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Journal : Journal of Coastal and Ocean Sciences

Tidal and Bathymetry Characteristics in Dumai River Estuary in Dumai City, Riau Province Maulana, Fariz; Mubarak, Mubarak; Rifardi, Rifardi
Journal of Coastal and Ocean Sciences Vol. 5 No. 3 (2024): 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/jocos.5.3.151-158

Abstract

This research was carried out in July 2023 in Muara Sungai Dumai, Dumai City, Riau Province. This study aims to conduct depth mapping analysis using echosounders based on reference corrections to tides. Tidal analysis is performed to determine reference values such as MSL (Mean Sea level) and tidal characteristics. The methods used are survey methods and quantitative analysis. The results showed that the waters of the Dumai River Estuary were mixed tide prevailing semi-diurnal with a formzahl value of 0.29. There is tidal asymmetry with the time to the high tide faster than the time to low tide. The depth ranges from 0.28 to 7.34 m, increasing to 40 m in the Rapat Strait. The weak current and the difference in HHWL values of 3.55 m and MSL 0.14 m affect water level rise due to bathymetric changes at high tide
Analysis of Marine Ecotourism Suitability Based on Physical Environmental Conditions and Water Quality Index at Arta Sungai Limau Beach, Padang Pariaman Regency Livi, Aldisa Sipti; Mubarak, Mubarak; Yoswaty, Dessy
Journal of Coastal and Ocean Sciences Vol. 5 No. 3 (2024): 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/jocos.5.3.159-165

Abstract

Marine ecotourism is a type of tourism that involves activities related to marine activities carried out under or above the sea surface. Marine ecotourism generally covers three areas: the sea surface, under the sea, and on the coast. Marine ecotourism activities, especially beach tourism, are highly dependent on the condition of the oceanographic parameters of the region for the safety and comfort of tourists. This research was conducted in Arta Beach, Padang Pariaman Regency, West Sumatra Province, to determine the suitability of marine ecotourism at Arta Beach based on the parameters of physical environmental conditions. This study used a survey method: observation and data collection at the research location. Data analysis is used for the Tourism Suitability Index (IKW) method for physical environmental parameters and the STORET method for water quality parameters. The results of this study indicate that the tourism suitability index based on the physical condition of the environment carried out at Arta Beach at station 1 received a value of 2.49, including the suitable category, at station 2 received a value of 2.5, including the suitable category and station 3 received a value of 2.49 including the suitable category. The overall average value of IKW on Arta Beach is 2.49, included in the suitable category. This value means this beach can be used for beach ecotourism. Water quality parameters are analyzed using the storey method. The data obtained from the pH, DO salinity, and temperature parameters meet the quality requirements (good condition) and are suitable for marine tourism activities
Study of Fishing Ground Determination Based on Chlorophyll-a Distribution in Sibolga Waters using Aqua Modis Satellite Pasaribu, Parlin S; Mubarak, Mubarak; Galib, Musrifin
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/jocos.2.1.61-65

Abstract

This study aims to determinate the fishing ground, based on chlorophyll-a distribution in Sibolga marine waters every month throughout 2019 using Aqua Modis Satellite. The method used in was survey method and room analysis method to know directly of fishing ground determined by fisherman and to analysed satellite aqua modis imagery. The water quality measurements were carried out to describe of general conditions research area. The parmeters measured include water temperature, water transparency, salinity, ph, depth and current. Sibolga sea surface temperature ranges from 26-300C, water transparency ranges from 170-210 cm. water salinity ranges between 26-29 ppt, the degree of acidity (ph) ranges from 6,8-8. The depth ranges from 15-22 m,  and current velocity 0.21-0.40 m/s. Based on the results it is known that the chlorophyll-a concentration a ranges from 0.001 to 5,000 mg/m3. Highest chlorophyll-a concentration occurs in October with a range of 3,500 to 5,000 mg/m3, while the lowest chlorophyll-a concentration occurred in February with a range 0,001 to 0,500 mg/m3. Based on the chlorophyll-a average troughout the year the potential for fishing ground is in Sorkam and Kolang water
Sea Surface Temperature Distribution Mapping and the Relation with Coral Reef Distribution Using Modis Aqua Imagery in the Waters of Padang City Noprianda, Renza; Mubarak, Mubarak; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 5 No. 3 (2024): 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/jocos.5.3.143-150

