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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 Materials Science & Nanotechnology Physics Public Health Social Sciences Other

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SEDIMENT CHARACTERISTICS AND DISTRIBUTION OF CRAB Scopimera globosa ON THE SELAT BARU BEACH BENGKALIS DISTRICT Rahdian Putra; Elizal '; Thamrin '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was conducted in December 2016 at the Selat Baru Beach of Bengkalis District, Riau Province. The aim of the research is to find out and to analyze, the characteristics of sediment and the distribution of crab Scopimera globosa, as the influence of sediment grain size on the abundance of crabs. This method used was survey method and the sampling location determined by purposive sampling. The location were divided into three stations and at each station there were three sub-stations spread in the intertidal zone and split three sub-zones to : upper, middle and lower. The type of sediment on this beach consisted of sand fraction and dominated by fine sand, with the distribution of the fraction from Well sorted, Moderately well sorted, Poorly sorted and Very poorly sorted. The distribution of crabs Scopimera globosa was a clumped pattern on each station with the highest abundance value in second station located and the middle sub-zone (the most productive zone for growth of the crab Scopimera globosa) and the sediment mean size to contributes 1.2% in control to distribution of the crab Scopimera globosa.Key words : Sediment Characteristics, Distribution Scopimera globosa, sand fraction, Sub-Zone Middle, Contribution of 1.2%.
MAPPING OF CHLOROPHYLL-A DISTRIBUTION USING LANDSAT 8 IMAGERY IN DUMAI WATERS WEST OF DUMAI CITY RIAU PROVINCE Debby Irfandinata; Musrifin Galib; Elizal Elizal
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            Chlorophyll-a was the green pigment found in phytoplankton. Chlorophyll-a can be used as an fertility indicator and primary productivity of the sea. Chlorophyll absorbs red and blue colors, and reflects green color. This research was conducted on 5-9 May 2018 with the research area of East Westwaters of Dumai in Riau Province, this research goal is to determine: the distribution of chlorophyll-a in the waters of West Dumai. The survey method was applied in this research where the West waters of Dumai is the research area, sampling location were set up purposively which divided into 5 stations. Each station has one sampling point with three repetitions. The results of this research found that the distribution of chlorophyll-a in West Dumai  was not evenly distributed. The highest chlorophyll-a concentration was in the 2018 around settlements because of the nutrient runoff from land. The lowest concentration is found in 2016 because of the dry season that exist throughout 2016.Key words: Chlorophyll-a, West Waters of Dumai, Phytoplankton.
Life pattern of gastropods on breakwater and sandy beach ecosystem in water conservation area pariaman city west sumatra province Romanta Andrianus Tamba; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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The research was carried out on the breakwater rocks in Water Conservation AreaPariaman West Sumatra Province in May 2013. The goal in conducting this study is tofind out how to survive gastropods in breakwater and sandy beach ecosystems areconstantly subjected to pressure waves. The method used was a survey method thatdirectly observe the behavior and movement of gastropods.There are 5 types of gastropods which have distinctive way of life to survive inthe face of pressure waves. Gastropods movement in the face of pressure waves in thesubmerged breakwater when high tide and exposed to the atmosphere when the low tidesas well as having an active movement, slow and settled. Life pattern gastropods in thesandy habitat gastropods will be attached to rock fragments and other fossil biota. Therewas slow movement that occurs when the wave came. Human impact on the gastropodswill always avoided by attaching themselves to the substrate tightly, closing their shellimmediately and move quickly. Gastropods movement in rock breakwater depends on thecause as something approaching movement (humans and other organisms), exposure tofree air (drought) and the most important is the availability of food.Keywords: Gastropods, survive, breakwaters, pressure waves, West Sumatera
