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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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The Relationship of Nitrate, Phosphate, and Silicate Concentrations to The Abundance of Planctonic Diatoms in Carocok Tarusan Waters, Pesisir Selatan District Yandra, Yoli; Nedi, Syahril; Elizal, Elizal
Journal of Coastal and Ocean Sciences Vol. 3 No. 1 (2022): 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 carried out from December 2020 to January 2021 in Carocok Tarusan Waters, Pesisir Selatan Regency, West Sumatra, which aims to analyze the concentration of nitrate, phosphate and silicate, calculate the abundance of planktonic diatoms and analyze the relationship between the content of nitrate, phosphate and silicate to the abundance of planktonic diatoms present. in the waters of Carocok Tarusan, Pesisir Selatan Regency. The research method used in this study is a survey method while the determination of research stations is carried out by purposive sampling. The results showed that the average nitrate concentration was 0.7792– 0.8757 mg/L, the average phosphate concentration was 1.7220– 2.0833 mg/L and the silicate concentration was 0.6287 - 0.6835 mg/L. Planktonic diatoms found in Carocok Tarusan waters contained 13 species from 3 classes, namely Bacillariophyceae, Chaetoceraceae and Coscinodiscophyceae. The results of the calculation of the abundance of planktonic diatoms are 17.82 – 20.72 Ind/L. The test conducted to determine the relationship of nitrate, phosphate and silicate to the abundance of planktonic diatoms was a simple linear regression test. Based on the results of the linear regression test, it is known that the effect of nitrate concentration on the abundance of planktonic diatoms in Carocok Tarusan waters is 00.81%, while the remaining 99.19% is influenced by other factors, for the effect of phosphate concentration on the abundance of planktonic diatoms in Carocok waters. Tarusan is 8.81%, while the remaining 91.19% is influenced by other factors and for the effect of silicate concentration on the abundance of planktonic diatoms in Carocok Tarusan waters as much as 2.97%, while the remaining 97.03% is influenced by other factors.
A Map of Sea Surface Temperature in Rupat Strait Based on Satellite Image of Aqua-Modis Rambe, Pahala Roy; Mubarak, Mubarak; Rifardi, Rifardi
Journal of Coastal and Ocean Sciences Vol. 3 No. 1 (2022): 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

The study aims to identify variations in the surface temperature of the water of Dumai, Riau province, using the AQUA-Modis satellite. Data analysis uses seadas and surfer software. In this study, the method used was the survey method. Ground check done was to establish the immediate value of ocean surface temperature. It also measures the quality of the water and gives documented observations of the waters. Parameters measured in this study are those of the quality of the water covering: brightness, temperature, acidity (pH), and salinity. The measured parameters for the quality of water in the Dumai waters were carried out at 3 stations that are thought to represent the parameters of the waters of the city of Dumai. The result of the measured parameters for the quality of the Dumai waters is known that for the value of the brightness of the dumai waters is between 7.5 and 16 cm, the water temperature is between 28-29 oC, the degree of acidity (pH) of water ranges between 6-7 and dumai water salinity (26-32‰). Based on studies that 2020 variations in surface temperature (SST) have a varying range of temperatures. Variations in surface temperature are marked by SST anomalies indicating that the value of negative anomalies indicates that an SST shift is marked by a drop in temperature.
The Structure of Mangrove Community in Sebauk Village, Bengkalis District, Bengkalis Regency, Riau Province Siregar, Ali Mora Hadamean; Efriyeldi, Efriyeldi; Nasution, Syafruddin
Journal of Coastal and Ocean Sciences Vol. 3 No. 1 (2022): 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

The use of mangroves for economic purposes has long been carried out by the community, especially coastal communities without making significant improvements to the mangrove forest. This condition can provide significant pressure to the mangrove ecosystem of Sebauk Village. The purpose of this study is to analyze the community structure of the mangrove vegetation community in Sebauk Village. The method used in this study was the survey method. The result shows that the composition of the mangrove vegetation in Sebauk Village consisted of 3 Species, namely Rhizophora apiculata, Rhizophora mucronata, and Sonneratia alba. The highest inforten index value was Rhizophora apiculata with a percentage of 243.42% and the lowest value was Rhizophora mucronata namely 56.57%. Meanwhile, an informed index value of S. alba was 153.69%.
Fishing Range Based on Spreads of Chlorophyill-a in Rupat Strait using Aqua-Modis Satellite Image Sitorus, Gideon Dody Tama; Rifardi, Rifardi; Mubarak, Mubarak
Journal of Coastal and Ocean Sciences Vol. 3 No. 1 (2022): 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