Abstract

Mapping sea surface temperature and coral reef distribution is vital for understanding the marine environment's dynamics and developing effective conservation strategies. The ideal temperature for coral reefs is between 27-29ºC. This research aims to describe and analyze the relationship between sea surface temperature and chlorophyll-α to the potential zone of coral reefs in Padang City, West Sumatra. The data used in this research is MODIS Aqua level 3 imagery data with 4 km resolution. The imagery processing stages include imagery data processing using SeaDAS software, namely the cropping and reprojection process, and ArcGIS software, namely the interpolation and classification process and map layouting. The results showed that the classification of the distribution of sea surface temperature in Padang City ranged from 26-29ºC, and the average concentration of chlorophyll-α distribution was 1.41 mg/m3. Based on these results, it can be concluded that Padang city waters have an ideal sea surface temperature for coral reefs and are supported by a reasonably high chlorophyll-α concentration.
Tidal and Bathymetry Characteristics in Dumai River Estuary in Dumai City, Riau Province Maulana, Fariz; Mubarak, Mubarak; Rifardi, Rifardi
Journal of Coastal and Ocean Sciences Vol. 5 No. 3 (2024): 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/jocos.5.3.151-158

Abstract

This research was carried out in July 2023 in Muara Sungai Dumai, Dumai City, Riau Province. This study aims to conduct depth mapping analysis using echosounders based on reference corrections to tides. Tidal analysis is performed to determine reference values such as MSL (Mean Sea level) and tidal characteristics. The methods used are survey methods and quantitative analysis. The results showed that the waters of the Dumai River Estuary were mixed tide prevailing semi-diurnal with a formzahl value of 0.29. There is tidal asymmetry with the time to the high tide faster than the time to low tide. The depth ranges from 0.28 to 7.34 m, increasing to 40 m in the Rapat Strait. The weak current and the difference in HHWL values of 3.55 m and MSL 0.14 m affect water level rise due to bathymetric changes at high tide.
Analysis of Marine Ecotourism Suitability Based on Physical Environmental Conditions and Water Quality Index at Arta Sungai Limau Beach, Padang Pariaman Regency Livi, Aldisa Sipti; Mubarak, Mubarak; Yoswaty, Dessy
Journal of Coastal and Ocean Sciences Vol. 5 No. 3 (2024): 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/jocos.5.3.159-165

Abstract

Marine ecotourism is a type of tourism that involves activities related to marine activities carried out under or above the sea surface. Marine ecotourism generally covers three areas: the sea surface, under the sea, and on the coast. Marine ecotourism activities, especially beach tourism, are highly dependent on the condition of the oceanographic parameters of the region for the safety and comfort of tourists. This research was conducted in Arta Beach, Padang Pariaman Regency, West Sumatra Province, to determine the suitability of marine ecotourism at Arta Beach based on the parameters of physical environmental conditions. This study used a survey method: observation and data collection at the research location. Data analysis is used for the Tourism Suitability Index (IKW) method for physical environmental parameters and the STORET method for water quality parameters. The results of this study indicate that the tourism suitability index based on the physical condition of the environment carried out at Arta Beach at station 1 received a value of 2.49, including the suitable category, at station 2 received a value of 2.5, including the suitable category and station 3 received a value of 2.49 including the suitable category. The overall average value of IKW on Arta Beach is 2.49, included in the suitable category. This value means this beach can be used for beach ecotourism. Water quality parameters are analyzed using the storey method. The data obtained from the pH, DO salinity, and temperature parameters meet the quality requirements (good condition) and are suitable for marine tourism activities
Condition of Coral Reefs and Abundance of Coral Fishes of the Chaetodontidae Family in the Waters of Sironjong Gadang Island, Pesisir Selatan District, West Sumatra Province Satyawira, Immanuel Grahan Deyon; Thamrin, Thamrin; Mubarak, Mubarak
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.5.1.7-16

