Koto Panjang Reservoir Research Articles

Optimizing Koto Panjang Reservoir Utility for Regional Sustainable Tourism Development in Kampar Regency, Riau Province

This study aims to determine the effect of the development of the Koto Panjang reservoir as a tourist destination on the development of the Kampar Regency area through optimization of the use of the reservoir. The data collection method used is conducting structured interviews and distributing questionnaires. The validity and reliability of the questionnaire was applied before data collection was carried out. Analysis of the data used in this study uses Structural Equation Modeling (SEM) with the SmartPLS 3.0 tool. The results of the study show that in the existing conditions the development of Koto Panjang reservoir as a tourist destination is more attractive to visitors in terms of beautiful scenery than other elements of sustainable tourism. However, visitors see various potentials for increasing the tourism sector, especially in terms of culinary and resting. Visitors are also interested in selfie tours and water tours offered by the reservoir. . KEYWORDS :Tourism destinations, Optimization of reservoir utilization, Regional development, Koto Panjang reservoir, Reservoir tourism.

Observations of fish species diversity in floating artificial habitats in Koto Panjang reservoirs, Indonesia

Monitoring the diversity of fish species in artificial floating habitats that are continuously tested in the waters of the Koto Panjang Reservoir is important to assess the current availability of fish species resources. This study aims to evaluate the increase in fish species in the different artificial floating habitat structures that were tested. This study was conducted from November 2023 to June 2024 in the Koto Panjang Reservoir on 9 existing floating habitat structures. Each structure has 8 attractors with media (raffia rope, plastic rope, packaging bottles) hung at a depth of 2 m. Each structure is equipped with 4 traps to catch fish every month, then counted and identified according to applicable procedures. The catch in all artificial habitats was 189 fish with a total of 21 species from the previous 16 species. The largest number of fish remained in the raffia rope media at 100% and the lowest in the strapping band at 76,2%. Meanwhile, the types of fish found in the reservoir waters were 32 species from the 44 species that had been recorded from previous research. It was concluded that raffia rope media is a media preferred by fish in artificial floating habitats.

Length and Weight Relationship, Condition Factor, and Morphometric Characteristics of Eleven Freshwater Fish Species in Koto Panjang Reservoir, Indonesia

This study analyzes the species composition, length–weight relationship (LWR), condition factor, and morphometric and meristic characteristics of eleven freshwater fish species in Kota Panjang Reservoir, Indonesia. Fresh specimens were collected from September 2023 to February 2024. Results show that among the sampled species, two belong to Order Anabantiformes, three to Order Siluriformes, and six to Order Cypriniformes. The Order Siluriformes has the lowest species composition, with Hemibagrus wyckii at 3.09%, while the Order Cypriniformes has the highest, with Barbonymus schwanefeldii at 15.25%. The LWR coefficient b ranges from 1.693 to 3.151. Of the species studied, only Hemisilurus heterorhynchus (b = 2.174), Clarias teijsmanni (b = 2.046), Anabas testudineus (b = 2.375), Labiobarbus festivus (b = 2.305), and Rasbora argyrotaenia (b = 1.693) fall outside the expected range of 2.5 < b less than < 3.5. One species exhibits a positive allometric growth (+), seven show a negative allometric growth (−), and three display an isometric growth (I). Fulton’s condition factor (Kc) averages between 0.73 ± 0.15 and 4.96 ± 0.63, indicating morphological variation. The allometric condition factor (Ka) ranges from 0.87 ± 0.18 to 26.25 ± 4.05, reflecting differences in resource availability and competition. Relative condition factor (Kn) values range from 1.00 ± 0.09 to 2.51 ± 0.55, indicating good growth. Morphometric analysis shows that Rasbora argyrotaenia has the smallest average total length, head length, and body depth, while Hemibagrus wyckii has the largest. The results provide new data on the LWR, condition factor, and morphometric characteristics of eleven selected freshwater fish species in Kota Panjang Reservoir, Indonesia, and offer up‐to‐date information on the remaining species in the study area. These findings could have a significant impact on species stock assessments and help identify priority species for domestication.

