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INDONESIA
Jurnal Perikanan dan Kelautan
Published by Universitas Riau
ISSN : 08537607     EISSN : 27218902     DOI : http://dx.doi.org/10.31258/jpk
Core Subject : Science, Agriculture, Social,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Environmental Science Immunology & microbiology Social Sciences
Journal of Fisheries and Marine was published by the Faculty of Fisheries and Marine of the Universitas Riau in 2007. The scope of the research included: Aquaculture, fisheries socioeconomic, fisheries technology, management of aquatic resources, utilization of fisheries and marine resources
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 938 Documents
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Community Structure of the Bivalve in Tidung Island Waters, Seribu Islands Regency, DKI Jakarta Province Harahap, Anugrah Setiadari; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Jurnal Perikanan dan Kelautan Vol 28, No 3 (2023): October
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.28.3.331-338

Abstract

Community structure is a concept that studies the composition of species and abundance in a community. This research was conducted in April 2022 in the waters of Tidung Island, Seribu Islands Regency. The purpose by conducting this study was to determine the structure of the bivalve community which includes species, density, relative density, diversity, uniformity, dominance, distribution pattern and index of similarity. The research method used in this study is survey method, were carried out at 3 stations, station determination using purposive sampling method taking into account the anthropogenic conditions in the study area. Based on results, types of bivalves found consisted of 6 species of bivalve. The species most commonly found is Atrina pectinata. The abundance of bivalve obtained ranged from 2.67 – 5.47 ind/m2. The results of the ANOVA test between observation stations obtained the value of sig. <0.05, so it can be concluded that the density of Bivalvia between stations was significantly different, except for stations I and III. The distribution pattern of bivalves in the waters of Tidung Island is in groups. The value of the Diversity Index in the study area is classified as moderate (2.06 – 2.12). The uniformity index value during ranged from 0.80 – 0.82 wich is included in the balanced category. The dominance index between stations is different with a value range of 0.25 – 0.28 which means that no species dominates at each station
Effect Nitrobacter with Different Dosage of Water Quality Parameters for Maintenance Media of North African Catfish (Clarias gariepinus) Saputra, Alif; Hasibuan, Saberina; Syafriadiman, Syafriadiman
Jurnal Perikanan dan Kelautan Vol 29, No 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.86-93

Abstract

North African catfish (Clarias gariepinus) is a food ingredient with high protein content, so it is needed as a source of nutrition. In intensive catfish farming activities, there are constraints on water quality. The high stocking density causes a high value of ammonia. In addition, Nitrobacter, in an intensive aquaculture system, is expected to improve water quality. Especially ammonia, so that it can increase the growth and survival of fish. This study aims to determine the effect of Nitrobacter with different doses on the maintenance of North African catfish. This research was conducted from September to October 2022 at the Aquaculture Environmental Quality Laboratory, Department of Aquaculture, Faculty of Fisheries and Marine, Universitas Riau, Pekanbaru. The research method used in this study was a completely randomized design (CRD) 1 factor with five treatment levels and three replications. The treatment in this research is P0: Dosage Nitrobacter 0 mL/L, P1: Dosage Nitrobacter 0.5 mL/L, P2: 1 mL/L, P3: 1.5 mL/L, and P4: 2 mL/L. Giving Nitrobacter is done once a week according to the dose of each treatment. This research was conducted for 30 days. The research results show that dosing Nitrobacter has different effects on reducing ammonia levels and maintaining North African catfish. The best treatment was P3 1.5 mL/L with the smallest ammonia content of 0.0403 mg/L. a specific growth rate of 0.98%. An absolute growth rate of 0.76 g, an absolute length of 1.06 cm, and a survival rate of 81.4%. The value of water quality during the research was 29-300C, pH 6.5-7.0, and DO 2.9-3.3 mg/L. The value of water quality during the study was good enough to support the survival of North African catfish
Estimating Return to Scale Production of Seaweed Farming in Tarakan City Machmuddin, Nurlela; Anisa, Anisa; Djafar, Rayhana; Situmorang, Sawitania; Khaerunnisa, Khaerunnisa
Jurnal Perikanan dan Kelautan Vol 29, No 2 (2024): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.2.245-250

Abstract

The development of seaweed cultivation by farmers cannot be separated from production factors such as capital, seeds, labor, and land area, which greatly support the success of seaweed cultivation. This study aims to analyze the factors affecting seaweed production and how to return to scale. The research was conducted in Pantai Amal Village. The number of samples in the study was 59 seaweed farmers using the incidental sampling method. The data analysis technique used multiple linear regression analysis in the form of the Cobb-Douglas function logarithm using the SPSS 26 software. The results showed that simultaneously the capital factors (X1), seeds (X2), labor (X3), and land area (X4) jointly affect the production (sig=0.00). Only the farmer's capital partially showed a significant effect (0.00) smaller than the significance level of = 0.05. The business scale has shown increasing returns to scale with a coefficient value of 1.15, which means that all inputs used in production are increased by 1. The resulting production will be increased by 1, and the resulting production will increase by a more significant proportion, namely 1.15. Thus, seaweed farmers’ use of production factors is efficient
Analysis of Fish Cultivation Business in Rapid Pools in Nagari Lubuk Basung, Agam District, West Sumatra Province Fernando, Putri Deniya; Zulkarnaini, Zulkarnaini; Hendrik, Hendrik
Jurnal Perikanan dan Kelautan Vol 29, No 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.18-26

