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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
Mapping of Flood Inundation and Eco-hydraulic Analyses to Minimize Flood Discharge in Tributaries Ziana, Ziana; Azmeri, Azmeri; Yulianur, Alfiansyah; Meilianda, Ella; Mubarak, Mubarak
Aceh International Journal of Science and Technology Vol 12, No 1 (2023): April 2023
Publisher : Graduate School of Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.12.1.31120

Abstract

Eco-hydraulic analyses begin with the arrangement of tributaries. This research aimed to minimize the discharge of flood run-off downstream by involving the community's participation in planting vegetation on the river border. An eco-hydraulic analysis is divided into two stages: calculating eco-hydraulic analysis on the existing border width and on the design border width of 100 m and calculating the inundation height and flow velocity. Minimizing flood discharge in tributaries is important because the maximum discharge in the downstream tributaries will affect the discharge in large rivers. The data needed are the cross-section of the river, the distance between the sections, Manning's roughness number, the return period flood discharge, and the river's slope. The integration between topographic maps, watersheds, and flood water levels can display areas potentially affected by inundation floods so that the flood inundation limits and flood inundation areas can be calculated. This research examined proper eco-hydraulics design so that it could reduce discharge, identify locations prone to flooding, and describe the magnitude of the flood impact quantitatively. Based on the study's results, it was found that the arrangement of river borders can provide benefits for flood control measures; this arrangement is the basis for determining river border lines. The results eco-hydraulic method obtained the design border width of 100 m, the condition before the existing river border arrangement was carried out, the inundation height was 0.30 1.13 m, and after the river border arrangement, the discharge could be reduced to 113.09 209 m3/s and the inundation height is 0 0.31 m. Based on the research results, it is known that border arrangements can provide benefits for flood control measures.
RELATIONSHIP BETWEEN CORAL REEF COVER CONDITION AND MEGABENTHOS ABUNDANCE IN PASUMPAHAN ISLAND, WEST SUMATRA Manik, Pilipus Fiter; Thamrin, Thamrin; Mubarak, Mubarak
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.386-390

Abstract

This study analyzes live coral cover, megabenthos abundance, and the relationship between coral reef condition and megabenthos abundance in Pasumpahan Island waters. The survey method was used to collect primary and secondary data. The results showed that the average percentage of live coral reef cover in Pasumpahan Island, West Sumatra, was 33.31%. The abundance of megabenthos obtained was 10,000 ind/ha. Regression results showed a strong positive correlation between coral reef cover and megabenthos abundance, with an R2 value of 0.5396, meaning that the percentage of live coral affects megabenthos by 53.96%.
ANALYSIS OF CHLOROPHYLL-α AND SEA SURFACE TEMPERATURE DISTRIBUTION USING SATELITE IMAGE TO ESTIMATE OF FISHING ZONES FOR YELLOWFIN TUNA (Thunnus albacares) IN WEST SUMATERA PROVINCE WATERS Arta, Fandi Handika; Mubarak, Mubarak; Nasution, Syafruddin
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

The potential of tuna in the waters of West Sumatra reaches 300,000 tons per year, and only 25% of its existing potential has been exploited. The existence of these fish can be determined by measuring the concentration of chlorophyll-α as an indicator of food sources in the waters and measuring sea surface temperature as an indicator of the fish environment, which can be done using remote sensing technology. This research was conducted from August 05 to September 29, 2022, using Aqua MODIS satellite imagery data. The results obtained during the study showed that the concentration of chlorophyll-α had an average of 2.01 mg/m3. The highest concentration occurred in the period 13-20 August 2022 with an average value of 3.17 mg/m3, and the lowest occurred in the period 06-13 September 2022 with an average value of 0.85 mg/m3. Sea surface temperature has a relatively similar value, which ranges from 29.5–30.8oC with an average of 30.5oC. Determination of the alleged fishing area for yellowfin tuna was carried out using the overlay technique by shading the area from chlorophyll-a criteria >0.1 mg/m3 with the sea surface temperature criteria of 29-30oC. The accuracy level of the yellowfin tuna fishing area estimation has an average accuracy of 28.7%. The highest accuracy value occurs from August 29 to September 05 2022, with a percentage of 69.8%, and the lowest occurs from August 13 to 20, 2022, with a rate of 3.9%.
DISTRIBUTION PATTERN OF TOTAL SUSPENDED SOLIDS (TSS) IN KAMPAR RIVER ESTUARY, PELALAWAN REGENCY, RIAU PROVINCE Melas, Febi Betania; Mubarak, Mubarak; Rifardi, Rifardi
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

