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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 10 Documents
 1 
Search results for , issue "Vol 26, No 3 (2021)" : 10 Documents clear
Effectiveness of Egg Stimulant® and Oodev® for Maturation of Tilapia (Oreochromis niloticus) PB, Andre Ramadhan; Sarida, Munti; Adiputra, Yudha Trinoegraha
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.176-184

Abstract

Lack of distribution, inbreeding depression and environment factors were several negative impacts to tilapia fry quality. It is needed to enhance fry quality by increasing reproduction performance of broodstocks with nutrient and hormonal by using Egg stimulant® and Oodev®. This research purposed to evaluate maturation process with Egg stimulant and Oodev application and effective doses to increase reproduction performance of female tilapia broodstocks. This research conducted within two months at Unit Pelaksana Teknis Dinas Perikanan Budidaya Air Tawar (UPTD PBAT) Wilayah Barat Tanggamus. The research design used was a complete randomized designs two factors and two levels with three replications. Control treatment (K) (Egg stimulant feed 0 g/kg and Oodev injection 0 ml/kg), P1 (Egg stimulant feed 3 g/kg), P2 (Oodev injection 0,5 ml/kg) and P3 (Egg stimulant feed 3 g/kg and Oodev injection 0,5 ml/kg) The results showed that P1, P2 and P3 treatments were not significantly different to eggs diameter, gonadal maturation level, gonadal maturation index, relative fecundity, and fertilization rate. However, Egg stimulant and Oodev were functionally enhance reproduction performances of female tilapia broodstock.  It is showed by treatments has better result than control.  The effective doses of Egg stimulant, Oodev or combination need more longer period of research to applying in tilapia husbandry
Pemanfaatan Media Sosial Dalam Pemasaran Olahan Perikanan Di Kecamatan Sanga Sanga Haqiqiansyah, Gusti; Saleha, Qariah; Rahmasari, Rahmasari
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.141-146

Abstract

Social media presence become a basic necessity for the community. Almost all levels of society use this technology. Likewise in the business world. Business actors must race to introduce their products. The use of social media is one of the solutions to speed up business promotion. The purpose of research to determine the perceptions and types of use of social media by processed fisheries business actors in Sanga Sanga District. Methods of collecting data were observation and interviews. Samples were taken by means of a census of 11 people. Data were tabulated and analyzed descriptively. To measure the level of perception using a Likert scale. The results showed that the level of perception was in the moderate category (score reached 27.91), meaning that the use of social media in business activities was still not optimal. The types of social media used are Facebook (81.82%), whatsAap (54.55%) and youtube (18.18%).
The Technique of Directing the Sex of Betta Fish (Betta Sp.) Larval Stage (H3, H5, and H7) using Coconut Water (Cocos Nucifera) Rohayati, Cucu; Utomo, Deny Sapto Chondro; Adiputra, Yudha Trinoegraha
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.185-191

Abstract

Betta (Betta sp.) is an anabantidae fish with sexual development that can be directed at the embryonic and larval stages. One way to direct the sex development of these fish is by using hormone therapy using natural ingredients. Coconut water is one of the natural ingredients that can be used because it contains high potassium. This potassium can convert cholesterol in fish body tissue to pregnenolone which will affect the increase in testosterone production. This study aims to determine the best dose and age group in directing the sex of Betta fish experimentally using a randomized block design (RBD) with 4 treatments and 3 replications. The immersion treatment of larvae in the age group of 3 days, 5 days, and 7 days for 15 hours with a dose of 0%, 10%, 20%, and 30% coconut water was carried out in a 3 L jar containing 30 larvae. The results showed that coconut water was able to influence the increase in the percentage of male betta fish (P <0.05) with the highest value at a dose of 30% as much as 86.26 ± 8.34% and the 3 day larvae age group of 72.78 ± 16.03, and have a different effect on other treatments. In addition, the survival calculated after immersion shows a value of 100%, meaning that coconut water does not have a harmful effect on fish. Based on the results of this study, the best treatment for directing the sex of betta fish is a dose of 30% coconut water with the 3 day age group
Sargassum sp. Growth Cultivated with Different Seed Weights on Floating Raft System in Ekas Bay East Lombok Cokrowati, Nunik; Safitri, Wiwin; Diniarti, Nanda
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.147-153