First report of artificial floating habitat to increase the fish population in Koto Panjang reservoir, Indonesia

The artificial habitat being tested in the Koto Panjang Reservoir is a step to anticipate the emergence of symptoms of a decline in fisheries resources at this time. This study aims to examine the types of artificial media in the artificial habitat structure favored by fish. This research was carried out from June 2022 to August 2023 in the Koto Panjang Reservoir. Artificial habitat is created as many as 10 structures. Each structure has 8 attractors with different media (raffia rope, plastic bonded rope, palm fiber, packing bottles, and coconut leaves, which are suspended at a depth of 2-8 meters. Four units of fish traps are placed on each structure for monthly fish collection, then counted and identified according to applicable procedures. The result shown that were 232 fish caught in all artificial habitats consisting of 16 species, excluding 1 type of freshwater shrimp. On raffia cord media, more types of fish were caught, reaching 56% compared to 12% on packaging plastic bottle media. It was concluded that this artificial floating habitat with different media could be a gathering and foraging place represented by 16 fish species from the 44 fish species recorded in this reservoir.

Monitoring the Ecotoxicology of the Koto Panjang Reservoir by Determining the Levels of Heavy Metals

Water quality monitoring activities are important to be carried out regularly. This activity is intended as an effort to create sustainable cultivation activities. The Koto Panjang Reservoir is one of the reservoirs used for aquaculture activities, so monitoring activities at this location are important things to do. This activity was carried out using a survey method at two observation locations. Location 1 is the floating net caged area, and Location 2 is the upstream or non-floating net cages area. Direct water quality measurements were carried out in both locations: temperature, pH, and DO. In addition, water samples were taken to see the content of heavy metals, namely Cd and Pb. Water samples were carried out to see the heavy metal content at the Basic Chemistry Laboratory, Faculty of Engineering, Riau University. The results showed that overall, the physicochemical quality of water at the Koto Panjang Reservoir, both Locations 1 and 2, namely temperature, dissolved oxygen, and pH, still met the requirements for fish farming. While the value of Cd in all observation locations at the Koto Panjang Reservoir exceeds the quality standard, it can be said to be polluted. Unlike Cd, there is a difference in the value of Pb at Location I and II, namely Pb at Location I; the Pb value is outside the quality standard threshold or is said to be polluted, while Location II still has not exceeded the quality standard. The high Pb value at Location I was due to many fishing boat activities with engines.

First Report of Argulus Ectoparasite from Koto Panjang Reservoir, Indonesia

Carp cultivation has been going on for a long time in the Koto Panjang Reservoir and the type of Argulus ectoparasite in this fish culture has not been reported. This initial research study aims to identify the morphology and characterize the DNA of the Argulus species in this reservoir. This research can be used as initial information material for the management of aquaculture fish health and early warning against water quality degradation. Argulus surveys were carried out on carp parent cages with coordinate positions 0°16′46.7” North and 100°51”26.2” East. Argulus specimens were collected from live and dead carp bodies (body surface, gills, operculum, caudal fin, pectoral fin, anal fin, pelvic fin, base of tail, and abdomen) using a spatula and stored in 96% ethanol for identification using standard literature and DNA barcoding techniques. The research results obtained 115 specimens of the genus Argulus from 49 live goldfish (2800-4900 mm and 200-1800 g) and 3 goldfish that died ± 3-4 days which were characterized by white gills and white mucus lumps between the scales. DNA characterization revealed that the name of this fish lice species (Argulus) could not be determined and had a close relationship with Argulus japonicus Shizuoka-2019 with an identity value of 79.22%.

