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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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COMMUNITY STRUCTURE OF MAKROZOOBENTHOS IN THE INTERTIDAL ZONE OF KARANG ISLAND, CENTRAL TAPANULI, NORTH SUMATERA Sinaga, Andri Decshana; Mulyadi, Aras; Tanjung, Afrizal
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT Makrozoobenthos is a benthic animal measuring >500µm that lives on the bottom and surface of the water substrate. Makrozoobenthos community structure is influenced by changes in environmental factors. The reseach was conducted in August-November 2018 in the coastal waters of the Karang island of Sosorgadong District, Central Tapanuli Regency, North Sumatera Province.The aims of the research were to determine the structure of the makrozoobenthos community which includes species, abundance, diversity index, uniformity index and dominance index. Sampling used the line transect method at 3 stations. The results of the study found 5class makrozoobenthos consisting of 24 species. The abundance value obtained was in the range of 7-8 ind./m2. Diversity index values ranged from 1.07-1.48, which are classified as moderate, while the uniformity index value ranges from 0.72-0.91 which is balanced. The dominance index value ranged from 0.39-0.59, i.e there are species that dominate.Keywords: Makrozoobenthos, Community Structure, Karang Island
Distribution Pattern and Sex Ratio of Lokan Shellsfish (Batissa violacea) in the waters of the Padang Birik-birik Village, North Pariaman District, Pariaman City Adila, Melin; Tanjung, Afrizal; Efriyeldi, Efriyeldi
Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Vol 6 (2019): Edisi 1 Januari s/d Juni 2019
Publisher : Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan

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Abstract

ABSTRACT This research was conducted in January 2019 at the Padang Birik Village, North Pariaman.The purpose of this research was to determine the pattern of distribution, abundance, sex ratio and frequency of lokan shellfish (B. violacea) size. The methods of this research was the survey methods,where the research station consists of 3 stations that werestation 1 in the mangrove area of Padang Birik-birik Village, station 2 was located in the estuary area close to the beach of Padang Birik -birik Village, station 3 was located adjacent to the coastal residential area in the village of Padang Birik –birik.Analysis was carried out in the Marine Biology Laboratory, University of Riau. The results of this study are the distribution pattern in the mangrove ecosystem clustered and the distribution pattern in the residential area were evenly distributed. The highest abundance was found in the mangrove ecosystem and the lowest was in residential areas. Sex ratio are generally male and female are balanced (1: 1.02). The most commonly found class of shellfish size 38,5-49,5 mm.Keywords: Lokan shells (B. Violacea), distribution patterns, abundance, sex ratio, frequency of size
Temporal Study of TSS (Total Suspended Solid) Around Porong River Estuary Due To the Influence of Lapindo Mud Based On Landsat 8 OLI Satellite Imagery Mubarok, Ihsan Dwi; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 24, No 2 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.24.2.119-129

Abstract

This research was conducted in April 2019 to determined TSS concentrations using Landsat 8 OLI Satellite imagery and of to the coefficient TSS concentrations at period of before and after Lapindo mudflow event using Landsat 8 OLI satellite imagery in Porong River estuary Sidoarjo Regency East Java Province. TSS from 25 sampling points with 3 replication were taken from the estuary. The result showed that fluctuation of TSS occured around Porong River estuary before and after Lapindo mudflow event from 2000-2019. Algoritm of Budhiman (2004) got the best result for analyst TSS concentration around Porong River estuary. The highest concentration was in estuary. In 2008, the concentration in estuary was 216,07 mg/l. (R2 =0,915 ; r = 0,957). The Development of Algoritm of Budhiman (2004) produced formula of TSS (mg/l) = -6.7625 + (1.2129 * (8.1429 * (Exp (23.704 * 0.94 * Band-Red))))
Determination of Relative Sedimentation Velocity using Benthic Foraminifera in Pasaman Barat Sasak Beach Waters West Sumatra Province Firmansyah, Firmansyah; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 24, No 1 (2019)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.24.1.41-51

