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Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan
Published by Universitas Riau
ISSN : -     EISSN : -     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
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Articles 2,919 Documents
 262   263   264   265   266 
The effectiveness of different dosages of Lime, Alum and Bentonite to improve peat water quality Situngkir, Devi Yanti; Budijono, Budijono; M. Hasbi, M. Hasbi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract The quality of peat water in general is relatively low and it is  needed to be treated by using a coagulation system.  Mixture of lime, alum and bentonite might be used as coagulant agents. This study aims to determine the effectiveness of different dosages of lime, alum and bentonite in improving   the quality of peat water. Peat water samples were obtained from the Kualu Nenas Village, Kampar, Riau. The was CRD method applied and   data  were analyzed using Analysis of Variance (ANOVA) with SPSS version 17.0 software. If there is a significant effect, a   Duncan's Multiple Range Test 5% level of (DMRT) is applied. There were 4 treatments and 3 replications applied namely P1 (0.50 g lime + 1.36 g alum + 0.34 g bentonite), P2 (0.50 g lime + 1.02 g alum + 0.68 g bentonite), P3 (0.50 g lime + 0.68 g alum + 1.02 g bentonite), P4 (0.50 g lime+ 0.34 g alum + 1.36 g bentonite). In each treatment, a liter of peat water was treated with the mixture for 20 minutes. From these results it can be concluded that a mixture of lime, alum and bentonite can improve the quality of peat water. The best treatment was provided by  P2 and the result was pH 7.3, color 32.6 Pt/Co, turbidity 2.10 NTU and organic 37.9 mg / L.Keyword : Alum, Coagulation, Floculation, Turbidity, Organic matters
The effectiveness of used plastic bottles as media in the biofilter for reducing MBAS and phosphate in the laundry liquid waste Syah, Firman; M.Hasbi, M.Hasbi; Purwanto, Eko
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
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AbstractUsed plastic bottles can be used for biofilter media as microorganisme may attach in the bottle surface. To understand the effectiveness of the number of plastic bottles in the anaerob tank in reducing MBAS and phosphate in laundry waste, a research has been done in October-December 2019. This research uses used plasctic bottles with 11 cm height and 6 cm diameter. There were 3 treatments applied, namely P1 (25 bottles) with surface area 11.540 cm2,  P2 (50 bottles) with surface area 23.080 cm2 and  P3 (75 bottles) with surface area 34.619 cm2, 3 replications in each treatments. The seeding time of the biofilm was 25 days. The effectiveness of MBAS decrement was 56.3%, 73.7% dan 80.9% in P1, P2, and P3respectively. While the effectiveness of phospate decrement was 54.9%, 73.3% and 85.0%. in P1, P2, and P3 respectively. Based on data obtained, it can be concluded that the biofilter that was completed with plastic bottleswas able to reduce the MBAS dan phosphate in the laundry liquid waste and P3 provided the best result.Keywords: anaerob, bacteri, waste management, plastic bottle re-use 
GROWTH OF Bacillaria sp. AS A PRELIMINARY STEP ON THE METAL TOXICITY TESTING Br Tarigan, Cresentia Karonina; Budijono, Budijono; M.Hasbi, M.Hasbi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 2 (2021): Edisi 2 Juli s/d Desember 2021
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                    ABSTRACTMicroalgae are primary producers for aquatic organisms and have the ability to absorb heavy metals up to a certain concentration. One of the microalgae is Bacillaria sp. This research was conducted to determine the ability of Bacillaria sp. as a biota requirement for heavy metal toxicity tests. Observation of growth of Bacillaria sp. carried out for 17 days in order to see all growth phases of Bacillaria sp. The results of this study indicate that there are 5 life phases of Bacillaria sp. namely the lag phase, acceleration phase, exponential phase, retardation phase and death phase. Bacillaria sp. qualified as test biota for heavy metal toxicity test according to the Asean-Canada Cooperative Program on Marine Science Phase II. The cell density of Bacillaria sp. on day 4 or at the beginning of the exponential phase is 1.36 x 106 cells/ml it can be seen that the cell density of Bacillaria sp. exceeds the minimum limit (1x106 cells/ml).Keywords:Bacillaria sp., Exponential, Density, Phytoplankton, Toxicity test
