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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
Arjuna Subject : -
Articles 2,919 Documents
 201   202   203   204   205 
Population Density and GastropodCerithidea quoyiiDistribution Patternin the Mangrove Forest of Sungai Cingam Village Rupat districts Bengkalis RiauProvince Manalu, Lili Yanti; Samiaji, Joko; Tanjung, Afrizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract             Cerithidea quoyii clam is agastropod living in mangrove ecosystem, and knownasprotein source for Rupat people. This research was conducted in July 2018.The purpose of the study was to determine the population density and distribution patterns of C. quoyii in the mangrove forest of Cingam River, Bengkalis Regency, Riau Province.The method used in this study was the survey method. The the research station was determined by purposive sampling method. The results showed that water quality parameters supported the life of C. quoyii, in which water temperatures ranged from 29 - 30°C, salinity ranged from 29-30 ppt, the pH value of the water was 7.Sediment organic matter was classified as high, ranging from 12.29 - 19.46%.The average population density between stations ranged from 1.22-4 ind/m2, the highest density was in station II and the lowest was in station III,while the average value between zones ranged from 0-5 ind/m2,the highest density is in the Lower zone and the lowest in the lower and middle zones of the intertidal zone. Keywords :Population Density, Distribution Pattern, Cerithidea quoyii
ANTIBAKTERIAL ANALYSIS OF STARFISH Culcita novaeguineae EXTRACT IN THE WATER OF WEST BANYAK ISLAND ON BAKTERIA PATOGENIC Vibrio harveyiidanAeromonas hydrophila Dewi, Shinta Rafida; Yoswaty, Dessy; F. Feliatra, F. Feliatra
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT        Antibacterials are needed to treat diseases caused by pathogenic bacteria. One of the waters that can be used as a natural antibacterial compound is starfish. The aim of the study was to determine the antibacterial activity produced by starfish extract C. novaeguineae whether or not the effect of different concentrations of starfish extract on the inhibitory pathogenic bacteria V. harveyii and A. hydrophila. Synthesis of starfish extract was carried out with a concentration of 12.5%, 25 %, 50% and 100% In this study four repetitions were conducted on two test bacteria, positive control (Amoxicillin) and negative control (96% ethanol). The results showed that the antimicrobial content of C. novaeguineae extract could inhibit the growth of pathogenic bacteria with strong ability, the average value of the inhibition zone between 12.1 - 18.23 mm. After the One Way ANOVA test the hypothesis (H1) from this study was received, meaning that there were significant differences or there was an effect of the treatment of starfish extract concentration. Keyword:Extract C. novaeguineae, Zone Inhibit, Pathogenic Bacteria 
ANALYSIS OF ABRATION RATE IN TELUK PAMBANG VILLAGE, KECAMATAN BANTAN BENGKALIS, RIAU PROVINCE Simamora, Yohanna Beata; Galib, Musrifin; Elizal, Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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                                                      Abstract Teluk Pambang Village in Bengkalis Regency which is located in the Riau Province is one of the villages that is very vulnerable to abrasion, because it is an area that faces the Malacca Strait and has a peat texture. This study examined how much the abrasion rate and the extent of the shoreline changes that occurred in Teluk Pambang Village by using Landsat satellite imagery data in the last 20 years. Landsat satellite image data processing consists of geometric calibration, image cutting, image sharpening and digitization so that the coastline position for each data year is obtained. Changes in the coastline from year to year are analyzed by the process of overlapping data for a certain period of time. The results of this study