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Gedung Marine Center (Lt 2) Jurusan Ilmu Kelautan, Universitas Riau Kampus Bina Widya, Jl. HR. Soebrantas Km. 12,5 Panam, Pekanbaru, Indonesia-28293
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INDONESIA
Journal of Coastal and Ocean Sciences
Published by Universitas Riau
ISSN : 27454355     EISSN : 27464512     DOI : -
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Environmental Science Immunology & microbiology Physics
Journal of Coastal and Ocean Sciences is a journal publishes scientific articles from research by lecturers and other researchers in the marine sector. Covers aspects of biology, physics and chemistry, both for brackish waters (mangrove swamps, river estuaries) and marine waters (coastal and offshore seas).
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 293 Documents
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Analysis of Shoreline Changes in the Coastal Area Between Batang Anai Estuary and Batang Mangur Estuary West Sumatra Province Fairuzia, Putri Marwah; Rifardi, Rifardi; Siregar, Sofyan Husein
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 study aimed to determine the rate of change of the coastline and the effect of sedimentation processes, currents, and waves on the coastline in the coastal area between Batang Anai Estuary and Batang Mangur Estuary, West Sumatra Province. End Point Rate (EPR) is a method that can be used to calculate the rate of change of coastline by displaying transects according to their categories (high abrasion, medium abrasion, low abrasion, stable, and accretion). In 1993–2023, there was a change in the coastline in the form of abrasion, which reached ±150 m with a change rate of ±1.63 m/year. The abrasion at the research station is classified into high, medium, and low categories. Accretion also occurs in the area around the research station, and some areas do not experience significant changes or remain in a stable condition. Currents in the coastal area between Batang Anai Estuary and Batang Mangur Estuary, Padang Pariaman Regency, are included in the slow-moderate category with an average value of 0.19-0.28 m/s. Wave height is included in the low–low category with an average value of 0.1–0.58 m. Although currents and wave heights are included in the low category, some areas lacking coastal vegetation and no breakwaters can experience abrasion and accretion.
Analysis of Physical Hydro-Oceanographic Factors for Abrasion at Pasir Jambak Beach, Padang City, West Sumatra Province Athhary, Dhiva Danaya; Rifardi, Rifardi; Elizal, Elizal
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

Abrasion is a common problem in coastal areas. This is due to natural factors that influence the phenomenon of abrasion in a coastal area, including the hydro-oceanographic processes that take place in the sea. Pasir Jambak Beach is one of the beaches in Padang City that is experiencing worrying abrasion. Therefore, it is necessary to research the analysis of physical hydro-oceanographic factors for beach abrasion. This survey was conducted in February - April 2023 at Pasir Jambak Beach. This study aimed to determine the degree of abrasion and its relationship to the hydro-oceanographic physics of the beach. The method used is survey and purposive sampling. The data obtained were tabulated and descriptively quantitatively analyzed by multiple linear regression. The results showed that the beach experienced a dominant abrasion process in the period 1995-2023 compared to accretion with an abrasion rate of 77.94%. The highest average wear rate occurred in 2019-2023 of 3.86 m/year and the lowest in 2003-2007 of 1.9 m/year. Physical hydro-oceanographic factors at Pasir Jambak Beach have a significant influence on the abrasion phenomenon that occurs.
The Relationship between the Organic Material Content of Sediments and the Abundance of Macrozoobentos in Saruang Sakin Beach, Sungai Nyalo Village, West Sumatra Province Afdol, Muhammad; Nedi, Syahril; 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 conducted in June 2022 in the coastal area of ​​Saruang Sakin, Sungai Nyalo Village, West Sumatra Province. This study examines the relationship between sediment organic matter content and the abundance of macrozoobenthos. The method used in this study is the survey method, in which samples will be taken directly at the research location, sediment sampling using a pipe with a size of 10 cm and a length of 70 cm, and macrozoobenthos samples taken directly by hand and a shovel in a plot with a size each plot 1 m x1 m, to see the relationship between the organic matter content of the sediment and its abundance, a simple linear regression test was carried out. Sediment samples were analyzed in the marine chemistry laboratory, and macrozoobenthos samples were analyzed in the marine biology laboratory. This study's results indicate that the sediment's organic matter content ranges from 1.03% - 4.30%. The abundance of macrozoobenthos between study stations obtained an average abundance value of 3.44-5.89 ind/m². The simple linear regression test results obtained a correlation value of 0.092 with a coefficient of determination of 0.1 and a significance value of 0.942
Identification of Inorganic Waste in the Mangrove Ecosystem in Wara Timur and Bara District Palopo City Wardayani, Wardayani; Mahmudin, Mahmudin; Sukimin, Ridwan
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

