Fermented herbs made from turmeric, ginger, and kencur have the potential as antimicrobials and immunostimulants that can increase appetite and reduce fish stress due to changes in water quality. The research was conducted from June 2024 to April 2025 at the Fish Disease and Parasite Laboratory, Faculty of Fisheries and Marine Science, Riau University. This study aims to determine the best freq…
Jungga lime (Citrus jambhiri L.) is a natural ingredient that can be used as a feed additive due to its content of alkaloids, saponins, tannins, flavonoids, and vitamin C wich are antibacterial. This study was conducted from August 2024 until April 2025 at the Laboratory of Fish Disease and Parasites, Faculty of Fisheries and Marine, Riau University. This study aims to determine the best dose o…
Hoven’s carp (Leptobarbus hoevenii) is an economically valuable native Indonesian species favored by consumers. Its increasing demand highlights its potential as a leading aquaculture commodity. However, growth during the larvae stage is relative slow due to the underdevelopment of digestive organs. One alternative to improve nutrient absorption from feed is the addition of bromelain enzyme i…
Jungga lime (Citrus jambhiri L.)/Sundai acid/Limau kuit is a natural ingredient that contains alkaloids, saponins, steroids, tannins, flavonoids, ascorbic acid, essential oils, and limonene which are antibacterial. This research was conducted from August 2024 until April 2025 at the Laboratory of Fish Diseases and Parasites, Faculty of Fisheries and Marine,RiauUniversity. This research aimed to…
Ompok hypophthalmus is one of the endemic fish species of Riau. It has high economic value; however, the aquaculture of Ompok hypophthalmus has been declining.. This study aim to determine the effects of different corn oil enrichment dosages and durations on water fleas and their impact on the growth and survival of Ompok hypophthalmus larvae. This research is conduct on December 1, 2024 -Janua…
Pangasianodon hypophthalmus is a freshwater fish commodity whose market demand continues to increase, so farmers apply intensive cultivation systems. However, if not managed properly, it can reduce water quality, cause stress, and increase the risk of disease, such as Motile Aeromonas Septicemia (MAS). This research was conducted from July 2024 to April 2025 at the Laboratory of Fish Parasites …
The perception of the fishing community about the communication style of the village head on the level of participation of fishermen in village activities at this time for them is not appropriate and cannot provide what they need. The purpose of this study is to analyze the fishermen's perception of the communication style of the village head, the level of fishermen's participation in village a…
Tenggek Prawn is a high value fishery commodity that dominates the catch in the waters of Tanah Merah District. However, increasing fishing activity in recent years has raised concerns about the potential for overfishing. This study aims to analyze the level of fishing effort for tenggek prawn using a bioeconomic approach under three conditions: maximum sustainable yield (MSY), maximum economic…
Kampar Kiri Hilir sub-district is one of the sub-districts in Kampar Regency which has the potential of the freshwater fisheries sub-sector businnes because it is supported by natural resources in the form of the Kampar Kiri River. This study aims to : (1) to calculate the economic value of capture fisheries resources in the Kampar River, Mentulik Village, Kampar Kiri Hilir sub-district, (2) to…
ABSTRACT Empty Palm Fruit Bunch (EFB) is a by-product of the palm oil industry that is abundant in Riau Province. The high cellulose content in EFB has the potential to be developed as a basic material for making activated carbon, which is the type of adsorbent most widely developed for heavy metal adsorption. This study aims to analyze the best carbonization temperature and time on the qu…
ABSTRACT Printing wastewater contains heavy metals such as lead (Pb) and copper (Cu), which are toxic. This study aimed to evaluate the effect of pH and stirring speed on the adsorption efficiency and capacity of Pb and Cu using a composite adsorbent of Spent Bleaching Earth (SBE) and Spent Mushroom Substrate (SMS) with a composition ratio of 25% SBE and 75% SMS. Characterization was conducted…
ABSTRACT Industrial printing wastewater contains heavy metals such as lead (Pb) and copper (Cu), which are toxic and difficult to degrade, thus requiring an effective treatment method. One alternative to reduce heavy metals is the adsorption method using a composite adsorbent made from Spent Mushroom Substrate (SMS) and Spent Bleaching Earth (SBE). This study aims to determine the removal …
ABSTRACT The problem of leaf litter and ketapang twig accumulation at the Faculty of Engineering, University of Riau, has prompted innovative efforts in its management. One approach that can be taken is to apply TOSS (Waste Management Technology at the Source) in managing this waste. This study aims to analyze the physical characteristics of biopellets produced from the TOSS biodrying pro…
ABSTRACT The increase in palm oil production in Indonesia produces abundant solid waste, one of which is empty oil palm bunches (EFB) which has the potential to be used as raw material for activated carbon. This study aims to analyze the best concentration and activation time on the quality of EFB activated carbon, the ability of EFB activated carbon to adsorb Cu²⁺ metal ions, and to an…
ABSTRACT Heavy metals such as Cu and Pb are hazardous pollutants that are toxic, persistent, and capable of accumulating in living organisms. The concentration of heavy metals exceeding the quality standards in wastewater requires further treatment before being discharged into the environment. Adsorption is an effective and economical method for reducing heavy metal content. This study aim…
ABSTRACT Power quality disturbances in the Distribution Network cause losses both from the generation side and from the load side, therefore a mechanism is needed that can anticipate these problems. This research offers a method that is able to overcome these problems. Especially related to disturbances caused by Voltage sag, Voltage swell due to changes in load characteristics in the repeater…
ABSTRACT Modern music has become an essential part of human life as time progresses, serving as entertainment, self-expression, and a tool for learning. The interest in modern music has grown, especially among the younger generation. This can be seen in the numerous concerts held by famous artists in Pekanbaru, as well as the many music-related facilities available. However, facilities to supp…
ABSTRACT Pekanbaru City, the capital of Riau Province, has various major events or events every year, even every few months. This is because Pekanbaru City is experiencing development and growth in the economic, business, and tourism sectors, where demand is increasing for venues for events, businesses, and exhibitions that can accommodate various types of sectors. These events or events are P…
ABSTRACT Silica gel is one of the silica-based materials that has quite extensive uses such as in the pharmaceutical industry, ceramics, paints and special applications in the chemical field. This study aims to synthesize silica gel from Bengkalis Beach sand by varying the concentration of HCl during gel formation. Silica gel is synthesized through several stages starting with the leaching pro…
ABSTRACT Silica gel is one of the silica-based materials that has quite extensive uses such as in the pharmaceutical industry, ceramics, paints and special applications in the chemical field. This study aims to synthesize silica gel from Bengkalis Beach sand by varying the concentration of HCl during gel formation. Silica gel is synthesized through several stages starting with the leaching pro…