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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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Improving the Quality of Feed Ingredients Using Enzymes Haetami, Kiki; Abun, Abun
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Commercial feed contributes to the operational costs of aquaculture production activities. On the other hand, making your feed requires formulation and availability of raw materials in maintained quantity and quality. Local feed raw materials can be used as alternative ingredients. Still, one of the obstacles is several limiting factors, such as crude fiber and the binding of some essential nutrients, such as protein and minerals. Hence, nutrient utilization is low and has a direct impact on growth. Adding feed additives as sources of enzymes is considered to help speed up the digestive process so sufficient nutrients are available for growth and survival. Enzymes break down large molecules such as crude fiber starch, increasing protein and fat into forms easily digested and absorbed by fish. This paper aims to review the use of enzymes to improve the quality of fish feed ingredients. The method used is Literature Review. Improving the quality of feed raw materials with the help of enzymes can increase the quality of fish feed ingredients. Application of enzymes in fish feed as additional feed ingredients (feed additives) through the addition of commercial enzymes, enzymes from plant or animal extracts, and microbial enzymes
Economic Valuation of Lapin Beach Tourism in Rupat Utara Sub-District, Bengkalis Regency Siregar, Cici Y. P.; Warningsih, Trisla; Darwis, Darwis
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Bengkalis is one of the districts in Riau Province with a strategic position in developing coastal tourism because it deals directly with international shipping. Lapin Beach is a tourist attraction in the Rupat Utara District, Bengkalis Regency. This research was conducted at Lapin Beach, Tanjung Punak Village, in March 2023. This research aimed to determine the factors that influence the number of visits to Lapin Beach and the economic value of Lapin Beach. The method used in this research is a survey method to provide a detailed description of the background, characteristics, and typical characteristics of a general object or event. Data analysis uses multiple linear regression methods, and travel cost analysis uses the travel cost method approach. The research results show that the factors that influence the number of tourist visits are influenced by travel costs, distance, income, education, and length of time knowing about the existence of the beach, so the consumer surplus value obtained is IDR 251,917,538.8. The total economic value of Lapin Beach is IDR 118,356,787,199.48.
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 : Fakultas Perikanan dan Kelautan Universitas Riau

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

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%.
Distribution of Heavy Metals in Sediments in the Nambo Coastal Waters of Southeast Sulawesi Province Karmila, Karmila; Irawati, Irawati; Haraty, Syamsul Razak
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

A study was conducted on the distribution of heavy metals in sediments in Nambo Beach, Southeast Sulawesi Province, on July 24, 2022. This study aims to determine the content of heavy metals such as Cu, Pb, and Cd in sediments, determine the size of sediment grains, and assess the level of pollution in sediments on Nambo Beach. Determination of station points using a purposive sampling method with 7 station points. The technique used for heavy metal analysis in sediments is the atomic absorption spectrophotometry (AAS) method. The size of sediment grains is determined using a rock comparator, while to determine the level of pollution, the Geoaccumulation Index (I_Geo), Contamination Factor (CF), and Pollution Load Index (PLI) methods are used. The results of the study obtained showed that the highest content of heavy metals was Cu at all stations with values ranging from 0,011-0,0224 mg/L with an average value of 0,014 mg/L and the highest value was at station 1, Pb Metals, with values ranging from 0,001-0,0106 mg/L with an average value of 0,0033 mg/L and Cd with a relay range of 0,001-0,0025 mg/L and an average value of 0,0017 mg/L. The sedimentary grain sizes scattered on Nambo Beach include silt, clay, fine sand, and very fine sand. For testing the level of heavy metal pollution of Cu, Pb, and Cd in sediments, the results of calculations with the category of unpolluted to lightly polluted for all stations were obtained
Growth and Survival of Kissing Gourami (Helostoma temminckii) in Maintenance Media from Liquid Biological Fertilizer Aisyah, Siti; Rusliadi, Rusliadi; Pamukas, Niken Ayu
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

This study aims to determine the growth and survival of kissing gourami (Helostoma temminckii) on a rearing medium given liquid biological fertilizer. This research was conducted from 01 April to 21 May 2022 at the Hatchery, Faculty of Fisheries and Marine, Universitas Riau. The container used was a bucket with a volume of 100 L. This study used a one-factor, Completely Randomized Design (CRD) method with five treatments and three replications. The level of treatment applied in this study was P0 = No treatment, P1 = treatment of 0.01 mL/L water, P2 = treatment of 0.03 mL/L water, P3 = treatment of 0.05 mL/L water and P4 = treatment of 0.07 mL/L. The results showed that applying liquid biological fertilizer with different doses significantly affected fish growth performance (P<0.05). The best treatment was found at a dose of 0.03 mL/L, which produced a range of ammonia (0.0043-0.0163 mg/L), nitrate (0.049-0.189 mg/L) phosphate (0.036-0.072 mg/L), absolute weight growth (10.07 g), absolute length growth (11.31 cm), specific growth rate (1.94%), feed conversion (1.08%) and survival (85, 00%).
The Role of Vitamin C and Thyroxine Hormone (T4) on the Growth of Asian Redtail Catfish (Hemibagrus nemurus) in the Recirculation System Widarsa, Anang; Tang, Usman M; Syawal, Henni
Jurnal Perikanan dan Kelautan Vol. 29 No. 1 (2024): February
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

