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All Journal Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Dinamisia: Jurnal Pengabdian Kepada Masyarakat Asian Journal of Aquatic Sciences Journal of Coastal and Ocean Sciences Jurnal Ilmu Komputer dan Sistem Komputer Terapan (JIKSTRA) Journal of Rural and Urban Community Empowerment Nanggroe: Journal Of Scholarly Service Nanggroe: Journal of Scholarly Service Jurnal Perikanan dan Kelautan Tropical Marine Environmental Sciences Jurnal Natur Indonesia
Afrizal Tanjung
Universitas Riau
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Size and Distribution of Bivalva in the Interidal Zone in Sambungo Village, Silaut District, Pesisir Selatan Regency, West Sumatera Province Silaban, Tulus Gandra Saputra; Tanjung, Afrizal; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 3 No. 2 (2022): 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/

Abstract

This research was carried out in January 2021 in the Intertidal Zone of Sambungo Village, Silaut District, Pesisir Selatan Regency, West Sumatra Province. The purpose of this study was to determine the size variation of the bivalve, the distribution pattern of the bivalve, the effect of the type of sediment fraction on the size, and the distribution of the bivalve in the intertidal zone. The method used in this research is a survey method which is carried out by direct observation and sampling in the field. Bivalve samples obtained were identified at the Marine Biology Laboratory and Sediment Fraction Analysis was carried out at the Chemical Analysis Laboratory, Faculty of Fisheries and Marine, Universitas Riau. Based on the results of the study, the highest number of bivalves was at station 1 as many as 11 individuals. The distribution pattern of macrozoobenthos in the intertidal zone of Sambungo Village ranges from 3.86 to 5.07 with the highest morisita index value being at station 1. The highest percentage of sediment fraction is 96.53% in the lower zone and the highest organic matter content is at station 1 of the lower zone. with a total percentage of 6.65%. Based on the criteria for the morisita index at station 1, station 2, and station 3 with an Id>1 value, it can be concluded that the distribution of Bivalvia in the intertidal zone in Sambungo Village is clustered
Diversity and Distribution Patterns of Macrozoobenthos in the Intertidal Zone of Pasumpahan Island, Padang City, West Sumatra Province Utari, Vannesa; Thamrin, Thamrin; Tanjung, Afrizal
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

Macrozoobenthos are organisms that live sedentary (sessile) and have varying adaptability to environmental conditions. In addition, the level of diversity found in the aquatic environment can be used as an indicator of pollution. The purpose of this study was to determine the type, abundance, diversity, and distribution pattern of macrozoobenthos in the intertidal zone. This research was conducted in the waters of Pasumpahan Island. The method used in this study was a survey method, while sampling was carried out using three stations and each station consisted of 3 transects and three sub-zones using a 1m x 1m quadrant map. The results of this study found that the abundance value at each station was 4.22-5.78 ind/m2, while the abundance in the sub-zone ranged from 3.00-7.67 ind/m2, the diversity index (H') at the study sites ranged from 1.65-2.31, which means 1.0 ≤H' < 3.0 and the diversity of macrozoobenthos at the study site was categorized as moderate. The distribution pattern (Id) of macrozoobenthos at locations was clustered with a value of 1.05-1.28. The results of the One Way ANOVA test between stations obtained a value of 0.001 where p <0.05, which means H0 was rejected and there was a significant difference between the 3 stations, followed by the LSD test to find out which average between stations was the most different real
Coastal Habitat Suitability of Kade Tigo, Tapanuli Tengah for Marine Ecotourism Sinaga, Nella Asima Br.; Samiaji, Joko; Tanjung, Afrizal
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