THE CORAL REEF CONDITION IN BERALAS PASIR ISLAND WATERS OF GUNUNG KIJANG REGENCY BINTAN KEPULAUAN RIAU PROVINCE Fajar Sidik; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study has been done on the reefs in the coastal waters of Beralas PasirIsland. It was carried out on May 2013 by deploying LIT method. The aim of thisstudy is to find out the condition of the reefs based on the percentage of HardLiving Coral Cover (HLCC) in the area. For that instance, three stations asrepresentatives were chosen purposively. As a result, the type of reefs in the areaunder study was fringing reef with different condition on each station. The station1 and 2 showed good condition with more than 50 % of HLCC coverage. Yet, itwas in moderate condition for the third station; it was about 29.10 %. There wasno dominant life’s form that found in term of both dominancy index and diversity.Keywords : Beralas Pasir Island, Coral Reef, Condition
ABUNDANCE AND DISTRIBUTION PATTERN GASTROPODS IN INTERTIDAL ZONE OF TELUK KASAI BEACH PESISIR SELATAN DISTRICT SOUTH SUMATRA PROVINCE Ide Rival Dianta Sitepu; Afrizal Tanjung; Elizal Elizal
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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AbstractThis study aims to determine the abundance, relative abundance and distribution patterns of gastropods in the intertidal zone of the Teluk Kasai beach. This research was conducted in June 2019 in the intertidal zone of the Teluk Kasai beachPesisir Selatan District, West Sumatra Province.The method used in this research is survey method of determining the location of the station using purposive sampling method. Sampling was conducted at random (Random Sampling) using 1x1 m² sized plot. The results were obtained4 species of gastropods from 3 families. Abundance of gastropods are not significantly different. The highest Relative abundance species at all stations which Littoraria scabra. Distribution pattern is clumped. The average temperature values in the range30,6 - 32ºC, salinity in the range of 32 - 33.6 ‰, the degree of acidity (pH) would exist in the range of  7.04 - 7.62, and the total organic material ranges from 3.33 - 4.20%. Type of substrate is Sand Gravely.Keywords: Gastropods, Abundance, Distribution Patterns, Teluk Kasai beach
KAPASITAS ASIMILASI TOTAL SUSPENDED SOLID (TSS) DI MUARA SUNGAI NERBIT BESAR KELURAHAN LUBUK GAUNG KECAMATAN SUNGAI SEMBILAN KOTA DUMAI PROVINSI RIAU Romel Kefriansa Putra; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study aimed to determine the ability of estuary to accommodate the total suspended solids that was derived from household activities, or other events and factors at Nerbit Besar River of Lubuk Gaung Village of Sungai Sembilan Sub-District of Dumai City Riau Province. The results showed that the volume of the estuary during spring tide (Vh) was bigger than the volume of the estuary at low ebb tide (VI). The pollution load into the estuary of Nerbit River at ebb tide was bigger than when spring tide. Estuary volume in high at tide (Vh) was bigger than the volume of the estuary at during neap tide (VI). The pollution load into the estuary of Nerbit River during ebb tide was bigger than neap tide. Conditions assimilation capacity at the spring tide and during neap condition has not been exceeded (under capacity) because the value of the load capacity (KB) (KBS, KBP, and KBBM) bigger (BP) pollutant load.Kata Kunci: Assimilation Capacity, Total Suspended Solid (TSS), Nerbit Besar River
