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Elizal, Elizal
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Environmental Science Immunology & microbiology Physics Public Health Social Sciences Other

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CHANGE OF CORAL REEFS CONDITION IN PARK TOURISM (TWP) PIEH ISLAND WEST SUMATERA PROVINCE Mulyadi, Hari; Samiaji, Joko; Elizal, Elizal
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 in July 2017 at Pieh Island Conservation Area of Pieh Water Park of West Sumatera Province. This study aims to determine the condition of coral reefs in the waters of Pieh Island and to determine the changes in the condition of coral reefs in Pieh Island. The method used was survey method using Underwater Photograph Transect (UPT), consisting of 3 stations where each station was divided into 2 depth ie at depth of 5 meter and 10 meter.               The type of coral reefs on Pieh Island was in the group of fringing reef. The forms of coral growth found in the study area were Acropora branching (ACB), Acropora digitate (ACD), Acropora encrusting (ACE), Acropora submssive (ACS), Acropora tabulate (ACT), Coral encrusting (CE), Coral massive (CM ) Coral Foliose (CF) and Coral Submassive (CS). Condition of coral reefs at Pieh Island at 5 meter depth was heavily devastated with the percentage of 22.80%, while percentage of coral cover at 10 meter depth was 58.67% categorized coral cover good. Keywords: Pieh Island, Coral Reef, Underwater Photograph Transect
STUDY OF MARINE ECOTOURISM POTENTIAL THE SIRANDAH ISLAND BUNGUS TELUK KABUNG REGENCY OF WEST SUMATRA PROVINCE Gustasya, Yosy; Yoswaty, Dessy; 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 Sirandah Island is one of the small islands in Padang City, a tourist destination of the bustling islands visited today. This studywas conducted inMay 2018, aims to analyze the suitability of the area owned by Sirandah Island by taking into account the land suitability index of Sirandah Island, so that it can be developed as a tourist area and marine ecotourism.The method used is tourism conformity analysis with calculation of score and weight. The results show that the condition of the coastal area around Sirandah Island is still in good condition. Overall the island is surrounded by shore beaches, white sandy sediments, classified as sloping, the coast is wide and wide. Waters around the island has a depth of the sea reaches 50 m (near the coast is still 0 - 10 m), belonging to shallow water. The surface current condition is quite low, ranging from 0.07 - 0.12 m / s. The quality of seawater around the island is also quite good, the temperature value (SPL) ranges from 31 ° C, pH 6, salinity 34 - 35 ppt and 10 m (10%) water transparency. The condition of coastal and aquatic characteristics of Sirandah Island is very supportive for island tourism, namely beach tourism (recreation) very appropriate (S1) with value 86,96%, coastal tourism category boating, banana boat, and jet ski according to (S2) with value 17.33. Keyword : level of conformity, marine ecotourism, Sirandah Island
CHARACTERISTICS SEDIMENT IN THE ULAKAN TAPAKIS WATER OF PADANG PARIAMAN DISTRICT WEST SUMATERA PROVINCE Fertikasari, Indah; Rifardi, Rifardi; 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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AbtracThe study of the distribution of sedimentary characteristics in Ulakan Tapakis waters aimed at sediment deposition environmental conditions based on sedimentary characteristics. Sediment sampling was conducted at nine sampling points using purposive sampling technique.Analysis of the sediment fraction was carried out using the wet sieveand pipette methods. The results of the study the Ulakan Tapakis waters had 4 types of sediment namely: sand, muddy sand, sandy mud and mud,which is dominated by sandy mud. The sedimentary statistical parameters showed the value of mean diameter (mean size) range from 0,23-5,73ø with the clasification of coarse sand to medium silt. Skewness values range from -0,90-0,42ø with the clasification of  very negative skewed to very positive skewed. The values of sorting ranges from 2,04-2,53ø with the clasification of very poorly sorted. The value of kurtosis range from 0,47-9,31ø with the clasification of very platikurtik to leptokurtik extreme, indicate the waters under the influence of current conditions that tend to be unstable and the number of anthropogenic aktivities. Keyword: Sedimentary Characteristics, Sediment statistics, Ulakan Tapakis 
