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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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3-DIMENSIONAL MODELING OF THE ARCHIPELAGO FISHERY HARBOR PIER SIBOLGA USING SAP2000 Syere Novia Giovanny; Arthur Brown; Ronald Mangasi Hutauruk
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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                     ABSTRACTThis research was conducted on April 29th until May 13th 2019 at the Sibolga Archipelago Fisheries Port. The method used is a survey method. The purpose of this study was to determine the shear forces and force moments experienced by the 3D model of the Sibolga Archipelago Fishery Harbor wharf when it was loaded using the SAP2000 application. From the value of the shear force and moment of force, the average pile structure condition is damaged or broken (colored red). Broken piles caused by workloads given to the model of the structure of the pier building, giving workloads resulted in the pier model experiencing shear force and moment of force, the largest load given is the nominal base shear load due to earthquake on the x and y axis. Using SAP2000 application there are two colors on the pile namely blue and red, blue indicates the structure is very strong while the red color shows broken structures. So we get the conclusion that the pile has a limit to the shear force (P, V2, V3) and moment of force (T, M2, M3).Keywords: Jetty, Modeling, Loading, SAP2000
Types and Abundance of Phytoperiphyton in the Plastic Substrate placed in the Putus Lake, SiakHulu Sub-District, Kampar District, Riau Province Yuni Rahayu; Madju Siagian; Tengku Dahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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AbstractPhytoperiphyton is sessile microscopic organisms that attach on the substrates.          A research aims to determine the type and abundance of phytoperiphyton on plastic substrate has been conducted on July-August 2019. There were three sampling stations, namely S1 (inlet area), S2 (middle of the lake), and S3 (the ends of lake). In each station, there were 2 sampling sites, in the surface (20 cm depth) and in the middle of water column (120 cm depth). The number of plastic substrates (8 x 3 cm2) in each station was 24 pieces.Samplingswere conducted once/week for a three weeks period. The phytoperiphytonwas sampledby brushing8 substrates/ sampling. Water quality parameters measured were temperature, transparency, depth, pH, dissolved oxygen, free carbon dioxide, nitrate and phosphate. Results shown that there were 29 types of phytoperiphyton and they were belonged to 4 classes, Bacillariophyceae (14 species), Chlorophyceae (11 species), Cyanophyceae              (3 species) and Chrysophyceae (1 species). The abundance of phytoperiphyton in the plastic substrates placed in the S1 was 42,000 cells/cm2, in S2 was 29,285cells/cm2 and in S3 was34,195cells/cm2. The water quality parameters were as follows: temperature 29-300C, pH 5, transparency 64.1-71 cm, depth 2.46 – 3.33 m, dissolved oxygen 3.67– 4.90 mg/L, free carbon dioxide 3.45-8.11 mg/L, nitrate 0.026-0.047 mg/L and phosphate 0.035-0.058 mg/L.Water quality data indicate that the water of the PutusLakeis suitable to support the life of phytoperiphyton.Keywords :  Oxbow Lake,Sessile Organism,Bacillariophyceae, Chrysophyceae 
FISH CATCHING COMPOSITION OF FISHING GEAR PAYANG AT TIME MORNING AND AFTERNOO IN THE WATERS PASALABAN SOUTHERN BUNGUS PADANG WEST SUMATERA Muhammad Zikrillah; Pareng Rengi; Jonny Zain