The Association of Gastropods and Seagrass in Coastal Waters of Beruk Island of North Rupat of Riau Province Darul Amin; Zulkifli '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 2, No 1 (2015): Wisuda Februari Tahun 2015
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study was conducted in July 2013 in the coastal waters of Beruk Island, Riau. This study was aimed to describe the species composition, distribution, density of seagrass and gastropods, its was also directed to know the distribution of gastropods based on the distribution of seagrass. The survey methods was used in this study. The results showed that there were 279 individuals of gastropod. Those consisted of six species, i.e. Strombus urceus, Ellobium sp, Nerita costata, Conus nobilis, Littorina sp, and Gibbula ardens. There were two seagrass species used as habitat by gastropod, i.e. Enhalus acoroides and Halophila ovalis. Distribution patterns of gastropods in Beruk Island were generally uniform, and varied at each station. The analysis showed that C. nobilis found at all stations, this indicated that these waters were suitable for the survival of C. nobilis, as well as the seagrass species of E. acoroides was also found in all stations.Keywords: Asosiasi, Gastropoda, Padang Lamun, Pulau Beruk
STUDY ON THE SUSPENDED SOLIDS IN THE WEST COASTAL WATERS OF BENGKALIS Arif Teguh Satria; Rifardi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This study was carried out in May 2012. It aimed to find out on the stageextent of suspended solid in the west coastal waters of Bengkalis, in Riauprovince. This study used survey method and van Dorn sampler to collect thewater samples at 7 stations of the study area. The National Standard Method ofIndonesia for suspended solid analysis was used to deal with the main goal of thestudy. The result showed that the average stage of suspended solid was differentfor all stations. The considerable one was found in the station 4 comparing to theother stations. It caused station 4 was located at the confluence of the tidal currentpatterns come from the Malacca Strait low tide that come with the current of theriver around the west coastal water of Bengkalis.Key word : Suspended Solids, Water Of Bengkalis
INFLUENCE OF DIFFERENT EXTRAJOSS CONCENTRATIONS OF GRANTING ON MEDIA CULTURE AGAINST THE RATE OF POPULATION GROWTH OF ROTIFER (B. plicatilis) Raja Yogi Prayoga; Syafruddin Nasution; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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This research was conducted in October to December 2016 at fish seed center Pengujan, Bintan, Riau Island. The purpose of research was to determine the best concentration of Extrajoss for improving the rate of population growth of B. plicatilis in media culture. Complete Random Design (CRD) was applied as a method at this study with 4 taraf treatments that is P0 media consists of 300 mg chicken manure, 7.5 mg TSP, 6 mg Urea, 0.45 g yeast Bread/3 liters of water (control), then for further media added P1 (0.30 g Extrajoss), P2 (0.40 g Extrajoss), and P3 (0.50 g Extrajoss) with 3 replicates and observation 2 times day. The results is there’s a population growth rate differences occurring B. plicatilis after being given by Extrajoss. The highest population density is obtained at the 6th day of observation in the media of P2 11.36 ind/ml, and the lowest population contained on media P3 Of 1.00 ind/ml, while the highest average growth rate was obtained at the treatment the P2 of 2.731 ind/ml and the lowest obtained on treatment of P3 of 1.257 ind/ml.Keywords: Brachionus plicatilis, Extrajoss, BBI Pengujan
ANALYSIS OF CHANGES IN COAST LINE USING LANDSAT IMAGERY AT NORTH SIPORA DISTRICT OF MENTAWAI REGENCY, WEST SUMATERA PROVINCE Ulfa Rahmi; Musrifin Galib; Elizal Elizal
