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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
 236   237   238   239   240 
Carrying Capacity Based on Chlorophyll-ain The Betung Lake Betung Village PangkalanKuras Sub-districtPelalawan District Riau Province Diah Sari Ninggrum; Asmika Harnalin Simarmata; Madju Siagian
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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AbstractCarrying capacity is defined as the ability of aquatic environment to support the life of organism in that area. A study aimed to assess the aquatic carrying capacity for extensive fishing in the Betung lake, Betung Village, Pangkalan Kuras Sub-district Pelalawan District, Riau Province. The carrying capacity was determined based on primary productivity using chlorophyll-aconcentration.This research was conducted July-August 2019. There were 3 stations, namely Station 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 (15 cm) and 2 Secchi (160 cm) depth. Sampling was done three times, once a week. Water quality parameters measured werechlorophyll-a, transparency, temperature, pH, dissolved oxygen, CO2, nitrate and phosphate concentration. Results shown that chlorophyll-a:17.81-26.73 µg/L, transparency : 81.3-84 cm, temperature : 28.3-29.7ºC, pH: 5, dissolved oxygen : 3.87-6.12 mg/L, CO2 : 6.27-15.42 mg/L,nitrate : 0.02-0.05 mg/L, and phosphate : 0.02-0.04 mg/L. Based on chlorophyll-a concentration, the carrying capacity in Betung Lake was 1.61 tons/fish/year.Keyword: Oxbow lake, Primary Productivity, and Water quality
Types and Density of Microplastic in the Coastal Area of the Naras Hilir Village, Pariaman City, West Sumatera Province Yolla, Yolla; M. Fauzi, M. Fauzi; Sumiarsih, Eni
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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ABSTRACTMicroplastic is plastic pieces sized ≤ 5 mm. The presence of microplastic in sediment negatively affectsthe environment as well as the benthic organism. As the costal area of the Naras Hilir Village facing the Indian Ocean, the microplastics carried by the water may be stranded in the beach. A research aims to understand the type and density of microplastic present in the coastal area of the village has been conducted on May-July 2019. There were 3 stations, in  the intertidal zone,namely in the low tide, middle and high tide areas. In each station, 15 plots (50 x 50 cm) were placed. Sediment from each plot was scrapped 5 cm depth and then were sieved and microplastics were collected manually. Results shown that there were 4 types of microplastics, namely film, fragmen, foam and fiber. The density of microplastic was 13.24 item/m3. The most common microplasticpresent was film (4.44 item/m3).The highest microplasticdensity was in the high tide (6.49 item/m3), but there was no difference in microplastic densities in all sampling areas (p = 0.097 > 0.05). Keywords:Plastic Waste,Intertidal Zone, Coastal Sediment, Marine Debris 
THE EFFECT OF ADDING PUMPKIN FLOUR TO THE COLOR BRIGHTNESS AND GROWTH OF MOLLY FISH (Poecilia sphenops) Jamal Mirdad Cibro; Mulyadi Mulyadi; Iskandar Putra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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            ABSTRACT This research was conducted from February 2019 to March 2019, for 30 days at the Aquaculture Technology Laboratory of the Faculty of Fisheries and Marine Sciences, Pekanbaru Riau University. The aims of study was to determine the effect of adding pumpkin flour to the brightness of the color of molly fish. The method used in this study was a laboratory-scale experimental method with a completely randomized design (CRD) design with four treatments given the treatment level of P0 = Takari feed, P1 = feed with 5% pumpkin flour, and P2 = feed with 10% flour pumpkinP3 = feed with 15% pumpkin flour. The best results were P3 treatment with feed with 15% yellow pumpkin flour, molly's body color 7.8 scor, absolute weight 1.04 grams and absolute length of 0.8 cm. Keywords: Pumpkin, Molly, feed.
