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Afrizal Tanjung
Universitas Riau
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Macrozoobenthos as a Bioindicator for Water Quality on the Coast of Padang City, West Sumatra Asma Husna Putri; Afrizal Tanjung; Efriyeldi Efriyeldi
Jurnal Natur Indonesia Vol. 22 No. 2 (2024): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.22.2.129-135

Abstract

The research was carried out in January 2024 at the coastal waters of Padang City, West Sumatera Province. This research aims to determine the structure of the macrozoobenthos community as a bioindicator of water quality on the beaches of Padang City. Purposive sampling was used to get the sample, and then data was analyzed using FBI methods. (Family Biotic Index). The research results using FBI calculations show that Station 1 is in a good category with a score of 4.73, Station 2 is in the good category with a score of 4.71, and Station 3 is in the relatively poor category with a score of 6. Thus, the water quality based on macrozoobenthos as bioindicators of the coastal waters of Padang City, with an FBI value, was found to have an average of 5.14, which falls into the moderate category.
Abundance and Distribution Patterns of Gastropods in the Intertidal Bay of Kambang Lengayang Sub-District, Southern Coastal District, West Sumatera Ichwanul Harif; Afrizal Tanjung; Elizal Elizal
Jurnal Natur Indonesia Vol. 19 No. 2 (2021): October
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.19.2.37-42

Abstract

This study aims to determine the abundance and distribution pattern of gastropods in the intertidal bay, Kambang Lengayang District, Pesisir Selatan Regency, West Sumatra. The benefits of this research are expected to be a reference or information for further research in Kambang Bay which in the end is expected to minimize the adverse effects of gastropod hunting. The research method used in this study is a survey method, namely direct observation and sampling which is divided into 3 stations where the sampling station 1 is taking in the coastal waters of the bay in an area where there is no community activity, station 2 is taking in the waters of the bay in the fishing trawl area. station 3 taking in the coastal waters of Kambang in the reclamation area. Based on the analysis of organic sedimentary material in the study area, the average value was obtained at station 1 (3.55%), station 2 (4.20%) and station 3 (3.33%). Based on the analysis, the sediment fraction that dominates each station is sand. The gastropods found at the study site were Clypeomorus bifasciata, Littoraria scabra and Cerithulata cingulata. The abundance of gastropods in the coastal waters of Kambang ranged from 2.33 to 5.00 Ind/m2. The results of the ANOVA test showed that the abundance of gastropods in the bay waters showed 0.214 beaches, indicating that the difference in abundance between stations was not significant. The gastropod pattern found at the study site is generally in groups
The Indication of Gastropods Extinctions at Intertidal Zone of the Teluk Nipah Waters, the Pesisir Selatan Regency the Province of the West Sumatera Afrizal Tanjung
Jurnal Natur Indonesia Vol. 21 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jnat.21.1.69-74

Abstract

Intensive observation of gastropods, every March from the year 2008 to the year 2012, was carried out to document some indicators of gastropod extinction. The purposive sampling technic was used in this work. The physicochemical parameters of its habitat were also monitored during every sampling done. It was found that the intertidal substrate consist of sand, while the habitat parameters were more than 5,6 mg/L dissolved oxygen, pH around 7,0-7,2, salinity 30,2-32,2 ppt, temperature 28,6-29,60C, the visibility 100%. The number of species, the number of found gastropods, the abundance, and the maximum shell size of found gastropods showed decreasing from year to year, while routine collecting by the visitor and the marine organism shell collector, and the disturbance by the fisherman activities occurred. This indication showed a tendency for gastropods extinction.
Distribusi Kelimpahan Gastropoda di Zona Intertidal Kecamatan Bandar Laksamana Kabupaten Bengkalis, Riau Hayen, Nabilla Syima Putri Nur; Rifardi, Rifardi; Tanjung, Afrizal
Ilmu Perairan (Aquatic Science) Vol. 13 No. 1 (2025): Maret
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jipas.13.1.115-123