Abstract

This research was conducted in May - August 2018 in the waters of Sasak Beach Pasaman Barat, West Sumatra Province. The purpose of this research was to determine the relative sedimentation velocity, the type of benthic foraminifera, and the distribution pattern of benthic foraminifera in the waters of Sasak Beach Pasaman Barat, West Sumatra. The method used in this research is purposive sampling method which is divided into 3 stations. The highest relative sedimentation velocity is found at Station I with a value of 28.0%, the relative sedimentation velocity is highest at station II with a value of 35.0%, and at station III 20.0%. The most commonly found foraminifera species are Ammonia beccarii, Quinqueloculina disparilis and Quinqueloculina laviegata. Benthic foraminifera from 3 observation stations can be divided into 6 groups. Group I was characterized by Ammonia beccarii (Line Form B), Ammonia beccarii (Line Form C), Textularia aglutinans and Trochammina inflate. Group II is characterized by Ammonia beccarii (Line Form A, B and C), Nonionoides gratelouupi, Quinqueloculina laviegata, and Spiroloculina laviegata. Group III is characterized by Ammonia beccarii (Line Form A, B and C), Spiroloculina laviegata, and Triloculina oblonga. Group IV is characterized by Ammonia beccarii (Line Form A, B and C), Nonionoides gratelouupi, Quinqueloculina disparilis, and Miliolina subrotunda. Group V is characterized by Ammonia beccarii (Line Form A, B and C), Quinqueloculina laevigata and Spiroloculina laevigata. Group VI is characterized by Ammonia beccarii (Line Form A, B and C), and Sigmoilinita distort. The distribution pattern of benthic foraminifera tends to clumped
EVALUASI FAKTOR EKOLOGI DAN DISTRIBUSI KERANG SENTENG (Placuna placenta) DI MUARA SUNGAI BELA KABUPATEN INDRAGIRI HILIR PROVINSI RIAU Isma, Muhammad Fauzan; Nasution, Syafruddin; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 20, No 2 (2015)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.20.2.10-19

Abstract

The research was conducted on January 2015, in the waters of the Sungai Bela Estuary,Indragiri Hilir Regency, Riau Province. The research purposed was to define the habitatcharacteristics, vertical distribution, and analysis of correlation between habitat parameters andabundance of windowpane oyster (Placuna placenta). There were 4 stations and each stationdivided into 3 sampling points based on the depth, they were <2 meter, 2–4 meter, and >4meters. Results shown that good habitat characteristics for windowpane oyster was ontemperature of 27.77 0C, Total Suspended Solid on 24.33 mg/L, current speed on 0.02 m/s, pHon 7.87, salinity on 20.60/00, DO on 7.63 mg/L, BOD on 4.17 mg/L, Nitrate on 0.07 mg/L,phosphate on 0.05 mg/L, and organic on 30.07%. The highest abundance of windowpane oysterwas on station 4 (11.000 Ind/Ha). While in vertical term, the highest abundance was at <2meter depth. The distribution pattern of windowpane oyster was evenly at station 1 andclumped in station 2, 3 and 4. Result of correlation abundance of windowpane oyster effect oncurrent speed was r= -0.711, pH was r= 0.649, the abundance of phytoplankton was r= 0.688,and mud substrate was r= 0.535.
KARAKTERISTIK HABITAT DAN STRUKTUR POPULASI KERANG BAMBU (Solen lamarckii, Chenu 1984) DI ZONA INTERTIDAL DESA APIAPI KECAMATAN BANDAR LAKSAMANA KABUPATEN BENGKALIS Ulfa, Marya; Nasution, Syafruddin; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 25, No 3 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.3.184-193

Abstract

The study about habitat characteristics and population structure razor clam (Solen lamarckii, Chenu 1984) in intertidal zone Apiapi Village Bandar Laksamana District Bengkalis Regency conducted on January 2020. The purpose of this study was to analyze about habitat characteristics and population structure of razor clam and the correlation between substrate particle size and population density of razor clam. The habitat parameters measured include the physical and chemical parameters of sea waters. Determination of the station using purposive sampling method. Razor clam samples were collected by using a 1 x 1 m2 frame that laid along a transect. There were 4 plots and 3 subplots along the transect as replications. The result showed, the sediment tipe was sandy substrate, organic material was low, total suspended solid was high. Population density of razor clams was 3.3-23.3 Ind/m2. The distribution pattern of razor clams through each plot was uniform. While, the most common size of razor clam 5.04-5.62 cm. The correlation between particle size and population density of razor clam was strong.
The Effect of Changes in The Shoreline of The Sea Law Implementation in West Rangsang Subdistrict, Kepulauan Meranti District Siburian, Hendra Yosep; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 25, No 1 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.1.53-63