Abstract

The research was carried out in 2023 at Jorong I Siguung Nagari Lubuk Basung, Agam Regency, West Sumatra with the aim of knowing non-financial feasibility and analyzing the financial feasibility of fish farming in a fast-water pond system. The method used in this study was a survey method and the determination of respondents was carried out using purposive sampling. Commercial aspects include the procurement of seeds and feed, prices and marketing as well as the influence of the selling price of fish on fish farming in KAD. The social aspect can see the impact of social and environmental impacts on the surrounding community. The institutional aspect can be seen from the cultivator's relationship with the institutions and institutions in Nagari Lubuk Basung. The institutional aspect can be seen from the cultivator's relationship with the institutions and institutions in Nagari Lubuk Basung. The feasibility value of the goldfish and tilapia cultivation business in KAD is like the investment value of IDR 461,620,000 (goldfish farming) and IDR 289,940,000 (tilapia fish farming).The largest production was for carp ±38 tons/year from 4 ponds, for tilapia ±54 tons/year from 3 ponds. The largest amount of income is IDR 1,152,000,000 (carp) and IDR 1,188,000,000 (tilapia). NPV 10% IDR 2,996,074,627 (10 Years), BCR 1.54, IRR > 26% business can be developed from this value
The Economic Impact of CPO (Crude Palm Oil) Industry Development on the Lives of Fishermen Communities in Lubuk Gaung Village, Dumai City Octavianti, Mila; Warningsih, Trisla; Nugroho, Firman
Jurnal Perikanan dan Kelautan Vol 29, No 2 (2024): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.2.184-189

Abstract

As much as 90% of the fisheries industry in Dumai City comes from capture fisheries. The capture fisheries industry is a crucial industry that requires more attention from the government because of its enormous potential. Every year, there is a decrease in the number of fishing households in Dumai City. The reason is the uncertainty of income received and the existence of other business sectors. Fishing communities depend on fisheries resources for their livelihoods. However, the fishing profession in Dumai City is susceptible to changes around it, including changes due to the development of the CPO industry. This study was conducted to analyze the economic impact of the CPO Industry's development on the Lubuk Gaung Village fishing community. This research uses a quantitative survey method, followed by quantitative descriptive data analysis and hypothesis testing with a paired sample t-test. The fishing community in Lubuk Gaung Village felt the economic impact of various indicators. Total household income experienced a significant increase of IDR 2,452,880. Total household expenditure also experienced a significant increase, amounting to IDR 1,185,800. Meanwhile, in terms of asset ownership, fishermen have experienced an increase in asset ownership to meet their daily needs since the existence of the CPO IndustryThe Economic Impact of CPO (Crude Palm Oil) Industry Development on the Lives of Fishermen Communities in Lubuk Gaung Village, Dumai City
Study of Coral Reef Distribution in Pejarakan Waters, Bali Using Sentinel-2A Imagery Semedi, Bambang; Rijal, Seftiawan Samsu; Arviani, Dhika Anggi
Jurnal Perikanan dan Kelautan Vol 29, No 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.118-124

Abstract

The existence of coral reef ecosystems in Indonesia is a potential marine resource that needs to be preserved due to the many benefits of the coral reef ecosystem. Utilization of Sentinel-2A imagery for coral reef mapping can be done using two approaches, namely pixel-based and object-based. In this study, pixel-based classification and object-based classification are used to determine the dynamics of the distribution of coral reefs in the waters of Pejarakan Village, Bali, during the dry and rainy seasons. The data used are Sentinel-2A image data for 2018, 2020, and 2022 and field data used for the research accuracy test process. Field data was collected using the purposive sampling method, and the accuracy test process was carried out using the confusion matrix method. The data processing results using pixel and object classification show that classification using the object classification method is considered more accurate than pixel classification because it produces an accuracy value of up to 69.4%. Meanwhile, the pixel classification accuracy value is only 61.1%.
Strategies for Preventing Fishing Vessel Debris Pollution in Tarempa's Coastal Fishing Port, Kepulauan Riau Amir, Amriansyah; Lestari, Febrianti; Ismail, Khodijah; Syakti, Agung Dhamar
Jurnal Perikanan dan Kelautan Vol 29, No 2 (2024): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.2.283-290

