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INDONESIA
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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SUPPLY FRESHWATER FOR FISHING ON A FISHING VESSEL IN THE SIBOLGA ARCHIPELAGO PORT OF TIBULATI DISTRICT, TAPANULI CENTRAL PROVINCE, NORTH SUMATERA PROVINCE Febriyanti Sitorus; Polaris Nasution; Syaifuddin Syaifuddin
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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AbstractFresh water is an important supply to meet the needs of fishing vessels at sea and to serve the cleanliness needs of fishing ports. Freshwater supplies services will run well if the service runs in accordance with applicable regulations. This study aims to determine the predicted demand, availability and demand of fresh water on fishing vessels and find out how the application of Standard Operating Procedures (SOP) and Quality of Freshwater Supplies Services in PPN Sibolga. To find out things related to the research objectives, interviews were conducted with the port, captain, nausea, fishermen and boat management. The interview refers to the SOP of Freshwater Sales at PPN Sibolga. Interview results are weighted using the Guttman and Likert scale.Keywords: Freshwater, SOP Implementation, Service Quality, Freshwater Sales SOP.
FishIdentification in the Sei Paku Reservoir, Kampar Kiri Sub-District, Kampar Districts, Riau Province Melinda, Devi; Efizon, Deni; Putra, Ridwan Manda
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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                                               AbstractThe Sei Paku Reservoir is inhabited by many fish species, but they never been studied.A study aims to understand the type of fish present in the reservoir, has been conducted in February to April 2019. Fish sampling were conducted six times once/two weeks. The fishes were  captured using lures, gill nets and bamboo traps. Fish samples were then identified.Results shown that there were 21 fish spesies and they were belonged to 10 families, 15 genus, and 4 ordo. Among 21 species captured, 2 species were categorized as ornamental fish, 9 species were consumtion fishand 10 species were ornamental-consumtion fish.The water quality of the reservoir were as follows: temperature of 28°C-32°C, brightness of 26.15-58 cm, pH of 6, disolved oxygen of 3-5 mg/L and carbondioxide 5.99-7.99 mg/L. Keywords: Sei Paku Dam, Ornamental fish, consumtion fish, ornamental- consumtion fish 
ANALYSIS OF MANGROVE HEALTH USINGHEMISPHERICAL PHOTOGRAPHY METHOD IN COASTAL CENTER TAPANULI REGENCY, NORTH SUMATERA PROVINCE Muhammad Isnan Alindra; Joko Samiaji; Aras Mulyadi
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             Hemispherical photography method is one of the new methods used and developed in Indonesia in determining mangrove status. The research was conducted in February-March 2019 in coastal Central Tapanuli Regency, North Sumatra  Province.The purpose of this research was to analyze the status of the health conditions of the mangrove community by knowing the value of density, percentage of cover and important value index based on the categories specified in the Decree of the Minister of Environment No. 201 of 2004 about Standard Criteria and Guidelines for Determining Mangrove Damage.The results of the research showed that environmental ecological conditions supported the existence of mangroves.Morphological identification was obtained as many as 8 species from 3 familiesof mangroves. Based on the standard criteria for mangrove damage (Decree of the Minister of Environment No. 201 of 2004), the percentage of mangrove cover was included in the criteria of being medium to heavy with a value 72,61%-75,64%. The density of mangroves is in the medium to dense category with a range between 1400-1511 trees / ha. The overall condition of the mangrove forest was considered as good and healthy. The analysis of Important Value Index (INP) of each type of mangrove was found in the range of values between 3,25%-100,77%, with the highest index of important species was found in Rhizophora apiculata with a value of 100.77% and the lowest was in Scyphiphora hydrophyllacea with a value of 3,25%. Keywords:Central Tapanuli Regency, Mangrove, hemispherical photography, Percentage cover,Density
The Influence of Frequency Fertilization Different to The Biomass and Population Tubifex sp in The System Resirculation Nanda Rahmania Syafitri; Niken Ayu Pamukas; Rusliadi Rusliadi
