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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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Struktur Populasi Gastropoda Terebralia palustris pada Ekosistem Mangrove Teluk Mandeh Kabupaten Pesisir Selatan Fadhil, Yozi Ahmad; Nasution, Syafruddin; Elizal, Elizal
Jurnal Ilmu Perairan (Aquatic Science) Vol. 9 No. 2 (2021): Juli
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Penelitian ini dilaksanakan pada bulan September 2020 di Ekosistem Mangrove Teluk Mandeh Kabupaten Pesisir Selatan yang bertujuan untuk mengetahui kepadatan, pola sebaran dan ukuran sebaran Terebralia palustris. Metode yang digunakan dalam penelitian ini adalah metode survei. Ada lima stasiun yang dipilih di ekosistem mangrove Mandeh. Hasil penelitian menunjukkan bahwa densitas dari 4,47 menjadi 6,8 ind/m2. Perbedaan densitas Terebralia palustris antar stasiun dianalisis menggunakan One way ANOVA. Hasil uji ANOVA diperoleh nilai signifikansi 0,036 (p value < 0,05) yang menggambarkan bahwa terdapat perbedaan densitas yang nyata dan nyata antar stasiun. Indeks pola sebarannya adalah Id = 1 yang artinya pola sebarannya acak.
POPULATION STRUCTURE OF THE Meretrix meretrix IN THE INTERTIDAL ZONE OF SRI TANJUNG VILLAGE RUPAT SUB-DISTRICT BENGKALIS DISTRICT Khoiriyah, Latifatul; Tanjung, Afrizal; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.183-191

Abstract

This study aims to determine the population structure of Meretrix meretrix in the intertidal zone in Sri Tanjung Village, including abundance, distribution patterns, and size distribution. This research was conducted in February 2024 in Sri Tanjung Village, Rupat District, Bengkalis Regency. The research method used was the survey method. M. meretrix is one of the biota that lives in tidal areas where the subzone that experiences tides is divided into 3 (three) subzones (upper, middle, and lower). The research site is divided into two research stations. Each station is divided into 3 (three) transects, each consisting of 3 (three) plots with a size of 1 x 1 m². Environmental parameters include temperature, salinity, pH, substrate type, and organic matter. The results showed that the highest abundance was found in the Lower subzone at station I, with an average abundance of 8.66 ind/m2, and at station II, with an average abundance of 4.33 ind/m2. In comparison, the lowest abundance is found in the upper subzone at station I with an average value of 3 ind/m2, and the lowest abundance at station II with an average of 1 ind/m2. The size distribution of M. meretrix at station 1 obtained seven classes, with the highest number of individuals in the 3rd class (2.33 - 2.92 cm), while at station 2, there were six classes where the highest number of individuals was in the 3rd class (1.47 - 1.81 cm). The distribution pattern of M. meretrix found is random and uniform. The analysis results of M. meretrix abundance between stations and M. meretrix abundance between intertidal subzones differed significantly.
THE RELATIONSHIP BETWEEN NITRATE AND PHOSPHATE CONTENT AND DIATOM ABUNDANCE IN THE WATERS OF PANDAN ISLAND, WEST SUMATRA Moulidia, Candri; Nedi, Syahril; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.226-231

Abstract

This research was conducted in the waters of Pandan Island, West Sumatra, to determine the content of nitrates, phosphates, and diatom abundance and the relationship between nitrate and phosphate concentrations and diatom abundance. The method used is the survey method. The sampling station is determined by purposive sampling based on cardinality. Define the relationship between nitrate and phosphate content content and diatom abundance using simple linear regression. The results showed that there were eight species of diatoms with the class Bacillariophyceae, including Isthmia sp, Amphora sp, Closterium sp, Nitzschia sp, Hemiaulus sp, Asterionella formosa, Leptocylindrus sp. The highest diatom abundance was at station IV, with an average abundance value of 14.092,09 ind/L, and the lowest abundance was at station I, with an average of 5.317,77 ind/L. The relationship between nitrate concentration and diatom productivity was obtained with the value of y = 31.184x-15.082 and the correlation coefficient (r) = 0.711. Meanwhile, the phosphate concentration on diatom productivity was obtained with a value of y = 51.543x-32.477 and a relational (r) coefficient value = 0.738. There is a strong relationship between nitrate and phosphate content and diatom abundance in the waters of Pandan Island, West Sumatra
CORAL REEF DISTRIBUTION MAPPING CASE STUDY OF SETAN ISLAND WATERS, WEST SUMATRA Pambudi, Bagas Ariya; Thamrin, Thamrin; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.318-328

