used is cencus technique to 30 families. Data analysis used is qualitative analysis.The result showed that: first, social condition  (kinship of Suku Laut still high; relationship with the community in Berakit village remained good); culture condition (culture values are still preserved, among others: Keduri events, playing musical instruments dan dances during traditional events); economic condition (education becomes mandatory right now, income level is divided into 3  groups is groups with revenues of more than 1 million, 1 million up to 1,5 million  dan less than 1 million). Second,factors that cause of statification in the aspect of power are wealth and education; aspects of previlese (previlege) namely science and the line of stature; aspects of prestige (prestise) is a good position and word. Third, social stratification prosess in society does not result in social gaps (Suku Laut still help each other and communicate with each other). Keywords: Social Stratification, Suku Laut, Bintan, Panglong 
CHARACTERISTICS OF SMOKED CATFISH (Hemibagrus nemurus) PREPARED FROMPOND CULTURE, CAGE AND WILD FISH Maskilin, Jippo; Hasan, Bustari; Leksono, Tjipto
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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This study was aimed to evaluate the sensory quality, proximate composition, amino acids and fatty acids profiles of smoked catfish prepared from pond, cage culture and wild fish. Catfish samples 300-350 grams in weight wastaken respectualy from wild (Kampar river), pond and cage culture in Sungai Paku, Kampar. The fish was smoked using hot smoking method, and the smoked fish was evaluated for smoking yield, sensory quality, proximate composition, amino acid and fatty acid profile.The smoking yield value for smoked fish prepared from pond culture fish was the highest, and then followed by that prepared from cage culture fish and wild fish. The highest fat and moisture composition was found in smoked fish prepared from pond culture fish, then followed by cage culture fish and wild fish. Protein and ash was the highest in smoked fish prepared from wild fish then followed by cage and pond culture fish. Overally, sensory quality and essential amino acid profile of smoked fish was not much different among the fish from different sourcer. However, PUFA was the highest in the smoked fish prepared from cage culture fish them followed by wild fish and pond fish.Keywords: Hemibagrus nemurus,smoked fish,smokingyield, Sensory quality, proximate composition, fatty acid, amino acid
THE EFFECT OF Chlorella sp FLOUR FORTIFICATION ON THE QUALITY OF DODOL ADDED WITH SEAWEED (Eucheuma cottoni) Miranda, Angger; ', Syahrul; Sari, N Ira
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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This study aimed to determine the effect of Chlorella sp flour fortification on the quality of dodol added with seaweed (Eucheuma cottoni) with organoleptic, and chemical. The method used was an experimental method and design as completely randomized design (CRD). The treatment fortification flavour Chlorella sp with consist four taraf, the taraf is (C1) Chlorella sp without flavour, (C2) 2 gram Chlorella sp fortification flavour, (C3) 4 gram Chlorella sp fortification flavour, (C4) 6 gram Chlorella sp fortification flavour. The parameter test of the reseach is organolephtic and chemical.The result of the reseach is 2 gram Chlorella sp fortification flavour showed the best of the treatment, with the characteristic is shiny, green and tidy (7.91), aroma typical of dodol and slightly smelly Chlorella sp (7.99), flavor sweet and a little taste of Chlorella sp (7.96), chewy textures and not sticky chewed (8.28). It contained of water 3.60%, protein 28.52%, fat 21,60% and crude fiber 1,32%.Keywords: Eucheuma cottoni, Chlorella sp, dodol.