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 on 2 september until 23 october 2019 at UPT of seeding laboratory department of aquaculture faculty of fisheries and marine university of riau. The purpose of this research is to know the best frequency of fertilization used quail feces fermentation, tofu waste fermentation and tapioca flour on resirculation system for increase biomass and Tubifex sp population. The method used is completely randomized design (CRD) with 1 factor consisting of 4 treatment levels and 3 replicates (12 unit of tray). Tubifex sp stocking density is used for every media is 10 gr/media, the treatment use frequency seeding each day, each 3 days, each 5 days and each 7 days  with equal seeding dose every media is 45 gr/media. During 52 days maintenance of the best treatment is each 3 days seeding frequency with biomass grows 72,67 gr and population 104.485 ind. Keywords: Tubifex sp, Fermentation, Frequency, Biomass, Population                                                                                                                                   
GROWTH RATE AND MORTALITY POPULATION OF Ompok hypophthalmus IN THE LUBUK SIAM LAKE, LUBUK SIAM VILLAGE, KAMPAR REGENCY , RIAU PROVINCE Alfayeat, Rindo; M. Fauzi, M. Fauzi; Adriman, Adriman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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Abstract Ompok hypophthalmus is one of valuable commodity, and it is a  native species in the Riau.  High intensity of uncontrolled fishing causes the extinction of that species. A research aims to understand the growth rate, mortality, and exploitation rate of the fish in the Lubuk Siam Lake has been conducted in May-July 2019. The fish was sampled using gill nets. Data were analyzed using FiSAT II program. Results shown that the Von Bertalanffygrowth parameters L∞.= 249.9 mm ; K= 0.57 /year, and t0 = -0.2995/ year.Total mortality(Z) = 2.19 ,natural mortality (M) = 1.32,  mortality of catch (F) = 0.87 and level of exploitation (E) = 0.40  and it is slightly below the maximum capture value. Length and weight relationship of the fish in the Lubuk Siam Lake was 2.711 (negative allometric). Keywords: Von Bertalanffy, native fish, oxbow lake, Length-weight relationship
Relationship between Organic Matter and Productivity of the Bakuok Lake Aur Sati Village, Tambang District, Kampar Regency, Riau Province Natasya Margareth Pasaribu; Asmika Harnalin Simarmata; Madju Siagian
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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Abstract Several activities in the Bakuok Lake contribute the input of organic and inorganic matters to the waters, and thus increase the concentration of nitrate and phosphate in the water. A research aims  to  understand the relationship between organic matter and  nutrients (Nitrate and Phosphate) in the Bakuok Lake has been carried out in June-July 2019. There were three stations namely station 1 (around the plantation area), station 2 (in the middle of the lake) and station 3 (around the net cage area).  Each station has 2 sampling points namely the surface and 2 Secchi depth. Sampling was done 3 times, once/week. Water quality parameters measured were biochemical oxygen demand, dissolved oxygen, free carbon dioxide, nitrate, phosphate, temperature, transparency, pH, and ammonia. The water quality value were as follows: biochemical oxygen demand 4.80-6.32 mg/L, dissolved oxygen 6.57-7.54 mg/L, carbon dioxide 9.37-13.86 mg/L,  nitrate 0.0207-0.0319 mg/L, phosphate 0.0385-0.0553 mg/L, temperature 29.3-31.3oC, transparency 58-87 cm, pH 5, and ammonia 0.0132-0.0165 mg/L. The relationship between organic matter with nitrate and phospate was 0.96 or very strong.Keywords: Oxbow Lake, Nutrients, Water Quality
KOMO TUNA FISHING EFFORT (Euthynnus affinis) IN THE ARCHIPELAGO FISHERY PORT OF SIBOLGA NORTH Demiria Simanjuntak; Pareng Rengi; 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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ABSTRACTThe aim of this research is to determine the business units of Komo tuna fishing (Euthynnus affinis) that are suitable to be developed and continued for purse seine and gillnet fishing gear based on biological, technical, social and economic aspects. The method used in this study is a survey method, aiming to get a picture of the object under study, conducted with interviews with fishermen purse seine and gillnet fishing gear. Data analysis using scoring analysis. The results of a combined analysis of biological, technical, social and economic aspects show that the value of the VA purse seine function has the same value as a gillnet fishing gear which is 2.00. Thus the two fishing gear are worth continuing and developing.Keywords: fishing gear, fishing business, kawa-kawa, sustainable fishing