The study aims to know the area of fishing in the waters of the Strait based on a flat-out chlorophyill-a satellite image of AQUA-Modis. Data analysis uses Seadas 7.5.1 and Surfer 13. In this study the method used was the survey method. Ground checks are done aimed at directly knowing the water quality parameters. And also there is a documented documentary on the waters. Parameters measured in this study are those of the quality of the water covering: brightness, temperature, the velocity of the current, acidity (pH) and salinity. The measured parameters for the quality of water in the Dumai Waters were carried out at 3 stations that are thought to represent the parameters of the waters in Dumai. The result of the measured parameters for the quality of the Dumai Waters is known that for the value of the brightness of the Dumai waters is between 7.5 to 16 cm, the water temperature is between 28-29oC, the degree of acidity (pH) of water ranges between 6-7 and the salinity of the water is 26-32 0/00.The chlorophyill-a concentration in the Dumai waters based on analysis of the AQUA-Modis satellite image ranging from 4.001 to 11200 mg/m3. The level of fishing area in the Dumai Waters is 75%.
Mangrove Vegetation Community Structure in Sungai Sembilan Sub-District, Dumai City Hasyim, Ardhan Fadhlani; Mulyadi, Aras; Efriyeldi, Efriyeldi
Journal of Coastal and Ocean Sciences Vol. 3 No. 1 (2022): 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

Mangroves are one of the important ecosystems in coastal areas that grow in places that are still influenced by tides. This research was conducted from October to November 2019 in the mangrove ecosystem of Sungai Sembilan District, Dumai City, Riau Province. The purpose of this study was to determine the structure of mangrove vegetation in Sungai Sembilan District, Dumai City. The method used in this study was a survey method, and used 4 stations. The mangrove species obtained were Avicennia alba, Avicennia mariana, Rhizophora apiculata, R. mucronata, Sonneratia alba, Xylocarpus granatum and Nypa fruticans. The density of mangrove vegetation at stations I, II, and III has criteria 1000 to < 1500 Trees/Ha, while at station IV the criteria are damaged with tree density criteria < 1000 Trees/Ha. From the aspect of the index, the mangrove community has a diversity value (H') which is classified as moderate with sufficient productivity which has a value ranging from 1.70 to 2.36, the value of uniformity (E) is classified as uneven, which is around 0.25 to 0.34 and the index value is dominance (C) which is relatively low, ranging from 0.12 to 0.33 which means that there is no dominant species in the area. Based on the significance value, the vegetation type R. apiculata dominated by having a greater significance value than the other species as a whole at each station in the tree, sapling and seedling categories.
Condition of Mangrove Forest in the Village of Apar Pariaman Utara District Pariaman City West Sumatra Province Alpian, Alpian; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): 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