Freshwater Fish and Fishery Activities in Koto Panjang Reservoir, Riau

Koto Panjang Reservoir is an artificial lake that, besides being utilized for electricity power or irrigation, is also utilized by the fishery sector. This paper describes the fish diversity, fishery activities, and potential yield of Koto Panjang Reservoir in Riau Province. Eight enumerators collected the primary data to record the total weight (kg) of catches and the number of fishing gear (unit) usage. The secondary data was obtained by literature search and relevant study results from related agencies. The potential fish yield of the reservoir was estimated by using the Morpho-Edaphic Index (MEI) model. The results showed that 29 species inhabited in Koto Panjang Reservoir with the potential fish production of about 222.32 kg/ha/year. Policy implementation can be implemented by restricting fisher and fishing gears numbers.

Identification of Microplastics in Common Carp (Cyprinus carpio) at Koto Panjang Reservoir Kampar Regency Riau Province

In the Koto Panjang Reservoir the microplastic may originated from the degraded plastic waste as well as degraded plastic net from the fish culturing cages. The microplastic may be accidentally ingulfed as fish swallowing their food. To understand the present of microplastic present in the stomach of wild common carps living around the fish net cage, a study was conducted on in December 2020- February 2021. The fish were captured using fish net (3-5 inc mesh size), 3 times, once/ 2 weeks. The fish stomach was removed and the presence of the microplastic was identified. The stomach content of the fish was mixed with 10% KOH (minimum 3 x of stomach content volume) and was incubated for2 weeks to dilute the organic materials. Then the presence of microplastic was observed using a binocular microscope. Types and abundance of the microplastic was noted. Results shown that the types of microplastic present were films, fibers and fragments. The highest type of microplastic found in the stomach of the fish was films (2.3 particles/ fish), followed by fibers (0.6 particles/fish) and fragments (1.1 particles/ fish).

The Evaluation of Fish Growth Parameters and Exploitation of Hemibagrus nemurus In The Kotopanjang Reservoir, and The Sembakung River, Indonesia

Hemibagrus nemurus or Baung is catfish grouped with pangasidae that has become a high economic value in Indonesia. The Kotopanjang Reservoir and the Sembakung River have the potential fishing ground of Hemibagrus nemurus in Riau Province and North Kalimantan respectively. This paper aims to evaluate the situation of the utilization of Hemibagrus nemurus based on growth parameters between two populations in the Kotopanjang Reservoir and the Sembakung River. The sample was collected from February to November 2017 in Kotopanjang, and February to September 2019 in the Sembakung. The conclusion has been produced by the length frequency analysis on both locations. The growth parameters have been analyzed by R software “TropFishR” and “fishmethods” packages. The result of ELEVAN analysis draws the same growth factor was 0.2 for the Kotopanjang and the Sembakung River. The length infinitive in the Sembakung River is 90 cm and the Kotopanjang 46.5 cm. The other result shows the exploitation level was higher recorded in the Kotopanjang Reservoir compare to the Sembakung with 0.514 and 0.277 respectively. It proved the exploitation rate in Kotopanjang was higher than the size caught in the Sembakung River. The recruitment pattern in both locations showed recruit pattern for the new stock was two times a year.

Water Quality and Trophic Status of Koto Panjang Reservoir, Indonesia

Koto Panjang Reservoir is one of the hydroelectric power plants in Indonesia, located in Kampar Regency, Riau Province. This paper aims to determine the water quality and tropic status of the Koto Panjang Reservoir. The research was carried out along the Koto Panjang Reservoir, covering the floating net cages area, inlet, outlet, and the center of the reservoir. Water samples were collected twice a year, February and September 2017. The results showed that the water quality of Koto Panjang reservoir is still within the tolerance range for the aquatic organisms' life, including fish. Based on the TSI analysis, the Koto Panjang Reservoir throphic status was categorized as eutrophic to heavy eutrophic. This study recommends that relocating floating net cages is necessary so that the nutrient load will not only be concentrated in one location. The efficiency of using the feed for floating net cages could minimize the waste.

