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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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EXTRACTION OF POLYPHENOL FROM Sargassum sp. AND ITS ENTRAPMENT IN THE NANOCHITOSAN ', Baihakki; ', Feliatra; Wikanta, Thamrin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Seaweed is substantial in bioactive compounds of polyphenols that can scavengefree radicals. The aim of this study was to determine the total content of polyphenoliccompounds in the Sargassum sp and its aktivities by using DPPH and FRAP methods.DPPH methods resulting the value of IC50 (Inhibition concentration) and FRAPmethods resulting the total of Fe3+ reduced to Fe2+. Entrapment of Sargassum sp. extractusing nanoparticle chitosan-based was to protect the active compounds in the extract tokeep well the activity of the polyphenol of extraction. Results showed that totalpolyphenol contents of Sargassum polycistum and S. hystrix at 10 mg/ml were 108,64μg/mL and 65,5 μg/mL respectively. IC50 value on DPPH test of S. polycistum and S.hystrix were 667,234 μg/mL and 2861,49 μg/mL, respectively. The reasults of FRAPtest of S. polycistum extracts at concentrations of 100, 500, and 1000 μg/mL were 67,00;127,14; and 214,59 μmol/μg, respectively, while the S. hystrix extract was 48,47; 62,48;80,22μmol/μg extract. Loading capacity of chitosan-STPP and chitosan-carrageenan onpolyphenol were 0,45 and 0,34%, respectively, and entrapment efficiency of Chitosan-STPP and Chitosan-carrageenan were 21,96% and 39,62%, respectively.Keywords: Polyphenol, Sargassum sp, antioxidant , and nanochitosan
Analysis of Demersal Fish Schooling Distribution in Tarakan Waters North Borneo by Using Hidroacoustic Method Susilawati '; Aras Mulyadi; Mubarak '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research is aimed to determine the distribution of demersal fish schooling and the relation between demersal fish schooling and temperature, salinity and depth of water by using hydroacoustic method. The research was held in August 2014 at the Research Institute of Marine Fisheries Laboratory of Muara Baru, North Jakarta. This research used hydroacoustic method with acoustic descriptor techniques. The amount of fish schooling was obtained by digitization and integration, the values of integration would have generated the position and depth of the waters. Demersal fish schooling which found in waters of Tarakan were comprising of 19 schooling. The dominant fish schooling occured at temperature of 270 C to 280 C and tended to be appear at salinity of 35.5 ‰. Type of demersal fish schooling in Tarakan waters was mostly emerged in form of horizontal contained in the bottom of ocean.Keywords :Kalimantan, Tarakan, Demersal Fish, Fish Schooling , Hydroacoustic
ISOLATION OF PROBIOTIC BACTERIA CANDIDATES ISOLATED FROM BARRAMUNDI (Lates calcarifer) ANTAGONISTIC AGAINTS Vibrio alginolyticus ', Afrimansyah; ', Nursyirwani; Yoswaty, Dessy
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Probiotic is an alternative subtance to prevent fish diseases which is environmentally friendly. The research purpose was to isolate potential probiotic to control bacteria pathogen in barramundi (Lates calcarifer) to control the bacteria pathogen. The probiotic bacteria candidates were isolated from intestine of barramundi by using the spread and streak methods on MRS and TSA media. The antibacterial activity was examinined by using disc diffusion agar method on Zobell 2216E medium. The results showed thirty eight isolates were found which consisted of coccus, white, orange and yellow colonies. Twelve isolates had inhibition against Vibrio alginolyticus,two isolates showed highest inhibition zone and antivibrio activities. The highest inhibition zone (10.04 ± 1,48 mm) and (9,50 ± 2,12 mm) and the antivibrio activities (4.04 mm) and (3.50 mm) were indicated by KPBU2-5 and KPMU2-6 isolates respectively.Keywords: Probiotics, Isolation, Barramundi, Antagonistic.
ISOLATION OF PROBIOTIC BACTERIA CANDIDATES ISOLATED FROM BARRAMUNDI (Lates calcarifer) ANTAGONISTIC AGAINTS Vibrio alginolyticus Afrimansyah '; Nursyirwani '; Dessy Yoswaty
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

Probiotic is an alternative subtance to prevent fish diseases which is environmentally friendly. The research purpose was to isolate potential probiotic to control bacteria pathogen in barramundi (Lates calcarifer) to control the bacteria pathogen. The probiotic bacteria candidates were isolated from intestine of barramundi by using the spread and streak methods on MRS and TSA media. The antibacterial activity was examinined by using disc diffusion agar method on Zobell 2216E medium. The results showed thirty eight isolates were found which consisted of coccus, white, orange and yellow colonies. Twelve isolates had inhibition against Vibrio alginolyticus,two isolates showed highest inhibition zone and antivibrio activities. The highest inhibition zone (10.04 ± 1,48 mm) and (9,50 ± 2,12 mm) and the antivibrio activities (4.04 mm) and (3.50 mm) were indicated by KPBU2-5 and KPMU2-6 isolates respectively.Keywords: Probiotics, Isolation, Barramundi, Antagonistic.
