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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, Laela; 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)
Study of the Environmental Friendliness and Financial Belat in the Waters of Siak River Benayah Village Siak Regency Riau Province Setiawan, Arief; Bustari, Bustari; 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

The waters of the Siak River in Benayah Village have several fishing gears used in fishing activities. One of the fishing gears used is belat. The belat is a type of trap and is included in the classification of other trapping devices (other traps). The purpose of this study was to determine the construction of fishing gear in general, fishing operations, and the level of environmental friendliness and the feasibility of the belat fishing business. This research was carried out in December 2022 in the waters of the Siak River. The method used in this research is the survey method. The results of the FAO withdrawal study (1995) showed that the belat in Benayah Village was classified as a very environmentally friendly fishing technology. The results of the analysis of the business of fishing for belat known (NPV) with a prediction of 10 years show that the business of catching maggots achieves a return of capital in the 1st year of IDR 1,995,283
Feasibility Analysis of the Fishing Equipment Business Bagan Perahu KM. Sembari 05 at Fish Landing Base (PPI) Air Bangis, Sungai Beremas District Pasaman Barat Regency, West Sumatra Province Rantika, Tri; Isnaniah, Isnaniah; Nasution, Polaris
Journal of Coastal and Ocean Sciences Vol. 4 No. 1 (2023): 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 feasibility analysis of the boatlift net business aims to find out whether the KM Sembari 05 Bagan perahu net with a boat weight of 30 GT is feasible to be made into a fishing business or not based on business feasibility analysis. The method used in this research is a survey method by making direct observations in the field by looking at fishing activities using Bagan perahu fishing gear. Investment costs incurred for the operation of the KM. Sembari 05 Bagan perahu net is IDR 1,005,400,000; production costs for 1 year for fixed costs and operational costs are IDR. 1,502,292,400. While the gross income earned for 1 year Rp. 2,315,731,000 and a net income of IDR. -556,601,900/year. KM. Sembari 05 ship has a payback period of the capital of 1 year 9.6 months, which means a payback period of at least 1 year 9.6 months is required from the total service life of the KM Bagan perahu while 05 is 20 years
Identification of Phytochemical Compounds from Seaweed Extracts Eucheuma cottonii and Gracilaria verucossa and Their Effect on Bacteria Growth Escherichia coli Januardi, Deki; Mulyadi, Aras; Yoswaty, Des
Journal of Coastal and Ocean Sciences Vol. 4 No. 1 (2023): 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

Seaweed is known to have several bioactive compounds that function as secondary metabolites and antioxidants. This study aims to determine the compounds in the seaweed Eucheuma cottoni and Gracilaria verucossa and their effects on Escherichia coli bacteria. This research was conducted from February to April 2022. The research method used was the experimental method by performing phytochemical tests and the disc method on bacteria. Conclusions can be drawn because of the results of the research that has been done. Seaweed E.cottoni and G.verucossa contain steroidal compounds. The effect on the growth of E.coli bacteria at concentrations (5%) 8.24 mm, (10%) 8.5 mm, and (15%) 8.62 mm was classified as moderate
The Effect of Bait and Operating Time on the Catch of Basic Longline in Bantar Village, Rangsang Barat District, Kepulauan Meranti Regency Hidayat, Syahyan Fitra; Brown, Arthur; Isnaniah, Isnaniah
Journal of Coastal and Ocean Sciences Vol. 4 No. 1 (2023): 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 conducted in Bantar village, Rangsang Barat subdistrict, Kepulauan Meranti regency, Riau Regency for 10 days on January 2021. This study aims to find out and analyze the effect of bait type and operating time (night and day) on the catch and the hook rate of the catch of fishing gear (bottom long line). The method used in this study is an experimental fishing method a method that can be done if the data to be obtained is not yet available so that the variables to be measured must be generated data through experiments, observation of the data can only be carried out after the experiment. With a complete random block design of a factorial pattern of 2 x 3 with a replay of 10 to be carried out on different days, which is then made into a block (group). The use of different types of bait (Bombay duck, sea worms, and flatfish) statistically has a noticeable effect on the number of fish catches on bottom fishing gear. The number of catches of longline fishing gear using Bombay duck bait got 74 catches with an average hook rate of 0.37% during the day and night operations, sea worm baits got 65 catches with an average hook value rate of 0.325% during the operating time during the day and at night, fish next door get 81 catches with an average hook rate of 0.405%.
Productivity and Financial Analysis of Fishing Effort with Handline at Kutaraja Ocean Fishing Port Aceh Province Manalu, Angga Setia; Zain, Jonny; Brown, Arthur
Journal of Coastal and Ocean Sciences Vol. 4 No. 1 (2023): 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