Abstract

The research was conducted in May 2023 in Setan Island, West Sumatra. The study aimed to map the distribution of coral reefs, test the accuracy of the resulting map, and determine the condition of coral reef cover on Setan Island. The methods used are remote sensing methods using Sentinel-2 satellite imagery and field survey methods to validate the distribution of coral reefs resulting from image data processing (Groundcheck) and to observe the condition of coral reefs using the Underwater Photo Transect (UPT) method. Determination of sampling locations to ground check the distribution of coral reefs using a Stratified random sampling method while determining sampling locations for observations of coral reef cover using a purposive sampling method. The study results obtained a coral reef distribution map with a reef distribution area of 13.18 ha or 47.55% of the total shallow water area. The accuracy test found an accuracy value of 80% with a kappa coefficient 0.7, where the category is good and the level of trust is moderate. The condition of coral reef cover based on live corals in the waters of Setan Island is in the Fair and Poor categories. Percentages range from 0.33% to 31.36%. The dominating lifeform types are coral massive and coral submassive.
Peran Mahasiswa Kuliah Kerja Nyata (KKN) Universitas Riau pada Bidang Pendidikan di Desa Muntai Barat Elizal, Elizal; Sinaga, Ade Ferdinus; Saragih, Desra Agus Surya; Juliamanda, Ghina; Hutabarat, Mona Uli; Ibad, Rizky Nur; Panjaitan, Sutrisno; Manik, Everson; Nuro, Syazliana; Ningrum, Astrid Kusuma
Journal of Rural and Urban Community Empowerment Vol. 5 No. 2 (2024): April
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Desa Muntai Barat terletak di pesisir pantai Selat Malaka, berjarak 45 km dari Ibu Kota Kabupaten Bengkalis dan memiliki iklim tropis. Kondisi sosial masyarakat tercermin dalam keaktifan komunitas lokal dalam kegiatan gotong-royong dan kegiatan keagamaan. Penelitian ini mengeksplorasi dampak peran mahasiswa Universitas Riau yang mengikuti Program Pengabdian kepada Masyarakat (KKN) di bidang pendidikan Desa Muntai Barat. Lokasi desa yang terpencil menimbulkan tantangan terhadap kualitas pendidikan, termasuk terbatasnya sumber daya, fasilitas yang tidak memadai, dan kurangnya guru yang berkualitas. Metode yang digunakan dalam penelitian ini adalah observasi dengan cara mengumpulkan data dan mencari informasi dengan cara observasi langsung ke sekolah-sekolah di Desa Muntai Barat. Dari kegiatan tersebut mencapai kemajuan positif dalam meningkatkan keterampilan siswa, mengatasi masalah pendidikan, dan menyediakan bimbingan belajar gratis. Keterlibatan orang tua dalam pendidikan anak masih menjadi kebutuhan yang mendesak. Melalui upaya kolaboratif dan pendekatan yang disesuaikan, program pengabdian masyarakat ini bertujuan untuk memberikan dampak positif pada lanskap pendidikan Desa Muntai Barat.
Potensi Sumberdaya Pesisir dan Membangun Jiwa Masyarakat yang Peka (Produktif, Edukatif, Kooperatif, Adaptif) di Desa Bantan Sari Elizal, Elizal; Syahwandi, Muhammad; Azrihaironi, Azrihaironi; Rahmanda, Melysa; Ardiana, Eka; Wendy, Lovvia; Gaol, Amelia Risnauli br. Lumban; Raphita, Suci; Masyurah, Dzaitul; Nuriska, Alda
Journal of Rural and Urban Community Empowerment Vol. 5 No. 2 (2024): April
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Desa Bantan Sari mempunyai potensi di bidang perairan. Dimana kebanyakan masyarakat desa Bantan Sari mempunyai mata pencaharian nelayan dan berkebun. Hasil dari sektor perairan yang paling banyak adalah ikan-ikan yang didapat lalu dijual belikan. Hasil perikanan ini menjadi sumber pangan bagi masyarakat Bantan Sari sebagai pemenuhan gizi dari lauk-pauk. Adapun tujuan dari kegiatan ini adalah menambah pengetahuan masyarakat tentang potensi sumberdaya pesisir dan membangun jiwa masyarakat yang PEKA, meningkatkan hubungan antara mahasiswa dan masyarakat melalui keterlibatan langsung dalam masalah pengelolaan sumberdaya pesisir yang dihadapi masyarakat dan memberikan sumbangan pemikiran berdasarkan ilmu pengetahuan dalam masalah pengembangan sumberdaya pesisir bahwasannya pengolahan pesisir tidak hanya berupa ikan yang bisa diambil, tetapi salah satu tumbuhan bakau juga bisa dimanfaatkan untuk UMKM yaitu buah kedabu. Selain itu, membangun jiwa masyarakat yang pekerja keras, berpendidikan, saling membantu dan adaptif. Sedangkan manfaat dari kegiatan ini adalah dapat menambah pengetahuan masyarakat tentang pengolahan buah kedabu yang akan menjadi sirup. Masyarakat yang menjadi sasaran dalam pengabdian yang kami lakukan adalah Warga Setempat, kelompok PKK, Kepala Desa, Pelajar, Guru dan anak-anak. Hal ini dikarenakan kami membuat program yang difokuskan kepada bidang pesisir untuk membangun UMKM desa serta bidang sosial.
Marine Eco-Climatological Conditions Captured in the West Waters of North Sumatra Nababan, Bastian Vepry Odynata; Samiaji, Joko; Elizal, Elizal
Journal of Coastal and Ocean Sciences Vol. 5 No. 2 (2024): May
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.5.2.77-80

