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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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THE CORRELATION OF SIZE AND SEDIMENT ORGANIC MATTER WITH MAKROZOOBENTHOS ABUNDANCE IN MEDANG KAMPAI DUMAI CITY Novhitasari Simbolon; 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 research was conducted in March 2019 at MedangKampai Waters of Dumai City. This study aims to determine the relationship between particle size and sediment organic matter with abundance of macrozoobenthos in MedangKampai waters. The method used is survey. Determination of stations using purposive sampling method. Sampling was carried out in the field and then taken to the Marine Chemistry Laboratory for analysis of sediment and organic material fractions. The identification of macrozoobenthos was carried out at the Marine Biology Laboratory. The results of the study of sediment fractions showed different types of sediments, namely sandy mud, gravel sand, and mud. Particle size and density of silt sediments (4.90 - 7.30 Ø). The content of organic ingredients is 3.37% - 19.40%. And the abundance of macrozoobenthos ranges from 1.11 ind / m2 - 3.56 ind / m2 with 16 numbers of species found from the dominating class of gastropods. The relationship of sediment particle size (Mz) to the abundance of macrozoobenthos has a value (r) = 0.0721 a very weak relationship (H0.1 is accepted). The relationship between the total organic matter content of sediments and the abundance of macrozoobenthos has a value (r) = 0.1044 which means it has a very weak relationship (H1.1 is accepted). Keywords: Particle Size, Organic Material, Macrozoobenthos,  
Struktur Komunitas Makrozoobentos di Daerah Padang Lamun Muara Sungai Riau Kota Tanjungpinang Provinsi Kepulauan Riau Ilham Ilahi; Aras Mulyadi; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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This research was conducted in June 2013 at Riau River Estuary inTanjungpinang City Riau Islands Province. This research aimed to find out themacrozoobenthos community structure and its relationship to seagrass vegetation.The method on the research was survey method. The existence of macrozoobenthosin this area showed the dynamic symbiosis among seagrass and marine organisms.The results also showed seagrass ecosystem had the high potential to be managed andused by communities and also increasing the fisheries productivity on coastal area.Species composition of macrozoobenthos in the area consisted of 8 species, i.e.Strombus sp, Cerithidea quadrata, Pina bicolor, Anadara sp, Anadara inflata,Atactodea striata, Asteroidea sp and Diadema sitosum. Two species of seagrassvegetation were found in this area, those were Enhalus acoroides, and Halophilaovalis. T-test analysis showed that the average of macrozoobenthos abundance oneach station differed unsignificantly (p>0,05). The regression analysis showed thatrelationship among seagrass vegetation diversity and macrozoobenthos abundancewas at r=0,35.Keywords: Riau River, Macrozoobenthos, Seagrass, Symbiont
CHARACTERISTICS SEDIMENT IN THE ULAKAN TAPAKIS WATER OF PADANG PARIAMAN DISTRICT WEST SUMATERA PROVINCE Indah Fertikasari; 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 
MAPPING OF MANGROVES CHANGE AREA AND THE DENSITY OF MANGROVE IN ANAK SETATAH VILLAGE SUB-DISTRIC OF RANGSANG BARAT DISTRICT OF KEPULAUAN MERANTI RIAU PROVINCE Halida Sisda Harahap; Elizal Elizal; Efriyeldi Efriyeldi
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 February 2019 in Anak Setatah village, Sub-distric of West Rangsang, District of Kepulauan Meranti, Riau Province and was aimed to find out the change of area and the density of mangrove this time. The research was conducted by survey method. The quantitative method was used on the change of mangrove forest area observation. The result of image data processing showed that mangroves area in Anak Setatah Village had decrease of area in 2006-2011 about 3.77 ha and there was an increase of area in 2011-2016 about 116.88 ha. The density of mangrove in Anak Setatah Village has the tight and medium density type. According to Mangrove Quality Standards, the density are still in Good category.  Key words : Mangrove, Change of Area, Density, Anak Setatah
RELATIONSHIP BETWEEN OIL CONTENT IN SEDIMENT AND MACROZOOBENTOS ABUNDANCE IN SELAT BARUCOASTAL WATERS OF BENGKALIS REGENCY RIAU PROVINCE Mahzwan Putra Pratama; Bintal Amin; Elizal Elizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 5 (2018): Edisi 1 Januari s/d Juni 2018
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ABSTRACT This research was conducted in September 2017to determine the oil content in sediments, the abundance of macrozoobentos in sediments and their possible relationship in the coastal waters of Selat Baru Bengkalis, Riau. Three sampling stations with three replications in each station were surveyed. Sediment samples were taken and placed in labelled plastics bags and transported to laboratory for later analysis at the Faculty of Fisheries and Marine Science. The macrozoobentos samplewas given a few drops of 10% formalin solution and then taken to the laboratory for later identification. The oil content of sediment in Selat Baru coastal waters ranges from 917.87 to 5595.73 ppm, with the highest oil content being found at station 1 (around the harbour) and the lowest was at Station 2 (coastal tourism area). The types of macrozoobentos found in Selat Baru coastal waters consist of two classes namely, gastropods and crustaceans. Species of macrozoobenthos which have relatively high abundance value at each sampling point isCerithidea sp. Based on simple linear regression, the relationship between the oil content in sediment with the abundance of macrozoobentos was categorized as a moderate relationship (y = 16.03-0.001x; R2 = 0.588,r = 0.76) which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment.Keywords: Pollution, Oil, Sediment, Makrozoobentos
