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Ronal Kurniawan
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Faculty of Fisheries and Marine,Universitas Riau Kampus Bina Widya KM. 12,5 Simpang Baru, Tampan, Pekanbaru 28293 Indonesia
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INDONESIA
Jurnal Perikanan dan Kelautan
Published by Universitas Riau
ISSN : 08537607     EISSN : 27218902     DOI : https://doi.org/10.31258/jpk
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences Energy Materials Science & Nanotechnology Physics
Jurnal Perikanan dan Kelautan (JPK) aims to promote interdisciplinary research and to foster collaboration among researchers from diverse backgrounds. Jurnal Perikanan dan Kelautan (JPK) is committed to publishing high-quality, original research that makes a significant contribution to fields of aquaculture and fisheries encompassing: Aquaculture Aquaculture Nutrition Management Aquaculture Disease and Immunology Fish Biochemistry, Genetics, and Molecular Biology Fish Reproduction, Physiology, and Endocrinology Fishery Resource Habitats and Management Genetic Engineering and Biotechnology of Aquatic Organisms Aquatic Biology, Environment, and Ecology
Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan
Articles 534 Documents
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Types and Abundance of Microplastics in Lokan (Geloina erosa) in the Mangrove Ecosystem of Kedabu Rapat Village, Meranti Islands Putri, Dinda Maharani; Nurrachmi, Irvina; Efriyeldi, Efriyeldi
Jurnal Perikanan dan Kelautan Vol. 30 No. 3 (2025): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

One of the current problems for coastal areas is the high level of plastic waste. This waste degrades into microplastic particles, which can threaten the life of marine biota, including the lokan (G. erosa). Lokan (G. erosa) is used as a bioindicator to study the type and content of microplastics in the mangrove ecosystem. The purpose of this study was to analyze the differences in microplastic abundance between stations and microplastic content between sea turtle sizes, as well as the relationship between shell length and meat weight with microplastic content. This study was conducted from December 2024 to February 2025 in Kedabu Village, Meranti Islands Regency, which directly borders the Malacca Strait. The survey method was used, purposive sampling at three stations: the conservation mangrove area, the mangrove area near the fishing port, and the mangrove area near the settlement. Sea turtles were taken during low tide, each one using a machete. Individual per station. The study results showed that three types of microplastics were found in the lokan (G. erosa): fiber, film, and fragments, with an average of 32.73 particles per individual. There was a significant difference in microplastic content between small and large sea turtles, but microplastic abundance between stations did not differ significantly. The highest microplastic abundance was found at Station 1 (11,331 particles/g). Shell length and meat weight showed a moderate positive relationship with microplastic content
Financial Feasibility Analysis of Crab (Portunus pelagicus) Fishing Business in Pasir Limau Kapas District, Rokan Hilir Regency Zulhami, M; Arief, Hazmi; Yolandika, Clara
Jurnal Perikanan dan Kelautan Vol. 30 No. 3 (2025): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Pasir Limau Kapas District is a coastal area in Rokan Hilir Regency, known for its unique character as a center for traditional fishing. Crab production in this District in 2018 was recorded at 486 tons, then increased to 512 tons in 2019, and 527 tons in 2020. In 2021, there was a slight decrease to 498 tons due to extreme weather that affected fishing strength, but it increased again to 538 tons in 2022. This study was conducted in February 2025 at Pasir Limau Kapas District, Rokan Hilir Regency, aiming to calculate the investment, total costs, income, and profits, and to analyze the financial feasibility of the crab fishing business. The method used in this study was a survey method with a total of 35 crab fishermen as respondents. The study results indicated that the average investment spent by fishermen was IDR 17,430,722.69. Total costs are IDR 92,105,356.14/year, revenue is IDR 104,996,571.43/year, and profit is IDR 12,891,215.29/year. The chopped crab fishing business demonstrates good economic feasibility. With an R/C Ratio of 1.14, this business generates revenues greater than the costs incurred. The return on investment (ROI) of 14% indicates that this business provides moderate profits compared to the total costs incurred. The payback period (PPC) of 1.35 years, or approximately 1 year and 4 months, is relatively fast, allowing fishermen to recover their initial investment relatively quickly. Although it does not generate significant profits, this business can be a sustainable source of livelihood for fishermen because it meets the required business feasibility parameters.
Potential and Utilization Rate of Indian Scad (Decapterus russelli) Landed at UPTD Fishery Port Region I, Carocok Tarusan, West Sumatra Province Ukhwatul, Vify; Brown, Arthur; Zain, Jonny
Jurnal Perikanan dan Kelautan Vol. 30 No. 3 (2025): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.30.3.288-296

Abstract

The utilization of Indian scad (Decapterus russelli) in Carocok Tarusan has made an important contribution to fishing activities, but data on the potential and rate of utilization are limited. The research aims to determine the potential and level of utilization of indian scad (Decapterus russelli) landed at UPTD Fishery Port Region I, Carocok Tarusan, West Sumatra Province. The research was conducted in December 2024 using secondary data from the institution on catch and fishing efforts for 2019-2023. Methods used are Catch Per Unit Effort (CPUE) and surplus production models of Schaefer and Fox to estimate the maximum sustainable yield (MSY) and optimum fishing effort (f-optimum). According to the analysis results, the Fox model is the most suitable model to describe the stock status and management of indian scad in this region. MSY was estimated at 234,653.74 kg/year with an optimum effort of 1,902 trips/year. Total allowable Catch (TAC) was 187,722.99 kg/year. The average utilization rate was 97%, which shows that the Indian scad stock is fully exploited. Meanwhile, the average level of effort at 110% showing that fishing effort exceeds the optimum level, meaning that more careful management is needed to ensure the sustainability of the stock
Optimisation of the Use of Cultivation System Technology to Increase Tilapia (Oreocromis niloticus) Production in Intensive Cultivation in the Era of Modernisation Santikawati, Susi; Batubara, Lenni Wahyuni
Jurnal Perikanan dan Kelautan Vol. 30 No. 3 (2025): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.30.3.409-414

Abstract

Tilapia (Oreochromis niloticus) is one of the main commodities in freshwater aquaculture because it is highly adaptable and easy to breed. In intensive aquaculture systems, production success is highly dependent on fish growth, which is closely related to feed availability and water quality. This study aims to analyze the effectiveness of modern aquaculture technologies, namely the biofloc system, aquaponics, and the Recirculating Aquaculture System (RAS), in supporting the success of tilapia aquaculture. The research was conducted in August 2025 at the Freshwater Aquaculture Center of the Sibolga College of Fisheries, North Sumatra. The research method used a completely randomised design with four treatments and three replicates. The results showed that the aquaponics technology (P3) produced the highest absolute weight growth (9.97±0.02 g), specific growth rate (4.26±0.00%/day), and absolute length (1.77±0.06 cm), followed by RAS (P2), control (P0), and biofloc (P1). The survival rate across all treatments ranged from 95.33% to 97.33%, indicating Tilapia's good adaptability to various farming systems. Water quality parameters were within optimal ranges: 29-30°C, pH 6.1-7.6, dissolved oxygen 4.5-5.0 mg/L, and ammonia 0.0001-0.0005 mg/L. The aquaponic system showed the most stable water quality with the lowest ammonia concentration (0.0001-0.0003 mg/L). This study demonstrates that aquaponic technology provides the best treatment for modernised intensive tilapia farming

Page 54 of 54 | Total Record : 534

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