Dynamics Water Quality in Koto Panjang Reservoir, Indonesia

Riau Province has the Koto Panjang reservoir which is generated from the damming of the Kampar River flow for hydroelectric power generation and other utilization activities. The increase in community activities in reservoir waters and on land causes water quality dynamics that can affect fish farming activities. The purpose of this study was to determine the dynamics of reservoir water quality. The survey was conducted in March – August 2021 at seven sampling points, where water samples at each sampling point were taken at a depth of 1 m as much as 1 liter using a van dorn water sampler and preserved and analyzed according to standard methods. Data from measurement and analysis were tabulated and analyzed descriptively including temperature, pH, turbidity, TSS, TDS, DO, nitrate, ammonia, total nitrogen, BOD5, COD, and total phosphate. The results obtained indicate that the values of temperature, turbidity, TDS, TSS, pH, DO, ammonia, nitrate, and phosphate are still below the quality standard, except in the range of BOD values of 4.30 – 5.75 mg/L and COD of 17.90. – 23.73 mg/L is an indication of organic matter originating from other activities on the reservoir land, such as plantations, agriculture, settlements, tourism, apart from floating net cage cultivation activities.

Potensi dan keragaman hayati cagar alam Bukit Bungkuk

The area of Bukit Bungkuk wildlife sanctuary is on Kampar regency in Riau Province. Based on the decree of Minister of Forestry at 3917/Menhut-VII/KUH/2014 which were areas 12.828,88 Ha. The existence of Bukit Bungkuk wildlife sanctuary is a habitat for the endangered and the protected flora and fauna. Monitoring of the existence these areas was carried out in a rapid survey and interview with village officials and local communities. These activities to obtain the existence and the potential of carrying capacity of Bukit Bungkuk wildlife sanctuary. This area is a home to 32 species of wildlife found directly or indirectly. Furthermore, there are 2 potentials environmental services in this area that can be developed on empowerment schemes to the edging local community. The potentials of environmental services are Koto Panjang reservoir and several waterfalls around and in the area. Currently, the utilization of environmental services was carried out by the community and based on natural sustainability with the local wi

Heavy Metal Contamination In Kotopanjang Dam, Indonesia

Heavy metal contamination has been reported in commercial fish in the Kampar River as the source of water for the Koto Panjang Reservoir. Heavy metal investigations (Pb, Cd, Zn) in water, sediment and their accumulation were carried out on 6 important commercial fish species, namely Cyprinus carpio, Oreochromis niloticus, Osphronemus gouramy, Hemibagrus nemurus, Channa micropeltes, Barbonymus schwanefeldii). Such accumulation is observed in gill, kidney and muscle tissue. The results showed that the Zn concentration was the highest in water and sediment, followed by Pb and Cd. Similar heavy metal sequence concentrations were found to be accumulated in all the analyzed tissues by means of an accumulation pattern in the kidney, followed by gills and muscle in all fish species. Metal concentrations in the muscles of all fish species meet limits for human consumption.

The Study of Social and Cultures’ Society at Koto Panjang Reservoir Catchment Area in the Lima Puluh Kota and Kampar District

The construction in at Koto Panjang reservoir catchment area Lima puluh Kota and Kampar district caused by the land use change that continues to occur due to changes in the social and cultural conditions of the community not only as a supplier of electricity in Sumatra's interconnection but also causing floods. Therefore, the aim of the research to studying about social condition and culture after the construction at Koto Panjang reservoir catchment area in Lima puluh Kota and Kampar district. The type of this research is a qualitative research, with data collection techniques using questionnaires, observation, interviews, and documentation. Furthermore, the data obtained were analyzed descriptively by using percentages to describe the social and cultural conditions of communities in the study area. The results showed that the forests exist around the Koto Panjang reservoir catchment area is customary lands society, where the participation of traditional leaders in the management of forest areas is still low, as seen from the absence of the customary rules (values/norms) which restrict the activities of people in the forest, so that people can perform economic activities through the farming and agricultural freely. Agriculture and farming activities to improve the local economic effect on floods and landslides.

