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All Journal Jurnal Teknologi Perikanan dan Kelautan Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Natur Indonesia Jurnal Perikanan dan Kelautan Berkala Perikanan Terubuk Jurnal Ilmu Lingkungan Jurnal Ilmu Perairan (Aquatic Science) Jurnal Online Mahasiswa (JOM) Bidang Perikanan dan Ilmu Kelautan Asian Journal of Aquatic Sciences Journal of Coastal and Ocean Sciences Journal of Rural and Urban Community Empowerment Dinamika Lingkungan Indonesia Jurnal Perikanan dan Kelautan Jurnal Perikanan Jurnal Perikanan Terapan Jurnal Natur Indonesia
Joko Samiaji
Universitas Riau
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Earth & Planetary Sciences Education Energy Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Physics Social Sciences

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Effect of Sediment Particle Sizes on The Density and Morphometrics of Seagrass Enhalus acoroides Leaves at Pandaratan Beach Tapanuli Tengah Banjarnahor, Novia; Samiaji, Joko; Nasution, Syafruddin
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): 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/

Abstract

This study was conducted in March - May 2020 at Pandaratan Beach Tapanuli Tengah with the aims in observing the size of the sediment particles, the density of Enhalus acoroides, the morphometrics of seagrass leaves, and to analyze the effect of the average sediment particle size on the density and morphometrics of the seagrass leaves. The study used a survey method. Study stations were choosen by purposive sampling and the samples were observed by using a transect line method. The results showed that the particle size ranged from 0.097 - 0.364 mm. The highest density was at Station II with fine sand categories with a value of 37.89 stands/m2 and the lowest density was at Station I with medium sand sediment particles with a value of 25.44 stands/m2. The longest leaves was found at Station II with a value of 84.09 cm and the shortest was at Station I with a value of 65.93 cm. The widest leaves of E. acoroides was at Station II with a value of 1.92 cm and the narrowest was at Station I with a value of 1.81 cm. Simple linear regression test showed that effect of the sediment partikel size on the density and morphometrics of seagrass leaves
Overview of Indicator Coral Fish in Poncan Islands, Sibolga, North Sumatra Pratama, Nanda; Samiaji, Joko; Thamrin, Thamrin
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): 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/

Abstract

This study aims to determine the effect of coral reef conditions on the abundance of coral reef fish indicators of the Chaetodontidae family and to be compared descriptively. This research was conducted in February-April 2020 in Poncan Island coast, Sibolga City, North Sumatra Province. The method used in this research was a survey method, the data obtained directly on site in the form of primary data, while the secondary data was collected from the related institutions and references. The method for quantifying the number of fish used was Underwater Visual Census (UVC), for collecting data on coral reef fish indicators was using the Line Intercept Transect (LIT) method supported by SCUBA (Self Contained Underwater Breathing Apparatus). The results showed that the abundance of coral reef fish indicators for the Chaetodontidae family and coral reefs were in the average of 0-0.052 individuals/m2. The lowest abundance was found at stations 1 and 5, while the highest abundance was seen at station 2 with an average of 0.0248 individuals/m2. The abundance of live coral ranged from 5 - 51.8%. The lowest abundance was at station 1 and the highest was at station 4 with an average abundance of 30.804% which is categorized as moderate. The abundance of indicator reef fish in the waters of Poncan Island was influenced by the condition of coral reefs where in this study the abundance of live coral reefs was less than 23.02%. There was no indicator reef fish at the station
Analysis of Potential Development of Bahari, Muara Nauli Beach, Central Tapanuli District, North Sumatera Province Kurnia, Fadly Agra; Samiaji, Joko; Yoswaty, Dessy
Journal of Coastal and Ocean Sciences Vol. 2 No. 1 (2021): 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/