Abstract

Sironjong Gadang Island is one of the islands in the Mandeh Tourism area in Pesisir Selatan Regency, West Sumatra, Indonesia. One of the ecosystems affected by tourism activities is coral reefs. Monitoring the coral reefs' condition and the abundance of coral fish in the Chaetdontidae family is carried out to find out this. This research uses survey research methods. The temperature measurement results obtained an average of 30.2oC, current speed measurements received an average of 0.12 m/s, salinity measurements obtained an average of 30 ppt, and brightness measurements show that the brightness of these waters is 9 m. Tide measurements in the waters of Sironjong Gadang Island, carried out on March 7–8, 2023, are double daily tides (semi diurnal tide). Then, the results from the coral reef cover of Sironjong Gadang Island waters obtained a percentage ranging from 2.34 - 12.83%, with an average rate of live coral reef cover of 5.96%, which is included in the poor category. Furthermore, the results at each research station in the waters of Sironjong Gadang Island showed that 54 coralfish individuals were found, with the number of coralfish at each depth ranging from 4 - 10 individuals. The most common types of coral fish are species. Acuminate had 18 individuals; the fewest types of coral fish found were Chaetodon trifasciatus and C. tristichous, each numbering two individuals. There is a solid relationship between live coral reef cover and the abundance of coral fish in the Chaetodontidae family, where live coral reef cover influences the plenty of coral fish by 61.11%, which means that the higher the percentage of live coral cover, the higher the value of coral fish abundance.
Seasonal Current Circulation Patterns in the Waters of the Malacca Strait Afrianti, Novia Muja; Mubarak, Mubarak; Wibowo, Muhammad Arief
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

The Malacca Strait is a water that connects the Indian Ocean and the South China Sea (Pacific Ocean). The Straits of Malacca is the busiest waters because it is filled with activities in and out of ships, fishing activities, ecotourism, and community sea transportation. These activities significantly affect the condition of the waters in the Malacca Strait. Water conditions are greatly affected by oceanographic parameters. One of the most critical parameters is currents. This ocean current is a horizontal movement of water masses influenced by other oceanographic factors. This research was conducted in June - July 2022. This study aimed to determine the pattern of current circulation, direction, and speed of currents as well as sea level during conditions at full moon (highest tide) and new low tide (Lowest tide) each month and every season in the Straits of Malacca. The method used in this research is descriptive quantitative, where numerical data is collected to support the formation of numerical models such as wind, tidal, and bathymetry data. Numerical modeling is a function of the software to determine the pattern of current movement based on the data used. Based on the four seasons (West Season, Transition I, East, and Transition II) at high tide. The highest current speed ranges from 0.02 to 2.07 m/s, while at high tide, the highest current speed ranges from 0.03 to 2.58 m/s.
Identification of Microplastics Types and Abundance in Mussels (Glauconome virens) from Tanah Merah Coastal Waters Meranti Island, Riau Alwi, Ahmad; Amin, Bintal; Mubarak, Mubarak
Journal of Coastal and Ocean Sciences Vol. 6 No. 2 (2025): 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.6.2.78-83

Abstract

This study aims to analyze the types and abundance of microplastics in mussels (Glauconome virens) and differences in the abundance of microplastics between research stations in the coastal waters of Tanah Merah Village, Meranti Islands. Samples were taken from three different locations: residential areas, fishing ports, and mangrove areas. The number of mussel samples from the three stations was 54 individuals, with three size groups. Water quality parameters such as temperature, salinity, pH, and current speed were measured to determine the condition of the aquatic environment. Microplastics were analyzed using a microscope after going through a process of dissolving the mussel meat with a 10% KOH solution. The results showed that three types of microplastics were found, namely fiber, fragments, and films, with an average value of 46.50 particles/ind. Fiber type was the highest type found, followed by fragments and films. The highest abundance of microplastics was found in the mangrove area with an average value of 54.11 particles/ind, while the lowest was in the fishing port with 37.61 particles/ind. The abundance of microplastics in mussels showed significant differences (p<0.05) within the station. Possible causes of the difference were discussed
Types and Abundance of Beach Litter on the East Coast of Karimun Island, Riau Islands Ranti, Putri; Amin, Bintal; Mubarak, Mubarak
Journal of Coastal and Ocean Sciences Vol. 6 No. 2 (2025): 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.6.2.65-70

