This study assesses the pollution load capacity of the Tapung Kiri River, Kampar Regency, Riau Province, Indonesia, using the QUAL2Kw model to evaluate its ability to assimilate organic and inorganic pollutants under anthropogenic pressures. The study was conducted along a 29 km river stretch from Petapahan village (upstream) to Bencah Kelubi (downstream). Field data collected from three sampli…
Lemna perpusilla is an aquatic plant with important ecological functions, particularly as anatural feed sourcedueto its high protein content. This studyaimed to determine the optimal concentration of palm oil mill effluent (POME) as a growth medium for Lemna perpusilla. The research was conducted from October to November 2023 at the Algae Production House 3, Sei Galuh Palm Oil Mill, Kampar. A C…
Liquid waste from palm oil mills has a fairly high nutrient content and can be used as organic fertilizer for the growth of Lemna perpusilla. Lemna perpusilla known as aquatic weed with its proximate content can be considered as bioethanol. To determine the effect of utilizing palm oil mill liquid waste on the proximate and bioethanol content of Lemna perpusilla, a study was conducted from Febr…
Lubuk Larangan is a local wisdom that serves as an effort to conserve fish resources and aquatic ecosystems. Management of natural resources and the environment based on local wisdom such as Lubuk Larangan Padang Sawah Village. This research aims to determine the existing conditions and the condition of the Subayang River in Padang Sawah Village. This research was conducted in May-June 2024 in …
Phytohormone 6-Benzyl Amino Purine (BAP) is a plant hormone that can support, inhibit, and alter the physiological processes of plants including microalgae. 6-Benzyl Amino Purine (BAP) has a high nitrogen content so that it can increase cell division in microalgae. The purpose of this study was to determine the effect of phytohormone 6-Benzyl Amino Purine (BAP) on the density and biomass of Chl…
Liquid waste from oil palm mills has a high nutrient content and can be used for plant growth, one of which is the Wolffia sp. The purpose of this study is to determine the best concentration of oil palm liquid waste as a medium for the growth of Wolffia sp. The research was conducted from February-March 2024 which islocated atthealgaeproduction house3 PKSSeiGaluh Kampar. Thedesign carried out …
Microplastics are small plastic measuring in size (< 5mm) that generally originate from the degradation of larger plastics.This research aims to identify the types and abundance of microplastics in the water of the Mandau River, Sungai Mandau District. The research was conducted from December 2024 to January 2025. Sampling was carried out once every 2 weeks as many of 3 repetitions. Researchsta…
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…
Channa lucius or known as bujuk fish inhabits slow-flowing swamp that is inundated during the rainy season. Bujuk fish is categorized as a carnivore based on its food habits, as it predominantly consumes fish and shrimp. This study aimed to examine the food habits of C. lucius, focusing on food types, the percentage composition of each food item, and the dominant dietary components consumed by…
Seagrass beds are one of the ecosystems that have many functions, especially for marine biota such as bivalves. The high exploitation of bivalves and the degradation of seagrass beds which are bivalve habitats can affect the composition and density of bivalve species associated with seagrass beds. This study aims to determine the type and density of seagrasses, the type and density of bivalves,…
This research aims to determine the types of fish caught in Lake Sepunjung and in the Artificial Habitat equipment at Lake Sepunjung, Rantau Baru Village, Pangkalan Kerinci District, Pelalawan Regency, Riau Province. This research was conducted in January-March 2024 in Lake Sepunjung, Rantau Baru Village, Pangkalan Kerinci District, Pelalawan Regency, Riau Province. This research was carried ou…
Carp reared in salinity media experience changes in the osmoregulatory system that can have an impact on organ performance, especially the intestines and kidneys. One of the efforts to increase the immune system of fish is by giving natural immunostimulants such as guava leaf flour. This research was conducted in August-October 2024 at the Biotechnology Laboratory, Faculty of Fisheries and Mari…
Raising striped catfish (Pangasianodon hypophthalmus) in dark conditions with low salinity (5 ppt) can support growth but may also cause stress and affect blood health. Adding Cosmos caudatus leaves, which contain natural bioactive compounds, in fish feed could offer a natural way to help boost the immune system. This study aimed to understand the hematological response of fish toward the C.cau…
Kampar Kanan river is the habitat of gadih fish. This fish is a native fish in highland waters whose numbers and presence are decreasing in nature. This is caused by changes in environmental conditions in their natural habitat and overfishing. Food is an important factor for fish life because it can help determine the area where fish are distributed and also can be used to monitor the number of…
The Faculty of Fisheries and Marine Sciences, University of Riau reservoir gets water from the butterfly bridge and small ditches. However, in the area around the butterflybridge, manyhumanactivitiesprovide nutrientsto thewaterand asaresult affect the trophic status. To determine the trophic status based on the Trophic Index (TRIX), the study was conducted in February-March 2025. There were 3 s…
Marine debris is non-natural solid material that is left or discarded in the sea by humans, either intentionally or unintentionally, as well as objects that flow into the sea through rivers and household and industrial waste disposal channels. In the Rupat Utara District coastal area, several factors contribute to the marine debris problem, namely marine debris originating from the Malacca Stra…
Rivers are a form of aquatic ecosystem that plays an important role in the hydrological cycle and functions as a water catchment area for the surrounding area, so that the condition of a river can be influenced by the characteristics of the surrounding environment. This study aims to determine the Diversity of Species and Abundance of Economically Important Fish in the Nilo River, Betung Villag…
The status of fish utilization that is carried out in excess can threaten its sustainability because it threatens the ability to recover fish resources towards extinction. One of the potentials in the fisheries sector is the potential of fisheries in inland waters such as Oxbow Lake. Danau Panjang Hulu and Danau Panjang Hilir are oxbow lakes of the Kampar River that receive fish, including Cypr…
The Sago River is a tributary of the Siak River located in the center of Pekanbaru City. The condition of the river is heavily influenced by urban activities, including various waste disposal practices, both liquid and solid, which contribute to water pollution. The aim of this study is to assess the water quality status of the Sago River and to calculate the pollutant load contributing to the …
Lelan fish is one of the native species of the Kampar River, playing an important role in maintaining the balance of the aquatic ecosystem in the Kampar River, Riau, Indonesia. This study focuses on the biological aspects and ecological conditions of the lelan fish in the lower reaches of the Kampar River, particularly in relation to environmental changes influenced by the presence of the Koto …