THE EFFECT OF COOKING TIME ON THE NUTRITIONAL CONTENT OF THE MUDSKIPPERFISH FLOUR (Periopthalmodon schlosseri) Nita Grecia Damanik; Mirna Ilza; Mery Sukmiwati
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
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ABSTRACTMudskipper(Periopthalmodon schlosseri)had a local nameknownas tembakulfish that could be found in mangroves or mangrove forests. Tembakulfish hadhigh nutritional content because of its high protein contentup to81.22%intembakul fish meat. The research aimed to determine the effect of cooking time on the nutritional valuein the fish flour (proximateand mineral content) and to determine the optimum cooking time. Theresearch used a non-factorial Completely Randomized Design (CRD) consisting 3 different treatment time (60, 75 and 90 minutes)at a temperature of 1000C. The results showed that the different cooking time were not significantly affecting to the physical appearance of the fish flourproduced, those were brownish yellow colour. The treatment of cocking fish for 60 minutesproduced  the best fish flour, indicated by the highest yield up to 21.55%, that wascontainingwater 12.67% (bk),ash4.69% (bk), protein 80.74% (bk), fat 1.48% (bk) and several minerals includingpotassium 0.71% (bk), calcium 15.15% (bk),iron 0.05% (bk), zinc 0.04% (bk), and phosphorus 0.13% (bk). Keywords: fishflour, nutritional content, tembakul fish,
THE EFFECT OF ADDITIONAL ANCHOVY FLOUR (Stelephorus commersonii) ON THE PROCESSING OF DRIED CREAM PUFF ON CONSUMER ACCEPTANCE Muhammad Ihsan; Sumarto Sumarto; Dahlia Dahlia
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
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AbstractThis study aimed to determine the effect of consumer acceptance on dried cream puff with the addition of anchovy flour. The research method used was the experimental processing of dried cream puff with different concentrations of anchovy flour. The research data were analyzed using a one-factor completely randomized design. The test parameters were organoleptic analysis (appearance, aroma, taste and texture), proximate analysis (moisture content, ash content, fat content, protein content and calcium content). Research showed that the addition of anchovy flour had  affected on the flavor of the dried cream puff produced. The use of a concentration of 15% anchovy flour was the best treatment with characteristics, namely: it had a brownish yellow appearance, the aroma of anchovy quite strong, the taste of anchovy flour was felt, the texture was dry, tasty. The result of proximate analysis was the moisture content of 8.19%, the ash content of 5.19%, the fat content of 26.12%, the protein content of 16.46% and the calcium content  of 49.68%.Keywords: anchory, dried cream puff,, taste 
CHARACTERIZATION OF NANO MINERALS WASTE OF KIJING SHELL (Pilsbryoconcha sp) FROM POOL AND RIVER Manullang, Arkadius; Leksono, Tjipto; Iriani, Dian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
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Abstract This research aims to obtain mussel shell nano minerals (Pilsbryoconcha sp) from ponds and rivers with the same treatment seen from physical, morphological and chemical parameters (mineral content). Physical analysis parameters observed were the calculation of yield and degree of whiteness of nano minerals. Morphological parameters observed were SEM and particle size. The same extraction of the two mussel shells was carried out with two treatments with the criteria for the appearance of the color of the nano minerals produced in yellow and slightly white. The highest yield resulting from the same extraction was found in pond mussel shells. The mineral content found in the mussel shell nano minerals has the highest percentage of calcium minerals, with a scale of 100% the mussel shell nano minerals having a higher mineral component. Specifically, the nano mineral size obtained is around 573 nm with a magnification of 20,000x and for the greatest magnification of 40,000x, the nano mineral size is around 1420 nm. The mineral nano powder obtained was shaped like a crystal, and in general the results obtained showed that the crystals formed were of the type of vaterite. Keywords: Nano minerals, Pilsbryoconcha sp, SEM.
