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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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SEDIMENT ORGANIC MATTER AND MAKROZOOBENTHOS ABUDANCE IN WATERS OF PURNAMA DUMAI Gurning, Misael; 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 (535.459 KB)

Abstract

This research was conducted at April 2019 in Waters of Purnama Dumai. The aim of the study was to analyze the content of organic sediment and macrozoobenthos abundance and the relationship of organic sediment with macrozoobenthos abundance. The method used was a survey method consisting of 4 stations with 3 replications at each station. Sampling was carried out in the field and then taken to the Marine Chemistry Laboratory for analysis of sediment and organic material fractions. The results showed that the average content of organic sediment material in Waters of Purnama Dumai is 66,47 % and the content of organic sediment material between different stations is not significantly different (P>0,05) while the abundance of macrozoobenthos is 32 ind/m2 and the abundance of macrozoobenthos between stations was not significantly different (P>0,05). The relationship between the organic matter content of sediments and the abundance of macrozoobenthos has a value (r) = 0,235797 which means it has a weak relationship
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.
MACROZOOBENTHOS COMMUNITY STRUCTURE IN THE INTERTIDAL ZONE OF MUARA AIR HAJI VILLAGE PESISIR SELATAN REGENCY WEST SUMATERA PROVINCE Alhadad, Ilham; Tanjung, Afrizal; Zulkifli, Zulkifli
Asian Journal of Aquatic Sciences Vol. 7 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Muara Air Haji Village is a coastal area with various anthropogenic activities that can disrupt the aquatic ecology, especially in the intertidal zone. Biological indicators such as macrozoobenthos are needed to provide a correct and sustainable picture of water quality. This research uses a survey method to determine macrozoobenthos' type, abundance, diversity, uniformity, dominance, and distribution pattern in the intertidal zone. Sampling was carried out using three stations, and each station consisted of three transects and three subzones comprised of the upper, middle, and lower intertidal zones using a quadrant plot measuring 1 x 1 m. The results of this research found three classes of macrozoobenthos with five species. Abundance values ​​at each station ranged from 0.89–4.56 ind/m2, while abundance in the intertidal subzone ranged from 1.11–3.56 ind/m2. The diversity index (H') at stations I and III is 1.93 and 1.17, which means it is included in the medium diversity category, while the diversity index (H') at station II is 0.84, which means it is included in the low category, moderate distribution of individuals or non-uniform number of individuals, moderate ecological pressure and moderately polluted water stability. The uniformity index value ranges from 0.65–0.99, which means the uniformity category is balanced. At station II, macrozoobenton dominates with an index value of 0.62, while stations I and III have no dominant species with index values ​​of 0.30 and 0.45. The distribution pattern (Id) of macrozoobenthos is clustered with a value of 3.45–4.18.
BIOMASS PRODUCTION AND SINGLE-CELL PROTEIN (SCP) ENCAPSULATION OF BACTERIA Bacillus cereus SN7 Mukramin, Ibnu; Feliatra, Feliatra; Tanjung, Afrizal
Asian Journal of Aquatic Sciences Vol. 7 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Bacillus cereus SN7 is a bacterium with potential applications in producing Single-Cell Protein (SCP). SCP can be an alternative to protein derived from traditional sources like agriculture, fisheries, and animal husbandry. Encapsulation is a process used to stabilize cells, aiming to potentially enhance probiotics' viability and stability throughout production, storage, and handling. This study aims to make capsules from B. cereus SN7 single-cell protein to protect them from contaminants. This study used a survey method, which carried out in-situ processing of bacteria, as well as conducting experiments on the formation of bacterial encapsulation, testing the effectiveness of encapsulation, and observing the viability of B. cereus SN7 bacteria by counting the number of colonies. B. cereus produced biomass with a total dry weight of 1.3708 g/mL. The alginate encapsulation experiments can be formed into capsule beads that protect bacteria. The best encapsulation process is an alginate-based coating, which is indicated by the ability of the alginate to withstand temperature, pH, and salinity.