The Kampar River Estuary is the main river in Riau province, which empties into the Malacca Strait and has a unique potential for research. The characteristics of the Kampar River Estuary are concurrent and have high tidal elevations, resulting in the occurrence of a Tidal Bore, which is referred to as Bono. The impact of sedimentation is generally quite detrimental, namely the siltation in several places, such as the waters of the Kampar River Estuary, which are dense areas of human activity. This study aimed to determine the relationship between hydrodynamic patterns, suspended solids' distribution pattern, and the concentration value of suspended solids distribution in the Kampar River estuary. This research method is surveyed and discussed descriptively. Current patterns affect the distribution of sediments in the Kampar River estuary. The TSS distribution pattern tends to follow the same direction as the movement of tidal currents where, during high tide, it tends to lead to the southwest of the Kampar River estuary, while during low tide tends to lead to the northeast and northwest, it this is because, in the Kampar River estuary, there is an island that makes the mouth of the Kampar River estuary V-shaped. Between hydrodynamic patterns and TSS distribution patterns, there is a moderate negative relationship (r = 0.50), which means that there is a significant influence between hydro patterns and TSS distribution patterns in the waters of the Kampar River estuary, between hydrodynamic patterns and TSS distribution patterns in the waters of the Kampar River estuary. The lowest value of TSS concentration in the waters of the Kampar River Estuary at high tide to low tide is Station 7, with a range of 102 mg/L, and the highest value at Stations 3, 4, and 9. At station 3, there are values ranging from 1756 mg/L; at Station 4, there are values ranging from 2823 mg/L; and at Station 9, there are values ranging from 1269 mg/L; the high concentration of TSS results in low brightness in the study area.
THE EFFECT OF THE INDIAN OCEAN DIPOLE (IOD) PHENOMENON ON OCEANOGRAPHIC PARAMETERS IN THE MALACCA STRAIT Claudya, Sonia Glory; Siregar, Yusni Ikhwan; Mubarak, Mubarak
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