EFFECT OF GIVING PAPAIN ENZYMES ON COMMERCIAL FEED ON THE GROWTH AND SURVIVAL OF BAUNG FISH SEEDS (Hemibagrusnemurus) IN THE RECIRCULATION SYSTEM Riska Rahmawati Harahap; Niken Ayu Pamukas; Rusliadi Rusliadi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT                This research was conducted on February 20 - March 30, 2019 at the Laboratory of Aquaculture Technology, Faculty of Fisheries and Marine, University of Riau. This study aims to determine the best dosage of Papain enzymes mixed in commercial feed to see the growth and survival of baung fish. The research container used was a 60x40x40 cm3 aquarium with 15 aquariums with a stocking density of 15 fish / aquarium. This study used a Completely Randomized Design (CRD) with one factor of five levels of treatment and three replications. Each treatment was given the addition of papain enzymes as much as P1 (0 g / kg), P2 (0.25 g / kg), P3 (0.30 g / kg), P4 (0.35 g / kg), and P5 ( 0.40 g / kg) of feed. The results showed that the best treatment found in P4 (0.35 g / kg) of feed resulted in absolute weight growth of 5.84 g, growth of absolute length of 4.20 cm, specific growth rate of 4.56%, feed efficiency of 124.56% and livelihood 95.53%. Keywords: Papain Enzyme, Growth, Baung Fish (Hemibagrusnemurus) 
THE INFLUENCE OF FEED DIFFERENCES ON CAPTURE RESULTS IN THE PUBE CAPTURE IN THE RANTAU BARU VILLAGE PANGKALAN KERINCI DISTRICT OF PELALAWAN RIAU PROVINCE Dila Asfariani; Arthur Brown; Jonny Zain
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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AbstractThe study of the influence of different bait on the catch of bubu (kabam pantau) was conducted 10 days on May 1 to May 10 2019 in Rantau Baru Village, Pangkalan Kerinci District, Pelalawan Regency, Riau Province. This study aims to compare the bait on the trap fishing tool (Kabam pantau) namely coconut pulp (U1), rice bran bait (U2) and Kroto ant egg bait (U3) to the catch. The method used is an experimental fishing method to support this method by collecting data through direct observation, interviews and documentation. Data that is processed and processed using t test analysis. The three types of bait used there are effects of providing different types of bait on the catch. Coconut pulp feed (U1) obtained the results of the number of 548 individuals with a weight of 2080 grams, rice bran bait (U2) in the number of 1228 individuals with a weight of 3450 grams, and Kroto ant egg bait (U3) with 1222 individuals with a weight of 3435 grams.Keywords: Effect of Bait,Floating Bubu, Catch Results
THE EFFECT OF THE USING OF DIFFERENT ANTIMICROBIAL INGREDIENTS ON THE QUALITY OF FRESH CATFISH (Pangasius hypophthalmus) DURING STORAGE AT COLD TEMPERATURE (±5°C) Romauli Nababan; N.Ira Sari; Syahrul Syahrul
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT This study was aimed to determine the effect of the using of different antimicrobial ingredients (extracts of starfruit leaves, starfruit fruit, and liquid smoke) on the quality of catfish during storage at cold temperature (± 5°C). The method used was the experimental method, composed for non-factorial randomized block design (RBD), and consisting of 4 kinds of the treatment, namely: without antimicrobial agents, starfruit leaf extract 10%, starfruit meat extract 10%, and liquid smoke solution 10 %. All treatments were stored at cold temperature (±5°C), observed in the first day 6 days and 12 days, and evaluated for the total plate count (TPC), the existence of Escherichia coli and Salmonella sp., pH value and organoleptic value (the score of appearance, odor, and texture). The results showed that the best quality of fresh catfish was produced by thetreatment  of the using of 10% starfruit leaf extract. It was indicated by the lowest number of total bacteria (TPC) at 5.2 x 104Cfu / g, the number of Coliform at 3.0 MPN/g, Escherichia coli bacteria and Salmonella sp. were negative, and the lowest pH value at 6.64 after 12 days of storage. The organoleptic evaluation of the catfish was showing the eye appearance value 6.4, withcharacteristic rather bright, the eyeball is flat, the pupil is rather gray, and the cornea is somewhat cloudy; the gill value 6.5, withcharacteristic of the mucus layer began to be somewhat cloudy, rather white color, and less transparent; the meat value 6.04, withthe characteristic of slightly less bright, specific typical species, no milking along the spine and intact abdominal wall; the texture value 5.9with the characteristic of the meat quite dense, elastic when pressed with fingers, and the flesh was difficult to tear separated from the spine; and the odor value 6.04 with the characteristic of fresh odor,typical fresh fish odor after storing for 6 days.  Keywords: Catfish, Pangasius hypophthalmus, Antimicrobials, storage, cold temperatures          