Feasibility Analysis of Patin FishBusiness (Pangasius Sutchi) In Sipungguk Village Pond Salo Sub District Regency of Kampar Riau Province Syafii, Muhammad; Darwis, Darwis; Arief, Hazmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSRACT This research was conducted in March 2017 located in Sipungguk Village, Salo Sub-district, Kampar District, Riau Province. The objectives to be achieved in this study is to determine the feasibility of fish farming Patin and to determine the level of sensitivity Patin fish farming in ponds. Location determination is done intentionally (purposive). Determination of respondents in this study is fish farmers Patin in Sipungguk Village Salo Sub District Kampar Regency Riau Province amounted to 7 people. Determination technique of respondents in this study using census method, where all members of fish farmers Patin be 7 respondents. This is in accordance with the opinion of Arikunto (2010), if the number of small respondents from 100 people data collection methods used by census. The result of feasibility analysis showthat (1) fish farming business of Desa Sipungguk is financially feasible with positive NPV investment criteria of IDR 711,668,578, BCR 1.37, IRR 65,13% and Payback Period 4 years (2) sensitivity analysis conducted on fish farming business Patin Sipungguk Village is not sensitive to changes in cost increment by 10%, decrease of benefits by 10%, and cost increase and decrease of benefit by 10%.Keywords: Patin Fish, business feasibility, cultivation, financial, sensitivity
The Business Analysis of Fishing Mangroves Crabs (Scylla sp) Using Lift Nets (Pento) In Concong Dalam Village, Concong Subsdistrict, Indragiri Hilir District, Riau Province Fathur Rahman1; Ridar Hendri; Hamdi Hamid
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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Study was conducted in march 2016 at Concong Dalam Village, Concong Subsdistrict, Indragiri Hilir District, Riau Province. This study aimed to identify large investment, gross income, operational costs, net income and business feasibility using lift nets (pento) in the village of Concong Dalam. Methods used in research was survey by the number of respondents about 18 people. The average total investment of about 30 units lift net (pento) in the village of Concong Dalam IDR 3.672.778,-. The average total operational costs issued by fishermen as much as IDR 1.739.902,- per month with average gross income received by as much as IDR 6.446.400,- per month.So that fishers can obtain average net income as much as IDR 4.706.496,- per month. The businesses of fishing gear of pento is feasible to developed and continued on based on the value of RCR worth 2,06and value of PPC worth 0,78.Keywords: analysis, fishing, mangrove crabs, pento, Concong Dalam
FISH HATCHERY INCOME ANALYSIS IN THE INGIN MAJU GROUP MUNGO REGION LUAK SUB-DISTRICK LIMA PULUH KOTA DISTRICK WEST SUMATERA PROVINCE Surya, Jaka; ', Hendrik; Arief, Hazmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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Abstract

Ingin Maju group is one fishery grouplocated in Mungo Region, Luak Subdistrick, Lima Puluh Kota Districk, West Sumatera Province, which consistenly develops fisheries sector, especially freshwater fish hatchery business. Currently, there are four types of fish hatchery business that is developed in the Ingin Maju group, which are the fish hatchery business Gurami fish, Lele fish, Nila fish and Mas fish. The research aims to analyze the fish hatchery business in Ingin Maju group, included : type of fish hatchery that is most profitable, business feasibility and productivity. Data were collected by survey method from 7 fish farm in Ingin Maju group and its data is processed using income anlysis, feasibility and productivity.The result of the research showed that Gurami, Lele and Nila fish hatchery bussines is the most profitable with the net income of Rp 5.385.700/year. Furthermore, using the business feasibility resulted the average of Revenue Cost of Ratio got by fish hatchery business in Ingin Maju group is 2,09, the average of Financial Rate of Return is 266% and the average of Payback Period of Capital is 0,38. Productivity of fish hatchery business in Ingin Maju group is 606 fish/m2.Keywords : Fish Hatchery Income, Ingin Maju Group
THE QUALITY EVALUATION OF SMOKE FLAVORED CATFISH (Cryptopterus bicirchis) COMPARED TO TRADITIONALLY SMOKED FISH DURING STORAGE Afrinaldi Hamdi; Edison '; Tjipto Leksono
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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The research aimed to compare the quality of smoke flavored to the traditionally smokedcatfish smoked catfish (Cryptopterus bicirchis). The research was using experimental methodand composed as a randomized block design. There were two smoking methods, those weretraditionally hot smoking and liquid smoking. The liquid smoke used for soaking the fish wasvaried to crude liquid smoke and redistilled liquid smoke. The quality of the smoked fishproducts were evaluated for the value of sensory, water content, value of pH, content of totalacid, content of total phenol, and TPC. The result showed that the quality of all smoke catfishproduct could be stored for 30 days at room temperature. At the first day before storage, thevalue of the appearance was 8,8, the value of the odor was 8,7, the value of the flavor was 8,8,and the value of the texture was 8,8. The chemical characteristic showed that the content ofmoisture was 14.38 %, the pH value was 6.7, content of the total acids was 3.75%, content of thetotal phenols was 0.97 ppm, and the TPC was 3.65 cfu/g. However, up to the end of the storage,the ptoduct of traditionally smoked catfish was indicating the highest quality, showed by thehighest sensory value of the product at the end of storage. The value of the appearance was 6,8(the surface appearance was intact, tidy, the color was getting dim), the value of the odor was 7,1(the specific smell of smoke started dwindling and bad odor compounds started to smell), thevalue of the flavor was 6,6 (the savory flavor and the specific flavor started dwindling, bad flavorcompounds started to taste), and the value of the texture was 6,8 (the texture started fragile andsomewhat moist).Key Word : crude liquid smoke, Cryptopterus bicirchis, hot smoking, liquid smoking, redistilledliquid smoke

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