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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
 60   61   62   63   64 
Biomass (Biovolume) of Periphyton in the Salo River Kampar District Riau Province Hosianna Sitorus; Asmika H. Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Periphyton is a group of microorganism that grow in some natural substrates such as rock, wood, plants and aquatic animals. A research aims to understand the biomass of periphyton in the Salo river based on its biovolume has been carried out in April-May 2015. There were 3 stations namely the upstream (S1), midstream (S2), and downstream (S3) of the river. Samplings are conducted 4 times, once/ week. Results shown that the biomass of the periphyton in the S1 was 9.43 mg/cm2, S2 was 14.63 mg/cm2 and S3 was 51.32 mg/cm2. The abudance of periphyton in the all station Salo River is significantly different, there were S1 (9.43 mg/cm2), S2 (14.63 mg/cm2), and S3 (51.32 mg/cm2). Periphyton biomass in the Salo River in general was around 9.43 -51.32 mg/cm2.Keywords: Periphyton, biomass (biovolume), Water Quality, Salo River
HUBUNGAN KANDUNGAN MINYAK DENGAN KELIMPAHAN DIATOM DI PERAIRAN MERAL KARIMUN PROVINSI KEPULAUAN RIAU Susammesin, Verid Aria; Nurrachmi, Irvina; Siregar, Yusni Ikhwan
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The research was conducted in February-March 2015 with a goal to determine the relationship between the oil content and the abundance of diatomsin Meral Karimun waters of Riau Islands Province. The survey method was applied in four stations with three sampling strata,i.e. the surface area, the middle and near the bottom. It revealed that the oil content of water ranged from 0.1797 to 0.2063 ppm and diatom abundance were between 44 to 149 cells/l, which contain of 14 species. Apparently, the oil content of seawater was not correlated (p>0.05) with diatom abundance were the coefficient correlation of (r) = 0.318. The regression equation was y = - 468.350x + 184.297 with a coefficient of determination (R2) =0.101 and a correlation coefficient (r) = 0.318. It was suggested that increasing oil content will decrease the abundance of diatoms in the Meral Karimun waters.Key Words:Meral,abundance, diatoms, oil content
Water Quality in the dam site of the Koto Panjang dam based on Chemical Index Utami, Dwi Ayu; ', Adriman; Sumiarsih, Eni
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

In floating cage fish culture activities, fish feed remains and feces are freed to surrounding water. Degradation of these materials decreases the water quality in general. To understand the water quality in general, a research was conducted from April to May 2015. This research aims to determine the water quality in the dam site of Koto Panjang dam, based on Chemical Index (Kirchoff, 1991). There were three stations. In each station water samples were collected from 3 different depths, in the surface; secchi depths and 2 secchi depths. Water samples were taken 3 times/ week. Water quality parameters measured were temperature, conductivity, brightness, pH, dissolved oxygen, BOD5, nitrate, phosphate and ammoniac. Results shown that water quality in the research area are as follows : Temperature 29-310C, conductivity 24.7-26.6 μS/cm, brightness 100-176 cm, pH 5-6, dissolved oxygen 4.4-6.2 mg/L, BOD5 3.2-10.2 mg/L, nitrate 0.049-0.298, phosphate 0.03-0.087 mg/L, dan ammoniac 0.03-0.182 mg/L. The value of the Chemical index was 44.19-52.97, indicates that this reservoir is fairly polluted.Keywords : Reservoir of Koto Panjang, Water Quality, Chemical Index
The Aquacultur Business of Jelawat ( Leptobarbus Hoevanii) at the Cages In Ranah Kampar Sub-District, Kampar Regency of Riau Province Taslim, Rafika; Ramli, M.; ', Hendrik
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Research on the aquacultur of Jelawat fish (Leptobarbus hoevanii) in the cages held in February 2015 at the Ranah village and Kampar subdistrict Kampar Regency. This research was aimed to find out how much production costs, how large the contribution costs of seeds and feed costs to the total cost of production as well as how large the profits obtained from the cultivation Jelawat fish in the cages. Based on the results of the research the costs of production incurred amounting to Rp. 40.608.500, the average contribution to the total feed cost is 80.5% while seeds cost total contribution towards total cost was 9.99% and the average profit earned by farmers is Rp. 6.515.500/harves. Thus the business in the cages of Jelawat fish profitable and useful the continued.Keywords: Jelawat Fish, of production contribution, advantage
The Analysis of Fishing Effort by Gill Net in Tanah Merah Village Rangsang Pesisir Subdistric Meranti Regency of Riau Province Maskinah '; Hendrik '; M. Ramli
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Research on analysis fishing effort by gill net was condsuded on februari 2015 in tanah merah village, rangsang pesisir subdistrict, kepulauan meranri, regency of riau province. This research aims to analyse large capital investment and business expenses issued, profits and big business with the feasibility of using tools jaring kurau gill net. By method by survey with the determination respondents sampling method purposively namely fisherman instrument a gill net with the size of a fleet of the number of respondents as many as 6 people fishermab consisting of 3 fishing boad owners 5 and 3 gt fishing boad.The average investment of gill net jaring kurau on ship 5 gt is Rp.297.110.000 and the average gill net investment 6 gt is Rp.339.550.000 the fishing effort 5 gt time of the season in one raid is Rp.2.575.000 and time is Rp.1.814.000 season. And in one year the average of profit is Rp.43.875.000.Keywords: gill net, worthiness of business investment, rangsang pesisir.
THE PERCEPTION OF FISHERMAN ABOUT MANUBO CULTURE OF RIVER TAPUNG IN PETAPAHAN VILLAGE TAPUNG SUBDISTRICT KAMPAR PROVINCE RIAU. Pebrianti, Riza; Hendri, Ridar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The Research was conducted in the Petapahan Village Tapung Subdistrict KamparProvince Riau on January to February 2015. The research was aimed to determine theperception of fisherman about Manubo culture of River Tapung in Petapahan Village TapungSubdistrict Kampar Province Riau by the survey methode. The responden was determined bysensus. The result concluded the Manubo culture is fishing togheter with root of tuba once of ayear, exactly on dry season for aims to make a good relationship, growth the togheterness, andincrease community economy who need. The perception of fisherman about the Manuboculture are included on 3 ; they are ; (1).Manubo culture don’t have major impact on the fishingresult, (2).Manubo culture don’t have the major impact the quality of fish; (3).And theexistence of the Manubo culture is decreasing. For the score, the perception of fisherman aboutthe Manubo culture is less well categoried (20-27), and well (28-35). So, the perception offisherman about Manubo cluture have no major impact on fisheries resources pollution becauselimitedness of area and tuba.Keywords : Manubo culture, Perception of fisherman, impact.
COMPERATIF STUDY OF ATOMS FISH CRACKER PROCESSING JELAWAT (Leptobarbus hoevenii Blkr) WITH THE USE OF FISH MEAT AND FISH MEAL FOR CONSUMER ACCEPTANCE Jufrizal Yasin; Desmelati '; Sumarto '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