Effect of Substitusion of Tubifex sp.With Artificial Food On Growth and Survival Rate OfLele Mutiara Larvae (Clarias gariepinus Burchell, 1822) Rudy Julius Simanjuntak; 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                          This research aimed to determine the effect of substitusion of Tubifex sp. with artificial food on growth and survival rate of Lele Mutiara larvae. This research was conducted from November 2018 - January 2019 at Fish Hatchery and Breeding Laboratory, Fisheries and Marine Science Faculty of Riau University. The method used is an experimental method with a Completely Randomized Design (CRD) with four treatments and three replications. The treatments were P1 (Tubifex sp. 40 days), P2 (Artificial Food 40 days), P3 (Tubifex sp. 30 days + Artificial Food 10 days), P4 (Tubifex sp. 20 days + Artificial Food 20 days), and P5 (Tubifex sp. 10 days + Artificial Food 30 days). The subjects used in this research were 4 day old Lele Mutiara larvae. The research process was conducted by raising Lele Mutiara larvae in an aquarium containing 15 liters of water with a stocking density of 2 fish/liter for 40 days. Frequency of feeding that conducted was four times a day as much as 50% of the weight of biomass. The result showed that P3 (Tubifex sp. 30 days + Artificial Food 10 days) was the highest growth (2,20 g, 6,27 cm, and 16,79%/day), the best feed efficiency was 58,23%, and the highest survival rate was 92,22%. Keywords :Lele Mutiara Larvae;Tubifex sp., Artificial Food,Survival Rate
ANALYSIS OF BIOMASS AND CARBON RESERVES IN MANGROVE ECOSYSTEM OF TRIKORA BEACH BINTAN DISTRICT RIAU ARCHIPELAGO PROVINCE MANGROVE Febby aprilliza; Bintal Amin; Dessy Yoswaty
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACTThe research was conducted in December 2017 on mangrove ecosystem in coastal area of Trikora beach Bintan district Riau archipelago Provice. The purpose of this study was to analyze the biomass and carbon reserves of the mangrove ecosystem as well as its ability to store carbon in the mangrove ecosystem. The method used in this research is survey method and analysis using allometric equation method to calculate how big biomass and carbon reserved in mangrove ecosystem. The results of this study that average carbon produced from each station was 668.24 kg / m2 and 52.25 kg / m2 and the total carbon per hectare produced was 690.12 ton / ha and 58.05 ton / ha. Keyword: Mangrove, Carbon reserves, Biomass, Trikora Beach.
The Effect Vitamin C Enriched Pellets to Increase the Immunity of Oreochromis niloticus Maytra Wirdona; 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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ABSTRACTVitamin C is a nutrient that is soluble in water and is essential for life as well as for maintaining health, enhancing immunity of fish in fighting infections and as an antioxidant. The study aims to obtain the best dose of vitamin C on total leukocytes, leukocyte differentiation, and phagocytosis activity to increase the immunity of nile tilapia towards disease attack Streptcoccosis. The method used is the experimental method by using the full random draft (RAL) One factor with five levels of treatment and the treatment is repetead three times. After the treatment was applied, namely Kn (without vitamin C enriched pellets and not challenged), Kp (pellets without vitamin C enriched and challenged), vitamin c enriched pellets at a dose of P1 (1 g/kg and challenged with Streptococcus agalactiae), P2 (1.5 g/kg and challenged with S. agalactiae), P3 (2 g/kg and challenged with S. agalactiae). Nile tilapia used in size 8-10 cm with solid tebar 1 tail/3 L water is maintained in the aquarium with a size of 40 x 30 x 30 cm with a feed enriched with vitamin C for 46 days. The fish was challenged with S. agalactiae with a density 108 CFU/mL at the dose of 0.1 mL/tail intramuscular on day 32 after that the fish re-maintained until the 46 days. Measured parameters are total leucocytes, leucocyte differentiation, phagocytic activity and survival rate of nile tilapia. The results shown that the feed enriched with vitamin C and tested with S. Agalactiae has an influence on the immunity of fish with the best treatment in P3 (the vitamin C enriched pellets at a dose of 2 g/kg and challenged) with an average total leukocytes was 8.02 x 104 cells/mm3, lymphocytes were 84.67%, neutrophils was 8.67%, monocytes were 6.66%, phagocytosis activity is 46.00% and the livelihood reaches 93.33%.Keywords : Leukocytes, Tilapia, Vitamin C, Streptococcus agalactiae, Phagocytosis 
UTILIZATION RATE FACILITIES OF TEMPAT PENDARATAN IKAN (FISH LANDI PLACE) AT SUNGAI RAYA DISTRICT OF KARIMUN, RIAU ISLANDS PROVINCE Khairani Khairani; Alit Hindri Yani; Usman Usman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTThis research was conducted in July 2017 offishingland place at Sungai Raya using survey method.Data analysis using technical analysis and facility utilization analysis.The facilities of fishing land place at Sungai Raya consist namelyprimary facilities, functional facilities, and supporting facilities. Of the 9 facilities in TPI Sungai Raya, 5 facilitiesutilizationwere calculated. The facility utilization rate in TPI Sungai Raya ranges from 0,3187% to 154,7967%. One facilities utilization rate were over its conditions optimal such as the area of the harbor pool,four facilities that have an optimal utilization rate are dock, depth of the harbor pool, fuel tank, fresh water tank, and ice factory. Keywords :fishing landplace, Kelurahan Sungai Raya, facilities utilization rate

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