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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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THE EFFECTIVENESS OF FERMENTED MIXED SLAUGHTERHOUSE AND TOFU INDUSTRY WASTE ADDITION ON PEAT WATER THAT IS USED AS Chlorella sp. CULTURE MEDIA Christina Lydia Singal; Budijono Budijono; M Hasbi M Hasbi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACTPeat water has a low nutrient content, but it can be enriched by addition of fermented mixed slaughterhouse and tofu industry waste. This media may be used for growing  Chlorella sp. The purpose of this study was to determine the effect of fermented mixed slaughterhouse and tofu industry waste as alternative nutrients for the growth of Chlorella sp. This study was conducted in September-October 2019. RAL method was applied with 5 different concentrations of mixed solution (50% tofu industry waste + 50% slaughterhouse waste), there were 600 ml/3L (P1), 1,200 ml/3L (P2), 1,800 ml/3L (P3), 2,400 ml/3L (P4) and 0 ml/3L (P5), with 3 repetitions. Parameters measured were Chlorella sp. abundance, nitrate and phosphate content. Results shown that Chlorella sp. grow well in all treatments, except control. The best result was provided by P4 (8.956 x 106 cells/ml) that was achieved on the 6th day. Nitrate and phosphate content   decreased during the experiment, the nitrate was reduced by 16.026 mg/L or 87.3 %, while the phosphate was reduced by 18.347 mg/L or 82.2 %. Based on data obtained, it can be concluded that the peat water can be enriched by addition of fermented mixed slaughterhouse and tofu industry waste and it can be used as nutrients for growing Chlorella sp. Keywords: nutrient, liquid waste, microalgae, algae culture 
CHARACTERISTICS OF ORGANOLEPTIC QUALITY AND pHBAUNG (Mystus nemurus) WITH SOAKING IN THE CHITOSAN SOLUTION Jhosua Fransiskus; Rahman Karnila; Andarini Diharmi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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AbstractThis study was aimed to determine the organoleptic quality and pH of fresh baung (Mystus nemurus) soaked with chitosan solution with different concentrations. This research used the experimental method, by immersing the fish with chitosan solution with a concentration of 0% (without chitosan), 1, 2, and 3% and soaking time 0, 4, 8 and 12, for 16 hours. The analysis parameters were consisted of organoleptics including eye appearance, gills, mucus, meat (color and appearance), odor, texture, and pH test. The results were showed that immersion of baung in high concentration of chitosan can maintain freshness of baung fish. Soaking fish in 3% chitosan solution is able to maintain freshness with freshness for 12 hours aimed at the value of the eye value of 6.79 (sunken eyes, pupils turn white, cloudy corneas); gills with a value of 7.05 (pale red color, without mucus); odor 6.87 (Neutral). Immersion in chitosan solution for 16 hours produced atexture of baung fish 7.13 (rather soft, less elastic when pressed with a finger, difficult to tear meat from the spine); meat with a value of 7.12 (less brilliant, specific type, no milking along the spine, abdominal wall of whole meat);mucus with a value of 7.05 (The mucus layer starts to become slightly cloudy, the color is rather white, less transparent); and pH 6. The best treatment for this is immersion of baung fish with a concentration of chitosan 3%. Keywords: eye,freshness, solution concentration, texture,
THE USE OF SEAWEED (Eucheuma cottonii)AND TOFU LIQUID AS RAW MATERIAL FOR PRODUCING NATA Sulastri Sulastri; Tjipto Leksono; Syahrul Syahrul
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 was aimed to determine the effect of the different raw materials used in the nata processing to obtain the best nata qualitybased on their sensory, physical, chemical, and microbiologyevaluation.The method used was the experimental and composed as a non-factorial Completely Randomized Design (CRD), with 3 levels of treatment, namely:the using of 100% seaweed filtrate, the using of 100% tofu liquid, and the using of 50% seaweed and 50% tofu liquid.The parameters used in this study were organoleptic test(texture, taste, color, and aroma), physical test (thickness and rendement value, and folding test), proximate composition (the content of water, protein, and crude fiber), and the total aerobic microbes (APC).The results showed that the best nata produced  was processed by using 100% seaweed filtrate, characterized by the milky white and attractive appearance, nata tasted in accordance to the raw material used, and was very chewy textured. The best nata product was fulfilled the national quality standard (SNI 01-4317-1996) on nata. It contained 49,1% water, 7,4% protein content, and 37,0% crude fiber content; and was grown by 1,6 x 10 total bacterias.Keywords: nata, seaweed, tofuliquid
The Dynamics of Fitopankton Abundance Lake Tepian Batu Teratak Buluh Village, Kampar Regency Riau Province Magdalena Fitriani Daeli; Madju Siagian; Asmika Harnalin Simarmata