Pariaman Utara District has the most extensive mangrove forest, which is 16.5 ha, in Apar Village the amount (6.0 ha). The purpose of this study was to determine the type and density of mangrove forests and to determine the condition of mangrove forests by determining the percentage of canopy cover in Apar Village. The method used in this research is a survey method, where the data collected is data obtained directly from the field which is then analyzed the data. The research procedure consisted of several stages, namely, collecting density data at 3 stations. Each station consisted of 3 straight line transects along 50 meters from the sea and estuary to land with a position perpendicular to the coast and having a distance between transect lines of 50 meters. In each transect line there are 3 plots arranged in a zigzag manner with a size of 10 m x 10 m for the tree category mangrove community structure. Retrieval of canopy cover photo data which was then analyzed by hemispherical photography. The results of measurements of water quality from the research location were temperature 29 - 30 ° C, salinity 4 - 5 ‰ and pH of the waters were 6-7. The composition of mangroves in the research locations were Sonneratia caseolaris, Sonneratia alba, Rhizophora mucronata, Nypa fructicans. Density at station I, 1700.00 trees/ha, station II 1311.11 trees/ha and station III 1888.89 trees/ha. Canopy cover at station I, 80.65%, station II, 58.46% and station III, 83.21%.
Microplastic in the Digestive Tract of Kurau (Polydactylus octonemus) in the Coastal Waters of Karimun Besar Island, Riau Islands Province Dalimunthe, Arif Munandar; Amin, Bintal; Nasution, Syafruddin
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): 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 was conducted in March 2020 to know the presence of microplastics in the digestive tract of wild threadfin fish in the coastal waters of Karimun Besar Island, Riau Islands. The method used in this study was survey method. The results showed that the abundance of microplastics in the digestive tract of fish varies, the lowest of 2.89 particles / individu to the highest of 5.89 particles / individu with the dominant type found was fibre. The abundance of microplastic at station 1 was found to be higher than in station 2. The different anthropogenic activities in the two station were discussed. The Relationship between kurau fish size and microplastic abundance is weak with r = 0.21 and R² = 4.6% with the regression equation is y = 7.9747 – 0.0813x.
Identification of Microplastic Type and Abundance in East Coast of Karimun Besar Island, Riau Islands Alpiansyah, Beni; Amin, Bintal; Galib, Musrifin
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): 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

High anthropogenic activities on the east coast of Karimun Besar Island contribute a certain amount of wastes, especially plastics. Plastics will be degraded due to the natural mechanism of smaller parts and known as microplastics. Small size and widespread distribution has caused microplastics can be found widely in the ocean and coastal areas. This study was conducted in March 2020, located on the east coast of Karimun Besar Island, Province of Riau Islands. The purpose of this study was to know the presence of microplastics in its coastal water. The method used in this study was a survey method by taking samples from four stations with suspected different anthropogenic activities. The results showed that the lowest abundance of microplastics in the coastal waters of the east coast of Karimun Besar Island was 63,33 particles/m3 and the highest was 161,66 particles/m3, with the dominant type found was fibre. The abundance of the microplastic between station was found to be significantly different (p < 0,05).
Water Pollution Levels Based on Organic Matter Parameters and Amount of Escherichia coli Bacteria in the Mosque River Estuary of Dumai City Abmi, Cyndy; Nedi, Syahril; Effendi, Irwan
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): 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 2020 at Mosque River Estuary of Dumai City, Riau Province. The aimed of this research was to determine the pollution levels in the Mosque River Estuary based on organic matter parameters and E. coli bacteria. DO analysis refers to SNI 06.6989.14-2004, BOD5 refers to SNI 06-2503-2009, BOT refers to SNI 06-6989.22-2004 and E. coli bacteria refers to SNI 2897: 2008. The results of DO measurements ranged from 5.30 - 5.56 mg/l, BOD5 ranged from 16.5-21.8 mg/l, BOT ranged from 15 - 162 mg/l, and bacteria E. coli ranges from 11.1 - 1,100 MPN/100ml. Based on the results of the account of the Pollution Index, the Mosque River Estuary waters of Dumai City, Riau Province, are categorized as light to moderate pollution.
Growth of Api-Api (Avicennia alba) Rehabilitation in Kedaburapat Village, Rangsang Pesisir City Meranti Islands District Khawarizmi, Dannes M.; Efriyeldi, Efriyeldi; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 2 No. 2 (2021): 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-October 2020. Observation and data collection of Avicennia alba growth was carried out in the mangrove forest rehabilitation area, Kedaburapat, Kepulauan Meranti Regency. The purpose of this study was to analyze the growth of A. alba as on rehabilitation project based on the height and diameter planted in the coastal area of Kedaburapat, Kepulauan Meranti Regency. A survey method was conducted to obtain primary data. The data collected included the height and diameter of A. alba stems as well as measurements of water quality. The results of the research showed that the average height increase A. alba on the transect was 7.59-19.86 cm/month. The average value of the increased diameter based on the transect was 1.05-3.11 mm/month. Meanwhile, the average height by zone was 8.07-16.13 cm/month. The average value of the increased diameter by zone was 1.03-2.70 mm/month.

Page 27 of 30 | Total Record : 293

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