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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 40 Documents
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Search results for , issue "Vol. 27 No. 2 (2022): June" : 40 Documents clear
Utilization of Cabbage as an Artificial Feed Material for Pearl Catfish (Clarias gariepinus) Fry Growth Komsanah Sukarti; Henny Pagoray; Andi Nikhlani
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.192-200

Abstract

Pearl catfish has the main advantage of fast growth. To maximize this growth, one of the things that must be considered is the feed given. The use of factory feed for catfish seeds is common, so it is necessary to use feed raw materials that are around to be used as raw materials for homemade feed. Vegetable waste such as cabbage and tofu dregs can be used as fish feed which is processed into pellets. Cabbage vegetable waste, tofu dregs, bamboo shoots and bran have protein and carbohydrates that can be used for fish growth. This study consisted of 2 stages, namely stage 1 analyzing the comparison between factory feed and homemade feed and stage 2 analyzing the difference in dosage of homemade feed on the growth and efficiency of pearl catfish (C. gariepinus) seed feed. Data were analyzed using 2 independent samples (unpaired) t-test and ANOVA test. The results showed that the provision of factory feed and homemade feed did not have a significant effect on the growth of length, weight, and feed efficiency of catfish fry. Catfish seeds can be fed homemade feed with ingredients from fermented cabbage waste, tofu dregs flour, rebon flour, bran flour, plus vitamins and minerals. The results of the analysis of variance in the treatment of different feed doses (4%, 5%, 6%, 7%, and 10% per fish body weight), had a significant effect on the growth of catfish length and weight, and had no significant effect on feed efficiency. The higher the dose given for the maintenance period of 30 days of catfish fry gave a good effect with the best dose of 10% per fish body weight.
Business Economic Feasibility and Fishermen Bagan Perahu (Lift Net) in Pelita Jaya Bay of Maluku Province Hartono Nurlette
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.201-208

Abstract

Bagan Perahu (Lift Net) is a fishing business that requires a large investment value. The income of this business is uncertain because it relies heavily on catches and the fish season. The risk of uncertainty will affect business income and fishermen's income. This study aims to analyze the economic feasibility of fisheries and fishermen's businesses in Pelita Jaya Bay West Seram Regency, Maluku. The method used in this study is a survey. The results showed that the business carried out is still very profitable, seen from the business income earned by the owner, which is Rp68,548,000/year. Financial analysis shows the value of NPV over the next ten years amounting to Rp241,568,753; the value of IRR is still above the current bank interest rate of 42.98% and the net value of B/C>1, which is 2.58. The average monthly fishermen's income amounted to Rp1,288,311, and the existing income is still far below the UMR of Maluku Province. This is certainly not economically viable.
Effect of Temperature on Larval Quality and Growth Gouramy (Osphronemus gouramy) Nurul Hidayah; Nunik Cokrowati; Alis Mukhlis
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.209-218

Abstract

Gouramy (Osphronemus gouramy) is a freshwater fishery commodity with a large enough demand and a fairly expensive price compared to other freshwater fish. The purpose of this study was to determine the effect of temperature on larval quality and growth of gouramy fry. The research method used is an experimental method using a Completely Randomized Design (CRD) consisting of two treatments of water media temperature, namely 1) Treatment A = The temperature of the media follows room temperature (control treatment), and 2) Treatment B = The temperature of the medium was set constant at a temperature of 30ᵒC. Each treatment was repeated six times to obtain 12 experimental units. Research parameter data were analyzed statistically using variance (ANOVA) at a 95% confidence level using the t-test. The results showed that the degree of hatching of gouramy eggs, larval size, absolute growth, relative growth, daily specific growth rate and survival rate of gouramy larvae at room temperature and 30°C were 90.38% and 98, respectively. 76%; 0.54 cm and 0.66 cm; 0.86 cm and 0.87 cm; 157.52% and 133.26%; 3.99% and 3.58%; and 74.78% and 91.22%. The study concluded that eggs incubated at room temperature (25-28°C) and 30°C gave significantly different effects on hatching rates and post-hatching larvae size. Larval rearing at room temperature and 30°C gave no significant effect on absolute growth but significantly different on relative growth, daily specific growth rate and survival rate.
The Effect of Addition Boster Manstap to Density Cell of Chlorella sp Silvia Delilla; Syafriadiman syafiadiman; Saberina Hasibuan
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.219-226