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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                                           Abstract The research of phytoplankton abundance dynamics conducted in June-July 2019 at Lake Tepian Batu. A study aims to know the dynamics of phytoplankton abundance. There were 3 stations namely stasion 1 (inlet area), station 2 (in the middle of the lake) and station 3 (in the end of the lake). In each stations, there were 2 sampling point, in the surface and 2 Secchi depth. Sampling was done 4 times, once/week. Water quality parameters measured were temperature, pH, transparency, dissolved oxygen, free carbondioxide, nitrate, phosphate.Result shown that, temperature 28.75-30.50C, pH 5-5.5, transparency 56.5-63.7 cm, DO 3.13-5.35 mg/L, CO26.00 -12.99 mg/L, nitrate 0.031-0.075 mg/L, phosphate 0.062-0.116 mg/L, phytoplankton abundance at the surface range106,990-258,422 cell/L, and 2 Secchi depth range101,229-153,901 cell/L. Temporal and spatial dynamics of phytoplankton at Lake Tepian Batu were influenced of water quality dynamics such as transparency, nitrate and phospate concentration. Keywords:Dynamics, Phytoplankton, Water Quality, Lake Tepian Batu
THE EFFECT OF OODEVON GONAD MATURATIONOF BETOK (Anabas testudineus Bloch) Rifqa Rahmi; Netti Aryani; Sukendi Sukendi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACT The aim of this research was to determine the effect of oodev on gonad maturation of Betok (Anabas testudineus Bloch). This research was conducted from December 2018 - February 2019 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 four treatments and three replications.The treatment were P1 (Oodev 0 ml/kg body weight), P2 (Oodev 0,3 ml/kg body weight), P3 (Oodev 0,5 ml/kg body weight), and P4 (Oodev 0,7 ml/kg body weight).The result showed that Oodev on gonad maturationof P4 (Oodev 0,7 ml/kg body weight) was the heighest with gonad maturation, latency period 5.03 hours, number off eggsstripping 200 egg/g broodstock, ovisomatic index 23,67%, increase of diameter egg 0,167mm, increase of eggs maturation 11%, fertilization rate 91,66%, hatching rate 97,07%, and survival rate 97,07%. 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 :Anabas testudineus Bloch, Oodev, Gonad Maturity
The Effect of Vitamin C Enriched Pellets on the Erythrocytes Profile Oreochromis niloticus Athif Amirah Elza; Morina Riauwaty; Henni Syawal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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                                         ABSTRACT Vitamin C important role in maintaining the body's physiological processes, preserving enzymatic activity in collagen biosynthesis, and also plays a role in wound healing. This study aimed to obtain the best dose of vitamin C enriched pellets on red blood profile and growth of Nile Tilapia (Oreochromis niloticus). The study was conducted from May to August 2019 in the Laboratory of Parasitic and Fish Disease, Fisheries and Marine Faculty, Riau  University. The research method used was the experimental method using a one factor Complete Design (RAL) with five treatment and three replicates. The treatments used were Kn (non-vitamin C enriched pellets and non-infected with Streptococcus agalactiae), Kp (non-vitamin C enriched pellets and infected with S. agalactiae), vitamin C enriched pellets P1(1 g/kg), P2(1.5 g/kg), P3(2 g/kg) and infected with S. agalactiae. Tilapia reared for 46 days by vitamin C enriched pellets, then tested on the 32ndday with S. agalactiae bacteria with a density of 108CFU/mL at a dose of 0.1 mL / head intramuscularly, then the fish were re-maintained until the 46thday. The parameters measured include clinical symptoms, total erythrocytes, hemoglobin, hematocrit, absolute weight and survival. The results showed that the best treatment at P3(2 g / kg) yielded total erythrocytes 243.66 x 104cells / mm3, hemoglobin level 8.66 g%, hematocrit value 32.00%, absolute weight growth 21.20 g, and overall survival is 93.33%.  Keywords : Oreochromis niloticus, Vitamin C, Sterptococcus agalactie, Erythrocytes Profile, Growth
RELATIONS WITH TOTAL CONTENT OF ORGANIC MATTER IN THE AREA MANGROVES ABUNDANCE OF PHYTOPLANKTON IN TANJUNG BALAI ASAHAN WATERS OF NORTH SUMATRA Joenathan Sarumpaet; Irvina Nurrachmi; Sofyan Husein Siregar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACT The purpose of this study to determine the content of organic matter, knowing the abundance of phytoplankton in the waters of Tanjung Balai Asahan, and determine the relationship between total organic matter content of the abundance of phytoplankton in the waters of Tanjung Balai Asahan. This study was conducted in July - August 2019, The method used in this study is a survey method. Observation station determined by purposive sampling. Results of water quality measurements showed that the temperature of between 29.5 to 33 ° C, pH 6-7, 23-25 ppt salinity, brightness ranged from 24.25 to 49.8 cm, the average flow velocity ranges from 0.15 to 0, 48 m / sec, and a depth ranging from 2.7 to 6 m. The survey results revealed thattotal organic matter content ranged20.44 to 27.14 mg / l, Phytoplankton are found there are 6 genus of phytoplankton that is, Isthmia sp, Navicula sp, sp Pleurosigma, Skeletonema sp, Coscinodiscus sp, sp Triceratium, Average - Average abundance of phytoplankton ranged1930.19 -3603.03 ind / l, Total organic matter content relationships with an abundance of phytoplankton have a strong relationship with the coefficient (r) = 0.80, where the increase in total organic matter content of the abundance of phytoplankton will increase. Keywords: Phytoplankton, Total Organic Ingredients, Water Tanjung Balai 