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia.

Background: The capture fishery sectors in the river and reservoir play an important role in the Indonesian economy through increased income and diversification of livelihoods. The present study was conducted to ascertain fish diversity and their distribution pattern in the upstream and downstream areas of Koto Panjang Reservoir, Riau Province-Indonesia. Methods: Fish samples were collected for a period of 12 months using a variety of fish nets at four sites; Koto Mesjid (KM) and Batu Bersurat (BB), located in the upstream area of Koto Panjang Reservoir and Rantau Berangin (RB) and Kuok (KK), located in the downstream area of Koto Panjang Reservoir. Data obtained were analyzed using standard taxonomic keys based on morphometric characters. Results: A total of 44 species belonging 19 families and 33 genera were recorded in the study area. Alpha diversity indices showed that fish diversity in this area was quite high (Shannon's index = 2.10 and Simpson-D = 0.21) and evenness was low (evenness H/S =0.19). The fish in KM and BB sites (upstream) were from eight and 11 families, respectively. In RB and KK sites (downstream), fish were from 16 and 15 families, respectively. In KM, BB, RB and KK sites, the dominant family was Cyprinidae, comprising 33.45%, 50.95%, 43.04% and 39.35% of all fish caught at each site, respectively. Exotic species, especially Nile tilapia, were 20.15%, 14.11%, 5.62%, and 5.34%, respectively. Some differences were also noted between the upstream and downstream reservoirs, with a slight increase in exotic species in the upstream reservoir over the study period (from 11.39% vs. 34.66%), corresponding to decrease of native species (from 88.61% vs. 65.34%). Conclusions: The diversity and distribution of fish fauna were varied in upstream and downstream areas of Koto Panjang Reservoir. The exotic species were found to be dominant in the upstream reservoir areas.

Plankton Community Structure in PLTA Koto Panjang Reservoir, Kampar District, Riau Province

Koto Panjang Hydroelectric Power Plant is one of the reservoirs in Riau Province, many activities in Koto Panjang. Plankton is one of the organisms that is influenced by this condition. This study aims to determine the plankton community structure in Koto Panjang. The study was conducted on May 2019. Survey methods were used in this research. Samples were taken 3 times, once / weeks, in 3 different areas. One hundred liters of water was sieved into 125 ml using a plankton net number 25. The plankton was sampled was fixed using a Lugol solution and identified using a binocular microscope. There were 11 classes of plankton in Koto Panjang, 8 classes of phytoplankton and 3 classes for zooplankton. The value of plankton species diversity index (H’) is ranges from 4.86 to 5.35, dominant index (C) 0.03-0.05 and equitability index E 0.54-0.62. The plankton community structure in the Koto Panjang Reservoir is categorized as good.

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

Background: The capture fishery sectors in the river and reservoir play an important role in the Indonesian economy through increased income and diversification of livelihoods. The present study was conducted to ascertain fish diversity and their distribution pattern in the upstream and downstream areas of Koto Panjang Reservoir, Riau Province-Indonesia. Methods: Fish samples were collected for a period of 12 months using a variety of fish nets at four sites; Koto Mesjid (KM) and Batu Bersurat (BB), located in the upstream area of Koto Panjang Reservoir and Rantau Berangin (RB) and Kuok (KK), located in the downstream area of Koto Panjang Reservoir. Data obtained were analyzed using standard taxonomic keys based on morphometric characters. Results: A total of 44 species belonging 19 families and 33 genera were recorded in the study area. Alpha diversity indices showed that fish diversity in this area was quite high (Shannon’s index = 2.10 and Simpson-D = 0.21) and evenness was low (evenness H/S =0.19). The fish in KM and BB sites (upstream) were from eight and 11 families, respectively. In RB and KK sites (downstream), fish were from 16 and 15 families, respectively. In KM, BB, RB and KK sites, the dominant family was Cyprinidae, comprising 33.45%, 50.95%, 43.04% and 39.35% of all fish caught at each site, respectively. Exotic species, especially Nile tilapia, were 20.15%, 14.11%, 5.62%, and 5.34%, respectively. Some differences were also noted between the upstream and downstream reservoirs, with a slight increase in exotic species in the upstream reservoir over the study period (from 11.39% vs. 34.66%), corresponding to decrease of native species (from 88.61% vs. 65.34%). Conclusion s: The diversity and distribution of fish fauna were varied in upstream and downstream areas of Koto Panjang Reservoir. The exotic species were found to be dominant in the upstream reservoir areas.

