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INDONESIA
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
 173   174   175   176   177 
ANALYSIS OF Cr, Cu AND Zn IN SOFT TISSUE OF DIFFERENT SIZES OF KEPAH (Meretrix meretrix) FROM PANTAI CERMIN COASTAL WATERS, NORTH SUMATRA Azhara Diana; Bintal Amin; Syahril Nedi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT This research was conducted in April 2018 by taking samples of Kepah (M. meretrix) in Pantai Cermin coastal waters,North Sumatra Province. The aim of this research was to determine metal content (Cr, Cu and Zn) in the soft tissue of kepah (M. meretrix)based on size and different stations, to evaluate the relationship of heavy metals content in soft tissueof kepah with size and to estimate the safety limit of the consumption of kepah. The highest concentration of Cr and Cufound in medium sizes at station 3 (5.683 µg/g and 2.517 µg/g). The highest content of Zn also found in medium sizes but at station 1 (88.333 µg/g). A possitiverelationship between Cr, Cu, and Zn in the soft tissue of the shellfishwith its size was identified.The safe limit of consuming Kepah shellfish from the studied area based on the value of PTWI for Cr, Cu and Zn are1,973,663,49and 46,035 kg/week respectively.Key words: Heavy metals, Pollution, North Sumatra, M. meretrix
THE EFFECT OF DIFFERENT DOSES OF rGH ON GROWTH RATE OF RIVER CATFISH (Mystus nigriceps) IN RECIRCULATION AQUACULTURE SYSTEM Miliani, Ririn; Tang, Usman Muhammad; Pamukas, Niken Ayu
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTThe research aims to determine the the best doses of recombinant growth hormone (rGH) in commercial feed on the growth rate of Mystus nigriceps in culture of resirculation system. The experiment was conducted from 25 July to 24 August 2018 at Laboratorium Cultivation Technology Faculty of The Fisheries of Marine, University of Riau. This research used experimental method use was completely randomized design (CRD) with of 5 treatments and 3 replicates. Wich were treatments 0, 2, 4, 6 and 8 mg/1000g of commercial feed PF 800. Fish samples used are the catfishes  with an average length of 4-5 cm and weight of 0,3-0,6 g are readed in aquarium (40x30x30) cm3 in a density 2 individu/L. The fish were fed with the rGH supplemented diet one three days 5% body weight. The results showed that fish treatment by rGH with doses of 2 mg/1000g feed was the best treatment than other treatment with value of growth body weight (5,15 g) and lenght (5,52 cm), specific growth rate (9,47 %), feed efficiency (83,05%) and feed convertion (1,21) of fish. That conclution is giving rGH significantly affect the growth rate  and the best doses are 2 mg/1000g feed. Keywords:Mystus nigriceps, recombinant growth hormone, resirculation system
The Influence of Different Filters Substrate on Recirculation Systems to the Growth Rates of Selais Fish (Ompok hypopthalmus) Nia Junaira Siambaton; Usman M Tang; Niken Ayu Pamukas
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRAKThis research was conducted from April to Juni 2018, for 40 days in Technology Laboratory of Fisheries Faculty and Marine Sciences, University of Riau. The aim of the research was to know the best type of filter in reducing NH3 concentration and the effect of the water recirculation system on increasing growth and survival rates of Selais fish (Ompokhypopthalmus).used fish sized 5-8 cm. The method used was the experimental method with Completely Randomized Design (RAL) by using one factor of 5 treatments levels and 4 replications. The treatments were1)dacron, 2)bioball, 3) gravel, 4) charcoal, 5) zeolites. The conclusions obtained are use of Different Filter Substratesgive a real influence on growth and survival rate selais fish (Ompok hypopthalmus). The best result was treatment bioball with absolute growth weights (6,22 g), absolute growth length (4,50 cm), daily growth rate (3,81%) and survival rate (98,33%). Water quality parameters such as temperature 27,2-29,2 oC, pH 5,3-6,5, dissolved oxygen (DO) 4,3-5,5 mg/L, ammonia (NH3) 0,038mg/L, nitrite (NO2) 0,393 mg/L dan nitrate (NO3)0,683 mg/L.Keywords : Filter;Resirculation; growth; Survival Rate; Ompok hypopthalmus
PRODUCTIVITY OF FISHERIES BAGAN FISHING BOAT AT BUNGUS OCEANIC FISHING PORT (PPS BUNGUS) WEST SUMATERA PROVINCE Tamara, Rani; Brown, Arthur; Rengi, Pareng