LIFE PATTERN OF GASTROPODS ON BREAKWATER AND SANDY BEACH ECOSYSTEM IN WATER CONSERVATION AREA PARIAMAN CITY WEST SUMATRA PROVINCE Romanta A. Tamba; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 1, No 1 (2014): Wisuda Februari Tahun 2014
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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 DEVELOPMENT STRATEGY IN MARINE ECO-TOURISM OF NONGSA BEACH BATAM CITY IN RIAU ISLANDS PROVINCE Tiara Sri Mulawanti; Syafruddin Nasution; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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This study was conducted on May 2016 at Nongsa Beach in Batam City, Riau Islands Province. The purpose of study was to analise the potential of tourism in Nongsa Beach as a marine tourism. The method used in this study is a survey method. The result of the study show that Nongsa Beach has a high potential to serve as a national and international marine ecotourism. This was based on the aspects of chemical physics parameters oceanography, geology and geomorphology, climate coastal ecosystems, historical value, and overview from tour players, and the values of Pengukuran Willingness to Accept (WTA) dan Willlingness to Pay (WTP). The concept of ecotourism can be applied to develop marine tourism in the island based on the analysis of strategy of Strengths – Opportunity (SO), Strategi Weakness - Opportunity (WO), Strategi Strengths – Threats (ST), Strategi Weakness – Threats (WT).Keywords: Nongsa Beach, marine ecotourism, potential and strategies
The Condition of Coral Reefs in the Waters Around the Banyan Tree Bintan Bintan Regency Riau Islands Province Satria Putra Anggara; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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The aim of this research is to know the condition of coral reefs including the live coral cover, the diversity index, the uniformity index, and the dominance index of the waters of Banyan Tree Bintan. This research had been conducted in the waters around Banyan Tree Bintan from September until November 2016. There are three stations with two depth; Angsana House Reef, Rawa Island and Manjin Island. The data of coral reefs were collected by using Underwater Photograph Transect (UPT) method. The result which was analyzed by using CPCe application revealed that the condition of the coral reefs was ranged around 21,88 % to 32,87% which can be classified as poor to moderate category sequentialy. The low number of coral covers was caused by rising sea temperature and coral bleaching. The highest coral cover was located in the Angsana House Reef at a depth of 5 meters in otherwise the lowest one was located in the Rawa island at 2 meters depth. The quality of water such as temperature, salinity, pH, current velocity and the visibility of the research location was good for coral reefs recovery and growth. The diversity index moderate, the uniformity index was low, and the dominance index was ranged from low to moderate level.Keywords: Terumbu Karang, Banyan Tree Bintan, Underwater photograph Transect (UPT), Coral Bleaching.
EFFECT OF TEMPERATURE DIFFERENCE ON HATCHING EGGS OF GREEN TURTLE (Chelonia mydas) Ikhsan Setiawan; Efriyeldi '; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 2 (2017): Wisuda Oktober Tahun 2017
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The purpose of this research was to know the condition of nesting beaches favored by green turtles (Chelonia mydas) and the effect of incubation temperature (heating source from incandescent) towards the incubation and hatching rate success. This research was conducted in October to December 2016 at the Turtle Breeding Facility at Jemur Island. This research used survey and experiment method. The research showed that the safe nesting ground with some vegetation on location I and the least predator at the location II, the wide beach area, and sloping beach with fine sand which making it easier for green turtles in digging the nest. These conditions were the reasons why green turtles choose Jemur Island as their nesting ground. Incubation temperatures effects the hatching rate success and hatching time of sea turtle’s eggs. The treatment that has the highest hatching rate is a 25 Watt light with average temperatures of 29.7oC which is 83.33%. Treatment using a 25 Watt light is the best treatment, with a highest numbers of hatching rate and has the fastest hatching time. Keywords: Hatching Egg turtle, Chelonia mydas, Jemur Island
Study Macrozoobenthos at Batu Asahan Coastal Zone of IV Jurai District of Pesisir Selatan Regency The West Sumatera Province Giovano Aldizia; Afrizal Tanjung; Elizal '
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 4, No 1 (2017): Wisuda Februari Tahun 2017
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This study was conducted in November 2016 in the area at Batu Asahan coastal zone of IV Jurai district of Pesisir Selatan regency the West Sumatra Province, aim at determine the community structure of macrozoobenthos. Sampling using transect method squares and samples were analyzed at the Marine Biological Laboratory of the Faculty of Fisheries and Marine Sciences, then presented and discussed descriptively with various references. Based on the research of macrozoobenthos abundance is highest was at station 1 92.00 ind / m², and was lowest abundance at the station 3 is 9.20 ind / m². Found four classes of macrozoobenthos are gastropods, Malacostraca, Maxillopoda, and Ophiuroidae, where gastropods eight species, one species Malacostraca, one species Maxillopoda and one species Ophiuroidae. Species diversity index values ranging between 1.685 - 2.057, the dominance index ranges from 0.30676 - 0.45963, uniformity index ranging between 0.78784 - 0.99344. Batu Asahan waters condition based on water quality parameters measured was able to support the life in particular macrozoobenthos and marine organisms in general.Keywords: Macrozoobenthos, Abundance, Batu Asahan Beach, West Sumatera
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