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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
Arjuna Subject : -
Articles 2,919 Documents
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THE CONTENT OF ORGANIC MATTER IN WATER AND SEDIMENTS IN COASTAL WATER MIRROR DISTRICTS SERDANG BEDAGAI NORTHERN SUMATERA PROVINCE Sihaloho, Elpon; Nedi, Syahril; Nurrachmi, Irvina
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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 Abstract                Organic matter is one indicator of environmental fertility either on land or at sea. Content Organic matter in the waters will experience an increase caused by discharges from households, agriculture, industry and organic waste from land to coast. The objective of this research is to know the input of organic material entering the waters of Cermin Beach and to know the content of organic material in water and sediment in the waters of Coast Mirror and the relation of organic matter content to water and sediment. The result of calculation of organic matter content in water ranged from 14,19 - 34,76 mg / l and the content of organic matter in sediment ranged from 0,33 - 8,90%. Furthermore, through simple linear regression test known that the relationship of organic matter content in water and sediment has a weak relationship with the correlation r = 0.137. The analysis of sedimentary fractions in the Coastal waters of Mirror is dominated by sandy substrates.  Key Words : Organic Matter, sediment, Water Of Mirror                         
The Effect of Carbon Source Addition of Molasses With Different Doses in Biofloc Systems toward Growth and Survival Rate of Red Tilapia (Oreochromis sp) in Brackish Water Media Manik, Retno Aprita; Rusliadi, Rusliadi; Putra, Iskandar
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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ABSTRACT            This research was conducted on August to September 2017 in the Technical Services Unit (UPT) of Hatchery, Marine & Fisheries Faculty, Universitas Riau, Pekanbaru. The purpose of this study was to determine the best dose of carbon source addition of molasses in biofloc system toward growth and survival rate of red tilapia in brackish water media. The method in this study was the experimental method of completely randomized design (CRD) with one factor, four treatments and three replications. P1:  carbon source addition by 50 ml /m3 of molasses dose, P2: carbon source addition by 100 ml /m3, of molasses dose, P3: carbon source addition by 150 ml / m3 of molasses dose, and P4: carbon source addition by 200 ml /m3 of molasses dose. The results showed that the best treatment of carbon source additionwas at the 200 ml/m3 (P4)of molasses dose. The specific growth rate was 4.25%, 132.29% of feed efficiency, feed conversion ratio (FCR)was 0.75, survival rate (SR) was 81.67%, floc volume was 4.61 ml/l. The qater quality parameters consists of temperature was arround 26-310C, DO was 4.13 to 6.83 mg/ l, pH was 7 to 7.6, 16-20 ppt of salinity and ammonia was from 0.0718 to 0.3625 mg/ l. Keywords: Molasses, Biofloc, Red Tilapia (Oreochromis sp) 
COMMUNICATION STRATEGY OF PENGELOLA KAWASAN KONSERVASI PERAIRAN DAERAH (KKPD) WITH COMMUNITY TO CONSERVE CORAL REEFS IN MALANG RAPAT VILLAGE OF GUNUNG KIJANG DISTRICT OF BINTAN REGENCY OF RIAU ISLAND PROVINCE Ranti Rumapea; Zulkarnain Umar; Kusai Yatim
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 January in Malang Rapat Village of Gunung Kijang District of Bintan Regency of Riau Island Province. This study aims to determine the techniques of KKPD managers in conserving Coral Reefs, knowing communication strategies used KKPD managers with communities in conserving Coral Reefs and knowing the success rate of KKPD managers in conserving Coral Reefs. The method used in this research is qualitative research method.The types of communication strategies used by the managers of the Regional Aquatic Conservation Area with communities in conserving the Coral Reefs are identifying target communities, setting communication goals, designing messages, socializing, creating advertisements, creating good relationships with communities. Keywords: Communication Strategy, Coral Reef, Malang Village Meeting 
CHARACTERISTICS OF HABITAT AND BIVALVE DENSITY IN INTERTIDAL ZONE OF SUNGAI CINGAM VILLAGE OF RUPAT SUB DISTRICT OF BENGKALIS REGENCY OF RIAU PROVINCE Nadratul Jamila; Syafruddin Nasution; Efriyeldi Efriyeldi
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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ABSTRACTBivalves are biota that live in the bottomof waters that can be used as bioindicators to predict water quality. This research was conducted in March-April 2018 which is located in intertidal zone of Sungai Cingam Village of Rupat Sub-district. Thisresearch aims to know the characteristics of habitat, species and density bivalvia. The method used in this research was survey method and determination of sampling location by purposive sampling. Measurement of water quality parameters was done in situ ie temperature, salinity and pH. Substrate type there are2 types of muddy sand and sandy mud. Organic matter is very low and very high. Suspended solids are low and high. Water quality parameters are still favorable for the life aquaticorganisms. Type of bivalves found there are 5 species of Meretrix meretrix, Polymesoda expasa, Pharella acutidens, Pilsbryoconcha exilis, Corbicula javanica. The highest density is at station 3 that is 5.89 ind/m2. The lowest density is at station 1 that is 4.89 ind/m2.Keywords: Habitat Characteristics, Species, Density, Bivalves.
