Vitamin C is a nutrient that is soluble in water and is essential for life as well as for maintaining health, enhancing immunity of fish and as an antioxidant. The study aims to obtain the best dose of vitamin C on total leukocytes, leukocyte differentiation, and phagocytosis activity to increase the immunity of nile tilapia. The method used is the experimental method by using the full random d…
This research was conducted on July until Agustus, 2019 at the Laboratory of Environmental Quality of Culture, Faculty of Fisheries and Marine, University of Riau. Objective of this study to determine the effect of laundry liquid waste on the acute toxicity test and sub lethal of Oreochromis niloticus and safe doses for the growth of O. niloticus. Nile tilapia used in size 5-7 cm. Determination…
Vitamin C plays important role in maintaining the body's physiological processes, preserving enzymatic activity in collagen biosynthesis, and also plays a role in wound healing. The study was conducted from May to August 2019 in the Laboratory of Parasitic and Fish Disease, Fisheries and Marine Faculty, Riau University. This study aimed to obtain the best dose of vitamin C enriched pellets on r…
Laundry detergent waste produce toxicity dangerous for survival rate of the fish and water quality. Laundry detergent waste toxicity tests need to be done research on test animals Patin (P. hypophthalmus) to determine the effect of surfactant materials on water quality and fish mortality rate Patin. This study aims to get the effect of acute and sub-chronic toxicity of waste and get the laundry…
The research was conducted in Juli 2019 – Agustus 2019 at BBPBAP Jepara, the aim to determine the effect and get the best dose of recombinant growth hormone grouper fish (rElGH) for growth and survival of white shrimp (Penaeus merguiensis). This research was conducted using experimental methods with completely randomized design (CRD) with one factor, five levels of treatment and three replica…
The carrying capacity is defined as the ability of aquatic environment to support the life of organisms in that area. A study aimed to assess the aquatic carrying capacity for extensive fishing in the Putus Lake, Pangkalan Baru Village, Kampar District, Riau. The carrying capacity was determined based on primary productivity using chlorophyll-a concentration, which is indicating the existence o…
There were many activites around in kolong of tin post mining in Baran Timur Village Meral District Karimun Regency Kepulauan Riau Province, contributed orgnic and inorganic materials that influenced concentration of nutrient (N and P) in the water. This research aims to know the trophic state in kolong of tin post mining in Baran Timur Village Meral District Karimun Regency Kepulauan Riau Prov…
Channa lucius is a type of freshwater fish that commonly inhabit the Kampar Lama Oxbow Lake. This study aims to understand the reproductive biology of C. lucius. The fish was sampled 4 times, twice/month, from June-July 2019. Parameters measured were sexsual characteristics, sex ratio, gonad maturity level, gonad somatic indeks (GSI), fecundity and egg diameter. Results shown that there were 36…
Carrying capacity is defined as the ability of aquatic environment to support the life of organism in that area. A study aimed to assess the aquatic carrying capacity for extensive fishing in the Betung lake, Betung Village, Pangkalan Kuras Sub-district Pelalawan District, Riau Province. The carrying capacity was determined based on primary productivity using chlorophyll-a concentration. This r…
Channa lucius or snakehead fish inhabit the Kampar Lama Oxbow Lake. This research aims to understand the pattern of otolith growth rings of that fish and it was conducted in July to August 2019. The fish were caught using fish trap, once/week. There were 58 fishes (38 male fishes and 20 female fishes). The otolith (sagita) were removed and manually shaved. Growth ring pattern was studied using …
Female employees movement in PT. Caltex Pacific Indonesia (CPI) in late 90’s successfully materialized their goals to get equal benefits for their family as already enjoyed by their male counterparts. Meanwhile there were scarce researches on the communication aspects of women movement in Indonesia. This research aims to reveal 4 aspects of the movement: the meaning of inequality for the fema…
Channa lucius is one of freshwater fishes that inhabit the Kampar Lama Oxbow Lake. This research aims to determine the type of food present in the fish’s stomach. To understand the type of food consumed by C. lucius, a research has been conducted at July to August 2019. There were 107 fishes captured, but only 38 fish have full stomach. The analysis was conducted using a gravimetric method. S…
Betok fish is one type of species that is influenced by the season and lives in the Lubuk Siam Lake. A research aimed to understand the standing Stock of Anabas testudineus in size distribution of fish caught in Lubuk Siam Lake. Fish was sampled in 3 sampling points using nets and traps. The research was conducted in April-May 2019. The Standing Stock was analyzed based on Leslie method. The r…
This research is motivated by the low employee performance. This is thought to be caused by not yet optimally running the Management Information System at the Riau University Library. The purpose of this study was to analyze the effect of library management information systems, namely SLIMS (Senayan Library Information Management System) on the performance of Riau University Library employees. …
Effective and efficient communication management in an organization will determine the level of success of the organization in achieving its goals and objectives. Community development is a special department of PT. RAPP to implement community empowerment programs. The purpose of this study was to explain and analyze process of communication planning, organizing communications, communication i…
Wisata Alam Pertamina Lirik is the center of Pertamina’s community empowerment. It is a program of CSR (Corporate Social Responsibility) Pertamina EP Lirik. Wisata Alam Lirik is a form of caring from PT. Pertamina Asset 1 Lirik Field toward local community and environment. The purpose of this study was to explain and analyze the process of communication planning, implementation and evaluation…
The unlicensed gold mining activity (PETI) in Marsawa village, Sentajo Raya District, Kuantan Singingi Regency has caused environmental damage in Bendung Irigasi Batang Teso. Inflicting public unrest, to the rise of community movements pioneered by Karang Taruna Tunas Karya which is then called environmental movement of Bendung Irigasi Batang Teso, to restore function and develop existing poten…
For striptease actors, their profession is seen as an expression of art in the entertainment world they are engaged in. There are a freedom of expressions, freedom to explore themselves-potential without binding rules in work and also the professionalism of work they enjoy which is making them undergo the profession happily even though they often feel bored with the consequences they receive bu…
The implementation of an self service and SMS-based message machine is an innovation in the University of Riau library services. Some previous studies have partially proven that innovation influences service quality and / or user satisfaction. This study aims to examine the effect of the implementation of a library self-service machine (the concept of Human Computer Interaction) and the impleme…
Many activities in the Tanjung Balam Lake contribute the input of organic and anorganic matter that affects the nutrient concentration and increasing the growth of phytoplankton. A research about Trophic State of Tanjung Balam Lake by phytoplankton in Buluh Cina Village Kampar District Riau Province has been conducted in June-July 2019. The location of the water samples to measure water quality…