Abstract

Penelitian ini dilakukan pada bulan Oktober 2018 di Perairan Pantai Rangsang Barat, Kabupaten Kepulauan Meranti, Provinsi Riau. Penelitian ini bertujuan untuk mengetahui perubahan garis pantai yang  terjadi di Kecamatan Rangsang Barat dalam rentang waktu 10 tahun terakhir dan implementasi hukum laut tentang pengaturan permasalahan perubahan garis pantai di Kecamatan Rangsang Barat Kabupaten Kepulauan Meranti Provinsi Riau. Hasil pengolahan citra Landsat 5 dan Landsat 8 dengan besar Perubahan garis pantai di Desa Melai adalah 55,56 m (akresi), di Desa Kedabu Rapat sebanyak 50,94 m (abrasi) dan di Desa Bungur sebesar 42,10 m (abrasi). Implementasi hukum laut menurut pasal 15 UNCLOS 1982 dalam penetapan wilayah laut teritorial yang berdampingan dengan negara lain memutuskan uu no 2 tahun 1971 tentang penetapan batas wilayah kedua negara di Selat Malaka. Penentuan titik koordinat tersebut ditetapkan berdasarkan Garis Pangkal masing-masing negara. Dengan diberlakukannya Konvensi Hukum Laut Internasional 1982 sehingga ditetapkan Peraturan pemerintah Republik Indonesia no 38 tahun 2002 tentang daftar koordinat geografis titik-titik garis pangkal kepulauan Indonesia. Dengan penetapan titik koordinat geografis permasalahan pada perubahan garis pantai negara Indonesia dan Malaysia akibat dari abrasi dan akresi dapat diselasaikan dengan memperhatikan titik koordinat geografis pada pulau Rangsang.
Studi Abrasi Pantai Padang Kota Padang Provinsi Sumatera Barat Fajri, Ferli; ', Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 17, No 2 (2012)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.17.2.%p

Abstract

This reseach was conducted in March to April 2012, in Padang Beach ofWest Sumatra and in Integrated Oceanology Lab of Riau University. The aim ofthis research is to reveal the progress of abration happening in Padang Beach. Themethod used in this research is the survey one. The result of this reasearch showsthat abration happened at three research stations, the abration velocity at the firststation is 0,28 m/year, the second is 0,36 m/year and at the third one is 0,12m/year. The principle causes of abration process in Padang beach are the flow andthe great wave of the sea which signed by each characteristic and the flow that thebeach abrased easily, as the bigger of wave's energy and water's flow the faster ofabration will be.
Hubungan Karakteristik Sedimen dan Bahan Organik Sedimen dengan Kelimpahan Kerang Darah (Anadara granosa) di Perairan Tanjung Balai Asahan Provinsi Sumatera Utara Simanjuntak, Naomi; Rifardi, Rifardi; Tanjung, Afrizal
Jurnal Perikanan dan Kelautan Vol 25, No 1 (2020)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.25.1.6-17

Abstract

Penelitian ini dilakukan pada bulan Maret-April 2019 di Perairan Tanjung Balai Asahan Provinsi Sumatera Utara. Bertujuan untuk mengetahui ukuran partikel sedimen, mengetahui kelimpahan dan pola sebaran kerang darah (A. granosa), serta menganalisis pengaruh antara ukuran partikel sedimen dan bahan organik terhadap kelimpahan kerang darah (A. granosa). Sampel sedimen dan kerang darah diambil menggunakan Eckman grab dari 4 stasiun, disetiap stasiun terdiri dari 5 titik sampling. Hasil penelitian menunjukkan bahwa kondisi lingkungan perairan Tanjung Balai Asahan masih mampu untuk mendukung kehidupan kerang darah. Jenis sedimen di perairan ini adalah didominasi oleh lumpur berpasir. Diameter rata rata sedimen (Mz) 3-7,7Ø dengan klasifikasi pasir sangat halus-lumpu sangat halus. Nilai rata-rata kandungan bahan organik sedimen tertinggi terdapat pada stasiun 2 (13,70%) yang terletak di sekitar hutan mangrove yang termasuk dalam klasifikasi bahan organik sedang. Nilai rata-rata kelimpahan kerang darah (A. granosa) tertinggi terdapat pada stasiun 4 (54 ind/m2), dengan pola sebaran mengelompok di semua stasiun. Hubungan karakteristik sedimen dengan kelimpahan kerang darah (A. granosa) di perairan Tanjung Balai Asahan tergolong hubungan yang kuat dengan nilai koefisien determinasi (R2) sebesar 0,529. Artinya ukuran partikel sedimen 52,9 % mempengaruhi kelimpahan kerang darah (A. granosa) diseluruh stasiun sementara 41,7% sisanya dipengaruhi oleh faktor lain yang tidak diteliti. Hubungan kandungan bahan organik  dengan kelimpahan kerang darah (A. granosa) tergolong hubungan lemah, dengan nilai koefisien determinasi (R2) sebesar 0,004. Artinya kandungan bahan organik sedimen 0,4% mempengaruhi kelimpahan kerang darah (A. granosa) diseluruh stasiun sementara 99,6% sisanya dipengaruhi oleh faktor lain yang tidak diteliti
Abundance and Distribution Patterns of Gastropods in the Intertidal Bay of Kambang Lengayang Sub-District, Southern Coastal District, West Sumatera Harif, Ichwanul; Tanjung, Afrizal; Elizal, Elizal
Jurnal Natur Indonesia Vol 19, No 2 (2021): Oktober 2021
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.
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;