THE EFFECT OF USING RING HEAVENER ON CATCH RESULTS IN GILLS NETWORK CAP IN KELURAHAN NIPAH PANJANG 1 TANJUNG JABUNG EAST JAMBI PROVINCE DISTRICT Sunjaya, Legi; Nofrizal, Nofrizal; Isnaniah, Isnaniah
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
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ABSTRACTThis research was conducted on 15-31 October 2019 in Nipah Panjang 1 Kelurahan, Tanjung Jabung Timur Regency, Jambi Province. The purpose of this study is to determine the effect of the use of ring shaped ballast with oval lead ballast on the gill surface fishing gear, so that it can find out which ballast is good to use by looking at the number of catches. The method used in this study is an experimental method that is by using 2 types of gill nets with ballast in the form of a ring and oval tin ballast by using 2 fishing vessels in Nipah Panjang Village 1. From the results of the research that the fishing gill net with ballast ring and oval tin ballast there are differences in the construction components. Where the construction of gillnet gillnet fishing gear construction does not use a lower ris rope, because the ballast ring is fastened directly to the lower net. Whereas in the construction of oval tin gill net fishing gear construction uses a lower ris rope. For the number of catches according to weight (kg) during capture (7 days) the most is on gill net fishing gear with oval tin weights ranging from 91.6 kg / day with an average of 13.09 kg / day. While the number of catches on gillnet fishing gear that uses a ballast ring ranges from 78.6 kg / day with an average of 11.23 kg / day. Therefore, there is no difference in catches in the ballast gill net and oval tin fishing gear.Keywords: gill net fishing gear, ballast ring, construction, troop fish
YIELD TEST OF FRESHWATER MICROALGAE POWDER Chlorellasp. ON BASAL MEDIUM Harifa Syah Putra; Dian Iriani; Ira Sari
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT            Chlorella sp. is a type of green microalgae because it contains chlorophyll a and b and has high nutrition. The growth of these organisms uses various media, one of which is basal medium;meanwhile, there is still little information about the amount of freshwater Chlorella sp. powder produced in the cultivation of the basal medium. The purpose of this study was to determine the yield content of freshwater microalgae Chlorellasp.which was cultivated in basal medium. This research method is experimental and descriptive which consists of three stages, namely sterilization of tools, manufacture of basal media and harvesting of Chlorella sp. Parameters observed consisted of growth and total yield of Chlorella sp.powder. The results showed that the highest number of Chlorellasp. was found on the 12th day of cultivation (2.28 x 106 cells/mL) with the characteristics of the Chlorellasp. powder produced having a smooth texture and dark green color. The yield obtained was 18.36 g (wet weight) and 1.95 g (dry weight). Therefore, the powder of Chlorellasp. can be used for further use as a functional food source.Keywords: Chlorella sp., Basal media, Growth, Yield
SECONDARY METABOLITE COMPOUNDS OF FRESHWATER MUSSEL (Pilsbryoconchasp.) FROM SUNGAI PAKU WATERS Yasti Sari; Syahrul Syahrul; Dian Iriani
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 2 (2020): 2 Juli - Desember 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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AbstractThis study aims to determine the content of secondary metabolites compounds in freshwater mussel from Sungai Paku waters. The research method used was experimental by extracting the secondary metabolites compounds of freshwater mussel using methanol as a solvent. The research data were analyzed descriptively. The test parameters were yield and analysis of secondary metabolites (alkaloids, steroids, flavonoids, saponins, and phenolics). From this research, it shows that the yield of freshwater mussel with methanol extractionwas 1.29% with the content of secondary metabolites compounds was alkaloid (strong), flavonoids (moderate), and steroids (weak).Keywords: freshwater mussel, secondary metabolites, methanol.
THE EFFECT OF hCG (Human Chorionic Gonadotropin) INJECTION WITH DIFFERENT DOSAGE ON OVULATION AND EGGS QUALITY OF DOKUN (Barbodes lateristriga) Qory Aulia Zukrina; Nuraini Nuraini; Sukendi Sukendi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 8, No 1 (2021): Edisi 1 Januari s/d Juni 2021
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ABSTRACTThis research was conducted from March to August 2020 at the Laboratory of Fish Hatchery and Breeding at the Faculty of Fisheries and Marine Sciences, University of Riau.This study aims to determine the effect of hCG injection with different doses on the ovulation of Dokun Fish (Barbodes lateristriga) and to determine the right dose of hCG to produce quality Dokun Fish eggs (Barbodes lateristriga).The treatment in this study was D0: injection of 0.9% NaCl as control fish, D350: injection of hCG at a dose of 350 IU / kg body weight, D450: injection of hCG at a dose of 450 IU / kg body weight, D550: injection of hCG at a dose of 550 IU / kg body weight.The results of this study indicate that the hCG dose of 450 IU / kg body weight is the best with a latency time of 6 hours 6 minutes, the number of eggs from stripping 45 eggs / g of the female parent, an increase in egg diameter of 0.06 mm, an increase in egg maturity of 25.56%, the value of the ovisomatic index (IOS) was 6.32%. Measurements of water quality during the study were temperature of 27-290C, pH 5-6, and DO from 5.2 to 5.6 ppm.Keywords: hCG, Ovulationi, Eggs Quality, Barbodes lateristriga

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