This research aims to determine the density and quality of water in peat swamp waters and determine the proximate levels in the aquatic plant U. gibba in Peat Swamp Waters, Bukit Batu District, Bengkalis Regency, Riau Province. This research was carried out in January - February 2024, located in peat swamp waters, Bukit Batu District, Bengkali Regency. This research uses a survey method, by cal…
The toxic activities of aquatic plants and oil palm plantations around Daek Lake will provide input in the form of organic and inorganic materials to the waters so that it will increase nutrients which will affect trophic state of water. Measurement of trophic state can be done using 3 approaches, namely physics, chemistry and biology. Trophic State Index (TSI) uses these three approaches in d…
Pengambang River is one of the rivers that crosses Pekanbaru City, with a length of 9.2 km which empties into the Siak River. The Pengambang River is the water source for Kayangan Lake. The current condition of the Pengambang River is thought to have experienced a decline in water quality due to various human activities in its watershed. This research aims to determine the quality status of the…
Thynnichtys thynnoides is a type of fish commonly inhabits the Teluk Banderas Lake, an oxbow lake of the Kampar River. The population of that fish, however, is decreasing, while its biological aspects information is rare. To understand the reproductive biology of that fish, a study was conducted from June-August 2023. Samplings were conducted 6 times, once/ 2 weeks. The fish was captured using …
Cherax quadricarinatus inhabits the Katoman River and Ali Lake that have different types of ecosystems, as the water in the river is running while that of the lake is static. The water condition may affects the behavior as well as body shape of the lobster. A study aims to compare the morphology of C. quadricarinatus both locations was conducted in July-August 2023. Lobster samplings were carri…
Kwetiau is a type of white noodle and is quite popular among Chinese descendants made from rice and mixed with tapioca flour with a steamed cooking process. The purpose of this study was to determine the quality of the addition of ikan biang flour to kwetiau and determine the best amount of ikan biang flour for addition to the kwetiau formulation. This study used a non-factorial complete random…
The coast of Rumbai Artificial Lake is one of the lakes in Pekanbaru. Various activities in and around the lake will certainly cause pollutants to enter the lake. The aim of this research is to determine the existing condition of water quality and to see the quality status of water quality using the Pollution Index (IP) method. This research was carried out from July to August 2023 at the coast…
Siak River, Sail River, and Segati River are some of the major rivers in Riau Province that have high potential aquatic resources and also have different river characteristics. Thequality of river water is relatively low in terms of pH, TDS, color, turbidity and organic substances so that the results of purified water will be physically, chemically, suitable for microalgae Chlorella sp. This st…
Microalgae type Chlorella sp. is one of the green algae that has good bioremediation because it can live in polluted water conditions. Chlorella sp. plays an important role in making green water and at the same time as a balance system for fish and shrimp hatchery media. This study aims to determine the effect of Thiamine on the density and biomass of Chlorella sp. The method to be used in this…
The Katoman River is a shallow river with a sandy and gravelly bottom, and slow-flowing water that supports the life of decapods. This research aims to identify the types of decapods living in the that river, as there is currently no information available on the decapod species found in the river. Samplings were conducted once a week for a month from July to August 2023, using crab traps. Based…
The mangrove forest in Buruk Bakul Village has experienced damage as a result of community activies such as land clearing, shrimp pond cultivation, consumption fish cultivation and settlements. The damage to the mangrove ecosystem will have a negative impact on aquatic biota, including the gastropods that inhabit the area. To determine the structure of the gastropod community in the mangrove ec…
Liquid smoke is the result of distillation or condensation of direct combustion steam containing lignin, cellulose, hemicellulose and other carbon compounds. Liquid smoke made from coconut shells is usually used to increase the growth of plant cells including microalgae, one of which is Chlorella sp. This research used an experimental method with a Complete Random Design system and was analyzed…
The carrying capacity of waters can be interpreted as the ability of waters to support the life of the biota contained or living in them. Determining the carrying capacity of Daek Lake's natural fisheries is more appropriate using the chlorophyll-a approach, because the carrying capacity of natural fisheries is almost entirely dependent on natural feed (phytoplankton). This research aims to det…
The Diatas Lake is a shallow tectonic lake. In that lake, there were floating net cage aquaculture activities that produce organic pollutant and affect the water quality in general. Changing in water quality will affects the types and abundance of phytoplankton as well as the fertility of the lake. To understand the type, abundance of phytoplankton and the fertility status of the lake, a s…
Abstract Bivalve community structure is closely related to seagrass ecosystem as well as environmental condition. Any changing in environmental condition may affects the bivalve community in general. To understand the community structure of bivalve community in the Teluk Bakau Village, a research was carried out in January-February 2023. Bivalve and seagrass samplings were conducted in 3 s…
Abstract The bay waters serve as a crucial habitat for various marine species, including macrozoobenthos. Macrozoobenthos are aquatic organisms with relatively slow movements, residing on the seabed, and are highly influenced by the substrate and water quality. The objective of this research is to examine the relationship between sediment fractions and organic materials concerning macrozoobent…
Abstract Sea turtles are one of the marine life whose existence is endangered so it requires protection or conservation measures. The purpose of this study is to determine how effective turtle conservation management is carried out at UPTD KPSDKP through survey methods. The research has been carried out in May – June 2023 located in Apar Village, Pariaman City. The results showed that cons…
Abstract The purpose of this study was to determine the type and abudance of microplastics in the water and sediment of the Siak Watershed. this study was conducted from March to May 2023. Sampling was done once a month for three months. There were 4 research stations, namely Air Hitam River, Sago River, Umban Sari River and Pengambang River. Surface water samples were taken as much as 10 lit…
Abstract Microplastics are currently a new source of pollutants and are considered the latest research in fresh waters compared to marine waters which have been studied for a long time. This study aims to determine the type and abundance of microplastics using bongo nets in the waters of the Koto Panjang reservoir. The research was conducted from April to June 2022 using a purposive sampling m…