indicate that Teluk Pambang Village experiences abrasion with varying levels of abrasion. changes in coastline Teluk Pambang Village The last 20 years from 1997 - 2017 there was an abrasion of 4.18 m / year and sedimentation of 5.33 m / year. The change of coastline in Teluk Pambang Village is abrasion of 418.88 m and sedimentation area of 218.28 m. There is a positive relationship of current velocity with abrasion velocity and abrasion velocity relationship with wave energy obtained from linear regression results on the graph.Critical beaches that experience maximum abrasion rates are recommended to be immediately addressed so that abrasion does not continue in subsequent years.Keywords: Abrasion, Accretion, Landsat Image, Coastline, TelukPambang Village
The Effect of Different Carbon Sources on the Growth and Survival of Vanname Shrimp(Litopenaeus vannamei) with Biofloc Systems Lubis, Muhammad Reza Idris; Rusliadi, Rusliadi; Putra, Iskandar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT Vaname Shrimp (Litopenaeus vannamei) is one of the cultivation commodities that have high economic value and is classified as easier to cultivate because it is more resistant to disease attacks.. Biofloc technology is one of the right technologies for intensive maintenance of shrimp. The research was conducted on April – May 2018, at the Laboratory of Technical Services Unit Aquaculture of Technology, Faculty of Fisheries and Marine University of Riau. This study aims to understand the best type of carbon source for the growth and survival of vaname shrimp with biofloc systems. This study used a completely randomized design (CRD) of one factor consisting of four levels of treatment with three replications. The treatment used in the addition of different carbon sources are a) Without giving carbon (control), b) Adding carbon sources from molasses, c) Adding carbon sources from tapioca flour, and d) Adding carbon sources from sugar. The results show that the best treatment was the addition of carbon molasses (b) in the maintenance medium which resulted in an absolute weight growth of 1,77 grams, a specific growth rate of 13,20%, and a survival rate of 96,67%. Water quality parameters such as temperature in all treatments  25.8-28.3 oC, pH  7.3 to 8.1, dissolved oxygen 5.3 to 8.3 mg /L.Keyword :Litopenaeus vannamei., Carbon source, Bioflock System, Brackish water 
UTILIZATION OF INTERNET MEDIA BY FISHERIES EXTENSION AGENTS IN THE ROKAN HILIR REGENCY OF RIAU PROVINCE Damanik, Hengky; Hendri, Ridar; Kusai, Kusai
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 from January until February 2019 in the Rokan Hilir district of Riau Province. The purpose of this research was to determine the extent to which internet media utilization was carried out by fisheries extension workers in the Rokan Hilir Regency Riau Province. This research uses census method then analyzed using qualitative method. The results of this research indicate that fisheries extension workers in the Rokan Hilir Regency are highly utilizing the internet as a medium for conducting conselling. Key words : Fisheries Extension Agent, Cyber Extension
ORGANOLEPTIC AND pH ASSESSMENTS ON BAUNG FISH (Mystus nemurus)WITH DIFFERENT MORTALITY PROCESS Fadhlami, Putri Insani; karnila, Rahman; Edison, Edison
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 different mortality process of baung fish that the different mortality process consisted of A1 (dead flounder) and A2 (dead pricker in Medulla oblongata). The assessment of the different ways to fish mortality consisted of organoleptic (eyes, gills, and odors) and pH.The assessment were conducted every 4 hours and the last assessment 12 hours were obtained organoleptic and pH A1 and A2 respectively, eyes 4.6, 5.3, gills 4.3, 5.3, odors 3.3, 4.3, and pH 4.6, 5.3. Based on the results, A1 (dead flounder) had lower organoleptic and pH assessments than A2 (dead pricker in Medulla oblongata).Keywords: Baung fish, Medulla oblongata, mortality process, organoleptic. 