Abstract

This research was conducted in November 2019 at Muara Nauli Beach, Central Tapanuli Regency, North Sumatra Province. With the aims to determine the potential of marine ecotourism at Muara Nauli Beach and its development strategy. The method used in this study was a survey method by collecting qualitative and quantitative data in the form of interviews, questionnaires and direct measurement. The research location was divided into 3 station points, namely Station I near the river estuary, Station II where swimming and relaxing activities are located, Station III is located at the location of tourist facilities. The results showed that the tourism suitability index, the suitability value for tourism activities at Muara Nauli Beach, were in the very suitable category (S1), with values ranging from 96.43-97.61% and an average value of 97.22%. This value was included in the very suitable category as ecotourism and can be used as marine ecotourism. Muara Nauli Beach has an attraction of natural beauty in the forms of white sand, turbid blue waters, spot for swimming activities. Muara Nauli Beach also has a large and beautiful estuary that can be used for fishing and a spot for taking pictures and viewing of the sunset. The natural beauty makes a great opportunity for Muara Nauli Beach to be developed as a marine ecotourism area
Morphology, Morphometrics, and Shark Conservation Status at TPI Sibolga City, North Sumatra Province Tatanagara, Muhammad Ilham; Amin, Bintal; Samiaji, Joko
Journal of Coastal and Ocean Sciences Vol. 3 No. 3 (2022): 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

Sharks are predatory animals that dwell near coral reefs and swim at the ocean's bottom. Since the inclusion of many shark species in CITES Appendix II status in 2013, shark groups have become a global issue. This is owing to shark fishing's high exploitation, both as a target capture and as bycatch. It is divided into eleven fisheries management areas, one of which is WPPNRI 572, according to the Regulation of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number 18/PERMEN-KP/2014 concerning the State Fisheries Management Area of the Republic of Indonesia, hereinafter abbreviated as WPPNRI. The Indian Ocean waters west of Sumatra, as well as the Sunda Strait, are included in this area. Because it faces the high seas, notably the Indian Ocean, Sumatra's west coast is a key area of the Indonesian sea. The city of Sibolga is strategically important as one of the key entry points for utilizing the potential of western Sumatra's waters. This study was place during August and September of 2021. The goal of this study was to identify sharks landed through TPI Sibolga City in North Sumatra Province, describe their morphology and morphometrics, and describe their conservation status using IUCN and CITES criteria. Squalus chloroculus, Nebrius ferrugineus, Carcharhinus brevipinna, Carcharhinus falciformis, Carcharhinus melanopterus, Carcharhinus sorrah, Rhizoprionodon acutus, Rhizoprionodon oligolinx, and Sphyrna lewini were among the 310 sharks successfully landed in the TPI, according to the study's findings. The overall length variable has the strongest tendency, according to the results of the Principal Component Analysis Scree Plot. C. brevipinna, C. falciformis, C. melanopterus, C. sorrah, and T. obesus are shark species with comparable morphometric features. According to the IUCN, the conservation status of S. lewini is Critical or Threatened (EN). The status of N. ferrugineus is Very Vulnerable (VU). Near Threatened (NT) status for S. chloroculus, C. brevipinna, C. falciformis, C. melanopterus, C. sorrah, and T. obesus. Less Worrying Status was assigned to R. acutus and R. oligolinx (LC). While the trading status of sharks based on CITES, particularly C. falciformis, C. melanopterus, and S. lewini, are included in the Appendix II list, which denotes species that are not threatened with extinction but could be affected if trade continues without regulation.
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
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
POTENTIAL FOR MARINE ECOTOURISM DEVELOPMENT AT SUNUA BEACH PARIAMAN CITY WEST SUMATERA PROVINCE Ikhsan, Miftahul; Samiaji, Joko; Nasution, Syafruddin
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.7.2.232-239