This research was carried out in February – May 2022 at Kade Tigo Beach, Central Tapanuli. This study aims to determine the suitability value and carrying capacity of Kade Tigo Beach for sustainable marine ecotourism. The method used is a survey method with the determination of research stations by purposive sampling. Based on the study's results, an average travel suitability index value was obtained of 88% and was categorized in the very appropriate category. The carrying capacity of the Kade Tigo Beach area is 9,000 people a day, 270,000 people a month, and 3,285,000 a year
The Relationship between the Organic Material Content of Sediments and the Abundance of Macrozoobentos in Saruang Sakin Beach, Sungai Nyalo Village, West Sumatra Province Afdol, Muhammad; Nedi, Syahril; Tanjung, Afrizal
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

This research was conducted in June 2022 in the coastal area of ​​Saruang Sakin, Sungai Nyalo Village, West Sumatra Province. This study examines the relationship between sediment organic matter content and the abundance of macrozoobenthos. The method used in this study is the survey method, in which samples will be taken directly at the research location, sediment sampling using a pipe with a size of 10 cm and a length of 70 cm, and macrozoobenthos samples taken directly by hand and a shovel in a plot with a size each plot 1 m x1 m, to see the relationship between the organic matter content of the sediment and its abundance, a simple linear regression test was carried out. Sediment samples were analyzed in the marine chemistry laboratory, and macrozoobenthos samples were analyzed in the marine biology laboratory. This study's results indicate that the sediment's organic matter content ranges from 1.03% - 4.30%. The abundance of macrozoobenthos between study stations obtained an average abundance value of 3.44-5.89 ind/m². The simple linear regression test results obtained a correlation value of 0.092 with a coefficient of determination of 0.1 and a significance value of 0.942
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
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
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%.
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
GROWTH OF Spirulina platensis IN INDOOR AND SEMI OUTDOOR CULTURING SYSTEMS Nainggolan, Judita Grace Merry; Tanjung, Afrizal; Effendi, Irwan
Asian Journal of Aquatic Sciences Vol. 1 No. 1 (2018): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (297.669 KB)

Abstract

Microalgae are very potential to be developed as biofuel feedstocks when compared to food crops because they have several advantages such as rapid growth, high productivity, enabling the use of freshwater and seawater, and production costs are not too high. Spirulina platensis has a high nutrient content so it is used as a health food ingredient. Once the importance of the role of nutritional value of S. platensis for humans and some marine organisms, then the right culture medium to get the maximum nutritional content needs to be studied more deeply. This study aims to determine the effect of different doses of nutrition on the density of biomass cultivation of S. platensis microalgae with indoor and semi outdoor system. This research has been conducted from April to May 2018. The method by used the experimental method. The data obtained were analyzed statistically using simple linear regression equation. The results showed that the influence in the dose of nutris media guillard, S.platensis increased with the dose of nutrients as much as 0.60 ml either indoor or semi outdoor system. As for the amount of biomass density S. platensis in the semi-outdoor system the amount of biomass density is higher than the indoor system
ANALYSIS CONTENT OF ORGANIC MATTER IN SEDIMENT AND ABUNDANCE OF MACROZOOBENTHOS IN TELUK BUO PADANG WEST SUMATERA Utama, Rinol Putra; Nedi, Syahril; Tanjung, Afrizal
Asian Journal of Aquatic Sciences Vol. 2 No. 3 (2019): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1009.728 KB)

Abstract

This research was conducted in May 2018 in the waters of Teluk Buo, Padang, West Sumatra. The purpose of this study was to determine the environmental quality of the Teluk Buo waters, especially to determine the abundance of macrozoobenthos and determine the relationship between sediment organic matter and abundance of macrozoobenthos. The method used in this study is a survey method. The results of the study note that the waters of the Teluk Buo are included in the medium polluted criteria with a diversity index (H ') ranging from 2.18-3.43, dominance index (C) 0.10-0.32 and uniformity index (e) 0.51-0,78. Abundance ranges from 80-240 ind/m2 with the number of macrozoobenthos species found there are 9 species of gastropods and 5 species of bivalves. The relationship of sediment organic matter content to macrozoobenthos abundance was included in the moderate criteria with a correlation coefficient (r) -0.382
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;