THE INFLUENCE OF WIND, TEMPERATUR AND RAINFALL ON THE CATCH OF FISHERMEN IN FISHING PORTOF BATAM CITY Sihotang, Nico Darminto; Galib, Musrifin; Elizal, Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACTThe fish catches of fishermen was strongly influenced by wind, temperature and rainfall. This research was conducted in December 2018 – February 2019 in the Barelang Fishing Port Batam City. The purpose of this research are to know the patterns of changes in wind, temperature and rainfall that occur in Batam City and the influenced on fishermen fish catches in Batam City and to determine the good time/season for fishing operations. The research used survey method, primary data obtained using questionnaires and secondary data obtained from Barelang Fishing Port, BMKG Hang Nadim amd Batam City Fisheries Service. The hypothesis was tested using a simple regression test. Wind, temperature and rainfall data were analyzed using Microsoft Excel 2010. The results showed that the relationship between wind speed with fishermen fish catches is opposite each other, temperature with fishermen fish catches is directly proportional and intensity of rainfall with fishermen fish catches is opposite each other. The good season to catch fishing is in the transisition season 2 (October to November) and transition 1 (March to May). Analysis of climate change trends in Batam City shows that the average of wind speed tends to decrease every year, the average of temperature tends to increase every year and intensity of rainfall tends to decrease every year.  Keywords :Catch, Wind Speed, Temperature, Intensity of Rainfall, Climate             Change    
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
Macrozoobenthos Community Structure in Mangrove Forest at Purnama Urban Village, Dumai City Sihotang, Yula Elawati; Nasution, Syafruddin; Elizal, Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
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ABSTRACT The structure of the macrozoobenthos community in the mangrove forest area of Purnama Village, Dumai City can be used as a basis for knowing the environmental conditions of the waters in the mangrove forest of Purnama Village, Dumai City. This research was conducted in the mangrove forest area of Purnama Village, Dumai City in April 2018. The method used was the survey method, sampling was done by purposive sampling. The research location was divided into three stations and each station was divided into three transects, with each transect placed three 1 m2plots. The results showed an abundance of macrozoobenthos ranging from 7.56-10.00 Ind / m2, obtained 3 classes namely Gastropoda, Crustacea, and Bivalva consisting of 12 species namely Cassidula aurisfelis, Cerithidea obtuse, Littorina melanostoma, Nerita lineata, Nerita violacea, Littorina scabra , Chicoreus capucinus, Indothais gradate, Nassarius candens, Uca sp, Polymesoda expansa, Indothais malayensis and the most commonly found are Nerita lineata while the diversity index ranges from 2.79 to 2.98, the uniformity index ranges from 1.09 to 1.33, index dominance ranged from 0.15 to 1.16 and distribution patterns ranged from 2.53 to 3.32. The results of measurement of environmental parameters are still within the optimal limits for the life of marine biota and the dominant type of sediment is muddy. It was concluded that moderate species diversity, balanced uniformity and no dominant species were found while the distribution pattern was grouped. Keywords: Community Structure, Macrozoobenthos, Mangrove, Dumai City