This research was conducted in January-July 2021 at the Marine Science Technology Biology Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau. The purpose of the study was to see the effect of a combination dose of vitamin C and thyroxine hormone (T4) on the growth rate and survival of bream reared in a recirculation system. The method used was an experimental method using a factorial complete randomized design (CRD) with 2 factors and 3 replicates. The first factor is vitamin C, while the second factor is the dose of tyrrhosine hormone (T4) given during maintenance. The doses of vitamin C used in this study were; 0 mg/kg (V0), 500 mg/kg (V1), 1000 mg/kg (V2). Doses of thyroxine hormone (T4) used were doses; 0 mg/kg (H0), 4 mg/kg (H1), 6 mg/kg (H2), 8 mg/kg (H3). The Asian redtail catfish used were 8-10 cm in size and reared in a round container made of PE plastic with a diameter of 56 cm and a height of 48 cm, totaling 36 units. The pellets used were Hi-Provite 781-2 with 31% protein, with feeding done 3 times a day ad satation. The results showed that the addition of vitamin C and thyroxine hormone influenced the growth of Asian redtail catfish reared in the recirculation system. The combination of vitamin C 1000 mg/kg and thyroxine hormone 8 mg/kg feed gives the highest growth and survival, seen from the absolute weight growth rate of 12.97 g, specific growth rate of 1.93 g/day, and 95% survival. Water quality during rearing was favorable for the growth of Asian redtail catfish, with temperature ranging from 28-30oC, pH 6.5-7.0, and DO 4.2-5.95 ppm.
Financial Analysis of Eucheuma cottoni in Bontang Kuala Village, Bontang City Fitriyana, Fitriyana; Helminuddin, Helminuddin; Ningsih, Etik Sulistiowati
Jurnal Perikanan dan Kelautan Vol. 28 No. 3 (2023): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Research analysis of the Eucheuma cottoni seaweed cultivation business was conducted in July-September 2022 located in Bontang Kuala Village, Bontang City. The purpose of this study was to analyze the E.cottoni seaweed cultivation business financially by calculating production costs, revenue, and profits from the E.cottoni seaweed cultivation business, and analyzing the feasibility of E.cottoni seaweed cultivation business in Bontang Kuala Village, Bontang City. The selection of the location of this research was carried out intentionally with the consideration that there were E.cottoni seaweed cultivation business actors in Bontang Kuala Village, Bontang City, and the determination of respondents was carried out by census. Date using analysis with the formula Total cost (TC), Revenue or gross income (TR), profit analysis (π), Financial analysis Net Present Value (NPV), Net Benefit Cost Ratio (Net B/C), Internal Rate of Return (IRR), and Payback period. The results showed that the investment value incurred by E.cottoni seaweed cultivators was 77,726,000 with the largest investment cost being the drying floor of IDR 30,000,000 and the smallest investment cost being a knife of IDR 24,000. The revenue obtained by E.cottoni seaweed cultivators was 345,600,000/year with the selling price of dried seaweed at the time of this research carried out at IDR 8,000/kg of the amount of dried seaweed production of 34,560 kg/year. NPV obtained from the calculation of 429,564,890. Net B/C generated in the seaweed cultivation business in Bontang Kuala Village is 6.53. The IRR value obtained is 137%. The payback period (PP) value obtained based on calculations is 1.5 years or 18 months. Based on the calculation obtained NPV>0, Net B / C>1, IRR>OCC (3%) seaweed cultivation in its business in Bontang Kuala Village the development of its business is feasible and can be continued because it can still cover the operational costs incurred and make a profit.
Comparison of Bottom Gillnet Catches with Different Mesh Sizes in the Waters of Sungai Jambat Village, Sadu District Ardiansyah, Ardiansyah; Nelwida, Nelwida; Sulaksana, Indra; Alwi, Yun; Lisna, Lisna; Farizal, Farizal
Jurnal Perikanan dan Kelautan Vol. 28 No. 3 (2023): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