Abstract

This research was conducted in August – September 2020, at the Quality of Aquaculture Laboratory, Fisheries and Marine Faculty, Riau University. The purposed of this study was to see the effect of addition booster manstap to density cell of Chlorella sp. and the best dose for cultures of Chlorella sp. The research uses a completely randomized design (CRD) with one factor, four treatments, and three replications. The treatment in this study was the use of different booster manstap doses (BMD), namely P0 (control), P1 (25 ppm BMD), P2 (30 ppm BMD) and P3 (35 ppm BMD). The result of this research showed the best treatment is P3 (35 ppm BMD) with a cell density of 1176,67 x 104 cells/ml, a specific growth rate of 0,25/day and the highest peak density occurred on day 6. The quality of water value at the time of the research was temperature 29-330C, pH 7-8,3, DO 6,6-7,9 ppm, nitrat 1,5-12,7 mg/L dan posfat 1,70-5,91 mg/L. The quality of water value was good for cultures of Chlorella sp.
Seagrass Condition in the Waters of Ory Village, Haruku Island, Central Maluku District Roos Nilawati Marasabessy; Wilda Fesanrey; Amaliah F Ambon; Susiati Susiati
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.227-234

Abstract

Research on the condition of seagrass communities in the waters of Ory village is important to do as a basis for management strategies and data on seagrass meadow conditions. The purpose of this study is to find out the current seagrass conditions (2021) and to find out the structure of the seagrass meadow community formed and the biota associated with seagrass in Ory waters. This research was conducted in June-August 2021 in the waters of Ory village of Haruku Island, Central Maluku District. The sampling technique in this study is based on the use of the square transect line method. Seagrass sampling is done at low tide using a square of 0.5 x 0.5 m with the size of each plot of 0.1 x 0.1 m as much as 25 plots. The data analysis method for occurence frequency calculation, type coverage, while to know seagrass conditions. Based on the results of the study, there are 5 types of seagrass in the waters of Ory village, namely Thalassia hemprichii, Enhalus acoroides, Cymodocea rotundata, Halophila ovalis, and Halodule pinifolia. The density value of seagrass in the waters of Ory village is 322 shoots / m2 (very tight), the frequency of Enhalus acoroides species is more widespread than other types, and the covering value of seagrass is 98.45% (good, healthy / rich). The highest INP is in the Enhalus acoroides, and the biota species associated with seagrass are A. granosa, Linckia laevigata, P. nododsus, and Holothuria scabra
Microplastic Identification of Tinfoil Barb (Puntius schawanafeldii) in Koto Panjang Dam Kampar Regency Riau Province Lily Sherly Margaretha; Budijono Budijono; Muhammad Fauzi
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.235-240

Abstract

Plastic waste can be found everywhere, including in the Koto Panjang Dam. As the plastic waste degraded, the microplastic materials may be distributed in the water and it may be accidentally swallowed by omnivorous fishes such as Puntius schawanafeldii. To understand the presence of the microplastic materials in the fish stomach, a research has been conducted in December 2020 - February 2021. The number of P. schawanafeldii captured was 30 using fish net in 3-5 inch mesh size. The fish was dissected and the stomach was removed. Then the stomach content was added with 10% KOH and was incubated for 2 weeks to delute the organic materials. Then was investigated under a binocular microscope to find out the microplastic materials. Results shown the type of microplastic present in the stomach of P. schawanafeldii was namely film, fibre, and fragment. The most common type of microplastic found was film, followed by fragments and fibre. The abundance of microplastic in the stomach of P. schwanafeldii was around 2 – 15,8 particles/fish.
Phytochemical Compound Identification of Mangrove Leaves Sonneratia alba and in Silico Analysis as Antidiabetic Yunita Eka Puspitasari; Hardoko Hardoko; Titik Dwi Sulistiyati
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.241-248

Abstract

Mangrove plant, Sonneratia alba, can be found abundantly in Indonesia. Some previous studies reported phytochemical screening and bioactivity test of Sonneratia sp. as anti-diabetic (in vitro and in vivo analysis). However, phytochemical identification of S. alba leaves and inhibitory activity of α-glucosidase as anti-diabetic have not been reported. The purpose of this study are to identify phytochemical compounds of methanolic extracts S. alba leaves, and to predict inhibitory mechanisms of S. alba leaves against α-glucosidase through in silico analysis. In this study, the research method consists of two steps namely identification phytochemical compounds of methanolic extracts S. alba leaves, and prediction inhibitory activities of phytochemical compounds of methanolic extracts S. alba leaves against α-glucosidase by molecular docking (in silico) analysis. Methanolic extracts S. alba leaves contained orientin, vitexin, luteolin, oleanolic acid and reserpine. Reserpine was identified for the first time in S. alba leaves. Based on in silico analysis, binding energy of orientin, vitexin, luteolin, oleanolic acid, reserpine and acarbose (positive control) against α-glucosidase were -9,7; -9,7; -9,2; -8,6; -10,0 dan -8,3 kcal/mol. This result indicated that compounds inhibited α-glucosidase activities and can be considered as antidiabetic agent.
The Combination Human and Cow Feces Biofertilizer to Improve the Soil and Water Quality in Pond of Pangasianodon hypophthalmus Christine Natalina; Syafriadiman syafiadiman; Saberina Hasibuan
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.249-255