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACT This research was conducted in April - May 2018 at the Samudera Bungus Fishery Port, West Sumatra Province. The purpose of this study is to (1) calculate the fishing productivity of bagan fishing seen from the productivity value of  bagan fishing boat (2) find out the composition of the type of fish caught in the bagan fishing boat. One of the fleets that do a lot of fishing in the Ocean Bungus Fishery Port is one of them is boat charting equipment. Based on the 2018 ship logbook data, there are 111 boat vessels in the Ocean Fishing Port of Bungus. The number of bagan fishing boats that operate in the Ocean Bungus Fishery Port is ships with a size above 30 GT. So in this study 5 samples of the ship that were the majority were taken to calculate the productivity of the bagan fishing boat at Ocean Bungus Fishery Port. Bagan fishing productivity shows the boat productivity value of the bagan fishing for each ship is different based on the total catch (Kg) per effort to catch the number of daily catches where the highest productivity value is 16,58 Kg / minute in KM. Ikhwan Jaya - 02 on hauling the first day and the lowest productivity value was 0,61 Kg / minute in KM. Fadhil - 04 on hauling the first day. Composition of catches of each bagan fishing boat based on the time of withdrawal of the net (hauling) fluctuates. The composition of the type of fish on each bagan fishing boat during data collection is different. The kinds of fish caught were Cakalang (Katsuwonus pelamis), Layang (Decapterus russelli), Tongkol (Euthynnus affinis), Cumi – cumi (Loligo sp.), Teri (Stolephorus sp.), and Japuh (Dussumieria acuta) .Keywords :Bagan Fishing; Productivity; Composition; Bungus Oceanic Fishing Port
GONAD STRUCTURE OF POPULATION AND MATURITY GASTROPODA Telescopium telescopium IN KETAPANG BEACH WATER DESA SUNGAI CINGAM KECAMATAN RUPAT BENGKALIS Jeprin Hasibuan; Syafruddin Nasution; Afrizal Tanjung
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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AstractOne of the biota that lives in mangrove ecosystems is the gastropod telescopium telescopium. Telescopium telescopium has more active behavior at spring tide (high tide and low tide) than low tide (low tide and high low tide). The weight of the gonad will reach a maximum of a moment when the mangrove snail will spawn, then the weight of the gonad will decrease rapidly as long as the spawning is in progress until complete. This research was carried out in June-July 2018, sampling in the mangrove ecosystem of Ketapang Beach waters, Sungai Cingam Village, Rupat District, Bengkalis Regency, Riau Province. The samples were analyzed at the Marine Biology Laboratory of the Faculty of Fisheries and Marine Sciences, Riau University. This study aims to determine the population structure of gonad maturity index and habitat conditions of T. telescopium gastropods in Ketapang Beach waters, Sungai Cingam Village, Rupat District. The method used in this research is survey method. Measurement of water quality parameters is carried out in situ, namely temperature, and determination of sampling locations by purposive sampling, salinity and pH, type of substrate in sandy mud dominance. Water quality parameters are still supportive for the life of mangrove snails. Average density of Tcopcopium T in the mangrove forest of Sungai Cingam Village is low. There were no differences in density between the research stations but there were differences in density between the study zones. The average distribution pattern of T. telescopium is clustered. The size of T. telescopium found ranged from 38-87 mm. The main habitat of T. telescopium is in zone 2 (lowere zone).Keywords: Population structure, Telescopium telescopium, Rupat Island.
POPULATION STRUCTURECerithidea obtusa (GASTROPODS) IN MANGROVE FOREST OF SUNGAI CINGAM VILLAGE RUPAT SUB-DISTRICT OF BENGKALIS REGENCY Sirait, Jhon Lenon; Nasution, Syafruddin; Tanjung, Afizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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 ABSTRACT Cerithidea obtusa is one species of Mollusc from the family Potamididae which has economic value. This research was conducted in Maret 2018 in mangrove forest the village of Sungai Cingam Rupat Sub-District Bengkalis Regency. This research aimed to determine the populations structure of C. obtusa which cover density, distribution patterns and size distribution. This research used survey method and sampling location determinined by purposive sampling. Measurement of waters quality was done by in situ and ex situ which consists of physical and chemical parameters of the waters. Condition of substrate in the study area  was muddy, with sediment organic matter was high 10.69 % -13.95 %. The parameters of waters quality still support for the life of the gastropod. The average density was 5.3 ind/m2, the highest density was in upper zone and which the lowest at middle zone of the intertidal . The distribution patterns was uniform/evenly, while size of the gastropod found has a length 31,8-52,3 mm. Key words: density, size distribution, distribution patterns, C. obtusa.