Abstract

This research was conducted in January 2025 on the East Coast of Karimun Island, Riau Islands Province. This study aimed to determine the type and abundance of Beach Litter on the East Coast of Karimun Island, Riau Islands Province. The method used in this research is a survey method with direct observation and data collection at the research location. The waste data obtained was analyzed statistically, and then the results were presented descriptively, referring to the supporting literature. The most dominant type of waste is plastic-type at Station I (Coastal Area), and the last type of waste obtained is rubber-type at Station II (Ketam Beach), for the results of the highest abundance between stations is found at Station I, namely 7,12 units/m² and the lowest abundance at station II, namely 0,84 units/m². In comparison, the abundance results between sampling times obtained the highest abundance during the Weekend of 19,48 units/m² and the lowest abundance during Weekday of 11,88 units/m². Based on the difference test of abundance between stations and between sampling times, there is a real or significant difference (P <0,05)
Co-Authors . Azmeri, . A.A. Ketut Agung Cahyawan W AA Sudharmawan, AA Abdullah Abdullah Afrianti, Novia Muja Afrizal Tanjung Agus Mandar, Agus Agus, Suci Tiara Agusti, Dinda Roanna Ahmad Rifai Ahmad, Alianisa Alchamdani Alfa Taras Bulba Alfajri, Alfajri Alfiansyah Yulianur BC Alhuda, Nafisah Alwi, Ahmad Aminuyati Andrikasmi, Sukamarriko Andrina, Hanifaturrahmi Anni Zahara Putri Apriliani, Mumut Apriyanto, Apriyanto Aras Mulyadi Arfan Arfan Arifudin arifudin Arimaswti Arimaswati Aris, Pajri Armanda, Armanda Arniati, Dina Arta, Fandi Handika Aulia Kesuma, Putra Badia, Esti Bambang Bambang Basiluddin, Fadhlan Bintal Amin Butarbutar, Yesenia Nancy Olivia Chasanah, Iimmatul Claudya, Sonia Glory Cut Zukhrina Oktaviani Darwis, Darnita Dessy Yoswaty Djaimi Bakce Efriyeldi, Efriyeldi Eldina Fatimah Elizal, Elizal Ella Meilianda Elsa Eka Putri Emilda Firdaus Emmi Bujawati Erwin Lingga Fachrurrazi Fachrurrazi Fachrurrazi Fachrurrazi Fachrurrazi Fachrurrazi Fadhila, Mahdia Fadhliyah Malik Fahira, Adhita Fiky Fathurrahman, Febri Firdayana, Sunita Fitiansyah, Aidil Gisya, Gina Gunawan Mahara Habibullah, Ridwan Hade Mulyadi Hafizhah, Hafizhah Haiqal, Muhammad Rafi Hajri, Waode Syahrani Halid, Nur Hatidjah Awaliyah Halid, Zulkifli Halik, Halik Hanies Ambarsari Harianja, Ronitua Saut Marito Hawari, Naufal Humairah, Aqiilah Tun Humayra, Siti I Made Bayu Anggara Ibdayanti, Dinda Rizka Ilham Ilahi Ilyas Y, Muhammad Ilyas Y., Muhammad - imadduddin, Imadduddin Indalifiany, Astrid Irma Irma Irmawati