Abstract

ABSTRACT Produces economic benefits for people in the area and the surrounding area. The tourism potential of Sunua Beach is not yet known from scientific studies. The lack of information regarding this research location means that many foreign tourists need to learn about this tourist location. The research was conducted in February-March 2024 at Sunua Beach, Pariaman City, West Sumatra Province. The study aims to identify the potential and objects that need to be developed at Sunua Beach as a marine ecotourism area, to determine public perceptions, and to formulate a strategy for developing marine ecotourism to support sustainable tourism. The method used in research is a survey method. The placement of station points was carried out using the purposive sampling method. The water quality measurements were observed by temperature, brightness, salinity, pH, current speed, water depth, and beach slope. The selection of respondents each consisted of 15 tourists, 15 local communities, 10 business actors, and 10 policymakers. Based on the tourism suitability index, Sunua Beach is included in the S1 category (very suitable) with tourist suitability index values of 83.97%, 86.53%, and 83.97%, respectively, on SWOT analysis through observation and identification of various factors in the field, the results obtained a member of strengths, weaknesses, opportunities and threats at Sunua Beach. The results of the analysis will
COMMUNITY STRUCTURE of EPIZOIC DIATOM Pinna muricata AT SEAGRASS ECOSISTEM IN PANDARATAN BEACH TAPANULI TENGAH REGENCY NORTH SUMATRA PROVINCE Dalimunthe, Salmi Patima; Samiaji, Joko; Siregar, Sofyan Husein
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

This research was carried out in March 2022; the location of this research is Pandaratan Beach, Tapanuli Tengah Regency, North Sumatra Province. The purpose of this study was to determine the abundance, relative abundance, diversity index, dominance index, and uniformity index of epizoic diatom species in Pinna muricata in the seagrass ecosystem of Pandaratan Beach. The method used is a survey method, using three sampling points to take p.muricata, the determination of 3 sampling points based on the density of the seagrass ecosystem. Sampling of diatoms was carried out by scraping the surface of the shells 5 cm wide, on the right and left backs of the shells. The diatom samples obtained were then analyzed in the laboratory. There were 12 types of epizoic diatoms found, consisting of Amphora sp, Bacillaria sp, Cyclotella sp, Cymbella sp, Isthmia sp, Melosira sp, Navicula sp, Nitzschia sp, Pinnularia sp, Skeletonema sp, Surirella sp, Synedra sp. the average value of epizoic diatom abundance on the shells of Pinna muricata ranged from 2.711,28–4.617,84 ind/cm2, the average value of the diversity index (H') of epizoic diatoms ranged from 1.43-2.50. The mean value of the dominance index (D) is in the range of 0.26 to 0.92. The average value of the uniformity index (E) ranges from 0.40-0.70.
INVENTORY OF SEA CUCUMBER SPECIES (Holothuroidea) IN THE WATERS OF PANDARATAN BEACH SARUDIK DISTRICT, CENTRAL TAPANULI REGENCY, NORTH SUMATRA Panggabean, Iis Apriati; Samiaji, Joko; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 4 No. 3 (2021): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Pandaratan Beach is one of the beaches located in Central Tapanuli Regency, North Sumatra. Pandaratan Beach has a diverse potential of biological resources namely mangrove ecosystems, seagrass ecosystems, and coral reef ecosystems. Sea cucumbers are among the potentials in the beach.This research was conducted in February 2021. The purpose of this study is to find out the type, abundance and diversity of sea cucumbers in the waters of Pandaratan Beach. The method used was the survey and for the determination of the observation location was determined by purposive sampling. The results showed that 1 genera and 3 species of sea cucunbers were found, namely Holothuria scabra, Holothuria atra, and Holothuria leucospilota. The abundance of sea cucumbers ranged from 444 – 800 ind/ha.The highest relative abundance was found in the found in the species of Holothuria leucospilota at station I with a percentage of 66.67%. The sea cucumber diversity index ranged from 0.6515 - 1.1955.
ABUNDANCE OF CORAL FISH SPECIES AND THE CONDITION OF CORAL REEFS IN THE WATERS OF THE TIKUS ISLAND, BENGKULU CITY Paniska, Almaarif; Samiaji, Joko; Thamrin, Thamrin
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