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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AbstrackChanges in the coastline are, back and forth events coastline than before that causad by natural and human factors. This research was conducted in August 2018 in the coastal area of North Siporadistrict, West Sumatera Province. This study aims to determine changes in the coastline in North Sipora District use Landsat Imagery, year 2000. 2007, 2013, and 2018. Image data was downloaded from the USGS site was then analyzed using the ER Mapper 7.0 application and Arc Gis. The results of  image data processing show that coastline changes that occurred during the 18 years experienced changes an accretion and abrassions.Based on image data processing, the area with high accretion is found in 2000-2007 with an area of 571 ha and a high area of abrassion in 2007-2013 with an area of 271 ha. On measurements in the field the abrassion speeds obtained ranged from 1.4-1.76 m / year. The highest abrassion speed is found on Mappadegat Beach.Keywords: Coastline, North Sipora, Landsat Imagery, Abrassion, Accretion
Co-Authors ', Zefendra Aditya, M Afrizal Tanjung Al-Izhar, Muhammad Amari, Tomi Andre Febriadi Zaryano, Andre Febriadi Andrian, Fikri Andriani, Fikri Anggie Agustian Apriani, Cici Aras Mulyadi Arbaeyah ' Ardiana, Eka Arif Teguh Satria Arinalhaq, Aminah Aristi, Fiona Armanda Armanda Armanda, Armanda Armani, Shanya Puthi Athhary, Dhiva Danaya Azmiada, Zela Azrihaironi, Azrihaironi Baruza Arrizqa Bayu Putra U Irawan Bintal Amin Cahyani Fitrah Tanjung Cici Lestari Manurung Cut Intan Zahara Darul Amin Debby Irfandinata Deddy Bahagia Manik Dedek Susanto Dedi . Dedi Muksin Pane, Dedi Muksin Desmarina, Y. Despela, Despela Dessy Yoswaty Dewita Dewita Dimas Agung Guntara Efriyeldi, Efriyeldi Elfis Suanto Fadhil, Yozi Ahmad fajar sidik Febrianto Roby Mukhti Fertikasari, Indah Fikri, Ishlahul Gaol, Amelia Risnauli br. Lumban Ginting, T.B. Giovano Aldizia Gusmanti, Afni Gustasya, Yosy Halida Sisda Harahap Hamidah Dasno Vera Handoyo, Edi Hari Mulyadi, Hari Harif, Ichwanul Hutabarat, Mona Uli Hutapea, Yeru Daniel Octryan Ibad, Rizky Nur Ide Rival Dianta Sitepu Ikhsan Setiawan Ilham Ilahi Indah Fertikasari Irfandi, Muhammad Adri Irvina Nurachmi Irwan Effendi Irwan Irwan Joko Samiaji Juliamanda, Ghina Juliando Saputra Khairil Ihsan Khoiriyah, Latifatul Lulu Mayna Nabilla Mahzwan Putra Pratama Manik, Everson Manik, Yolanda Marlan Tamba, Marlan Masyurah, Dzaitul Metry, Gita Mifdhol Hafli, Raja Diddin Moulidia, Candri Mubarak Mubarak Mubarak Mubarak Mubarak Mubarak Muhammad Sofyan Musrifin Galib Musrifin Ghalib Mutia, Safira Nababan, Bastian Vepry Odynata Nabila Afifah Azuga Nabilla, Lulu Nabilla, Lulu Mayna Ningrum, Astrid Kusuma Novhitasari Simbolon Novriadi, Yoga Nuriska, Alda Nuro, Syazliana Nursyirwani, Nursyirwani Ogesnain Sinaga Oriza, Syucitra Pambudi, Bagas Ariya Panjaitan, Sutrisno Pasaribu, Ridwan Saiful Basri Putri, Zulherija Rahdian Putra Rahmanda, Melysa Rahmi Relva Rahmita, R. Raja Yogi Prayoga Ramadhan Ramadhan Ramadhan Ramadhan Ramadhan, A.R Ramadhan, A.R. Ramadhan, Fauzi Raphita, Suci Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rio Aprialis Safitra Rizki, A. Romanta A. Tamba Romanta Andrianus Tamba Romauli, Junita Romel Kefriansa Putra Sanora, Fifi Saragih, Desra Agus Surya Sari, D.J. Satria Putra Anggara Seven, Diko Alafchan Sherly Ayunarita Sidabalok, Westy Yulia Sihotang, Nico Darminto Sihotang, Yula Elawati Simamora, Yohanna Beata Sinaga, Ade Ferdinus Sinaga, Ogesnain Situmorang, Ally Wibowo Sofyan H. Siregar Sofyan Husein Siregar Sri Dewi Utami Suci Monika Putri Sukendi Sukendi Syafruddin Nasution Syahril Nedi Syahwandi, Muhammad Tanjung, Cahyani Fitrah Tanjung, Cahyani Fitrah Thamrin ' Thamrin Thamrin Thamrin Thamrin Tiara Sri Mulawanti Tomi Suhendra Ulfa Rahmi Wahyu Novra Wanda Wahyudi Wahyudi Wendy, Lovvia Wenika Fitria Dona Yandra, Yoli Yanti, D.H. Yoga Novriadi Yozi Ahmad Fadhil Yusni Ikhwan Zani, Rahma Zientika, Zientika Zulkifli ' Zurma, Intan Alsyahkina