Abstract

Sargassum sp. is seaweed from the group of brown algae belonging to the Phaecophyceae class that can be found in Indonesian. Sargassum sp. contains polysaccharides in the form of alginate which can be used as raw materials and additives in the food, drug, and cosmetic industries. The aim of this study was to analyze the growth of Sargassum sp. which are cultivated with different seed weights on the floating rafts. The research was conducted from November 2020 to March 2021 in Ekas Bay, East Lombok, West Nusa Tenggara. The research method used is an experimental method using a completely randomized design (CRD) consisting of five treatments with four replications. The treatments were differences in the weight of the initial seeds used, namely treatment A (25 g), B (50 g), C (100 g), D (150 g), and E (200 g). Sargassum sp. Cultivation was carried out for a month. The results were the highest absolute weight was in treatment E with 550 g and the lowest occurred in A with 262.5 g. The highest specific growth was in treatment A with 8.13%/day and the lowest was in  E with 4.4%/day. This study concluded that different seedling weights had a significant effect on the growth of Sargassum sp. cultivated using the floating raft method
Effect of Urea with Various Doses on Skeletonema costatum Cell Growth Rosa, Mila; Siregar, Sofyan Husein; Nurrachmi, Irvina
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.192-198

Abstract

This research was conducted in March 2020 at BPBALP Teluk Buo, West Sumatera. This research aimed to determine the best dose for urea usage on S. costatum cell growth. The method used in this research was an experimental method using Completely Randomized Design (CRD) with one factor, which was the various doses of urea fertilizer consisting of five treatments with three replications. Urea various doses used were 0 ppm (control treatment), 40 ppm (treatment A), 60 ppm (treatment B), 80 ppm (treatment C), and 100 ppm (treatment D) totaling 15 treatment units. The tested organism in this research was S. costatum. The container used was a plastic jar with 2 liters capacity. The parameters tested in this research were the maximum cell population density achieved by seven days of maintenance, absolute growth rate, relative growth rate, and specific growth rate. The results showed that the best cell density was found at the treatment D (100 ppm), which was 1,228 x 104 cells / mL and the lowest cell density was in the control treatment (without urea) which was 533 x 104 cells / ml. The results of water quality measurements during the study were still in an adequate range and met the maintenance requirements of S. costatum. The range of water quality parameters were salinity 26-28 ppt,  temperature of 25-27oC, and pH of 8.
Abundance of Phytoplankton in the Peat Soil Media with Given a Mixture of Biofertilizers Nababan, Tri Manda R; Hasibuan, Saberina; Syafriadiman, Syafriadiman
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.154-160

Abstract

This research was conducted from October to November 2019 at the peatland of Kualu Nenas Village, Kampar District, Riau Province. The aim of this research is to get a comparison of the mixture between human waste biofertilizer and cow manure biofertilizer to increased the abundance of phytoplankton. The method used in this study is an experimental method using a completely randomized design (CRD), 1 factor with 6 treatment levels and 3 replications. The treatment used were P0 (without biological fertilizers), P1 (giving a mixture of biological fertilizer 100%), P2 (Biofertilizer mixture 25% human waste : 75% cow manure biofertilizer), P3 (Biofertilizer mixture 50% human waste : 50% cow manure biofertilizer), P4 (Biofertilizer mixture 75% human waste: 25% cow manure biofertilizer), P5 (Biofertilizer 100% human waste). The study was conducted for 28 days, using a dose of 750 g/m2. The results of this research showed that the application of a mixture of biological fertilizers 75% human waste: 25% biofertilizer cow manure gave the best results on the abundance of phytoplankton, namely 28,771 ind/L, the diversity index value (H') was 0.49, the species dominance value (C) was 1.10 and the peak of the population occurred on the 16th day. Water quality parameters measured during the study were still optimal for phytoplankton growth with a temperature of 27-29oC, pH 5-7, DO 3.8-6.7 ppm, nitrate 4.75 mg/L and orthophosphate 3.50 mg/L
The Effect of Sediment Supply from Land on Changes in Bathymetry in the Waters of the Rupat Strait, Dumai City, Riau Province Widuri, Falsabila; Mubarak, Mubarak; Rifardi, Rifardi
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.199-204

Abstract

This research was conducted in February 2021 at the mouth of the Dumai River, Rupat Strait. The purpose of this study was to determine the effect of sediment supply from land on changes in bathymetry in the waters of the Rupat Strait based on the analysis of suspended sediment (SSC) and suspended solids (TSS) divided by the area of the study. The method used is a survey method. The results showed that as much as 26,94 tons/year of sediment entered the Rupat Strait and was distributed in the research area. Each part of the research area has a different bathymetric change value. This is presumably due to oceanographic factors in the waters of the Rupat Strait such as strong and weak river currents when entering the sea, the distance between the research area and the sediment supply source, human activities in each part of the study area, erosion along the river and abrasion at the river mouth. the presence of mangrove forests, dominant sediment types, sloping water topography, the cross-sectional width of the river as a sediment supplier, and suspended solids
Isolation and Screening of Amylolytic and Proteolytic Thermophilic Bacteria from Way Panas Hot Spring, Kalianda, South Lampung Mahestri, Laras; Harpeni, Esti; Setyawan, Agus
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.161-168