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACT Payang is seine net used for catching schooling fish (pelagic fish) on the surface of the water. Both wings are useful for scaring or surprising and herding fish into bags. The method of  operation is to encircle the fish hordes and then the bag is pulled to the boat. The purpose of this study was to determine the composition of the catch of the fishing gear payang in the morning and afternoon. This research was conducted on 25 february – 03 march 2019 in the waters Pasalaban Southern Bungus Padang West Sumatera. The method used in this study is a survey method with direct data collection. The type of cacth is payang fishing gear is tuna fish (Euthynnus affinis), kapak fish (Mene maculata), skipjack tuna (Katsuwonus pelamis), barred mackerel fish (Scomberomorini comersinii), anchovy (Stelephorus sp), pompano fish (Caranx ignobilis), and long jawed mackerel (Rastrelliger sp). Total catch weight in the morning is 75,63 kg and catch wieght in the afternoon is 132,34 kg. The number of individuals caught in the morning is 1.194 tails and in the afternoon is 1.092 tails. The number of individuals in the morning is more than the amount of the time in the afternoon and for the total weight of the catch in the afternoon more obtained from the morning.Key Word:Payang, composition of fishing gear, Bungus, Padang, West Sumatera
PHITOPLANKTON DIVERSITY IN KAMPAR VILLAGE RIVER KUALA TERUSAN SUB-DISTRICT PANGKALAN KERINCI PELALAWAN DISTRICT Puspita, Rita; Adriman, Adriman; Fajri, Nur El
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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AbstractPhytoplankton can act as one of the ecological parameters that can describe the condition of the water. This research was conducted in the Kampar River in Kuala Terusan Village in June-August 2019. The research was conducted at three stations. Sampling was carried out three times in one week intervals. Water quality parameters measured during the study are temperature, brightness, current speed, pH, dissolved oxygen, free carbon dioxide, nitrate, and phosphate. Types of phytoplankton in the Kampar River Kuala Terusan Village 27 types are consisting of 3 classes, namely: Bacillariophyceae (2 types), Chlorophyceae (15 types) and Cyanophyceae (10 types). The abundance of phytoplankton species in the Kampar River in the Kuala Terusan Village ranges from 2914 - 7818 cells / L. The results of the phytoplankton species diversity index (H ') in the Kampar River Kuala Terusan Village ranged from 2.4906 to 2.7727, the uniformity index (E) ranged from 0.6093 to 0.6784, the dominance index (C) ranged from 0.1886 to 0,2616. The water quality of the aquatic environment in the Kampar River in Kuala Terusan Village is as follows: temperature 29-30˚C, pH 5, current speed 0.16-0.24 m / sec, brightness 24-37 cm, dissolved oxygen 3.2-4, 6 mg / L, free carbon dioxide 3.1-3.8 mg / L, nitrate 0.1855-0.2152 mg / L, and phosphate 0.0726-0.1195 mg / L. Keywords: Phytoplankton, Kampar River, diversity
THE CURATIVE METHODS OF MAS (Motile Aeromonas Septicaemia) USE LEAF MANGROVE EXTRACT (Rhizophora sp) ON JAMBAL SIAM FISH (Pangasius hypophthalmus) Mastuti, Rini; Syawal, Henni; Lukistyowati, Iesje
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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ABSTRACTThe research was conducted in May until August 2017 in Parasites and Fish Disease Laboratory of Marine and Fisheries Faculty University of Riau,and also in the Integrated Chemical Laboratory of Mathematics and Natural Science of Health Faculty Riau Muhammadiyah University. The purpose of the study was todetermine the ability of Rhizophoraspto cure the disease which is caused by MAS (Motile Aeromonas Septicaemia) and showed from the profile of Siamese Shark (Pangasius hypophthalmus)erythrocyte. The method was an experimental method with a Completely Randomized Design (CRD), one factor with four treatments, there were : control without curing, 1300 ppm, 1600 ppm, and 1900 ppmrespectively. The immersions was applied twice in two days by leaf mangrove extract (Rhizophora s)p for about 5 minutes. The result showed that leaf  mangrove extract (Rhizophora sp) able to cure Siamese Shark from MAS (Motile Aeromonas Septicaemia) by the immersions method. The best dose was at 1600 ppm wich was shown by the total erythrocyte was 290 x 104 cell/mm3, haemoglobin level was 9,30 g/dL, haematocrit value was 29,66 %, and the survival rate was 84,61%.Keywords: Rhizophora sp, Motile Aeromonas Septicaemia, Haematology