The study was purposed to determine the consumer acceptance of common carp (Lepotobarbus hoevenii Blkr) atom crackers that added with fish meat compared to that added with fish meal. The fish meal was obtained from traditional markets. The fish initially was processed into fish meal and mixed with tapioca flour, water, seasoning and condiments and then fried. The quality of fish crackers produced was assessed for their consumer acceptance and their chemical composition. The fish cracker added with the fish meat showed the highest consumer acceptance at the rate of 100%. The fish cracker added with the fish meat contained 6,10% moisture, 29,46% protein, 7,00% fat and 2,17% ash.Keywords: atom crackers, consumers acceptance, fish meal, Leptobarbus hoevenii Blkr
CHARACTERISTICS AND AMINO ACID PROFILE OF JELAWAT FISH MEAL (Leptobarbus hoevenii) WITH DIFFERENT COOKING METHODS Nurmawilis Nasution; Edison '; Sumarto '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

This research aims to know the characteristics and amino acid profile of jelawat fish meal with different cooking methods three cooking of methods, they are T0 ( control), T1 (steaming) and T2 (presto). The samples then analyzed the amino acids, the characteristics of flour and proximate level. Research’s result at T0, T1, T2 has a value in a row is amino acids 58.91%, 58.64%, 59.98%; yield 11.64%, 9.19%, 9.44%; whiteness 46.92%, 57.76%, 64.07%; water absorption 73.2%, 61.2%, 56%; water content 6.42%, 8.38%, 8.70%; ash content 9.62%5.22%, 3.52%; protein content of 65.10%, 65.30%, 68.80%; fat content 14.60%, 9.45%, 5.80%. The conclusion of this research was jelawat fish meal with cooking methods presto had the most optimal amino acids and protein content.Keywords: Jelawat fish meal, cooking methods, amino acid
CHARACTERISTICS AND FATTY ACID PROFILE JELAWAT FISH MEAL (Leptobarbus hoevenii) WITH DIFFERENT COOKING METHODS Ngafif Fatuh Zahroh; Edison '; Sumarto '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
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Abstract

This research aimed to determine the chemical characteristics and fattyacid profile jelawat fish meal with different cooking methods. This research usedthe experiment method. Cooking methods used in this research T0 (control), T1(steaming) dan T2 (presto). Proximate analysis of three samples were tested by thesoxhlet method and kjeldahl method. Analysis of fatty acid used GasCromatography method. The average value of proximate jelawat fish meal withdifferent cooking methods T0, T1 and T2 a row are moisture content 6.42%, 8.38%,8.70%, ash 9.62%, 5.22%, 3.52%, protein conten 65.10%, 65.30%, 68.80%, andfat conten 14.60%, 9.45%, 5.80%. Based on the analysis, there are 25 kinds offatty acids identified in jelawat fish meal. The fatty acids consist of 10 kinds ofsaturated fatty acids and 15 kinds of unsaturated fatty acids. The results showedthat jelawat fish meal with different cooking methods T2 have a fatty acid contenwith each total unsaturated fatty acids 46.22%.Keywords: fatty acid, cooking methods, jelawat fish meal.
THE EFFECT OF EDIBLE COATING OF CHITOSAN ON THE QUALITY OF TILAPIA (Oreochromis niloticus) FILLETS STORED AT LOW TEMPERATURES Indra Muhammad Ridwan; Sukirno Mus; Rahman Karnila
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 2 (2015): Wisuda Oktober Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

This research was intended to determine the effect of using chitosan on tilapia(Oreochromis niloticus) fillets stored at low temperatures (5oC) and to determinethe best concentrate of chitosan using natural preservative on tilapia fillets. Theusing of research method was experimental method and the used design wasrandomized block design (RAK) at one factorial of wihch 4 varians wereconsentrate of chitosan solution K0 (0%), K1 (1%), K2 (1,5%), and K3 (2%).While as a block treatments were shelf life of 0, 5, 10, and 15 days. The 2% ofchitosan solution (K3) that was the superior treatment based on odor 7,44, TVB 28mgN/100gram, moisture 58,134%, fat 1,665%, protein 17,878%, pH 6,77 andTPC 4,45x105 coloni/gram on meat of tilapia fillets. While the organoleptic of 1,5% of chitosan solution (K2) was the superior treatment based on appreance 7,76and texture 7,56.Key words: Chitosan, tilapia fillets

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