ANALYSIS OF COAST LINE CHANGES USING LANDSAT IMAGERY AT TAPIAN NAULI DISTRICTCENTRAL TAPANULIREGENCYNORTH SUMATERA PROVINCE Amari, Tomi; Galib, Musrifin; Elizal, Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT Beach is a geographical which is be composed of sand and is located in the coastal area. The coastal area is the restrictions between coastal and sea. Beaches can change due to natural and human influences. The research was conducted in July 2018 at Tapian Nauli I, Central Tapanuli Regency, North Sumatera Province.The aim this research is to map and analyze the rate of shoreline change using Landsat Imagery. Imagery data downloaded from USGS site and then to analyze using ER Mapper and Arc Gis application.The results show that there has been a change in the coastline (abrasion and accretion). The current velocity range 0.09 - 0.12 m/s. The lowest of wave energy is 1.568 Nm / m² and the highest is 5.096 Nm/m². The lowest of abrasion is 0.538 m/year and the highest is 3.36 m/year. Keywords: Coastline, Tapian Nauli, Landsat Imagery, Abrasion, Accretion 
RELATIONSHIP CONCENTRATION NITRATE, PHOSPHATE AND SILICATE WITH ABUNDANCE OF PLANKTONIC DIATOM IN THE WATERS OF PANGKALAN SESAI VILLAGE,DUMAI ,RIAU PROVINCE Putri, Zulherija; Nurrachmi, Irvina; Elizal, Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 2 Juli s/d Desember 2019
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ABSTRACT Diatom is the most primary producer in marine waters and is abundant in surface areas that have sufficient light intensity and are rich in nutrients. This research was held on 12-24 May 2018 in the waters of Pangkalan Sesai village, Riau province. The study aims to analyze the concentration of nitrates, phosphate, silicate and analyze the abundance of planktonic diatoms as well as see the relationship of nitrate, phosphate and silicate against diatomic abundance of planktonic. The method used in this research is a survey method that is to perform observations and sampling directly, then proceed with the identification of planktonic diatoms samples in the laboratory. Water quality measurements are done in situ and ex situ consisting of parameters, physical biology, and chemistry. The concentration of nitrate ranged from 0.0367 – 0.0506 mg/l, phosphate concentrations ranged from 0.0840 – 0.1397 mg/l and silicate concentration of 0.0502 – 0.0692 mg/L. Diatom planktonic was found in the waters of Pangkalan Sesai village as many as 9 (nine) genera. Based on the results of multiple linear regression analyses obtained the value of the physical correlation (R) with the value 0.667 indicates that the relationship between nitric concentration, phosphate and silicate in diatoms is moderate. Then the value of R Square (R2) is worth 0.444 meaning the percentage of donations from the variable nitrate, phosphate and silicate against diatoms is 44.4% and the remaining 55.6% is influenced by other factors.Keyword: The abundance, nitrate, phosphate and silicate, Diatom, Pangkalan Sesai
Relation of Accumulated Sediment with Coral Reef Cover in the Lagoi Waters Bintan Regency Kepulauan Riau Province Sidabalok, Westy Yulia; Rifardi, Rifardi; Elizal, Elizal
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 Lagoi Waters Banyan Tree Bintan Region to observe  effect accumulated sediment on coral. Three stations were selected forthe measurement of accumulated sediment was conducted using sediment traps which is apllied in the station of coral observation for 21 days. Point Intercept Transect (PIT) was used for the observation of coral reef. Regression analyses was applied clarify the correlation between accumulated sediment  and coral reef. The result of this study showed that the rate of accumulated sediment  in all observation stations ranged from 1.49 – 2.90 mg/cm2/day. The effect can be categorized as low to medium. The condition of coral reef in Lagoi Waters Banyan Tree Bintan Region is classified in good, indicated by  percentage of coral cover in observation stations ranged between 50-74%. The result of regression analysis showed that the accumulated has negative impact of life coral reef in Lagoi Waters Banyan Tree Bintan Region.Keywords : Accumulated sediment, Coral reef, Lagoi Waters.