Abstract

Amylolytic and proteolitic activity from thermophilic bacteria have been observed from the Way Panas hot springs, Kalianda, South Lampung. This study aims to isolate and screen amylase and protease enzyme-producing thermophilic bacteria and their potential in fisheries. A total of 8 bacterial isolates were examined from the Way Panas hot spring, Kalianda. Each was cultured on selective medium for amylase and protease production. The results showed that 4 bacterial isolates were able to hydrolyze starch (A.WP.50.1, A.WP.50.1, A.WP.50.3, and A.WP.50.4) were able hydrolyze starch and no bacterial isolates had hydrolysis activity against protein. The highest activity of amylolitic was achieved by A.WP.50.4 bacteria isolate. Based on the phenotype, biochemistry assay, and 16s rDNA sequencing, the A.WP.50.4 bacteria isolate have high similarity and identified as Bacillus cereusAmylolytic and proteolitic activity from thermophilic bacteria have been observed from the Way Panas hot springs, Kalianda, South Lampung. This study aims to isolate and screen amylase and protease enzyme-producing thermophilic bacteria and their potential in fisheries. A total of 8 bacterial isolates were examined from the Way Panas hot spring, Kalianda. Each was cultured on selective medium for amylase and protease production. The results showed that 4 bacterial isolates were able to hydrolyze starch (A.WP.50.1, A.WP.50.1, A.WP.50.3, and A.WP.50.4) were able hydrolyze starch and no bacterial isolates had hydrolysis activity against protein. The highest activity of amylolitic was achieved by A.WP.50.4 bacteria isolate. Based on the phenotype, biochemistry assay, and 16s rDNA sequencing, the A.WP.50.4 bacteria isolate have high similarity and identified as Bacillus cereus
Sustainable Tourism Development in Sungai Apit District Riau Province: Mangrove Ecotourism Factors Yoswaty, Dessy
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.205-213

Abstract

One of the efforts to overcome the problem of environmental damage in the mangrove forest ecosystem is the management of mangrove ecotourism. The concept of mangrove ecotourism is a responsible trip to mangrove forest areas for mangrove forest conservation efforts and improving community welfare. This study aims to examine sustainable tourism development in Sungai Apit District Riau Province: mangrove ecotourism factors. The method used in this research is a survey method, which was determined at 4 (four) research locations, namely Mengkapan Village (Station I), Sungai Kayu Ara Village (Station II), Kayu Ara Permai Village (Station III) and Tanjung Kuras Village (Station IV). Each research station consists of three sampling points for measuring the quality of coastal waters. It is obtained an overview of environmental factors that support the growth of mangrove forests. Research activities have been carried out in April-November 2020. The results showed that the mangrove forest ecosystem in the Sungai Apit District Suitable (S2) to be developed as a mangrove ecotourism area with an average IKW value of Station I was 75.39%; Station II of 76.71%; Station III is 78.82% and Station IV is 76.32%. The potential and attractiveness of mangrove ecotourism in Sungai Apit District has been developed by the Siak Regency government. The strategy for developing mangrove ecotourism in Sungai Apit District based on SWOT analysis and interviews is to prioritize the W-O strategy which consists of: 1) Increasing the participation of stakeholders in the management of mangrove ecotourism; 2). Promote effective ecotourism promotion, information and market activities; 3) Improve coordination between stakeholders properly and 4) Improve the quality of human resources through training and education activities.
Growth Performance of White Snapper (Lates calcarifer) with Different Lysine Addition in the Moving Phase Sanjaya, Achmad; Hudaidah, Siti; Supriya, Supriya
Jurnal Perikanan dan Kelautan Vol 26, No 3 (2021)
Publisher : Fakultas Perikanan dan Kelautan Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jpk.26.3.169-175

Abstract

White snapper (Lates calcarifer) is a fish that has high economic value because it has entered a large export market. The obstacle in the cultivation of white snapper is that it requires a higher protein in the threshing phase compared to larger fish to increase the growth performance of white snapper. This study aims to determine the best lysine dose for increasing the growth performance of the white snapper in the threshing phase. The research design method used was a completely randomized design (CRD) with three treatments and three replications. The treatments given were artificial feed without the addition of lysine (KPKM), artificial feed with the addition of 0,15% lysine/kg of feed (KP A), and artificial feed with the addition of lysine 0,35%/kg of feed (KP B) for 56 days. The results obtained in this study were all parameters showed that the results were not significantly different between treatments (p> 0.05) for 56 days of maintenance. This is presumed because the levels of lysine in the formulated feed and the levels of lysine absorbed by the fish in the control treatment were higher than the other treatments. Then for the survival rate, the calculation result is 100% for all treatments. Based on the results obtained, it can be concluded that there is no best lysine dose in this study

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