One of the problems caused by human activities that many cities in the world face is marine debris. The emergence of some problems caused by an increase in the amount of waste is closely related to the increasing needs and human activities as the population increases. The purpose of this study was to determine the type of inorganic waste in the mangrove ecosystem in the Wara Timur and Bara Districts. This research was conducted in April - November 2023 in Wara Timur and Bara Districts. Meanwhile, the analysis of marine debris was carried out at the Marine Laboratory of the Muhammadiyah University of Palopo. Data collection techniques use the observation method by making a 100 long transect. In each District, 3 observation stations are made. The results of this study indicate that the types of inorganic waste found at the research location are plastic, glass, and cloth waste. Of the various types of waste obtained, plastic is the most common type of waste found in research locations.
Bivalve Community Structure in Coastal Water of Lalang Village, Siak District Riau Province Ritonga, Rifai Ramadhan; Zulkifli, Zulkifli; Nasution, Syafruddin
Journal of Coastal and Ocean Sciences Vol. 4 No. 2 (2023): 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/

Abstract

This research was conducted in July - September 2022 in the coastal waters of Lalang Village, Sungai Apit District. The purpose of this study was to determine the structure of the bivalve community including abundance, relative abundance, diversity, uniformity index, dominance index, and distribution pattern. Sampling was done using the line transect method at 3 stations. The results of the study obtained two species of bivalves in the waters of Lalang Village Beach, namely Polymesoda erosa and Glauconome virens with abundance at all stations ranging from 1.67 - 5.33 ind/m2. The bivalve diversity index value at the study site is categorized as low diversity. The bivalve uniformity index value is high, and the dominance index value indicates the presence of dominating species. The distribution pattern of bivalves between observation stations is clustered
Analysis of Ice Supply Needs for Purse Seine Ship Operations in Kutaraja Ocean Fishing Port, Aceh Province Adha, Ridho; Zain, Jonny; Brown, Arthur
Journal of Coastal and Ocean Sciences Vol. 4 No. 2 (2023): 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/

Abstract

This research was conducted in March 2022 at Kutaraja Ocean Fishing Port, Banda Aceh City, Aceh Province. The purpose of the study was to determine what factors determine the amount of ice carried for fishing operations on purse seine fishing gear, and how the relationship between these factors and the amount of ice carried. The method used in this research is the survey method. The data collected were statistically analyzed using the normality test, multicollinearity, ANOVA, Multiple linear regression, and T-Test. The results showed that the size of the ship (X1), the length of the trip (X2), and the amount of catch (X3) affect the amount of ice carried (Y) by purse seine vessels in the form of multiple regression equation Y = 2403.052 - 100.725 X1 + 294.378 X2 + 1.686 X3. The value of the determinant coefficient obtained is 59.4%.
Short Communication: Structure Community of Mangrove in Peunaga Rayeuk Area, Meurebo District, Aceh West Lisdayanti, Eka; Marlian, Neneng; Hutabarat, Malfajri; Riyanti, Levi
Journal of Coastal and Ocean Sciences Vol. 4 No. 2 (2023): 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/