Production of catches on hand line-fishing gear at Kutaraja Ocean Fishing Port has decreased, this is clearly seen from the level of fish production produced, which was 2.407.580 tons in 2018 compared to production in 2019, which was 2,285,750 tons. The fishing business, which has become one of the livelihoods of the Indonesian people, is a little riskier compared to other businesses because the fish which are the main target of this business is always moving dynamically. The research objectives were to determine productivity per GT, Trip, and ABK on hand line-fishing gear and to determine the financial feasibility analysis of fishing effort on hand line-fishing gear at Kutaraja Ocean Fishing Port. The benefits of this research are to increase knowledge and insight regarding productivity and financial analysis of the fishing line effort. The method used in this study is a survey method. The data analysis method used in this research is a descriptive analysis method. The results showed that the value of productivity per trip with large-size ships has a high amount of production compared to smaller ship sizes. This is because a larger ship has a carrying capacity or more carrying capacity. Hand line fishing with a vessel size > 30 GT has a relatively long payback period, i.e. < 5 years. While ships with a size of 5 GT. 6 GTs. 9 GTs. 22 GTs. and 24 GT have a payback period of < 3 years. This is because a larger ship has a carrying capacity or more carrying capacity. Hand line fishing with a vessel size > 30 GT has a relatively long payback period, i.e. < 5 years. While ships with a size of 5 GT. 6 GTs. 9 GTs. 22 GTs. and 24 GT have a payback period of < 3 years. This is because a larger ship has a carrying capacity or more carrying capacity. Hand line fishing with a vessel size > 30 GT has a relatively long payback period, i.e. < 5 years. While ships with a size of 5 GT. 6 GTs. 9 GTs. 22 GTs. and 24 GT have a payback period of < 3 years.
Phytoplankton Abundance and Diversity in the Coastal Waters of Lalang Village, Siak Regency Ritonga, Agnesia; Zulkifli, Zulkifli; Siregar, Yusni Ikhwan
Journal of Coastal and Ocean Sciences Vol. 4 No. 1 (2023): 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 conducted in May 2022 in the coastal waters of Lalang Village, Siak Regency. This study aims to analyze the abundance and diversity of phytoplankton. The method used is the survey method by determining the sampling location by purposive sampling. Based on the results of the study, 6 species of phytoplankton were found in the coastal waters of Lalang Village, Siak Regency, namely Nitzschia sp, Isthmia sp, Navicula, Dactylococcopsis sp, Flagilaria sp, and Synedra sp. The average value of abundant phytoplankton at station 1 ranged from 1,938.61 to 479.68; at station 2 it ranged from 3,046.40 to 479.68; at station 3 it ranged around 1,384.72 to 479.68. Based on the results, the abundance of phytoplankton at each station was significant
Estimation Fishing Season of Skipjack Tuna (Katsuwonus pelamis) Using Data on Catch Production at Kutaraja Oceanic Fishing Port Aceh Province Hasugian, Juniori Hulkman; Brown, Arthur; Bustari, Bustari
Journal of Coastal and Ocean Sciences Vol. 4 No. 1 (2023): 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

Kutaraja Ocean Fishing Port (PPS) is a fishing port that has various catch characteristics; one of the most dominant catches is skipjack tuna. The purpose of this study was to analyze the skipjack tuna catches per unit fishing effort (CPUE) and to estimate the skipjack tuna fishing season index at the Ocean Fishery Port of Kutaraja. This research was conducted in October 2021 at the Kutaraja Ocean Fishing Port using the survey method. The results of the study showed that skipjack tuna catches at the Samudera Kutaraja Fishing Port in 2016-2020 experienced quite significant fluctuations. In addition, the fishing effort is quite high so the catch of skipjack per fishing effort (CPUE) for the 2016-2020 periods has decreased. The highest CPUE value was in September 2018, namely 7.163 kg/unit, and the lowest was in January 2016, namely 483 kg/unit. In this study, it can be assumed that the peak season for skipjack tuna occurs in May, July, August, September, and October. The moderate season for skipjack tuna occurs in January, February, March, June, November, and December

Page 22 of 30 | Total Record : 293

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