Abstract

Fishery resources in Indonesia, especially in the waters of the Western part of North Sumatra, are closely related to the oceanographic dynamics. Knowledge is needed about the conditions of Marine Eco-Climatology in fishing areas rich in fishery resources. This research was conducted in January-April 2021 at the Sibolga Archipelago Fisheries Port, Sibolga Fisheries and Marine Resources Supervisory Post, and College of Fisheries and Marine Science in Pandan Central Tapanuli. The research method was a survey method with a simple regression statistical test. Based on the results of this study, it was slowed that the air temperature in Sibolga City from 2010-2019 ranged between 23-28⁰C and was categorized as normal. The rainfall in Sibolga City in 2010-2019 ranged from 100-600 mm per month, and the wind speed value was 6-12 knots. The effect of these parameters on the catch showed a weak status. It was known that the best time to carry out the fishing is at average temperatures of 24-27⁰C, rainfall less than 3000 m3 /day, and wind speeds of 6-8 knots.
The Effect of Rainfall and Wind on Fishermen's Fish Catches in Bungsus Harbor, West Sumatra Apriani, Cici; Elizal, Elizal; Tanjung, Afrizal
Journal of Coastal and Ocean Sciences Vol. 5 No. 1 (2024): January
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jocos.5.1.34-38

Abstract

The purpose of this study was to determine the effect of rainfall and wind on fish catches for fishermen at Bungus Ocean Port, West Sumatra. Rainfall and wind data were obtained from BMKG Teluk Bayur, Padang, while fish catch data were obtained from PPS Bungus staff, West Sumatra. The methods used in this research activity are the survey method and quantitative analysis. The results of this study showed that rainfall in the study area ranged from 0.01-15.4 mm, the average wind speed ranging from 1.0-1.6 m/s for the catch ranging from 334.983-560.145 kg. The results of the analysis between rainfall and wind on fish catches showed the correlation is not too intense because, based on the results of interviews, fishermen make voyage trips or fishing trips where fishing trips are carried out for more than one day, sometimes even more than one month, so additional data is needed for future research in the form of fishing trip data and data of ships departing per trip
Analysis of Physical Hydro-Oceanographic Factors for Abrasion at Pasir Jambak Beach, Padang City, West Sumatra Province Athhary, Dhiva Danaya; Rifardi, Rifardi; Elizal, Elizal
Journal of Coastal and Ocean Sciences Vol. 4 No. 3 (2023): September
Publisher : Department of Marine Science, Faculty of Fisheries and Marine Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Abrasion is a common problem in coastal areas. This is due to natural factors that influence the phenomenon of abrasion in a coastal area, including the hydro-oceanographic processes that take place in the sea. Pasir Jambak Beach is one of the beaches in Padang City that is experiencing worrying abrasion. Therefore, it is necessary to research the analysis of physical hydro-oceanographic factors for beach abrasion. This survey was conducted in February - April 2023 at Pasir Jambak Beach. This study aimed to determine the degree of abrasion and its relationship to the hydro-oceanographic physics of the beach. The method used is survey and purposive sampling. The data obtained were tabulated and descriptively quantitatively analyzed by multiple linear regression. The results showed that the beach experienced a dominant abrasion process in the period 1995-2023 compared to accretion with an abrasion rate of 77.94%. The highest average wear rate occurred in 2019-2023 of 3.86 m/year and the lowest in 2003-2007 of 1.9 m/year. Physical hydro-oceanographic factors at Pasir Jambak Beach have a significant influence on the abrasion phenomenon that occurs.
Peningkatan Pengetahuan dan Kesadaran Pelajar terhadap Ekosistem Bakau di Bandar Bakau Kota Dumai, Provinsi Riau Elizal, Elizal; Effendi, Irwan; Nedi, Syahril; Tanjung, Afrizal
Journal of Rural and Urban Community Empowerment Vol. 5 No. 1 (2023): Oktober
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Kegiatan pengabdian masyarakat ini bertujuan untuk meningkatkan pengetahuan dan appresiasi pelajar terhadap fungsi/peranan ekosistem bakau terhadap lingkungan, demikian juga tentang pentingnya upaya pengelolaan demi keberlanjutan pemanfaatannya. Pelaksanaan kegiatan menggunakan pendekatan dialogis yang dipandu oleh para instruktur. Kemudian mereka diajak instruktur berkeliling sambil menunjukkan salah satu jenis bibit bakau yang ad di kawasan tersebut. Kegiatan ini berjalan dengan baik, sesuai dengan yang diharapkan.
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 &#039; 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 &#039; 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 &#039; Zurma, Intan Alsyahkina