Diversity and distribution of fish fauna of upstream and downstream areas at Koto Panjang Reservoir, Riau Province, Indonesia

Background: The capture fishery sectors in the river and reservoir play an important role in the Indonesian economy through increased income and diversification of livelihoods. The present study was conducted to ascertain fish diversity and their distribution pattern in the upstream and downstream areas of Koto Panjang Reservoir, Riau Province-Indonesia. Methods: Fish samples were collected for a period of 12 months using a variety of fish nets at four sites; Koto Mesjid (KM) and Batu Bersurat (BB), located in the upstream area of Koto Panjang Reservoir and Rantau Berangin (RB) and Kuok (KK), located in the downstream area of Koto Panjang Reservoir. Data obtained were analyzed using standard taxonomic keys based on morphometric characters. Results: A total of 44 species belonging 19 families and 33 genera were recorded in the study area. Alpha diversity indices showed that fish diversity in this area was quite high (Shannon’s index = 2.10 and Simpson-D = 0.21) and evenness was low (evenness H/S =0.19). The fish in KM and BB sites (upstream) were from eight and 11 families, respectively. In RB and KK sites (downstream), fish were from 16 and 15 families, respectively. In KM, BB, RB and KK sites, the dominant family was Cyprinidae, comprising 33.45%, 50.95%, 43.04% and 39.35% of all fish caught at each site, respectively. Exotic species, especially Nile tilapia, were 20.15%, 14.11%, 5.62%, and 5.34%, respectively. Some differences were also noted between the upstream and downstream reservoirs, with a slight increase in exotic species in the upstream reservoir over the study period (from 11.39% vs. 34.66%), corresponding to decrease of native species (from 88.61% vs. 65.34%). Conclusions: The diversity and distribution of fish fauna were varied in upstream and downstream areas of Koto Panjang Reservoir. The exotic species were found to be dominant in the upstream reservoir areas.

Otolith Growth Pattern of Puntius Schwanenfeldii from the Koto Panjang Reservoir, Regency of Kampar, Riau, Indonesia

Koto Panjang Reservoir is the largest reservoir in Riau Province, there are many efforts of floating net cage (KJA) by using feed (pellet) continuously. As a result of many feeds that settle in the bottom of the waters because it is not consumed by the fish.

Status Kualitas Air dan Kesuburan Perairan Waduk PLTA Koto Panjang, Provinsi Riau

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. Increased activity around the existing reservoir affecting water quality conditions that would interfere with function.This research was conducted in April-May 2015 with three observations on 5 stations with the aimed this research to analyzing, determining the status of water quality, and fertility status of waters in PLTA Koto Panjang Reservoir. Determination of reservoir water quality status based on parameters of physical, chemical, and biological methods STORET with water quality standard Class II and III for comparison. Fertility status was determined by Trophic Level Index (TLI) based on the brightness, chlorophyll-a, total nitrogen, and total phosphorus waters. The results showed that the status of Koto Panjang Reservoir water quality can be categorized as being contaminated with the quality standard Class III and heavily polluted the quality standard Class II. The parameters have exceeded the water quality standard Class II and III are ammonia, nitrite, and BOD5. The fertility status of the dam water is the eutrophic category with TLI values ranges from 4.6-5.2.