Abstract

Research has been conducted on the prevention strategy of fishing vessel waste pollution carried out in April 2024 with the location at Tarempa Coastal Fishing Port. This research aims to formulate a plan for preventing fishing vessel waste at Tarempa Coastal Fishing Port. This research used a survey method with a purposive sampling technique. The data taken in this study are the type and amount of waste from ship activities during mooring, ship maintenance and repair, and maintenance and repair of fishing gear at the Tarempa PPP. The results of observations in the field found that the management done before was only in the form of burning, disposing of garbage in trash cans, hoarding garbage, and some throwing garbage into the sea. Based on the results of the analysis of waste prevention strategies, ten management alternatives were found, including port management needs to establish partnerships with crew members and the community to prevent waste generation at PPP Tarempa, apply rewards for crew members who manage waste well, improve cleaning and waste management facilities at PPP Tarempa, increase routine supervision to prevent waste generation at PPP Tarempa, apply punishment for crew members who pollute the environment, provide counseling and K3 training for crew members at PPP Tarempa, optimize the function of cleaning and waste management facilities at PPP Tarempa
Analysis of Production and Income of Fishermen Fishing Tools at Kepenghuluan Sungai Bakau, Sinaboi Sub-District, Rokan Hilir Regency, Riau Province Tamba, Orita Nadia; Hendrik, Hendrik; Sofyani, Tince
Jurnal Perikanan dan Kelautan Vol 29, No 1 (2024): February
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.1.54-59

Abstract

This research was conducted from November to December 2022 to analyze how much influence production factors influence the catch of trawl fishermen and know the income of fishermen who use trawl fishing gear in the Penghuluan Sungai Bakau, Sinaboi District, Rokan Hilir Regency Riau Province. The method used in this study was a survey that determined the sample using the total sampling or census method. The number of samples taken was 32 fishermen who used trawl fishing gear. The results of this study are the size of the ship and the length of time at sea affect the production of fishing trawler catch haul. In contrast, the number of crew members and experience at sea has no significant effect on fishing production with trawl fishing gear. The total net income or profit earned by fishermen is calculated for 20 trips/month, fishermen using 2 GT vessels amounting to IDR 25.496.044 and those using 3 GT vessels amounting to IDR 22.258.057 in peak season. In the middle season, fishermen's income is calculated for 20 trips/month using 2 GT vessels of IDR15.014.933 and those using 3 GT vessels of IDR12.386.628
Analysis of the Floating Net Cage Business for Tilapia (Oreochromis niloticus) at Lake Maninjau Nagari Tanjung Sani, Tanjung Raya District, West Sumatra Province Harahap, Stepandi; Hendrik, Hendrik; Yanti, Chicka Willy
Jurnal Perikanan dan Kelautan Vol 29, No 2 (2024): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.2.217-221

Abstract

Lake Maninjau has been developed with the floating net cage (KJA) system for aquaculture. In 2020, the number of KJA decreased by 0,03%, but in 2021, the number of KJA increased by 9,5%; this shows that the cultivator community still maintains the tilapia KJA business. This situation makes the author want to know the investment amount, income, and business. This situation makes the author want to know the investment amount, income, and business feasibility. The method used was a survey, while the respondents were determined deliberately on five KJA cultivators with ten bags and five KJA cultivators with 20 bags. The results showed that the KJA with ten bags had an investment of IDR 626,864,000, an IDR 825,600,000/year income, and an IDR 227,346,334/ year profit. Meanwhile, KJA has 20 bag units, an investment of IDR 1,276,100,000, an income of IDR 1,684,800,000/year, and IDR 490,695,668/ year. Based on the analysis results, the investment criteria were obtained for KJA with 10 RCR bag units (1.38), FRR (36.26), PPC (2.76) and for KJA with 20 RCR bag units (1.41), FRR (38, 45), PPC (2.60). The calculation of the RCR is more than 1, the FRR is greater than the BRI bank interest rate of 6.4%, the PPC is less than the maximum time required, and the economic life of the equipment used for the tilapia KJA business is two years and seven months, then the KJA fish business tilapia worth to run
Abundance and Chlorophyll-a Content of Spirulina sp in Given Different Light Intensity Media’s Sari, Sri Nadila; Syafriadiman, Syafriadiman; Hasibuan, Saberina
Jurnal Perikanan dan Kelautan Vol 29, No 2 (2024): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.29.2.152-161

Abstract

Spirulina sp is one of the organisms used because it has twice the chlorophyll content of the alfalfa plant, the chlorophyll of which has previously been explored. Chlorophyll-a is a photosynthetic pigment, and light is very influential in photosynthesis in microalgae cultivation because light is a crucial part of the photosynthetic pigment as a source of energy for microalgae life. The purpose of this research is to get the best light intensity. This research started in September 2022 at the Aquaculture Environmental Quality Laboratory, Faculty of Fisheries and Marine, Universitas Riau. This study used a one-factor, Completely Randomized Design (CRD) method with five treatments and three replications. The treatment in this study was the light intensity consisting of P0: without giving light, P1: 2.974 lux, P2: 4.274 lux, P3: 5.575 lux, P4: 6.877 lux. The results of this study indicate that light intensity affects the locking of Spirulina sp. The best treatment was a light intensity of 4.274 lux with a cell density of 327.176,2 ind/mL with a chlorophyll-a content of 0.4 µg/mL with a range of water quality parameters that were optimal for the growth of Spirulina sp temperature value 28-31, pH 7-8.5, DO 5-7.5

Page 38 of 94 | Total Record : 938

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