The Indian Ocean Dipole (IOD) phenomenon is a phenomenon that occurs in the Indian Ocean due to differences in sea surface temperature anomalies between the Western Indian Ocean and Eastern Indian Ocean regions. This interaction produces high pressure in the Eastern Indian Ocean (South of Java and West of Sumatra) which causes the flow of air masses to blow westward. The IOD phenomenon affects oceanographic parameters such as sea surface temperature, salinity, currents, and sea level rise in Indonesian waters. The Malacca Strait is a very important waterway because it connects the Indian Ocean and the South China Sea (Pacific Ocean) so it is strongly influenced by the IOD phenomenon. This research was conducted from November 2022 - February 2023. Global data collection in this study was located in the waters of the Strait of Melaka and data collection for validation was carried out in the waters of North Rupat. This study uses data analysis using secondary data and primary data to validate the secondary data used so that it can prove that the global data in this study are accurate. The results of this study found that in the period 2013 - 2022, the range of sea surface temperature of the Malacca Strait is 27 - 32°C. The salinity of the Malacca Strait waters ranges from 32.54 - 33.49 ppt. The current speed in the Malacca Strait is classified as weak to strong with the direction of movement of the Malacca Strait ocean currents back and forth. The Malacca Strait waters have a mixed tidal type of double daily inclination with an F value of 0.6 cm. The sea level rise in the Malacca Strait ranges from 0.50 - 0.76 cm. The IOD phenomenon affects sea surface temperature, salinity, sea level rise, and current velocity depending on the IOD phase.
COMMUNITY STRUCTURE OF MACROZOOBENTHOS AS AN INDICATOR QUALITY OF COASTAL WATERS IN TANAH MERAH VILLAGE Kasmira, Febriyanti; Nasution, Syafruddin; Mubarak, Mubarak
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 conducted in January 2022 in the coastal waters of Tanah Merah Village and at the Marine Biology Laboratory and Marine Chemistry Laboratory, Department of Marine Science, University of Riau. The purpose of the study was to analyze the structure of macrozoobenthos communities in the coastal waters of Tanah Merah Village which includes the type, abundance, diversity, uniformity, dominance index, and similarity of communities. As supporting data in this study, several environmental parameters were also measured which included water quality, sediment type, and sedimentary organic matter content. The research method used is the survey method, where sampling using the squared transect method is carried out at 3 stations. Based on the results of the study found 13 species of macrozoobentos. A species that is found at all stations is Nerita articulate. The abundance of macrozoobenthos is 12,300 ind/ha. The diversity index value (H') of 1.42, indicates a moderate category, namely water quality is still maintained, a uniformity index (E) of 1.66, is classified as a high category, namely water quality is still supportive for macrozoobenthos life, the dominance index (C) 0.17, is included in the low category. In the community similarity index between I and II, 25% of types are not the same, inter-station I and III 43% of types are almost the same, and inter-station II and III 16% of types are not the same. Water quality parameters are as follows: temperature 27-29oC; salinity 30-31 ppt; pH 6-7; DO 3.6-7.6 mg /l. Sedimentary organic matter 4.47-23.53%, muddy sediment type. Based on the value of the aquatic quality biological index at the research site, it is still in good condition.
THE RELATIONSHIP BETWEEN NITRATE, PHOSPHATE AND ORGANIC MATERIAL CONCENTRATION TO PHYTOPLANKTON ABUNDANCE IN RUPAT ISLAND WATERS Tanjung, Doli Juni Setia; Amin, Bintal; Mubarak, Mubarak
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

Over time, Rupat Island has experienced very rapid development, marked by variousactivities such as plantations, agriculture, farming, and ecotourism activities which aregrowing rapidly. This study aims to determine the relationship between concentrations ofnitrate, phosphate, and organic matter on the abundance of phytoplankton in Rupat Islandwaters. The results showed that the average nitrate concentration was relatively high, rangingfrom 0.0993-0.1618 mg/L and the average phosphate concentration was around 0.0951-0.1571 mg/L. Furthermore, the concentration of organic matter in water ranged from 27.555-35.234 mg/L. The lowest abundance of phytoplankton was found in the Station II area with anaverage abundance value of around 416.67 cells/L, while the highest average abundance wasin the Station V area with an average value of 993.05 cells/L. The relationship between thecontent of nitrate, phosphate, and organic matter with the abundance of phytoplankton in theRupat Island area was insignificant or weak with a coefficient of determination (R2) of 8%,10.5% and 3.3%.
STRUCTURE OF THE BENTHIC EPIFAUNA COMMUNITY IN MANGROVE ECOTOURISM AREA IN PANGKALAN JAMBI VILLAGE, BUKIT BATU DISTRICT, BENGKALIS REGENCY Arniati, Dina; Efriyeldi, Efriyeldi; Mubarak, Mubarak
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

Benthic epifauna are animals that generally live in coastal waters such as sandy/muddy beaches, coral reef ecosystems and mangrove ecosystems. The purpose of this study was to analyze the structure of the benthic epifauna community in Mangrove ecotourism, Pangkalan Jambi Village, Bukit Batu District, Bengkalis Regency. This study uses a survey method. Epifauna community structure parameters taken include species, abundance, diversity, uniformity, and dominance. The environmental parameters measured included water quality, substrate type and total organic matter content of the sediment. The number of species found was 9 species from 2 classes, namely Gastropods and Malacostraca with the most dominant species found, namely the benthic epifauna species Cerithidea quadrata. The highest abundance of benthic epifauna species Cerithidia quadrata was 1.04 Ind/m2. Based on the ANOVA test with a significant value of 0.115> 0.05, it means that the preference of the betik epifauna between stations was not significantly different.
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