Abstract

Penelitian ini bertujuan untuk mengetahui distribusi kelimpahan serta hubungan bahan organik sedimen terhadap kelimpahan gastropoda. Penelitian ini menggunakan metode survei dengan penentuan stasiun pengambilan sampel secara purposive sampling. Untuk mengetahui perbedaan kelimpahan Gastropoda digunakan uji one way ANOVA, sedangkan hubungan bahan organik sedimen terhadap kelimpahan Gastropoda dilakukan uji statistik korelasi dan regresi linier sederhana. Hasil penelitian menunjukkan kandungan bahan organik sedimen pada setiap stasiun berkisar antara 4,52-10,82 %. Pada lokasi penelitian ditemukan 9 famili, 12 genus dan 17 spesies Gastropoda yang terdiri dari Stramonita sp, Bolinus brandaris, Hexaplex trunculus, S.haemastoma, Thais tuberosa, Cerithium nesioticum, Strombus sp, Nassarius sp, N.jacksonranus, Hemifusus elongates, dan Pugilina cochilidium, Neverita sp, N.didyma, N.lineata, Littoraria undulate, L. scabra, dan L.strigata. Kelimpahan Gastropoda antar stasiun memiliki nilai 0,09-0,41 ind/5m2 dengan rata-rata 0,26 ind/5m2 dan terdapat perbedaan signifikan kelimpahan Gastropoda antar stasiun. Kelimpahan Gastropoda antar subzona intertidal memiliki nilai 0,22-0,28 ind/5m2 dan tidak terdapat perbedaan signifikan kelimpahan Gastropoda antar subzona intertidal. Pola distribusi Gastropoda bersifat mengelompok dengan nilai indeks morisita 2,92-3,36 (Id > 1). Hasil uji korelasi dan regresi memiliki nilai signifikan 0,574 > 0,05 yang menunjukkan tidak terdapat hubungan antara kandungan bahan organik sedimen dengan kelimpahan Gastropoda. Nilai koefisien korelasi R2 sebesar 0,0471 menunjukkan keeratan hubungan yang sangat lemah. Hasil uji korelasi dan regresi linear diinterpretasikan pada persamaan Y = 0,1789 + 0,01x.
Comparison of Macrozoobenthos Community Structure in Reclaimed and Natural Beaches in Padang City, West Sumatra Helda, Helda; Tanjung, Afrizal; Thamrin, Thamrin
Jurnal Perikanan dan Kelautan Vol. 29 No. 3 (2024): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.3.334-342

Abstract

dang City is one of the cities with a long coastline. The Padang City government has made many reforms to manage the beach area as a tourist attraction. This research aimed to determine the comparison of macrozoobenthos community structure, including species composition, species abundance, relative abundance, diversity index, similarity index, dominance index, and distribution patterns in the reclaimed and natural beaches of Padang City, West Sumatra Province. The method used was purposive sampling with sample collection using the transect method. The results of this study indicate that the water quality in Padang City, West Sumatra, is sufficiently good to support macrozoobenthos life. The highest species abundance of macrozoobenthos was found at the Reclamation Beach Station. The macrozoobenthos species found belong to 2 classes: Gastropoda and Crustacea. The Gastropoda class consists of 4 species: Babylonia spirata, Pila ampullacea, Pila occidentalis, and Nerita fulgurans, while from the Crustacea class, three species were found: Ashtoret lunaris, Hemigrapsus takanoi, and Emerita sp. Meanwhile, the lowest abundance was found at the Natural Beach Station, where the species belonging to the Crustacea class, specifically H.takanoi, was found. The species diversity of macrozoobenthos at the Natural Beach Station is considered low but moderate at the Reclamation Beach Station. Similarity at the Natural Beach Station is low, while at the Reclamation Beach Station, it is high. Additionally, there is a dominant species at the Natural Beach Station, whereas no dominant species were found at the Reclamation Beach Station. The distribution pattern of macrozoobenthos in the coastal waters of Padang City is categorized as clustered distribution.
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.
Pemberdayaan Masyarakat dan Lingkungan Melalui Revitalisasi untuk Meningkatkan Sumber Daya Manusia Kreatif di Desa Empat Balai Kecamatan Kuok Kabupaten Kampar Tanjung, Afrizal; Maulana, Alfito; Anggraini, Hafidah Novi; Riani, Anita Eva; Aurhariyani, Nisha; Muffadillah, Rehan; Anggraeni, Riski; Syahrizal, Syahrizal; Khaerunnisa, Dwi Rani; Murni, Richy Restia
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