STUDY OF BELAT BY-CATCH AND DISCARD IN KUALA MERBAU VILLAGE PULAU MERBAU DISTRICT MERANTI ISLAND REGENCY Gian Nofrianda Ilyas; Arthur Brown; Pareng Rengi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTBelat is a passive fishing gear that belongs to a group of traps operatedin the area around the coast.On the operation,belatnot only produce of the main catch but also get the by-catch. This study aims to identify the main results, by-cath and discart. The research method used is survey method by doing direct observation of thebelat catch result and then the catch is identified to fish species, individual numberandfishweight. The results of the descriptive analysis show that the main catches are two types of shrimp that is white shrimp (Penaeus merguiensis) and kekas shrimp (Parapenaepsis sculpilis) with a weight of 18.9 kg. By-catch and discard caught are small fish and young fish,by-catch consistsof 9 species with total weight of 14,49 kg kg and discard consists of 5 types withtotal weight of 4,08 kg.Keywords: Belat, main cath, by cath and discard
THE INFLUENCE OF ADDITION OF GINGER FLOWER (Etlingera Elatior) FLOUR AS A NATURAL PRESERVATIVE ON CATFISH (Pangasius Hypophthalmus) NUGGET IN COLD TEMPERATURE STORAGE (± 5oC) Tri Atika Sari; Dewita Dewita; Sumarto Sumarto
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstrak             This research was aimed to determine the effect of the addition of ginger flower (Etlingera elatior) flour as a natural preservative on catfish (Pangasius Hypophthalmus) nugget in cold temperature storage (± 5oC). The research method used was an experimental method in making catfish nugget with addition of ginger flower flour with different concentration treatments, that was N0 (without ginger flower flour), N1 (5 g of ginger flower flour), N2 (10 g of ginger flower flour), and N3 (15 g of ginger flower flour). The results showed that the treatment without addition of ginger flower flour into catfish nugget (N0) was the best treatment, with appearence 7,37%, taste 7.20%, aroma 7.92%, and texture 7.02%. Based on proximate analysis, the catfish nugget without addition of ginger flower flour had contained water, ash, protein, fat content, and Total Plate Count was 58.14%, 6.02%, 10.03%, 11.64%. Based on Total Plate Count (TPC) that N3  treatment was the best treatment with value 10.9 x 103 CFU/g. Keywords: catfish nugget, ginger flower flour, preservative
POPULATION STRUCTURE AND HABITATCHARACTERISTICS OF HARD CLAM (Meretrix meretrix)IN INTERTIDAL ZONE OF SUNGAI CINGAM VILLAGE OF RUPAT SUB DISTRICT OF BENGKALIS REGENCY Kristoper Aritonang; Syafruddin Nasution; Efriyeldi Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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ABSTRACTHard clam (M. meretrix) is bivalve that lives in the bottom of a water substrate that is a filter feeder. This research was conducted in July 2018 in the intertidal zone of Sungai Cingam Village, Rupat District. This research aims to knowhabitat characteristics, abundance, distribution patterns and size distribution of M. meretrix. The method used in this study was the survey method and determination of sampling location by purposive sampling. Measurements of water quality parameters weredone in situ, namely temperature, salinity and pH. The results showed that the type of substratewas muddy sand and organic mattersare classified as low. Suspended solids have not exceeded sea water quality standards. Water quality parameters were still supported for the life of aquatic organisms. The abundance of M. meretrix population was low, which was1.38 ind/m2. The distribution pattern was random and uniform which is dominated by classes measuring 54.6-63.6 mm from 6 size classes.Keywords: Meretrix meretrix, Abundance, Distribution, Size.
ANALYSIS OF FEASIBILITY OF THYLAPHIA FISH CULTIVATION AT FLOATING NET CAGES IN TANJUNG BUNGA VILLAGE, SUB-DISTRICT PANGURURAN SAMOSIR REGENCY Rizal Damanik; Hendrik Hendrik; Kusai Kusai
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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  ABSTRACT        This research was carried out on 1 until 11 August 2018 in Tanjung Bunga Village, Pangururan District, Samosir Regency. The purpose of this study was to determine how much investment and income costs, analyze how business feasibility is reviewed based on the investment criteria of the KJA business with Scale I, namely 10 cages, Scale II 20 cages, and Scale III 30 cage bags. This study also aims to see how the sensitivity of KJA business is seen from the investment criteria          The results showed that the total investment for the KJA Scale I business was IDR. 262.798.000, Scale II was IDR. 492,450,000 and Scale III was IDR. 752,890,000. Whereas for income per year or 2 times the production period for KJA business on a scale I is IDR 163,344,000, and for scale II is IDR.380,000,000 and scale 3 is IDR. 547,400,000. Based on the results of the calculation of investment criteria obtained, the NPV value of KJA scale I business is IDR. 499.702.702 and the scale II business is IDR. 1,364,825,240 and the scale III business is IDR. 1.919.739.480 for 10 years. BCR for scale I is 1.21, and KJA scale II was 1.31, and KJA scale III was 1.34. KJA business IRR scale I is 48,5% and scale II is 50,8% and business scale III is 51,2%. (IRR> i), meaning that the IRR value is greater than the highest interest rate per year.          From the results of the calculation of sensitivity analysis within 10 years of the three types of KJA business scale, it can be concluded that the KJA business will experience a loss if there is an increase in cost (cost) of 10% and production has decreased by 10% in the fourth scenario. Where the NPV value of the three business scales is still positive, BCR is <1, and the IRR is smaller than the highest interest rate per year, then the business is better stopped if the KJA business experiences something like this. Keywords: Floating Net Investment, Investment, Business Analysis, Sensitivity Analysis.         

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