GASTROPOD DIVERSITY AS A BIO-INDICATOR OF AQUATIC POLLUTION IN SIRONJONG GADANG ISLAND PESISIR SELATAN DISTRICT Sihotang, Usia Xoros; Tanjung, Afrizal; Yoswaty, Dessy
Asian Journal of Aquatic Sciences Vol. 7 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This study aims to determine the diversity of gastropods and water conditions on Sironjong Gadang Island, Pesisir Selatan Regency. This research was conducted in August 2022 in the waters of Sironjong Gadang Island and the Marine Biology Laboratory and Marine Chemistry Laboratory of the Department of Marine Science, Universitas Riau. The method used in this research is the survey method, which is direct observation of the research area and sampling and measurement of water quality parameters in the field. The results of the study found gastropod species consisting of 4 (four) families, 4 (four) genera, and 8 (eight) species. The diversity value (H') was at a moderate level of diversity. The highest gastropod density was found at Station I, with a density value of 16.33 ind/m², and the lowest density was found at Station III, with a density value of 13.89 ind/m². The highest relative density was Monodonta labia species, with a relative density value of 27.6%, while the lowest relative density was Haustrum-scoring species, with a relative density value of 3.3%. Temperature 28-29˚C; salinity 25-27 ppt; pH 7.91-7.95; brightness 1.55-2.65 m. The sediment type at Station I was dominated by muddy gravel, Station II was dominated by sandy gravel, and Station III was defeated by sandy gravel with a total sediment organic matter content of 6.10-10.05%.
BIVALVE COMMUNITY STRUCTURE IN THE INTERTIDAL ZONE OF PASUMPAHAN ISLAND PADANG CITY WEST SUMATERA PROVINCE Zani, Rahma; Tanjung, Afrizal; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Bivalvia is a class of the Mollusca phylum. Bivalvia is also known as Pelecypoda and Lamellibrankhiata. Bivalvia occupies an area of the intertidal zone, one of which is in the intertidal zone of Pasumpahan Island. But information about bivalves in the area does not exist. To know/understand information about the density and distribution pattern of bivalves on Pasumpahan Island, this research was conducted in January 2022. The sampling area was in the intertidal zone of Pasumpahan Island. Sampling was carried out at three stations, each station was divided into three transects. Bivalve sampling was carried out using a 1 x 1mm sieve. The movement of bivalves to the gravel substrate is very fast to avoid splashing waves. Bivalves samples were then identified. The density of bivalves in the intertidal zone of Pasumpahan Island ranged from 1.78-3.56 Ind/m2. Station 2 has a higher density of bivalves, namely 3.56 Ind/m2, the calculation of bivalves in the intertidal zone of Pasumpahan Island obtained bivalves distribution pattern data in groups.
MACROZOOBENTHOS COMMUNITY STRUCTURE IN SETAN ISLAND, MANDEH TOURISM AREA, PESISIR SELATAN, WEST SUMATRA Al-Izhar, Muhammad; Tanjung, Afrizal; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Macrozoobenthos are aquatic organisms that live on the bottom of the water. Macrozoobenthos can be tolerant or sensitive to environmental changes. Organisms that live relatively sedentary and have varying adaptability to environmental conditions. However, there is no information about macrozoobenthos on Setan Island in Mandeh Tourism Area. To know/understand information about the density and distribution patterns of macrozoobenthos on Setan Island, this study was conducted in January 2022. The sampling area is in the intertidal zone of Setan Island. Sampling was conducted at three stations, each station was divided into three transects. Macrozoobenthos sampling was done using a sieve measuring 1mm x 1mm. The movement of macrozoobenthos to the gravel substrate was relatively slow to avoid the waves. Macrozoobenthos samples were then identified. The density of macrozoobenthos on Setan Island ranged from 2.89-3.89 ind/m2. Station 2 has a higher macrozoobenthos density of 3.89 Ind/m2, the calculation of macrozoobenthos on Setan Island obtained data on the distribution pattern of macrozoobenthos in clusters.