Kuliah Kerja Nyata dilaksanakan di Dusun Pulau Balai, Kuok, Riau selama 40 hari pada tanggal 10 Juli 2023 hingga 18 Agustus 2023. Banyak potensi yang dimiliki oleh Desa Empat Balai ini dengan berbagai macam mata pencarian masayarakat. Potensi desa yang melimpah menjadi salah satu tujuan untuk dapat meningkatkan kualitas Sumber Daya Manusia (SDM), serta mengolah dan juga mengembangkan potensi yang ada di desa. Kegiatan dilakukan dengan proses sosialisasi dan observasi untuk mengetahui dan mengembangkan potensi desa yang ada. Program kerja Kuliah Kerja Nyata dilaksanakan secara berurutan, diawali dengan diskusi antara kelompok kuliah kerja nyata dengan perangakat desa serta masyarakat setempat, khususnya masyarakat yang bersangkutan.
Macrozoobenthos Community Structure as an Indicator of Water Quality in the Intertidal Zone of Pariaman City, West Sumatra Province Manalu, Govinda Hendra; Siregar, Yusni Ikhwan; Tanjung, Afrizal
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.5.2.114-124

Abstract

Community structure refers to the arrangement and composition of species in a natural community and their abundance. Ecologists use various indices to assess community structure, including diversity index, evenness index, and dominance index. One helpful indicator for evaluating water quality is the presence and characteristics of macrozoobenthos, organisms living in the sediment of aquatic environments. The study focused on the community structure of macrozoobenthos as an indicator of water quality in the coastal waters of Pariaman City, West Sumatra. Conducted between February and March 2023, the research analyzed samples collected from the Marine Biology and Marine Chemistry Laboratories at Universitas Riau. Findings revealed the presence of 7 phylum, eight genera, and 16 macrozoobenthos species, with abundance ranging from 8.56 Ind/m2 to 18.44 ind/m2. The diversity index indicated moderate diversity, while the evenness index suggested an uneven distribution of individuals. No dominant species were found. Based on the analysis of macrozoobenthos community structure, water quality in Pariaman City's coastal waters was classified as good
Bivalve Abundance and Distribution in the Seaweed Ecosystem in the Waters of Jago-Jago Village, Tapanuli Tengah, North Sumatra Province Siagian, Yosua; Zulkifli, Zulkifli; Tanjung, Afrizal
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.5.2.135-142

Abstract

This research was conducted in May 2022. This research was conducted in Jago-jago Village, Tapanuli Tengah, North Sumatra Province. The aim was to determine the abundance and distribution pattern of bivalves in the study area. The method used in this study is a survey method, namely direct observation, taking samples in the field, and then analyzing them in the laboratory. Determining observation stations and data collection using the purposive sampling method is done by considering various conditions at the research location. Sampling was carried out at three stations that were considered representative of the research area. Each station consists of 3 transects with a length of 50 m each, where each transect has three plots measuring 1x1m2. From the research results of the types of bivalves found in the coastal waters of Jago-Jago Village during the study, there were six types of families, namely Arcidae, Cardiidae, Mesodesmatidae, Ostreidae, Donacidae, and Corbiculidae. At the same time, there were as many as six species: Anadara antiquata, Trachycardium subrugosum, Atactodea sp, Crassostrea sp, Donax sp, and Polymesoda erosa. Based on the results of the ANOVA test, it was known that the abundance of bivalves in the coastal waters of Jago-Jago Village showed a significant value obtained <0.05, namely 0.016. This indicates that the difference in abundance between stations is significantly different. The average organic matter content at station 1 is 4.59%. The substrate is muddy sand with an abundance value of 4.33 ind/m2. At station 2, the organic matter content is 4.05% with sand substrate, and the abundance value is 3.11 ind/m2. The organic matter content at station 3 is a 6.39% sandy mud substrate with an abundance value of 6.11 ind/m2. The highest relative abundance of bivalves found at station 3 was Donax sp, which is 32.72%.
The Effect of Azolla microphylla Liquid Fertilizer on the Growth of Nannochloropsis oculata Populations on a Laboratory Scale Padli, Fery; Tanjung, Afrizal; Nasution, Syafruddin
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.5.1.27-33