EFFECT OF FORTIFICATION OF FRESHWATER MUSSEL SHELL (Pilsbryoconcha exilis) FLOUR ON COOKIES TOWARDS CONSUMER ACCEPTANCE Putri, Desrili Niatami; Hasan, Bustari; Iriani, Dian
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 fortification of freshwater mussel shell (Pilsbryoconchaexilis) flour on cookies towards consumer acceptance. The experimental method was used in this research with one factor of Completely Randomized Design (CRD), namely the addition of freshwater mussel shell flour on cookies production with 4 levels of concentration: 0% (CK-0), 0.5% (CK-0.5), 1% (CK-1), and 1.5% (CK-1.5). The parameter tested was consumer acceptance with 80 untrained panelists. The results showed that 1% (CK-1) treatment was the best treatment based on consumer acceptance with appearance 100%, color 98.75%, odor 100%, and flavor 100%.The characteristics for cookies produced were neat, the surface of cookies was flawless, brilliant and shiny yellow of color with a little bit brown color on the bottom. The odor of cookies was thought to originate from the mussel shell flour and the ingredients for cookies such as butter and vanilla which have a fragrant and not fishy odor and good taste and the mussel shell flour was not felt. However, based on the statistical analysis that the fortification of mussel shell flour on cookies production did not significantly different among treatment with 95% of confidence level. Keywords: Catfish Shell flour, freshwater mussel, Pilsbryoconcha exilis, cookies, consumer acceptance
Fertility Statusof the Koto TibunReservoir, Kampar Regency, RiauBased on NygaardIndex Nainggolan, Dorma Abigail; HSimarmata, Asmika; Siagian, Madju
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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AbstractNygaardindex is an index which can be used to determine the trophic status of waters, based on phytoplankton composition. To understand the trophic status of the Koto Tibun Reservoir, a research was conducted on February-March 2018. There were three sampling station, namely station 1 (riverin zone), station 2 (transition zone) and station 3 (lacustrin zone). Samplings were conducted 3 times, once/week. Water quality parameters measured were temperature, pH, free CO2, nitrate and phosphate. Results shown that the Nygaard Index values ranged from 2,4-3. The water quality parameters were as follows : temperature : 25.3-25.60C, transparency 75-79 cm, pH 5, free CO2 : 18.64-19.44 mg/L. Based on the Nygaard Index value, the Koto Tibun reservoir can be categorized as mesotrophic to eutrophic. Keyword :Phytoplankton, Koto Tibun Dam, Water Quality Parameters, Mesotrophic 
The Effect of soybean Meal substitutions with Fermented water spinach leaves meal (Ipomoea aquatic Forsk) in artificial Diet on the growth of green catfish (Hemibagrus nemurus) Fingerlings Nababan, Fatisah; Adelina, Adelina; Suharman, Indra
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 research was conducted in September-November 2018. The aim of this research was determine the effect of substitution soybean meal with fermented water spinach leaves(Ipomoea aquatic Forsk) in diet on feed efficiency and growth of green catfish(Hemibagrus nemurus). This research used Completely Randomized Design (CRD) with one factor 5 treatments and 3replications. The treatment in this research was the use of Fermented water spinach leaves (FWSL) meal  in diet different proportions namely P1(0% FWSL), P2 (5% FWSL), P3 (10% FWSL), P4 (15% FWSL) and P5 (20% FWSL). The results showed that the best treatment was found in P4 which was produced 67% feed digestibility, 3,89% specific growth rate, 37,46% feed efficiency of  catfish.  Keywords: Artifical feed, Hemibagrus nemurus, Fermentation, soybean, water 
Organic Pollution Carrying Capacity of the BatangArau River, Padang, Sumatra Barat Province Muhammad Ridho; Sampe Harahap; M. Hasbi M. Hasbi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT BatangArau River received organic matter from domestic activities conducted around the river. As the load capacity of a river is limited, any load addition may damage the ecosystem in the river. The aims of this study is to determine the capacity of the organic pollution load of the BatangArau River based on the BOD and COD content. This research was conducted in June 2017. There were 5 stations, in the upstream (S1), in the middle of the river (S2 and S3) and in the downstream (S4 and S5). Water samplings were conducted 3 times, once per week. Parameters measured were BOD and COD. The load capacity was calculated using a mass balance method. Results shown that the BOD content was 4.3 mg/L and COD 17.7 mg/L. Based on government standard (PP. 82 of 2001), the river is categorized as polluted and it may not be able to receive any organic matter load addition.Keyword :Mass balance method, pollution load, organic matter, domestic activities

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