The purpose of this study was to determine the type and abundance of microplastics found in the stomach of lelan fish in the Kampar River. This research was conducted in December 2023 - January 2024 at 3 stations, namely: Station 1 (upstream - Merangin Village), Station 2 (middle - Langgini Village) and Station 3 (downstream - Sungai Tonang Village) twice with a span of 1 month. Captured fish s…
Rasbora caudimaculata or known as “pantau“ fish is a freshwater fish that is often found in Tuok Tonga Lake. The purpose of this study was to determine the environmental characteristics of the lake that support the life of fish as well as to determine the biological characteristics of the fish. This study was conducted in June-July 2024. Sampling was carried out 3 times / 2 weeks. Parameter…
Snakehead fish (Channa striata bloch, 1793) is a type of fish that lives in Lake Lubuk Siam and has high economic value. The research, which aims to understand the reproductive biology and nutritional content of snakehead fish eggs, was carried out in December 2023 – January 2024. Fish sampling 2-3 times for 2 months was carried out with the help of fishermen using bubu fishing gear and …
Luciocephalus pulcher inhabits the Sibam River, Pekanbaru. The fish was available when there were many vegetations present in the bank of the river, but it was rare when there was no vegetation. The purpose of this study was to determine the relationship between the presence of vegetation on the riverbank and the presence of the fish and also to determine the type of food eaten by the fish, a s…
Periodic assessment of river water quality is important because rivers are one of the water sources that are widely used by humans to meet their needs. Human activities in the watershed encourage a decrease in river water quality starting from household activities, plantations, and so on can produce waste that can adversely affect and pollute the river. National Sanitation Foundation-Water Qual…
Desmopuntius gemellus (Cyprinidae) is a native species of Southeast Asian fish and inhabit peat swamp water as well as oxbow lakes that has dark water characteristic. This study aims to find out the biological and ecological factors that affects the presence of that. This research was conducted from June to July 2024. The fish were captured using net fishing gear ( 0.5 cm mesh size). Total numb…
PLTA Koto Panjang Reservoir is one of the reservoirs in Riau Province which has a primary function as a Hydropower source and also used for fisheries and tourism activities. Increasing fish farming activities produce residual feed and metabolism which will increase the content of coliform bacteria in the water. This study aims to determine the content of coliform bacteria in PLTA Koto Panja…
Tor tambroides (Cyprinidae) or gadih fish was an native fish that inhabit the upstream of the Kampar Kanan River. The population as well as the habitat of this fish were reduced. As the life quality of the fish was reflected in the growth pattern in the otolith, the cause of decrement of this fish may be investigated through its growth ring pattern in the otolith. A study aims understand th…
Tapung Kiri River is one of the rivers located in Kampar and Rokan Hulu Regencies, part of the Siak River upstream. There are settlements, sand mining activities, and oil palm plantations in the riverbank area, which can cause river water pollution. This study aims to determine the existing condition of Tapung Kiri River water quality, identify pollution loads, and determine the quality status …
This research was conducted in March-April 2024 in Rantau Larangan, Desa Sibiruang, Koto Kampar Hulu District, Kampar Regency, Riau. The aim is to assess the management of Rantau Larangan and to understand water quality through the measurement of physicochemical parameters based on quality standards. The method used in this research is a survey method, namely making direct observations at the r…
This research was conducted from September to November 2023, using a survey method. The collected data was analysed descriptively. Primary data collection was carried out by field observation and laboratory analysis. Meanwhile, secondary data was obtained from sources such as books, journals, and the internet. The research results found that there were 21 species of microalgae from 4 classes. T…
Marine waste is persistent solid material, which is discarded and left in the marine environment or also comes from waste originating from residential activities in coastal areas which are carried by floods flowing to coastal areas and the sea, but in the end the waste will be exposed to coastal areas carried by Mangrove forests have benefits and an important role in maintaining coastal eco…
The Koto Panjang hydropower reservoir is used for various functions (multipurpose reservoirs), one of which is the cultivation of floating net cages (KJA). This cultivation activity has an impact in the form of increased organic matter at the bottom of the waters due to excess feeding, as a result of which the concentration of ammonia is relatively high at the bottom, where ammonia is toxic. If…
This study aims to determine the pollution load and water quality status using the pollution index in the Umban Sari River. The study was conducted from January to March 2024 in the Umban Sari River. It was carried out using a field survey method to collect water quality data. Water samples were taken using grab sampling, with samples collected 3 times over a 3-month period at 3 research statio…
The TRIX index is an approach that can be used to determine the fertility status of a water body. This TRIX index uses the main and supporting approaches. The purpose of this study was to determine the fertility status of Lake Daek using the TRIX trophic index, where this research was conducted in July-September 2023 at Lake Daek. There are 3 stations in this study, namely station 1 is the inle…
Lake Daek is one of the oxbow lakes located in Teluk Kenidai Village, Tambang District, Kampar Regency, Riau Province. This lake has great potential in the fisheries sector, so it needs to be protected and preserved for the future. A research aimed to know the primary productivity based on oxygen method and was carried out in August - September 2023. Sampling and measuring water quality in Lake…
The purpose of this study was to determine the types and abundance of microplastics in Tubifex sp., water, and sediment of Sail River. This research was conducted from Januari to March 2024. Sampling was carried out once a month for thee months at 3 stations. Surface water samples of 100 liters were collected and filtered using plankton net No. 25, while sediment and Tubifex sp. samples were ta…
The Kampar Kiri Hulu River has various types of biota that live in it, one of which is the stingfish. The presence of Sengarat fish in nature, especially in these rivers, continues to decline due to excessive fishing and using fishing gear that is not environmentally friendly. Apart from that, activities around the river become polluted and cause the availability of natural food in the wate…
This research aims to determine the relationship between length-weight and condition factors of Gulamah Fish (Johnius trachycephalus) in estuarine waters of Dumai City. This research was conducted in May - July 2023, located in the estuary of Dumai River and Masjid River, Dumai City, Riau Province. This study used survey method, fish samples were caught by fishermen with fish sampling following…
Kelombok Village, Lingga Regency is an island with a large water area (99% of the water area) and has a high wealth of biological resources, especially algae or seaweed. This research was conducted in the coastal waters of Kelombok Village with three stations (stations 1, 2, and 3), and two zones (tide zone and low tide zone). The research was carried out for one month, namely in January 2024. …