Abstract

Nannochloropsis oculata is a microalgae often used as natural food for fish larvae. In general, microalgae cultivation uses standardized Walne fertilizer. This research uses an experimental method to determine the effect of administering Azolla microphylla liquid fertilizer at different doses on the growth of the N. oculata population on a laboratory scale. This experiment was conducted from September to October 2022 at the Experimental Pond Laboratory, Biotechnology Laboratory, Marine Biology Laboratory, Department of Marine Science, Faculty of Fisheries and Marine, Universitas Riau. This research used a Simple, Completely Randomized Design (CRD) with four treatment levels and three replications. The treatment used A. microphylla liquid fertilizer with doses A (2 mL), B (3 mL), C (4 mL), and D (Walne fertilizer control). The results showed that the highest population density was in treatment D (control) on day 6 with a value of 483.5 x 105 (cells/mL) and treatment C (4 mL A.microphylla fertilizer) on day 5 with a value of 437.3 x 105 (cells/mL). The results of the ANOVA test showed a significance value of 0.007 < 0.05, which indicated a significant difference between the treatment of A. microphylla liquid organic fertilizer at different doses on the density of N.oculata. Relatively, the growth rate of N. oculata in treatment D (Walne fertilizer) was still the highest, with a value of 170.868%, and treatment C, with a percentage of 145.005%. Furthermore, the specific growth rate in treatment B was the highest, with a value of 1.730% on day 4. The Walne liquid fertilizer treatment, which was the control, was still higher and dominated the population and growth rate of N. oculata and could not be replaced with A. microphylla liquid fertilizer
Co-Authors ', Intan AA Sudharmawan, AA Abdurrahman, M. Adila, Melin Afdol, Muhammad Afrilianti, Azyarah Ahmad, Alianisa Al-Izhar, Muhammad Alhadad, Ilham Anggara, Bob Anggraeni, Riski Anggraini, Hafidah Novi Apriani, Cici Aprilisty, Fiolla Aras Mulyadi Arliansyah, Prayoga Armani, Shanya Puthi Arsyad, Fadila Asma Husna Putri Asma Ul Husna Putri Asmawi, Dandi Aurhariyani, Nisha Basiluddin, Fadhlan Bona Juandi Chatarina Umbul Wahyuni Cici Lestari Manurung Deddy Bahagia Manik Dedi . Deski, Alwiandra Dessy Yoswaty Dewi Sujani Adithiya Dimas Agung Guntara Dodik Febriyantoro, Dodik Dony Ingot Panjaitan Efriyeldi, Efriyeldi Eka Saputra Elizal Elizal Elizal, Elizal Elvi Hartati Anggraini Fachry Abda El Rahman Fadhil, Mohd. Isfan Fahira, Adhita Fiky Fahmia, Rani Faida, Nurul Amanda fajar sidik Fajri, Ferli Farid Ramadan Febriani, Riska Feliatra Ferdi Fajri Fernando, Aldo Firmansyah Firmansyah Fitrimeutia, Chindi Giovano Aldizia