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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 18 Documents
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Search results for , issue "Vol. 4 No. 1 (2023): January" : 18 Documents clear
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, Dessy
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%.
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
Composition of Longline Fishing Catches in Sungai Sembilan Waters, Bangsal Aceh District, Dumai City, Riau Province Adha, Dwicha Addiva; Zain, Jonny; 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

The longline fishing gear in the Bangsal Aceh District is a secondary fishing gear from the pengerih fishing gear, the Bangsal Aceh anglers use the longline fishing gear when they are free or when anglers only want to use it. This study aims to determine the construction of longline fishing gear and determine the basic composition of longline catches using bait that is often used. The research method used is a survey method. The data collected starts from supplies, ship condition, condition of fishing gear, data on fish species, fish weight, and the number of individual fish, which are then analyzed by calculating the effort of the hook rate, and the catches obtained. Then analyzed descriptively by defining the main catch and bycatch. From the results of the research conducted for two weeks, the catch consisted of three types, namely giant catfish, sagor, and stingrays. Stingrays were the heaviest fish weighing 57.8 kg (80.38%), followed by giant catfish with 13.6 kg (18.9152%), and sagor with 0.5 kg (0.69541%). Meanwhile, according to individuals, the most commonly found fish were 11 giant catfish (64.7%), followed by 5 stingrays (29.4118%), and 1 sagor (5.88235%). Meanwhile, according to individuals, the most commonly found fish were 11 giant catfish (64.7%), followed by 5 stingrays (29.4118%), and 1 sagor (5.88235%). Meanwhile, according to individuals, the most commonly found fish were 11 Giant catfish (64.7%), followed by 5 stingrays (29.4118%) and 1 sagor (5.88235%).q
Analysis of the Effectiveness of Mango Leaves (Mangifera indica) as a Phytoimunostimulant on Common Carp (Cyprinus carpio) in Brackish Water Saputra, Andika; Effendi, Irwan; Mardalisa, Mardalisa
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 problems that are often experienced when cultivating goldfish are diseases caused by pathogens that attack cultivated fish. The cause of disease in fish is caused by interactions between fish, pathogens and their habitat environment that can cause death in fish. The solution to this problem is to provide a phytoimmunostimulant derived from mango leaves (Mangifera indica). The purpose of this study was to determine the effect of mango leaves on the hematology and physiology of common carp. This research was conducted in January-April 2022. The method used in this research is an experimental method by comparing data. Parameters observed were total erythrocytes, hemoglobin, hematocrit, blood glucose, absolute body weight growth, survival rate, and water quality. Based on the research that has been done, it can be concluded that the addition of 1.5% mango leaf powder into fish feed as a phytoimmunostimulant affects the hematological and physiological effects of common carp. Common carp treated with phytoimmunostimulants in fresh water had higher mean values ​​(total erythrocytes 1.75x106 cells/mm3, hematocrit 33.66%, and hemoglobin 8.13 g/dL) compared to data in brackish water (total erythrocytes 1.54x106 cells/mm3, hematocrit 30.66%, and hemoglobin 7.76 g/dL).
The Service of Bungus Ocean Fishery Port to Support Tuna Industries Zainal, Resti; Nofrizal, Nofrizal; 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

The services of the Bungus Ocean Fishery Port as the only tuna Fishery port in West Sumatra in supporting the availability of facilities required by each tuna industry stakeholder. The purpose of this study is to determine the services from the Bungus Oceaning Fishery Port that are currently being experienced by fisheries stakeholders, especially tuna and to determine the level of satisfaction of tuna entrepreneurs with the performance of the Bungus Ocean Fishery Port. The data analysis used is weighting or scoring, and then IPA and CSI analysis is carried out. The results showed that the Bungus Ocean Fishery Port played a good role in providing production activities, infrastructure and public services, and tuna stakeholders felt quite satisfied with the performance of the Bungus Ocean Fishery Port in supporting the tuna industry
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
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

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