Sadu District is located in East Tanjung Jabung Regency and consists of 9 villages, one of which is Sungai Jambat Village which is characterized by turbid, wavy, muddy, and sandy waters. The majority of fishermen in Sungai Jambat Village use bottom gillnet fishing gear with a mesh size of 3.5 inches and 4 inches. The purpose of this study was to compare the catches of bottom gillnet with mesh sizes of 3.5 inches and 4 inches in the waters of Sungai Jambat Village. The method used in this research is the experimental fishing method. The data collected includes environmental parameters, catch per species (head), and number of catches (head), weight per species (kg), and the total weight of catch (kg). The data analysis used is the descriptive analysis of an independent sample t-test. The results showed that the 3.5-inch mesh treatment was significantly higher than the 4-inch mesh treatment (p<0.05) in terms of the number and weight of bottom gillnet catches. In the 3.5-inch mesh size, the catch was 3,067 individuals with a weight of 248.40 kg, and the number of catches in the 4-inch mesh size was 2,820 individuals with a weight of 234.60 kg. The highest number of catches was leaftail croaker found in a 3.5-inch mesh size of 1,393 individuals, and mantis shrimp was the heaviest catch in a 3.5-inch mesh size weighing 69 kg. Pomfret is the lowest catch in terms of quantity and weight. The conclusion of this study in terms of the number and weight of catches with a 3.5-inch mesh size is higher than the 4-inch mesh size.
Application of Photoperiod Manipulation and Type of Feed on the Growth and Survival of Clarias gariepinus Fry Pandiangan, Dian Pramanda; Suharman, Indra; Aryani, Netti
Jurnal Perikanan dan Kelautan Vol. 28 No. 3 (2023): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

African catfish (Clarias gariepinus) is a freshwater fish that has the advantages of fast growth, high economic value, adaptability to environmental changes, and easy marketing. This study aims to analyze the growth rate, survival rate, and nutritional content of African catfish after being treated with photoperiod and different types of feed. The research was conducted from September to December 2022, at the Fish Health Laboratory at the Matauli Marine and Fishery College, Central Tapanuli. The method used is an experimental method by applying a Completely Randomized Design Factorial, two factors, and three replications. The first factor is the photoperiod (B), namely natural (B1), 18 hours dark 6 hours light (B2), 24 hours dark (B3), and the second factor is the type of feed (A), commercial feed (A1) and maggot (A2). The test fish used were obtained from the Central Tapanuli Fish Cultivation Seed Center measuring 16.01±0.02 cm and weighing 30.00 ± 0.00 g for a total of 126 individuals. Fish were reared for four weeks in rearing containers with a stocking density of 1 fish/10L. Feed is given four times a day, namely at 06.00, 12.00, 18.00, and 24.00 ad satiation. The results showed that photoperiod manipulation and different types of feed affected the growth and survival of African catfish fry (p<0.05). The combination of photoperiod 24 hours dark and maggot feed (B3A2) gave the best results on absolute weight growth of 22.70g, absolute length of 2.56 cm, a specific growth rate of 2.01%/day, a survival rate of 100%, and nutritional content of fish meat such as protein of 18.97%, 8.68% fat, 0.73% fiber, 1.54% ash, and 80.26% water
Marketing Strategy for Processed Smoked Fish at Sipujuk Farm Ikur Koto Panjang, Koto Tangah, Padang West Sumatra Srilona, Mersy Applika; Warningsih, Trisla; Yulinda, Eni
Jurnal Perikanan dan Kelautan Vol. 28 No. 3 (2023): October
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

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

Abstract

This research was conducted in May 2022 in Ikur Koto Panjang Village, Koto Tangah District, Padang City. This research aims to analyze internal and external factors and marketing strategies in Sipujuk Farm; the internal factors in question are strengths and weaknesses, while external factors are opportunities and threats to the smoked fish marketing strategy at Sipujuk Farm. The method used in this research is the survey method by conducting interviews directly in the field and collecting data by filling out questionnaires. Respondents totaled nine people who were taken by purposive sampling with predetermined criteria. Data analysis techniques using SWOT analysis try to describe and analyze the level of advantages, disadvantages, opportunities, and threats as well as what kind of marketing strategies should be carried out by businesses in Sipujuk Farm Padang in marketing them. The results of this study are from the results of the analysis of internal factors obtained weighting score value on smoked fish business Sipujuk Farm Padang, namely for internal 2.89 and analysis of external factors received weighting score value on smoked fish business Sipujuk Farm Padang, namely 1.96. The strategy prioritized in the Sipujuk Farm smoked fish business is in the position I (aggressive strategy) to grow and develop, namely the SO strategy. These strategies include Maintaining product quality, expanding target marketing, utilizing certain parties when visiting to introduce smoked fish businesses both on social media and the real world, product quality that has the characteristic of being a differentiator from other smoked fish and a place of business that carries out overall fishery activities and maintains the image or image of the Sipujuk Farm Padang smoked fish business.

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