Gurning, Misael Gusfi, Melly Gusti, Melly Hafidza, Amanda Hagabean, Mora Hapzi Ali Harif, Ichwanul Harpani, Harpani Hayen, Nabilla Syima Putri Nur Helda Helda Helda Helda Henni Syawal Ichwanul Harif Ide Rival Dianta Sitepu Ilbi Candra Yani Ilcia Teshi Diafana Ilham Apriandi Ilham Ilahi Irvan Dwi Putra Irvina Nurachmi Irwan Effendi Irwan Irwan Isma, Muhammad Fauzan Ivyna Clarisa Tampubolon Jean Fattikawa Siahaan, Jean Fattikawa Jeprin Hasibuan Joko Samiaji Judita Grace Merry Nainggolan Juliando Saputra Jung jung Maranata Junika Cecelia Putri Kaprisal, Kaprisal Khaerunnisa, Dwi Rani Khaidir Khaidir Khoiriyah, Latifatul Kusuma, Jaya Adi Lamun Bathara Limbong, Sherina Br Lutfhi, Muhammad Maatitawaer, Natasya Debora C Manalu, Govinda Hendra Manalu, Lili Yanti Mardiono Rajagukguk Marya Ulfa Marya Ulfa Maulana, Alfito Mawaddah, Fauzana Jihan Mayang Shintana, Mayang Mendrofa, Albertus Andika Mhd. Fadhillah, Mhd. Fadhillah Mirna Kumala Sari Dalimunthe Mochammad Imron Awalludin Mubarak Mubarak Mubarok, Ihsan Dwi Muffadillah, Rehan Mufidah, Marhamah Nurul Mukramin, Ibnu Murfi, Indah Permata Murni, Richy Restia Musrifin Ghalib Mustofa, Adelia Musyirna Rahmah Nasution Nainggolan, Judita Grace Merry Nasution, Syafrudin Nasution, Tio Afandi Nico Rahmadany Novhitasari Simbolon Nuraini Nuraini Nurhaliza, Hani Oriza, Syucitra Padli, Fery Pertika, Dinda Putra, Jefri Eliyas Putra, Rayhan Dwi Putri, Asma Ul Husna Putri, Dian Seftiani Putri, Rahmania Putri, Salsabila Azharia Putri, Uci Kurnia Rafi Novendri Kaslan Rahma, Alifia Al Ramadhan Ramadhan Ramadhan Ramadhan Ranti Wulandari Raudhatul Jannah Remi Fiter Riani, Anita Eva Rifardi Rio Syahputra Rivilgo, Wawan Rizki, Sofia Wanda Romanta A. Tamba Romanta Andrianus Tamba Ronaldy Saputra Simamora, Ronaldy Saputra Rosanti Dina Raya Rosyidin, Hidayatul Rusadi, M Dio Eigmar Saadah, Isyatis Sahira, Nur Sastrawan Barus Satria Putra Anggara Setiawan, Ilham Siagian, Yosua Siahaan, Vani Oktavia Sibarani, Rosari Siburian, Hendra Yosep Sihotang, Usia Xoros Silaban, Tulus Gandra Saputra Simanjuntak, Naomi Sinaga, Andri Decshana Sinaga, Nella Asima Br. Siregar, Vonny Aprilia Sitompul, Krivide Sofyan Husein Siregar Solistio, Ardiken Afri Sri Wira Rahayu Ningsih Syafruddin Nasution Syafruddin Syafruddin Syahril Nedi Syahrizal Syahrizal Syahrul Nedi, Syahrul Tampubolon, Kristanti Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Thamrin Utama, Rinol Putra Utari, Vannesa Vani Oktavia Siahaan Victor Simanungkalit Winata, Bisma Panca Wulandari, Ranti Yanti, Lola Feby Yosefa, Bella Yuhanda, Sabina Dwi Yulia, Murni Yusni Ikhwan Yusni Ikhwan Siregar Zani, Rahma Zevira, Bella Permata Zulfa, Randa Pratama Zulkifli &#039; Zulkifli Zulkifli Zulpikar &#039;