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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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Assessment of Fisheries Management Status with Ecosystem Approach on Bagan Boat Ship in Bungus Waters Silaban, Recyka; 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

EAFM or Ecosystem Approach for Fisheries Management is a concept of how to balance socio-economic goals in fisheries management while still considering knowledge, information and uncertainty about biotic, abiotic and human interactions in aquatic ecosystems through a comprehensive and sustainable integrated fisheries management. The fishery potential is quite large in Bungus waters and the continuous fishing activities carried out by boat lift fishermen lead to overfishing; therefore fisheries management is very necessary to realize sustainable fisheries, especially for fishery commodities. The purpose of this study was to determine the status of the management of the bagan boat fishery in Bungus pps. This research was conducted in February 2022 at the Samudra Bungus Fishing Port, West Sumatra. The method used in this study uses the method issued by the National Working Group EAFM.DIT SDI KKP; the data taken are primary data and secondary data. Analysis of the data used using an ordinal-based likert scoring with a scoring assessment of 1,2,3. The greater the value, the better the EAFM that has been run. The results of the study show that the management of capture fisheries in the fishing technique domain at PPS Bungus is still lacking in implementing EAFM with a composite value of 18.8
Composition of Catches on Bottom Gill Net Fishing Gear in Sedanau Waters of Natuna Regency Warni, Yulia; Yani, Alit Hindri; Nofrizal, Nofrizal
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 bottom gill net is one of the fishing gears made from a rectangular net installed at the bottom of the water. The basic gill net construction used is a net thread made of monofilament polyamide material, the size of the fishing gear used is a net length of 2.50 meters, a net body width of 1.5 meters, and a mesh size of 3 inches. Knowing the state of the environment is a very important reason to increase the catch by using environmental parameters such as physical parameters that are easier to observe. The main fishing items are Coral Pond (Lethrinus lentjan), Timunan (Lutjanidae vitta), Yellowtail (Lutjanus fulviflamma), Red Snapper (L.bitaeniatus), and Kuwe (Caranx ignobilis). Bycatch is Black Pomfret (Parastromateus niger), Seminyak (Plectorhinchus), Gerut (Pamadasys maculatus), Stingray (Dasyatis sp), Lepu Batu (Pterois volitans), and Crab (Portunidae). This study aims to determine the composition of the catch. This research was carried out in Sedanau waters in Natuna Regency, Riau Islands Province for 7 days in February 2022 using the survey method. One unit of basic gill mesh is operated to collect data and is analyzed by analysis of the composition of types and weights. The results showed that 11 types of fish were caught and dominated by Yellowtail (L.fulviflamma) as many as 77 with a percentage value of 26.46%.
Study of Belat Fishing Gear in the Waters of Dumai, Riau Province Asna, Laena; Bustari, Bustari; 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

Based on data from the Dumai City PPI Office in 2013 and 2019, the number of belat fishing gear in Dumai City has decreased from 20 to 7. It is suspected that there are symptoms of overfishing caused by the non-selectivity of this belat, where the bycatch is greater than the main catch, and supported by belat construction data because it is known that fishermen use a small mesh size of 1 inch. The study's purpose is to find out how the main catch and bycatch which amount of catch is more caught. Data analysis using descriptive analysis and research methods with survey methods. The main catch of belat weighing 1.914.9 kg is composed of white shrimp (Penaeus indicus), kelong shrimp (Penaeus merguiensis), Malaysian prawn (Macrobranchium rosenbergii), smallhead catfish (Euristhmus microceps), bluespot mullet (Crenimugil seheli), gulamah (Panna microdon), and the bycatch weighs 710 kg is composed of Fourfinger threadfin (Eleutheronema tetradactylum), sagor catfish (Hexanematichthys sagor), milk shark (Rhizoprionodon acutus), stingray (Dasyatis sephen), silver sillago (Sillago sihama), white snapper (Lates calcarifer), spotted scat (Scatophagus argus), crab (Portunus pelagicus), pomfret (Pampus argenteus), and saddle grunt (Pomadasis maculates).
The Relationship between Current Patterns and the Distribution of Surface Waste in the Waters of the City of Palopo Veranika, Veranika; Mahmudin, Mahmudin; Polapa, Funty Septiyawati
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

Marine debris is a solid material that is disposed of or left in the marine environment by the public either intentionally or unintentionally. The purpose of this study is to identify the abundance and weight of waste (mega and macro) and explain the relationship between current patterns and the distribution of surface waste in the waters of Palopo City. The research was conducted in May-July 2023. Sampling data was collected using Neuston nets installed on both sides of the boat. The results showed that the marine debris found in the waters of Palopo City during high and low tide was dominated by plastic waste. The abundance of plastic waste at high tide is higher than at low tide. The accumulation of scattered surface marine debris is carried away by currents due to the intensity of wind and tides and strengthened by the location of the waters close to the mainland of Palopo City so that marine debris carried by wind and currents tends to the south
Diversity and Distribution Patterns of Macrozoobenthos in the Intertidal Zone of Pasumpahan Island, Padang City, West Sumatra Province Utari, Vannesa; Thamrin, Thamrin; 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

Macrozoobenthos are organisms that live sedentary (sessile) and have varying adaptability to environmental conditions. In addition, the level of diversity found in the aquatic environment can be used as an indicator of pollution. The purpose of this study was to determine the type, abundance, diversity, and distribution pattern of macrozoobenthos in the intertidal zone. This research was conducted in the waters of Pasumpahan Island. The method used in this study was a survey method, while sampling was carried out using three stations and each station consisted of 3 transects and three sub-zones using a 1m x 1m quadrant map. The results of this study found that the abundance value at each station was 4.22-5.78 ind/m2, while the abundance in the sub-zone ranged from 3.00-7.67 ind/m2, the diversity index (H') at the study sites ranged from 1.65-2.31, which means 1.0 ≤H' < 3.0 and the diversity of macrozoobenthos at the study site was categorized as moderate. The distribution pattern (Id) of macrozoobenthos at locations was clustered with a value of 1.05-1.28. The results of the One Way ANOVA test between stations obtained a value of 0.001 where p <0.05, which means H0 was rejected and there was a significant difference between the 3 stations, followed by the LSD test to find out which average between stations was the most different real
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
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
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%.

Page 9 of 30 | Total Record : 293

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