CONCENTRATIONS OF Cr, Cu AND Zn IN THE SHELL HARD CLAM (Meretrix meretrix) FROM THE COASTAL WATERS SEI NAGALAWAN SERDANG BEDAGAI REGENCY NORTH SUMATRA PROVINCE Simanjuntak, Benny Ly; Amin, Bintal; Nedi, Syahril
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACTThis research was conducted on February 2018 by taking samples of M.meretrix  clams in the coastal waters of Sei Nagalawan, Serdang Bedagai Regency in North Sumatra Province. This research aims to know the metals Cr, Cu and Zn concentration in different sizes hards clams M. meretrix with different sizes and  the difference in metal concentration between the stations. This research also aims to know the Metal Pollution Index (MPI) in coastal waters of Sei Nagalawan Village. Cr was highest in 19,5293 µg/g) of the stations is 3. Cu was highest in 4,4187µg/g) of the stations is 3. Zn was highest in 47,8307µg/g) of the larger stations is 3. The value of the index metal pollution (MPI) Coastal Waters of Sei Nagalawan Village is 11,56 is classified in the category of high. Key Words : Heavy Metals, Pollution, North Sumatra, Meretrix meretrix 
CENDRO FISHING TECHNIQUE (Tylosurus crocodilus) USING GILLNET IN THE NUMBER OF PASIA NAN TIGO IN KOTO KOTO TANGAH KOTA PADANG WEST SUMATERA PROVINCE Ahda Rahim Zirli; Bustari Bustari; Arthur Brown
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACTThis research was conducted at the end of June 2017 in Kelurahan Pasia Nan Tigo Padang City West Sumatera Province This study aims to determine the construction of gillnet its fishing techniques using gillnet. Observation method used in this research is the method of observation and interview. From the results of research on the construction of gillnet with mesh size 2 inches without bottom rope, sinker with shortening value 53% Using cendro fishing technique amount of catches weight (kg) that is 3581 kg for 49 times operation. Based on the length of fish cendro (cm) averaging 82 cm and the average body height of 6.8 cm. The main target of catching fish is cendro (Tylosurus crocodilus).Keywords: Fishing Engineering, Construction, Cendro Fish.