EFFECT OF THE ADDITION BROMELIN ENZYMES IN FEED ON GROWTH AND GRADUATION OF VANNAME SHRIMP (Litopenaeusvannamei) MAINTENANCE IN THE RECIRCULATION SYSTEM Syafrida, Syafrida; Rusliadi, Rusliadi; Mulyadi, Mulyadi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACTFeed is one of the important factors influencing the growth of vanname shrimp (Litopenaeus vannamei). The protein content in paan is the main energy source which acts as a structural component of cell formation in body tissues. Therefore, feed protein has an important role in the process of vanname shrimp growth. In the digestive process, enzymes are needed to hydrolyze proteins into amino acids. This process can be enhanced by adding bromelin enzymes in the feed in vanname shrimp fries. This study aims to determine the best dose of bromelin enzyme addition to feed on the growth and survival of vanname shrimp (L. vannamei) that are maintained in the recirculation system. The method used is a completely randomized complete design (RAL) experimental method one factor with 5 treatment levels and three replications. The treatment proposed is the addition of the enzyme bromelin to the feed at a dose of P0: 0%/kg of feed, P1: 1.5%/kg of feed, P2: 2.0%/kg of feed, P3: 2.5%/kg of feed, and P4: 3%/kg of feed. The results showed that the addition of the enzyme bromelin to diets with different doses in the recirculation system affected the growth of absolute weight, specific growth rate, feed efficiency (P <0.05) but did not significantly affect the survival (SR) (P> 0.05) . The best treatment was on the administration of bromelin enzyme at a dose of 3%/kg of feed with an absolute weight yield of 2.27 g,  specific growth rate of 6.25%, feed efficiency of 96.33%, and survival (SR) of 91.67%. The range of water quality during the study in all treatments namely salinity 15 ppt, temperature 27-29.9 ° C, pH 6-7, dissolved oxygen 6.1-7.7 mg/L, and ammonia ranged from 0.03-0.09 mg/L.  Keywords: Bromelin enzyme, Litopenaeus vannamei, growth
The Effect of a Mixture of Biological Fertilizer on Nitrate Increase in Peat Water Media Abner Arie Pranata Novemberian Marpaung; Syafriadiman Syafriadiman; Saberina Hasibuan
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 from October to November 2019 at the peatland of Kualu Nenas Village, Tambang District, Kampar District, Riau Province. The purpose of this research is to get a comparsion of the mixture between human waste biofertilizer and cow manure biofertilizer for increased nitrate. The method used in this study was the experimental method of using the Complete Random Draft (CRD) (sudjana, 1991) 1 factor with 6 treatment levels and 3 times repeated. The treatment used is P0 (without biological fertilizers), P1 (provision of biological fertilizer 100%), P2 (provision of biofertilizer mixture 25% human waste : 75% cow manure biofertilizer), P3 (provision of biofertilizer mixture 50% human waste : 50% cow manure biofertilizer), P4 (provision of biofertilizer mixture 75% human waste : 25% cow manure biofertilizer), P5 (the provision of biofertilizer 100% human waste). The study was conducted for 28 days, using a dose 750 gram/m2. The results of this study showed a mixture of biofertilizer 75% human waste : 25% cow manure biofertilizer provides the best solution for a nitrate that is soil nitrate at 2,24-7,67 and water nitrate at 1,41-4,75 with a peak increase in the day 14.Keywords: Peat Soil, Formulation Biofertilizer, Nitrate
Community Structure of Bivalve in the Mangrove Ecosystem in the Apar Pariaman Village, Pariaman Utara Sub-district, Sumatera Barat Province Nidanul Akmal Ritonga; Adriman Adriman; Eni Sumiarsih