Relationship Between Water Quality andthePhytoplankton Abundanceof the Tanjung Balam Lake waters, Kampar District, Riau Province Mustika Firdaus; Madju Siagian; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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                                            ABSTRACTTanjung Balam Lake receive organic and anorganic matter from palm plantation and the water from the Kampar River. To understand the relationship between water quality and the phytoplankton abundanceof the Tanjung Balam Lake, a research has been conducted in June – July 2019. There were three sampling points, namely in the inlet, in the middle of the lake and in the end of lake. In each sampling point, the water was sampled from the surface and 2 Secchi depth. Samplings were conducted 3 times, once/week. Water quality parameters measured were temperature, transparency, depth, pH,dissolved oxygen, CO2, nitrate, phosphate and the abundance of phytoplankton. Results shown that the temperature was 28-30.30C, transparency was 49-52 cm, depth was 137.7-236.7 cm, pH was 5, dissolved oxygen was 4.03-6.57 mg/L, CO2 was 3.83-6.13 mg/L, nitrate was 0.016-0.030 mg/L and phosphate was 0.083-0.096 mg/L. There were 62 species of phytoplankton, namely Chlorophyceae (24 species), Trebouxiophyceae (5 species), Zygnematophyceae (4 species), Euglenophyceae (14 species), Bacillariophyceae (10 species), Chyanophyceae (4 species) and Cryptophyceae (1 species). The phytoplankton abundance in the lake was 431,394-891,640 cells/L. Data analysis indicate that any changing in water quality parameter will affect the abundance of phytoplankton. Keywords:Kampar River, Chlorophyceae, Cryptophyceae,Nitrate Concentration, Oxbow Lake
SENSITIVITY OF THE JUICE OF KAFFIR LIME FRUIT (Citrus hystrix) AGAINST BACTERIA Aeromonas hydrophila Sihombing, Jefry Maju Arytha; Lukistyowati, Iesje; Riauwaty, Morina
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT               Disease that often develops in aquaculture is one of them is red spot disease.This disease is often calledMotile Aeromonas Septicemia (MAS) caused by Aeromonas hydrophila. Alternative ingredients that can be used as prevention or treatment of fish diseases arekaffir lime plant (Citrus hystrix) which is antibacterial and antimicrobial.This research was conducted in February - June 2018 in the Laboratory of Parasites and Fish Diseases, Faculty of Fisheries and Marine, University of Riau. The purpose of this study was to determine the sensitivity of the juice of kaffir lime to inhibit the growth ofAeromonas hydrophila bacteria, dosage of Minimum Inhibitory Concentration (MIC), and continued the LD50test obtained from the MIC dose where the test of LD50solution of kaffir lime on catfish (Pangasius sp.) by immersion. The research method used was the experimental method, for the sensitivity test using the Kirby Bauer disc method with the concentrations used were 100%, 90%, 80%, 70%, 60%, 50%, 40%, 30%, 20%, 10% , 9%, 8%, 7%, 6%, 5%, 4%, 3%, 2%, 1%, 0.9%, 0.8%, 0.7%, 0.6% and controls ( Oxytetracycline). The results showed that the juicce of kaffir lime was able to inhibit the growth of A. hydrophila bacteria starting from doses of 100% - 0.6% with an average diameter of inhibition zones ranging from 23.03 - 6.68 mm. The dose of Minimum Inhibitory Concentration (MIC) juice of kaffir lime fruit is 0.7% with an average number of colonies of 289.33 CFU / mL. The test results of LD50 juice of kaffir lime (C. hystrix) on catfish (Pangasius sp.) By immersion method for 24 hours were at a concentration of 0.791%. Keywords:C.hystrix, Motil Aeromonas Septicemia, Kirby Bauer discs, Minimum                    Inhibitory Concentration (MIC), LD50
THE EFFECT OF FREQUENCY OF GIVING Tubifex sp TO GROWTH AND SURVIVAL OF GOURAMY LARVAE (Osphronemus gouramy, Lac) Pratama, Yudi Anugrah; Aryani, Netti; Nuraini, Nuraini
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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AbstractGouramy (Osphronemus gouramy) is an economic freshwater fish. This study aims to effect of frequency given of Tubifex sp on growth and survival of gouramy (O. gouramy Lac) larvae. The method was an experimental method using a Completely Randomized Design (CRD) with five levels of treatment and three replications. The treatment given is the frequency of natural feeding of Tubifex sp. with the level of treatment: (P1) 1 x daily, (P2) 2 x daily, (P3) 4 x daily, (P4) 6 x daily, (P5) 8 x daily. Test fish used were 10-day-old fish larvae with stocking density of 2 fish / liter. The results showed that the frequency of given of Tubifex sp. different effect on the growth of gouramy larvae. The best results were in the treatment ofP4 with a frequency of 6 times a day at intervals of 3 hours, the result weight and length growth of 0.42g and 2.24 cm respectively, a specific growth rate of 7.80%, and a survival rate of 87.78 %.Keyword:Osphronemus gourami, Survival Rate

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