Irmawati Irvina Nurachmi Irwan Irwan Jabbar, Asriullah Jahwara, Ibnu Habib Juwita, Diana Kasmira, Febriyanti Khairunnisa, Nisrina Lasaima, Hasyiatul Rahmi Livi, Aldisa Sipti Lubis, Abdillah M. Farid Akbar Elzam Maatitawaer, Natasya Debora C Mahara, Gunawan Mahmuddin Mahmuddin Mahmuddin Mahmuddin Mahmuddin, Mahmuddin - Manik, Pilipus Fiter Mariatul Kiftiah Maulana, Fariz Maulanda, Irfan Maulina, Febriyanti Medyan Riza Mega Yunita Mei Fita Asri Untari Melas, Febi Betania Merian, Rena Dian Misnah, Siti Muhammad Andika Prakarsa Muhammad Isya Muhammad JAMIL Muhammad Zainal Abidin musfichin, musfichin Muslifah, Wa Ode Musrifin Galib Musrifin Ghalib Mustaqim Mustaqim, Mustaqim Nabilla, Lulu Nabilla, Lulu Mayna Nadeak, Paulinus Nainggolan, Robby Nasrudin Neni Hermita Ningsi, Nadila Puspita Nirwati, Andi Noprianda, Renza Novia Dewi Novriadi, Yoga Nurhadi Hodijah Nurhikma, Nurhikma Nurman Said Nursyirwani, Nursyirwani Nurul Malahayati Nurul Malahayati Pahmiah, Pahmiah Pasaribu, Parlin S Pascayantri, Asniar Pinta Sari Pradana, Hangga Prakarsa, Muhammad Andika Prayitno, Betari Erlinda Puspita, Devi Putra, Agus Kuniawan Qur’ani, Qur’ani R, Nurcahyani Pratiwi Radiyah, Isna Rahmadani Rahmadani Rahman Rahman RAHMAT MULIADI, RAHMAT Rahmat, Aan Nur Rahmawati, Riski Ramadhan Tosepu Ramadhan, Alif Ridho Ramadhan, Fauzi Rambe, Pahala Roy Ranti, Putri Rasak, Adriatman Rasyid , Wa Ode Riaataun Hajrah Reja Pahlevie, Ricky Ridwan Manda Putra Rifaldi Rifaldi, Rifaldi Rifardi Rifa’atul Mahmudah Rizky Triananda Rosmeydar, Rosmeydar Rusli, Nirwati Sadarang, Rimawati Aulia Insani Said Fachreza Saidy, Emily Nur Saiful Husin Saiful Husin Sakti Hutabarat Salem, Sri Rahayu Saltar, Laode Sari Mastura, Cut Annisa Widya Satyawira, Immanuel Grahan Deyon Setiawan, Laode Wawan Seven, Diko Alafchan Shabrina Hilal, Iin Shanty Komalasari, Shanty Shorea Khaswarina Sinaga, Ogesnain Sinaga, Rugun Sipahutar, Alan Nuari Sitorus, Gideon Dody Tama Situmorang, Ally Wibowo Sofia Anita Sofyan H. Siregar Sofyan Husein Siregar Solo, Dian Munasari Sriwanita, Capra Suhadi Suhadi Sulsiah, Sulsiah Susanty, Sry Sutikno, Sigit Syafruddin Nasution Syahrir, Sukfitrianty Syaiful Hadi Syarif Hidayatullah Syarif, Wilman Syarifuddin Syarifuddin Tanjung, Doli Juni Setia Tengku Nurhidayah Thamrin Thamrin Tri Yolanda Ariska Tripoli Tripoli Ulva, Sitti Marya Vikri, Ahmad Vivi Oktaviani wahyuni wahyuni Wardi, Roni Wati, Reza Ambar Widuri, Falsabila Y, Muhammad Ilyas Yasmin, Siti Zalika Yuldiati, Memi Yulia Hairina Yulia Hayati Yunia Shofiasti Yusmini, Yusmini Yusni Ikhwan Siregar Yusria Darma Zahra, Nurul Ziana, Ziana Zulfahnur, Zulfahnur Zulhamid Ridho Zulkifli Zulkifli Zulkifli, Munirah