Abstract

This study aims to determine the structure of the mangrove community on the coast of Peunaga Rayeuk, Meurebo District, and West Aceh District. The method used in this study was line transect, making transects/plots for each observation station with a size of 10x10 m2 with 3 replications so that each observation station has an area of ​​30x10 m2. This research was conducted in October 2022. There were 2 types of mangroves included in the observation station, namely Rhizophora apiculata and Avicennia alba, while the associated mangrove was of the type Acrostichum speciosum. In addition, there are also associated mangroves that are not included in the observation station but are located around the observation station, namely Nypa fruticans, Hibiscus tiliaceus, and Pandanus odoratissima. Stations 1 and 2 were dominated by sandy and muddy sand substrates, which respectively showed a diversity index of 0.054 and 0.149, a uniformity index of 0.078 and 0.215, and a dominance of 0.478 and 0.252. The most abundant species was R.apiculata with a relative density of 0.949 ind/ha, followed by S.alba of 0.051. Relative cover of R.apiculata and S.alba respectively with the range of 0.302 and 0.698. The results of this study concluded that over all the structure of the mangrove community on the coast of Peunaga Rayeuk is still classified as low, so it requires greater attention in the restoration and management of mangrove ecosystems
Productivity of Yellow fin Tuna (Thunnus albacares) catches on Hand line Vessels before the Continuation of the Covid-19 Pandemic in PPS Bungus West Sumatra Province Sitepu, Egi Dwi Putra; Isnaniah, Isnaniah; Bustari, Bustari
Journal of Coastal and Ocean Sciences Vol. 4 No. 2 (2023): 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/

Abstract

Hand line is the simplest type of fishing gear. It consists of a fishing rod, fishing line, and weight or bait. The Coronavirus outbreak has had an impact on capture fisheries marketing, where fish prices have decreased by up to 50%. The purpose of this study is to determine whether there is an effect of the Covid 19 pandemic on the number of yellow fin tuna (Thunnus albacares) catches on hand line vessels at PPS Bungus, West Sumatra Province. Productivity of hand line trip and per crew in 2019 has the highest results and there is always a decrease in 2020, productivity per trip and crew in 2020 has decreased from 2019, again there is an increase in productivity results from 2020 - 2021 although not significant. The decline in average productivity from 2019 - 2021 is the impact of the Covid 19 Pandemic, and the factors for the decline in catch productivity are the fishing season, bad weather so that the water conditions are murky (brown) which makes it difficult to catch
Identification of Belat Bycatch in Anak Setatah Village Rangsang Barat District Meranti Island Regency Riau Province Sembiring, Firma Surmana; Brown, Arthur; Yani, Alit Hindri
Journal of Coastal and Ocean Sciences Vol. 4 No. 2 (2023): 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/

Abstract

The belat is a passive fishing gear that belongs to a group of traps operated in areas around the coast. In its operation, the belat not only produces the main catch but also gets bycatch. This study aims to identify the main catch and by catch. The research method used is the survey method by making direct observations of the belat catch and then the catch is identified as the type of fish, the number of individuals, and the weight of the fish. The results of descriptive analysis showed that the main catches were two types of shrimp, namely white shrimp (Penaeus indicus) and striped shrimp (Penaeus monodon) with a weight of 30400 g. The main catches were white shrimp (Penaeus indicus) and striped shrimp (Penaeus monodon). The by-catches were small fish and young fish, the by-catches consisted of 6 species with a total weight of 29300 g
Sustainability Status of Gillnet Fisheries Based on Ecological, Social, and Economic Dimensions in the Riau Province Fisheries Port Technical Unit Putri, Anisa; Yani, Alit Hindri; Brown, Arthur
Journal of Coastal and Ocean Sciences Vol. 4 No. 2 (2023): 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/

Abstract

Gillnet fishing gear is an environmentally friendly fishing gear but in 2018-2020 the catch was reduced. The purpose of this study was to determine the sustainability status of gillnet fisheries based on ecological, social, and economic aspects at the Riau Province Fisheries Port Technical Unit. Data analysis in this study used Rapfish (Rapid Appraisal for Fisheries) technique. The rapfish technique is a multidisciplinary ordination technique used to evaluate/determine/compare the status of fisheries in terms of their sustainability. This study shows that in general, the sustainability index of gillnet fisheries in the Riau Province Fisheries Port Technical Unit is between the index values of 25.01-50 which is classified as less sustainable. Monte Carlo simulation results show that the distribution of sustainability index plots is at a distance that is not far and coincides with the position of the sustainability index ordination, supporting the accuracy of determining the ordination of the sustainability status examined. Sensitivity analysis showed that the attributes of changes in fish weight in the last 5 years, family participation in the utilization of fishery resources, and alternative employment and income are attributes that greatly affect the sustainability of gillnet fisheries in the Riau Province Fisheries Port Technical Unit

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