Vertical Distribution of Benthic Foraminifera in Sediments in the Waters of Western Rupat Strait Bengkalis Regency, Riau Province Rica Purnama Sari; Rifardi '; Syahril Nedi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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The research was conducted in May 2014 in the coastal waters of the Western Rupat Strait. The research aimed to determine the distribution patterns of benthic foraminifera and relative velocity of sediments in the Rupat Strait. This research used purposive sampling method which divided location into 3 stations.Benthic foraminifera from 3 stations can be divided into 4 groups. Group I was characterized by Ammonia becarri, Baculogypsina sphaerulata, Bolivina humilis, Bolivina pacifica, Angulogerina angulosa, Bolivina puncata and Cancris auriculus. Group II, was characterized by Textularia schencki, Globorotalia tumida and Loxostomina limbatum. Group III was characterized by Ammonia beccarii and Textularia neoconica. Group IV was characterized by Ammonia beccari and Textularia foliacea. Distribution pattern of benthic foraminifera tended to be clumped. The highest value of L/TL occurred to the north of Rupat Strait, at sampling points 8 and 9 received a supply of sediment from Malacca Strait, L/TL was medium at sampling point 5 and 3. Sampling point 2 which was located at the area south of the Strait of Rupat had a weak current (0.1 m/s) and sampling point 5 which was located far from the coast and influenced the strong currents and tidal estuary 7 of Sungai Mesjid while sampling point close to the tidal currents of Malacca Strait. While L/TL lower in areas affected were strong currents of energy that sampling point 4 (0.13 m/s) and the sampling point 1 was Sungai Mesjid basin, sampling points 1, 3 and 6 which was the mangrove areas.Keyword : Rupat Strait, Sediment, Distribution, Benthic, Foraminifera,
Nitrate Concentration from the Water around the Floating Cage fish culture area and from the area with no cage, in the DAM Site PLTA Koto Panjang Erwin David Sianipar; Madju Siagian; Asmika Harnalin Simarmata
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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In floating cage fish culture activities, degradation of feed remain and fish feces will increase the nitrate content in the surrounding area. A research aims to understand the Nitrate concentration in the water from the cage area and from the area that has no cage has been done from July – November 2014. There were 3 stations, in the 200 m upstream of the cage area (S1), in the cage area (S2) and 200 m downstream of the cage area (S3). Samplings were conducted 4 times, once/2 weeks. In each station, water samples were collected from 3 different depths, in the surface; 2 secchi and 4 secchi depths. Parameter measured were pH, nitrate concentration, phosphate concentration, dissolved oxygen, transparency, temperature and depth. Result shown that the concentration of nitrate in the S1 was 0.02 – 0.09 mg/L; in the S2 was 0.07 – 0.28  mg/L; and in the S3 was 0.05 – 0.18  mg/L. The highest concentration indicates that the Koto Panjang Dam can be classified as eutrophic, especially in the area around the cage. Other water quality parameters measured were temperature : 30.60C – 310C; phosphate 0.03 – 0.35 mg/L; transparency 1.98 m – 2.55 m; depth 27 m – 40 m; pH 5 and free CO2 4.66 mg/L – 15.31 mg/L. The values of water quality parameters indicate that the water quality in the Koto Panjang Dam is good and might be able to support the life of aquatic organisms in that area. Keywords: nitrate, PLTA Koto Panjang Dam, Caged Fish Culture, phosphate  
THE EFFECT OF THE ADDITION OF GINGER (Curcuma xanthorrhiza ROXB) TO FEED TO TOTAL ERYTHROCYTES, HEMATOCRIT, HEMOGLOBIN and GROWTH OF CATFISH (Mystus nemurus) Feri Yulistia; Iesje Lukistyowati; Morina Riauwaty
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was done in March - April 2014 in Fish Disease Parasite and Laboratories and an Experiment of the Faculty of Fisheries and Marine Science University of Riau. The purpose of this research is to know the influence of the addition of curcuma on feed to the total of erythrocytes , hematocrit , hemoglobin and the growth of catfish. A research method used is the design of random complete with one factor which feed containing curcuma with four standard treatment consists of , P0: control without given ) curcuma solution , the P1 ( curcuma solution with a dose of 2 g/kilogram feed ) , the P2 ( curcuma solution with a dose of 4 g/kilogram feed ) , the P3 ( curcuma solution with a dose of 6 g/kilogram feed ). The results of research shows that the addition of a solution on feed curcuma doesn’t impact the condition of fish blood because of poor environmental conditions. It can increase the growth of absolute weight catfish .The total erythrocytes is ranged between 1,25-1,91 mm3/ million cells , hematocrit 13,8-18,5 % and the percentage of hemoglobin 3,9-4,2 g/dL.Keywords: River catfish (Mystus nemurus), ginger, blood catfish