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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Abstract Mangrove ecosystem in the Apar Village inhabited by numerous aquatic organisms, including bivalve.A research aim to determine the community structure of bivalve in the mangrove ecosystemhas been conducted on July 2019. There was 2 station, with 3 plots/station and 5 subplots/plot. In each subplot, the bivalve were collected by hand. Result shown that there was 3 species of bivalve, namely Polymesoda erosa, Geloina erosa, and Geloina expansa.The diversity index (H’) was 0,681-1,356, the uniformity index (E’) was 0.061-0.453 and the dominance index (C’) was 0.433-0.703. There was 5 species of mangrove, namely Sonneratia alba, Sonneratia caseolaris, Achantus ilicifolis,Nypa fruiticansandRhizophora apiculata. The water quality were as follows :temperature : 26-320C; soil temperature 29-33; pH7;  soil pHwas 5-6 and Salinity was 4-22 ‰.  Keywords: Geloina expansa, mangrove density,diversity index, dominance index 
POTENTIAL AND DEVELOPEMENT STRATEGY OF MANGROVE ECOTOURISM IN SUNGAI RAWA VILLAGE SIAK REGENCY RIAU PROVINCE Oktarina, Ayu; Mulyadi, Aras; Yoswaty, Dessy
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRACT Mangrove ecotourism is an effort to maintain and utilize mangroves. This research was conducted in Sungai Rawa Village, Siak Regency, Riau Province, in September 2019. The objectives of this study were to: 1). Knowing the potential of mangrove ecosystems in Sungai Rawa Village to be developed into a mangrove ecotourism destination, 2). Develop strategies for developing mangrove ecotourism in Sungai Rawa Village. The method used in this study is a survey method. The sampling points and the respondents were determined by the purposive sampling method. The mangrove forest of Sungai Rawa Village has the potential to be developed as a mangrove ecotourism area with good ecological conditions of the mangrove forest, has a high diversity of biota, research and conservation potential as well as a high level of security and hospitality for the community. Community participation in the development of ecotourism in Sungai Rawa Village is classified as low with an IPR value of -0.03 and Mean calculated value of 1.99 while community perceptions about ecotourism development in swamp river villages are high with an IPR value of 2.77 and an average value at 26.65. Based on stakeholder perceptions of the development of Sungai Rawa Village ecotourism is appropriate or feasible to be developed as an ecotourism area. Strategy in developing mangrove ecotourism in Sungai Rawa Village is to implement an aggressive strategy (Growth Oriented Strategy) by prioritizing SO strategies, namely: 1) Establishing mangrove forest areas in Sungai Rawa Village as a conservation area, 2) Increasing access to a wider market, 3) Building collaboration with related agencies and institutions. Keyword: Siak, Ecotourism, Mangrove
THE COMPOSITION CATCHS OF BOTTOM GILLNET IN SUNGAI RAYA WATERS, MERAL DISTRICT, KARIMUN REGENCY, RIAU ISLANDS PROVINCE Saputra, Rio; Yani, Alit Hindri; Brown, Arthur
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 was conducted in April 2019 in Sungai Raya waters, Meral District, Karimun Regency Riau Island Province. The purpose of this research is to find out the types and the number of target fish catches and bycatch on the bottom gillnet. The method used is a survey method which is then analyzed descriptively and using a shortening calculation.The catch during the study was 390,4 kg or 93 tails. The total catch of the bottom gillnet during the study that the target fish, namely the kurau fish, were obtained as the main catch based on the weight of 79,8% and the remainder as a bycatch of 20,2%. While based on the individual obtained as the main catch of 60,2% and remainder as a bycatch of 39,8%. In this study the shortening value of the fishing gear operated was 40%, then the fish is caught gilled. During the study the temperature ranges between 30-310C, the current velocity ranged from 1,3-1,7 mil/jam, and water depths range between 9,1-36 meter.Keywords: Bottom Gillnet, Composition Catch Fish, Sungai Raya Waters

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