THE STUDY OF THE SELECTION OF FISHING GROUND BASED ON SEA SURFACE TEMPERATURE AND KLOROFIL-a IN THE ASAHAN OCEAN WATERS BY USING SATELLITE IMAGES AQUA MODIS Tamba, Marlan; ', Elizal; Ghalib, Musrifin
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 3, No 1 (2016): Wisuda Februari Tahun 2016
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The study was conducted in October 2015 in Asahan waters NorthSumatera. The aim of this research is to know the fishing ground in Asahanwaters based on conditions of sea surface temperature and chlorophyll-aabundance by using Satellite Images Aqua Modis. Methods used in this researchis survey method and a visual analysis Aqua Satellite Images Modis. The resultsof the analysis by the sea surface temperatures in the Asahan waters tending tolow that is in the range highest was in June namely 32,42°C -32,7°C. From theobservation the average concentration chlorophyll-a Asahan waters 2014maximum in January with an average 4,246013 mg/m3, and the lowest in Julyreached 0.913913 mg/m3. The higher sea surface temperatures henceconcentration chlorophyll-a progressively lower. In the restive of fishing groundof Asahan waters performed on highest 30,15°C -30,38°C with the lowest in therange of SST 29,68°C-29,91°C and the highest of klorofil-a 2,70164-3,0763 mg/m3 with the lowest in the range of 1,57761-1,95228 mg /m3.Keywords: Fishing Ground, Sea Surface Temperature, Klorofil-a,Aqua Modis,Asahan
Co-Authors ', Zefendra A. Rizki A.R. Ramadhan Afrizal Tanjung Afrizal Tanjung Amari, Tomi Andre Febriadi Zaryano, Andre Febriadi Andrian, Fikri Anggie Agustian Aras Mulyadi Aras Mulyadi Aras Mulyadi Arbaeyah ' Arif Teguh Satria Arinalhaq, Aminah Armanda Armanda Baruza Arrizqa Bayu Putra U Irawan Bintal Amin Cahyani Fitrah Tanjung Cahyani Fitrah Tanjung Cici Lestari Manurung Cut Intan Zahara D.H. Yanti D.J. Sari Darul Amin Debby Irfandinata Deddy Bahagia Manik Dedek Susanto Dedi Muksin Pane, Dedi Muksin DEDI SETIAWAN Despala Dessy Yoswaty Dewita Buchari Dewita Dewita Dhiva Danaya Athhary Dimas Agung Guntara Edi Handoyo Efriyeldi, Efriyeldi Elfis Suanto fajar sidik Fauzi Febrianto Roby Mukhti Fertikasari, Indah Fiona Aristi Giovano Aldizia Gustasya, Yosy Halida Sisda Harahap Hamidah Dasno Vera Hari Mulyadi, Hari Harif, Ichwanul Hutapea, Yeru Daniel Octryan Ide Rival Dianta Sitepu Ikhsan Setiawan Ilham Ilahi Ilham Ilahi Indah Fertikasari Irvina Nurrachmi Irwan Effendi Ishlahul Fikri Joko Samiaji Joko Samiaji Juliando Saputra Khairil Ihsan Lulu Mayna Nabilla Mahzwan Putra Pratama Manik, Yolanda Marlan Tamba, Marlan Metry, Gita Mifdhol Hafli, Raja Diddin Mubarak Mubarak Mubarak Mubarak Mubarak Mubarak Muhamad Aditya Muhammad Dinul Islami Muhammad Sofyan Musrifin Galib Musrifin Galib Musrifin Ghalib Nabila Afifah Azuga Novhitasari Simbolon Nursyirwani, Nursyirwani Ogesnain Sinaga Pasaribu, Ridwan Saiful Basri Putri, Zulherija R. Rahmita Rahdian Putra Rahmi Relva Raja Yogi Prayoga Ramadhan Ramadhan Ridwan Manda Putra Rifardi ' Rifardi Rifardi Rifardi Rifardi Rifardi Rifardi Rifardi Rifardi Rifardi Rifardi, Rifardi Rio Aprialis Safitra Romanta A. Tamba Romanta Andrianus Tamba Romel Kefriansa Putra Safira Mutia Satria Putra Anggara Sherly Ayunarita Sidabalok, Westy Yulia Sihotang, Nico Darminto Sihotang, Yula Elawati Simamora, Yohanna Beata Sofyan Husein Siregar Sri Dewi Utami Suci Monika Putri Sukendi Sukendi Syafruddin Nasution Syahril Nedi Syucitra Oriza T.B. Ginting Tanjung, Cahyani Fitrah Thamrin ' Thamrin Thamrin Tiara Sri Mulawanti Tomi Suhendra Ulfa Rahmi Wahyu Novra Wanda Wahyudi Wenika Fitria Dona Y Desmerina Yoga Novriadi Yolanda Manik Yoli Yandra Yozi Ahmad Fadhil Yusni Ikhwan Yusni Ikhwan Siregar Zientika Zulkifli ' Zurma, Intan Alsyahkina