SENSITIVITAS EKSTRAK BUAH MENGKUDU (Morinda citrifolia L.) TERHADAP BAKTERI Streptococcus agalactiae Anzila Rizki W Muharram; Henni Syawal; Iesje Lukistyowati
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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ABSTRACTThe research was conducted from October to December 2014 in the Laboratory of Parasitic Diseases of Fish Faculty of Fisheries and Marine Sciences, and Laboratory of organic and natural material of Faculty of Mathematics and Natural Sciences, University of Riau, Pekanbaru. The purpose of this study to determine the concentration of noni fruit (Morinda citrifolia L.) that can inhibit the growth of Streptococcus agalactiae and safe dose to be given to the fish. The method that had been used was experimental method with concentration : P0: control, P1 (4%), P2 (5%), P3 (6%), P4 (7%), P5 (8%), P6 (9%), P7 (10%). The results show noni fruit solution to Streptococcus agalactiae sensitive average highest inhibition zone formed on treatment P7 (10%) of 9.83 mm and significantly different between treatments (P <0.05). MIC test of extract methanol Morinda citrifolia L. on treatment P2 (5%) of 78 x 108 cfu/mL. LD50 test solution for tilapia (Oreochromis niloticus) extract methanol Morinda citrifolia L. marinated for 24 hours after Reed and Muench analysis contained in the concentration of 1.42%.Key word: Morinda citrifolia L., Streptococcus agalactiae, Sensitivitas, MIC, LD50.
THE ABUNDANCE AND DIVERSITY OF ECHINODER IN TIDAL ZONE OF CINGKUAK ISLAND AND PASUMPAHAN ISLAND WEST SUMATRA Raya, Rosanti Dina; Tanjung, Afrizal; Ikhwan, Yusni
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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ABSTRACTThis research carried out in June 2013 on the island of Pasumpahan Cingkuak and West Sumatra Province. The purpose of research is to determine the abundance and diversity of Echinodermata. The method used in this research is a survey method. Echinoderms types found in Cingkuak Island consists of three species classified into two classes, namely Asteroidea and Holothuridea. While the types of echinoderms are found in Pasumpahan consists of seven species are classified into three classes, namely Asteroidea, Ophiuroidea and Holothuridea. The type and amount of echinoderms contained in Pasumpahan more than Cingkuak Island. From calculations mennjukkan abundance in Pasumpahan higher than abundance on the island Cingkuak, respectively 18.65 and 5 ind / m2. For echinoderm species abundance Cingkuak Island which has the highest individual is kind Culcita schimedeliana with a value of 3 ind / m2 and the lowest abundance of individual species is of type Culcita novaeguineae and Synapta maculata which each have a value of 1 ind / m2. While the abundance of individual species is highest in Pasumpahan of sea cucumber Holothuria atra type with a value of 4.5 ind / m2, Holothuria scabra with a value of 4.4 ind / m2, and the lowest individual types of starfish species Culcita novaeguineae with the value of 1.25 ind / m2, and Synapta maculata with value 1 ind / m2. Based on observational data and the results of the data analysis of the value of diversity index at each study site, echinoderms diversity in Pasumpahan higher than Cingkuak Island is 1.3712 to 2.2879 on the island of Cingkuak and Pasumpahan.Keywords: Cingkuak Island, Pasumpahan, Echinodermata, AbundancePENDAHULUAN
DENSITY AND SOME ASPECTS OF REPRODUCTION FISH TEMBAKUL (Periopthalmus variabilis Eggert) IN THE COASTAL VILLAGE DISTRICT SAFE DARUL RUPAT DISTRICT BENGKALIS Parnanda, Ario; Nasution, Syafruddin; Ghalib, Musrifin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
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ABSTRACTThis study was conducted in September 2014 in the coastal of Darul Aman Village Rupat District Bengkalis Regency. The Mudskipper (Periopthalmus variabilis Eggert) is one kind of fish are known to occupy beaches lined by mangroves. Mudskipper Fish has a bright prospect in the marine biotechnology industry such as food and pharmaceuticals. This study determined the density and reproductive aspects that include sex ratio, the level of gonad maturity, fecundity and diameter eggs located in the coastal of Darul Aman Village Rupat. The method used in this study is a survey method and made three square plots measuring 30 x 20 m2, for analysis in the laboratory using surgical methods, issued gonads and observe the gonads. The result show that the density of Mudskipper fish was low, the sex ratio was 2: 1 between male and female. All levels of gonadal maturity for female fish mostly at levels III, IV and V, whereas for male fish can be found at all levels (I-V). Fecundity values obtained ranged between 112.496-137.698 eggs and egg diameter sizes ranging from 0.235 - 0.55 μm.Keywords: Periopthalmus variabilis Eggert, Density Reproduction, Rupat

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