This study aims to see the types and content of microplastics in water and marine sediments in the Apar Beach area of Pariaman City. This study was conducted in February-March 2025 in the Apar Beach area of Pariaman City, West Sumatra Province. This study used a survey method and direct sampling to the research location using 3 sampling stations with 3 repetitions within a period of every 1 wee…
Quality feed is one factor affecting the growth and survival of Asian redtail catfish (Hemibagrus nemurus) larvae. Fish oil from pangasius catfish mesenteric fat waste can be commercial feed enrichment material. However, the high-fat content makes fish oil susceptible to oxidation. BHT emerged as an antioxidant added to fish feed to limit pangasius catfish oil autoxidation. This study aimed to …
Ikan bawal air tawar (Colossoma macropomum) merupakan komoditas perikanan air tawar yang bernilai ekonomis tinggi, namun kualitas air dalam budidaya sering menjadi kendala. Pemanfaatan biofilter alami seperti kijing Taiwan (Anodonta woodiana) dalam sistem polikultur diharapkan dapat memperbaiki kualitas air dan meningkatkan performa pertumbuhan ikan. Penelitian ini bertujuan untuk mengevaluasi …
Giant gourami (Osphronemus gouramy) has a high economic value and market demand. However, its seed production is often hampered due to slow growth. Farmers still depend on tubifex as initial feed, but their availability is limited and relatively expensive. Commercial feed fermented using EM4 probiotics is expected to be an alternative to tubifex. This study aims to determine the effect and best…
Walking Catfish (Clarias batrachus) is one type of freshwater fish that has the potential to be developed. Efforts to increase production are through intensive cultivation through increased stocking density. Growth is also influenced by the density of fish stocked, where with a low stocking density, fish growth is relatively faster and vice versa at high stocking densities fish growth is relati…
Pekanbaru, the capital city of Riau Province, has experienced significant growth, accompanied by the expansion of modern retail outlets such as Alfamart and Indomaret. The increasing number of modern retailers reflects a shift in consumer behavior, where people prefer to shop at places that offer convenience, easy access, affordable prices, and a wide variety of products. The consumption patter…
BPS Riau Province has data that is only presented in the form of statistical indikators so that many terms and concepts in statistical indikators are difficult to understand. The purpose of this study is to create a web-based indikator dictionary information sistem to help users search for and understand various statistical indikators quickly and practically. This study uses the waterfall metho…
This research aims to design and develop a web-based bus ticket reservation information system for PT. Fajar Riau Wisata to improve service efficiency and customer convenience in booking tickets. The system was developed using PHP programming language, supported by HTML, CSS, JavaScript technologies, and MySQL as the database. Data collection methods included interviews and direct observations …
Solanaceae is a family of flowering plants consisting of 80 genera and 1700 species. The family is commonly used by the community as cooking ingredients to ornamental plants. Morphological variation in the Solanaceae family is often high, requiring molecular analysis in the form of DNA barcoding. DNA barcoding with four DNA barcodes can provide a better taxonomic picture. This study aims to an…
Beriang plants (Ploiarium alternifolium (Vahl.) Melchior) belong to the Theaceae family, are often found growing in acidic soil and have various biological activities. Plant characterization can use a variety of characters, one of which is phytochemical characteristics. This character is able to provide information about potential compounds contained in a plant. The purpose of this study was to…
Kuantan Singingi Regency (Kuansing) is one of the districts crossed by two major rivers, namely the Batang Kuantan River and the Singingi River with a river flow area of 22,672 km². This study aims to analyze the impact of Unlicensed Gold Mining (PETI) activities on the diversity of macrozoobentos in the Batang Kuantan River, Kuantan Singingi Regency. Two observation stations were selected, ea…
This final project discusses various mixtilinear incircles and excircles related to the symmedian line of an arbitrary triangle. The symmedian is defined as the reflection of the median with respect to the angle bisector of a triangle, resulting in a proportional division of the triangle’s sides. The mixtilinear incircle is internally tangent to the sides of the triangle and the circumcircle,…
Mangifera sumbawaensis is an endemic wild mango from Sumbawa island. Wild mangoes have many biological activities including anticancer agents. In silico can be used to reveal the potency of wild mangoes as anticancer agent. The aim of this study are to (1) identify secondary metabolites from M. sumbawaensis leaves extract based on LC-MS/MS, (2) investigate anticancer activity of M. sumbawaensis…
The Myrtaceae family is one of the most diverse plant families and possesses significant economic value, primarily due to the presence of essential oils in its leaves, twigs, flowers, and fruits. However, overlapping morphological similarities among species within this family make identification based solely on morphological characteristics difficult. This study aims to analyze four DNA barcode…
Ixora javanica (Blume) DC. commonly known as soka, is a popular ornamental plant because of its beautiful flowers. Beyond its aesthetic appeal, this flower is rich in phytochemicals with significant health benefits, including antioxidant, anti-inflammatory, anticancer, and skin-brightening properties, making it a promising natural ingredient for safe applications in health and cosmetics. Howeve…
This final project discusses a development development of the mixtilinear ex- circle in the trisector of a triangle’s angle. A mixtilinear excircle is a circle that is tangent to the extensions of two sides of a triangle and is externally tangent to the circumcircle of the triangle. By constructing the angle trisectors of an arbitrary triangle, many mixtilinear excircles can be formed. The ma…
Corrosion is a process of degradation of metal-based materials that is detrimental to industry, especially in the oil and gas sector, due to the interaction between metals and their environment. In industry, one of the factors causing corrosion is the activity of microorganisms such as sulphate reducing bacteria (SRB) that grow under anaerobic and thermophilic conditions. SRB utilize sulfate io…
This study aims to analyze aquifer zones and groundwater quality in Sialang Sakti Village, Tenayan Raya District, Pekanbaru City, Riau Province, using the Schlumberger configuration geoelectric method and the geochemical method. The geoelectric method is used to identify subsurface resistivity characteristics related to groundwater presence, while the geochemical method is employed to test wate…
Groundwater is a very important natural resource for human life, especially in areas with limited access to surface water. Identification and mapping of aquifer zones are important steps in ensuring the availability of quality and sustainable groundwater. This study aims to analyze the characteristics of aquifer zones in Sialang Sakti Village, Tenayan Raya Subdistrict, using the Wenner configur…
Groundwater serves as a primary resource for the community of Sidomulyo Timur, Marpoyan Damai District, Pekanbaru City, primarily for household and industrial needs. Increased domestic and industrial activities in this area have the potential to cause groundwater contamination through waste infiltration. This study aims to analyze the level of groundwater contamination by combining the Wenner C…