ECONOMIC VALUE OF LAKE DRAGON BASED ON CVM APPROACH TO TOURISM ACTIVITIES IN DOSAN VILLAGES PUSAKO DISTRICT SIAK REGENCY OF RIAU PROVINCE Dewi Asmidar Ritonga; Hendrik Hendrik; Trisla Warningsih
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 2 Juli s/d Desember 2018
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Abstract Research on the economic value of Lake Naga Sakti tourism in Siak regency. It has been implemented in February 2018. The objective of the research is to know the perception of the people and visitors as well as the economic value of Lake Naga Sakti. method used to calculate economic value using contingent valuation mathod (CVM)     Public perceptions on the environmental attractions of Lake Naga Sakti is 65% which states good and 56% of visitors stated good. While 75% of public respondents stated comfortable and 74% of respondents stated comfortable visitors. The average value of PAP visitors of tourist attraction is Idr.107.955.325 / year while the respondent value is Idr25.920.000/ year. The result of economic value at Lake Naga Sakti around the tourism object is the total of the value of the community and visitors of Idr133.875.325/ year. Judging from the revenue of this tour is feasible to be developed. Keyword: Economic Value, CVM Approach, Lake Dragon Based 
ANALYSIS OF TECHNICAL AND LEVEL OF ENVIRONMENTAL FRIENDLY OF THE KELONG BILIS IN MALANG RAPAT VILLAGE GUNUNG KIJANG DISTRICT BINTAN REGENCY RIAU ISLANDS PROVINCE. Twenty M Sinaga; Pareng Rengi; Arthur Brown
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 is done to know technical aspect that is general construction, operation technique, catch and also environmental friendliness of kelong bilis fishing gear. This research was conducted in April 2018 in Malang Rapat Village Gunung Kijang District Bintan Regency Riau Islands Province. Kelong bilis is a passive fishing gear and is operated at night by using lamp light as a fish pulling factor and usually operated by two fishermen only. Kelong Bilis fishing gear has a size of 12x11 meters and the mesh size is 10x9 meters made of black nylon (Polypropylene) and  meshsize 0.1 mm. Kelong Bilis's main catch is Anchovy (Stolephorus sp) and Kelong Bilis’s by catch are Cumi cumi (Loligo sp) and Tamban (Spratelloides delicatulus). Based on the results of the research and the results of interviews conducted on 20 respondents using a weighting system of 9 criteria of environmentally friendly fishing gear according to FAO (1995), kelong bilis fishing gear is a very environmentally friendly fishing gear with score 31.7.Keywords: Technical Analysis, Environment Friendly Level, Kelong bilistechnical aspect that is general construction, operation technique, catch and also environmental friendliness of kelong bilis fishing gear. This research was conducted in April 2018 in Malang Rapat Village Gunung Kijang District Bintan Regency Riau Islands Province. Kelong bilis is a passive fishing gear and is operated at night by using lamp light as a fish pulling factor and usually operated by two fishermen only. Kelong Bilis fishing gear has a size of 12x11 meters and the mesh size is 10x9 meters made of black nylon (Polypropylene) and  meshsize 0.1 mm. Kelong Bilis's main catch is Anchovy (Stolephorus sp) and Kelong Bilis’s by catch are Cumi cumi (Loligo sp) and Tamban (Spratelloides delicatulus). Based on the results of the research and the results of interviews conducted on 20 respondents using a weighting system of 9 criteria of environmentally friendly fishing gear according to FAO (1995), kelong bilis fishing gear is a very environmentally friendly fishing gear with score 31.7.Keywords: Technical Analysis, Environment Friendly Level, Kelong bilis
Power Inhibition of ExtractsAzolla microphyllaagainst the Growth of Pathogenic Bacteria (Vibrio alginolyticus, Escherichia coli and Aeromonas hidrophylla Shodikin Aznardi; Dessy Yoswaty; Irwan Efendi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT The research was conducted in February - April 2017 at the Laboratory of Marine Chemistry and Marine Microbiology Laboratory, Riau University and Integrated Chemical Laboratory, Muhammadiyah University of Riau. The purpose of this study was to determine the inhibitory power of Azolla microphylla extracts cultured in 5ppt saline water to the growth of pathogenic bacteria (V. alginolyticus, E. coli and A. hidrophylla). Inhibitory test using 4 concentrations used are 100%, 50%, 25% and 12.5%. The results showed that the antimicrobial content of A. microphylla extract could inhibit the growth of pathogenic bacteria (V. alginolyticus, E. coli and A. hydrophylla) with weak ability with inhibitory zone diameter between 0.15 - 2.15 mm. Keyword: ExtractA. microphylla, Power Inhibition, Pathogenic Bacteria 
The Correlation of Individual Characteristics with Work Motivation Employeesat PT. Karunia Samudera Hindia (Kasahi) Sibolga City, North Sumatra Esra Roida Sirait; Firman Nugroho; Ridar Hendri
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT There are many factors that can cause employees’s motivation in doing their work. Some employees to work for the necessities of life, filling time, looking for work experience, etc. However, every individual working within the company will encounter of people's characters in the field. For that exact compression is required. This study aims to determine the correlation between individuals with motivation to work in PT. Karunia Samudera Hindia (Kasahi) using Rank Spearman analysis processed in SPSS 20. Keywords: Individual Characteristics, Work Motivation, Correlation

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