MACROZOOBENTHOS COMMUNITY STRUCTURE IN INTERTIDAL ZONE OF SAMBUNGO VILLAGE PESISIR SELATAN REGENCY OF WEST SUMATERA PROVINCE Anggara, Bob; Tanjung, Afrizal; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted in the village of Sambungo, Silaut District, Pesisir Selatan Regency, West Sumatra Province in August 2020. The purpose of this study was to determine the structure of the macrozoobenthos community which includes: type, density, diversity, uniformity, dominance and distribution patterns. Sampling was done randomly at 3 stations, each station consists of 3 transects and each transect consists of 3 plots, namely in the upper middle and lower in the intertidal zone. The results of the study found 5 classes of macrozoobenthos with 9 species. The abundance values ​​obtained ranged from 3.33 - 5.11 ind/m2. The diversity index value ranges from 1.18-1.54 which is classified as moderate, while the dominance index value ranges from 0.39-0.52, namely there was no species that dominate, the uniformity index value ranges from 0.03-0.06 which is not balanced and the value of the distribution pattern ranges from 2.81 to 3.76 with the pattern of distribution in groups.
THE EFFECT OF DIFFERENT FEED ON THE GROWTH RATE OF Artemia salina Tampubolon, Kristanti; Effendi, Irwan; Tanjung, Afrizal
Asian Journal of Aquatic Sciences Vol. 3 No. 1 (2020): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Artemia salina is a natural feed that is widely used in fish and shrimp hatcheries due to of its good nutritional content. This research was conducted in August 2019. This study aims to determine the effect of different types of feed on the growth rate of A. salina on a laboratory scale. The method used in this study was an experimental method that uses a completely randomized design (CRD) 1 factor with 3 level namely, cornstarch (A), wheat (B) and tapioca (C). Water parameters show that the conditions was in good condition with average temperatures ranging from 28.1 - 28.7 oC, the pH 8 and with a salinity of 60 ppt. Body length of A. salina ranged from 5.33 - 82.33 mm, where the body length in level A (cornstarch) was 82.33, level B (wheat) was 54.33, level C (tapioca) was 18, 67 and the control level is 5.33. The results of the ANOVA test for body length increase of A. salina showed p<0.05, that is 0.00. The survival rate of A. salina with different feed ranges from 0.5% - 88.50%, where the survival rate in level A (cornstarch) is 88.50%, level B (wheat) is 3.17%, level C (tapioca) is worth 51.50% and Control level is worth 0.5%. Survival rate in level A (cornstarch) is quite good. Based on ANOVA test, the survival rate between levels showed p<0.05, that is 0.00.
RELATIONSHIP BETWEEN SEDIMENT TEXTURE AND ABUNDANCE OF Telescopium telescopium IN THE MANGROVE ECOSYSTEM OF THE NYALO RIVER, PESISIR SELATAN, WEST SUMATRA Armani, Shanya Puthi; Tanjung, Afrizal; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The research was conducted in October-November 2021 in the Nyalo River Mangrove Ecosystem, South Coast of West Sumatra, aiming to determine the characteristics of sediment texture, an abundance of Telescopium snails (Telescopium telescopium), and the relationship between sediment particle size. The abundance of mangrove snail populations. Habitat parameters measured include physical and chemical parameters of marine waters. Station determination using purposive sampling method. Sampling locations are divided into 3 collection points or stations that are considered to represent the study area with one transect at each station. Mangrove snails were sampled using a 3m x 3m plot with three subplots placed along the transect. The results showed that the type of substrate varied at each station. The average size ranges from 3.58 – 2.05 with very fine sand classification dominating. The abundance of the mangrove snail population ranged from 1.78–14.89 ind/m2. The correlation between sediment particle size and the abundance of mangrove snail populations is related but not closely related.
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;