Abstract

Research was conducted from November to December 2019 at the peatland of Kualu Nenas Village, Tambang District, Kampar District, Riau Province. The purpose of this research is to get a comparison of the concentrations human and cow biofertilizer for chemistry parameter of soil and water. The method used in this study was the experimental method of using the Complete Random Design (CRD) one factor with five treatments and three replication. The treatment used were P0 (Without biofertilizer), P1 (20% human feces biofertilizer + 80% cow feces biofertilizer), P2 (40% human feces biofertilizer + 60% cow feces biofertilizer) P3 (60% human feces biofertilizer + 40% cow feces biofertilizer), P4 (80% human feces biofertilizer + 20% cow feces biofertilizer). The study was using 1x1x1,4 m peat ponds which were filled with 50 fishes that were maintained for 28 days. The results of this study showed a mixture of 80% human feces biofertilizer + 20% cow feces biofertilizer provides the best solution for chemical parameters of soil and water that soil pH is 6,95, N-Total 0,3733%, P-Total 0,6073%, K-Total 0,5133%, KBOT 63,90%, and C/N 23,80 then water temperature were about 27-29 0C, water pH were about 6-7, DO were about 3,6-6,0 mg/L, CO2 were about 20,78-32,97 mg/L, water nitrate were about 0,5150-4,2134 mg/L and orthophosphate were about 1,3047-4,7463 mg/L. The growth of striped catfish that maintained are absolute weight is 17,33 gram, absolute length is 4,433 cm, and survival rate 86%.
Characteristics of Salted Catfish (Pangasius hypophthalmus) with the Addition of Green Tea and Lemongrass Mardalisa Mardalisa; Alqoriffah Hasanah; Mutia Dhiya Amani; Bella Permata
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.256-263

Abstract

This study aims to characteristics the salted catfish after the combination of adding green tea and lemongrass. The research method used a randomized block design (RAK) which involved one treatment factor with 3 repetitions so that there were 12 units. The factors used in the treatment were 3% salt solution, 1% green tea and 0,15% lemongrass. This study stated that there was no significant effect of the four treatment levels on the results of the assessment of yield, ash content, water content, lipid content and protein content in salted catfish produced. Sensory analysis on the appearance, taste, aroma, and texture aspects showed that the treatment result had a significant effect only on the appearance aspect. The best product was found in the X2 treatment (3% salt solution dan 0.15% lemongrass) which resulted in a yield value of 57,25%, ash content 24,42%, water content 2.21%, lipid content 29,53%, and protein content 42,96%. Sensory analysis scores for appearance were 7,33 (whole, clean, lusterless), aroma 6,54 (neutral, little additional odor), taste 6,62 (good, species specific, little taste addition), and texture 6,93 (dense, no brittle).
Screening and Determination of Potential Cellulolytic Bacteria from Mangrove Ecosystem Ummi Mardhiah Batubara; Suparjo Suparjo; Hasna Ul Maritsa; Eko Pujianto; Meli Herlini
Jurnal Perikanan dan Kelautan Vol. 27 No. 2 (2022): June
Publisher : Faculty of Fisheries and Marine, Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.27.2.264-271

Abstract

Mangrove ecosystem is a coastal wetland has biodiversities such as flora, fauna, and microorganisms. Microorganisms are an importants component in the mangrove ecosystem and have many roles, including source the nutrition, decomposer, and a source of biotechnology products. Cellulolytic bacteria are a group of cellulase-producing bacteria capable of breaking down cellulose into glucose monomers. This study aims to screen and determine the diversity of cellulolytic bacteria from the mangrove ecosystem. The research method has been experimental by exploring the cellulolytic bacteria in soil and sediment from the mangrove ecosystem. Three sampling locations were selected such as the litter soil, soil in the root, and soil in the tidal area. The screened of potential bacteria-producing cellulase was obtained by bacteria growth on Carboxy Methyl Cellulose (CMC) agar medium. The isolates were cultured for 48 hours at 37°C. Then, the bacteria that produced the cellulolytic activity were characterized by morphological and physiological characteristics. The results were adjusted according to Bergey's Manual of Determinative Bacteriology. The determination showed that six isolates had the same characteristics as Bacillus, Cellulomonas, Lactobacillus, and Micrococcus. The cellulolytic activity index showed that three isolates were sequentially MS06 (9,73), MS03 (6,30), and MS08 (5,41).

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