The Effect of Probiotic Addition Frequency InCulture of Baung (Hemibagrus nemurus)in Peat Swamp Water Media With Biofloc Technology Shafiq, Muhammad; Rusliadi, Rusliadi; Putra, Iskandar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 7, No 1 (2020): Edisi 1 Januari - Juni 2020
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ABSTRAKThis research was conducted from February to April 2019, at the Laboratory of Technical Services Unit Aquaculture of Technology, Faculty of Fisheries and Marine University of Riau. The purpose of this study was to determine the frequency of the addition of appropriate probiotics in culture of baung (Hemibagrus nemurus) on peat swamp water media with biofloc technology. This study used completely randomized design (CRD) of one factor consisting of five levels of treatment with three replications.  The treatments applied are (1) once every 5 days, (2) once every 10 days, (3) once every 15 days, (4) once every 20 days, (5) control with a dose of 10 ml/m3 This is able to increase the growth and survival of baung fish (Hemibagrus nemurus), namely by growth in absolute weight 4.12 g, absolute length 4.43 cm, specific growth rate 2.37% feed conversion ratio 0.89, survival rate 83.33%, volume flock 12.5 ml/l. Water quality parameters such as: temperature in all treatments ranged from 26-29 °C, pH ranged from 6.6-7, dissolved oxygen ranged from 5.7 to 6.0 mg/l, and ammonia ranged from 0.003 to 0.112 mg/l.Keywords: Probiotics, Biofloc, Growth, Survival, Baung Fish.
THE EFFECT OF ALCALASE ENZYME CONCENTRATION ON HYDROLYSIS OF FISH PROTEINTEMBAKUL (Periophthalamusminutus) Fdw, Dhiky; Edison, Edison; Ilza, Mirna
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT                Mudskipper(Periophthalmusminutus) is the fish that lives in the mangrove forests. The fish was used as the raw material in this study. The purpose of this study was to determine the effect of adding the best concentration of alcalase enzymes to produce the protein hydrolyzate of mudskipper. The parameters observed were the value of non protein nitrogen (NPN) and protein content  by using the Lowry’s method. The experimental design used was a non-factorial Completely Randomized Design (CRD). The treatment conducted was hydrolyzing the fish to produce the fish hydrolyzates protein at different concentration ofalcalase enzyme (1%, 1.5%, and 2%) for 1 hour at temperature 50 °C and pH 8.5. The results showed that the addition of alcalase enzyme1.5% produced the highest content of protein in fish flour at 86.56% (dw) and water at 8.85% (gw). The product was also showing the highest value of non-protein nitrogen (NPN) at 19.28% and Lowry's protein content at 16.96%. Keywords: Flour, parameter, proximate.
The Structure of Zooplankton Community in Floating Net Cages Around Koto Panjang Hidroelectric Reservoir Kampar Regency Riau Province Fitri, Annisa Sovia; Sumiarsih, Eni; Adriman, Adriman
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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AbstractThe Koto Panjang Hydroelectric Reservoir has changed environmental conditions because of Floating Net Cages (FNC) activities. This condition change the water quality. Zooplankton was biology parameters to determine the changes water quality because zooplankton community is sensitive to changes in aquatic environmental conditions. This research was aims to understand the structure of the zooplankton community around the floating net cagesKoto Panjang hydroelectric Reservoir Kampar Riau. This research has been conducted in May-July 2019. There were three stations. Sampling were conducted 3 times, once/week. The research of zooplankton samples using the sweep method. The results showed density of zooplankton in the around floating net cages Koto Panjang hydroelectric reservoir ranges 1200-1950 organism/L was mesotrophic. The diversity index (H’) ranges 2,602 – 2,979 was moderate criteria. The uniformity index ranges(E) 0,845 – 0,872 was relatively evenly. The dominance index (C) range 0,120 – 0,175 was low dominance. Water quality is supportive for the life of zooplankton was temperatures, pH, transparancy, dissolved oxygen, carbon dioxide-free, and TSS.Keyword: Zooplankton, water quality, density,diversity index, dominanceindex

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