Coral reefs are one of the ecosystems that have ecological functions for marine life, one of which is reef fish. Coral fish are marine biota that live in association with coral reefs. This study aims to determine the abundance of reef fish, the condition of coral reefs and the relationship between abundance of reef fish and coral reefs. This research was conducted in June 2019 in the waters of Tikus Island, Bengkulu City. The method used is a survey method. Data collection on reef fish was carried out using the Underwater Visual Census (UVC) method and coral reefs condition data colletion is done using the Line Intercept Transect (LIT) method. The abundance of reef fish found at the study site averages in the abundant category. At station I, an abundance of reef fish was 2,18 ind/m2, at station II it was 4,18 ind/m2, and at station III it was 1,27 ind/m2. While the average condition of coral reefs at the study site is include in the medium category. At station I, the percentage of live coral cover was 39,30% or include in the medium category. At station II, the percentage of live coral cover was 50,94% or include in the good category. And at station III, the percentage of live coral cover was 46,32% or include in the medium category. Coral fish and coral reefs have a fairly close relationship. Reef fish use coral reefs as a place to find food, shelter and spawn or breed.
Co-Authors ', Marini Abd. Rasyid Syamsuri Afrizal Tanjung Ahmad Saripuddin Akbar, Aidil Rahmad Algino Panuntun Akbar Andi Febrian, Andi Anggi Irfan Hasibuan Anne Rumondang Aras Mulyadi Ardi Gunawan Siregar Aslim Rasyad Asmika Harnalin Simarmata Ayu Agustina Banjarnahor, Novia Bethanya, Ela Nanda Bintal Amin Chaniago, Rizki Dalimunthe, Salmi Patima Desmarina, Y. Despela, Despela Dessy Yoswaty Dewi Ariana Dodi Tri Putra Sitompul Efriyeldi, Efriyeldi Elfis Suanto Elizal, Elizal Enjelina Maria Magdalena Manurung Enny Herawaty Simamora Erwan Efendi Fani Fadli Femi Riza Fitria Wahyuni Fitriansah, Heru Fuady, Muhammad Ikhram Fuady Ikhram Fuah, Ricky Winrison Ghina Salsabila Ginting, T.B. Hafli, R. Diddin Mifdhol Hari Mulyadi, Hari Hasibuan, Ari Permel Hendra Kharisma Huda, Mhd. Aidil Huda, Muhammad Aidil Hutabarat, Muharriswan Ikhsan, Miftahul Ilham Ilham Ilman, Muhammad Khairi Imron Imron Irvan Dwi Putra Irvina Nurachmi Irwan Effendi Kurnia, Fadly Agra Lase, Wanda Fernanda Maizaldi, Maizaldi Manalu, Lili Yanti Manurung, Enjelina Maria Magdalena Marpaung, Bertaulina Mei Fita Asri Untari Merry Sintya Dewi Mery Mery Mhd Aidil Huda Mifdhol Hafli, Raja Diddin Mubarak ' Muhammad Alam Mulia Hasibuan Muhammad Isnan Alindra Muhammad Razali Muhammad Sabirin Muhammad Wahyu Hasibuan Musrifin Galib Musrifin Ghalib Nababan, Bastian Vepry Odynata NANDA PRATAMA Nasution, Muhammad Rasid Nora Sartika Pohan Nur Azizah Nursamsi Nursamsi Nursyirwani, Nursyirwani Panggabean, Iis Panggabean, Iis Apriati Paniska, Almaarif Putra ' Putra, Jefri Eliyas R. Diddin Mifdhol Hafli Rahayu, Rosi Rahim, Mustafa Rahmad Febriyandi Rahmita, R. Raja Siagian Ramadhan, A.R Ramadhan, A.R. Reny Cristina Naibaho Rifardi Rizki, A. Rumondang, Anne Ruth Natalia. S Sabirin, Muhammad Said Nazman Arif Salsabila, Ghina Sari, D.J. Saul Heryanto H.N Shofian Nanda Adiprayoga Sihaloho, Indra Y P Simamora, Enny Herawati Sinaga, Merisa Debora Sinaga, Nella Asima Br. Sitompul, Dodi Tri Putra Sitompul, Krivide Sitorus, Kornelius K Sofyan H. Siregar Sofyan Husein Siregar Sri Ratna Hidayati Sunarti ' Syafruddin Nasution Tatanagara, Muhammad Ilham Thamrin Thamrin Thamrin Thamrin Wahid Wahid Wahyudi Wahyudi Windarti Windarti Windarti Windarti Yanasari, Nurry Yanti, D.H. Yuke Constina Zientika, Zientika Zulkifli ' Zulkifli Zulkifli Zulkifli Zulkifli