This study aims to determine and describe: 1) How to plan extracurricular activities at SMKN 2 Taluk Kuantan, 2) How to organize extracurricular activities at SMKN 2 Taluk Kuantan, 3) How to implement extracurricular activities at SMKN 2 Taluk Kuantan, 4) How to evaluate extracurricular activities at SMKN 2 Taluk Kuantan. This research is a descriptive qualitative research using a descript…
This study aims to examine and analyze the effect of profitability, firm size, foreign ownership and Good Corporate Governance variables on capital structure and firm value. to test and analyze the effect of profitability, firm size, foreign ownership and Good Corporate Governance variables on firm value through capital structure and to test and analyze the effect of capital structure on f…
The purpose of this study was to determine and analyze the influence of internal and external factors that affect the performance of costs, time, and project quality of PT. Len Rekaprima Universe. The population in this study were employees of PT. Len Rekaprima Semesta who deals with operations and project management. The sampling technique used in this research is quota sampling, so that …
Abstract Snakehead fish (Channa striata) and barau fish (Hampala macrolepidota) are commonly found in the Koto Panjang Dam. As heavy metal containing pollutans such as domestic and plantation wastes enter the water, the remains of the heavy metals may be accumulate in tissue of fish living in that area. A study aimed to determine the content of Pb in the gills, kidneys, and muscle of those fish…
ABSTRACT Microalgae have the potential as raw material for biofuels, such as biodiesel and bioethanol. This is to determine the availability of raw materials found in nature, which can be seen from the oil or lipid content. The purpose of this study was to determine the types, abundance, biomass, and lipid content of the 3 microalga species that were the largest. This research was conducted in…
Abstract Anabas testudineus is one of the freshwater fishes that can be found in the Teluk Petai Lake. The research aimed to find out the type of food consumed by that fish has been conducted from October to November 2020. Sampling is done 4 times at intervals of time once a week. The number of fish caught during the study was 95, but 17 of them had empty stomachs and they cannot be analyzed. …
Abstract Goldfish can be found in the Koto Panjang Reservoir. In the vicinity of the reservoir waters, many anthropogenic activities result in heavy metals entering the water and thus accumulating in organisms living in the reservoir waters. The purpose of this study was to determine the levels of Pb in water and fish organs (gills, kidneys, and meat), as well as to determine the condition of t…
Abstract A study aimed to assess the aquatic carrying capacity in the Bandar Kayangan Lembah Sari Reservoir, Rumbai Pesisir District, Pekanbaru City, Riau Province. The carrying capacity was determined based on primary productivity using chlorophyll-a concentration, which is indicating the existence of phytoplankton in waters. This research was conducted April-May 2018. Samples were taken at 4…
Abstract Microplastics originated from degraded plastic materials may be flown to water body and accidentally swallowed by aquatic organisms. A research aims to understand the microplastics in the water body and in the stomach of fish living in the Lubuk Siam lake was conducted from September to November 2020. Samplings were conducted 3 times, once/ month, in 3 sampling points. In each samplin…
Abstract In the Koto Panjang Reservoir the microplastic may originated from the degraded plastic waste as well as degraded plastic net from the fish culture cages. The microplastic may be accidentally engulfed as fish swallowing their food. To understand the microplastic present in the stomach of wild common carps living around the fish net cages, a study was conducted in December 2020- Februa…
Abstract Helostoma temminckii is a type of fish that lives in the Lubuk Siam oxbow lake and has high economic value. The fish capture activities, however, are conducted throughout the year and it may lead to reducing the fish population. A study aims to determine the standing stock, growth rate, mortality, and exploitation rate of H. temminckii in that lake was conducted in January to February…
Abstract Helostoma temminckii is a type of fish that lives in the Lubuk Siam oxbow lake and has high economic value. The fish capture activities, however, are conducted throughout the year and it may lead to reducing the fish population. A study aims to determine the standing stock, growth rate, mortality, and exploitation rate of H. temminckii in that lake was conducted in January to February…
ABSTRACT Fish cultivation activities in floating net cages (KJA) produce residual feed and residual metabolism. This study aims to look at the fertility status and influence of floating net cages (KJA) on the fertility rate of the waters around the Dam Site of PLTA Koto Panjang Reservoir. Sampling was conducted at three stations, namely station 1 (slightly KJA), station 2 (medium KJA), and sta…
Abstract The quality of peat water in general is relatively low and it is needed to be treated by using a coagulation system. Mixture of lime, alum and bentonite might be used as coagulant agents. This study aims to determine the effectiveness of different dosages of lime, alum and bentonite in improving the quality of peat water. Peat water samples were obtained from the Kualu Nenas Village, …
Abstract Tanjung Kudu lake is an oxbow lake that receive water from the Kampar River during the rainy season. This lake is inhabited by many fish species. However, the information about the type of fish in that area is limited. To understand the types of fish present in the Tanjung Kudu lake, a study has been conducted in August to December 2020. Fish sampling were conducted every day for two …
ABSTRACT Research on the relationship between phytoplankton abundance and chlorophyll-a concentration was conducted in December 2020 in Tanjung Kudu Lake and Parit Lake, Tambang District. The aims of this study was to determine the relationship between phytoplankton abundance and chlorophyll-a concentration. There were 3 Station, namely Station 1 (inlet), Station 2 (middle of the lake), and St…
Abstract Phytoplankton is primary producer of natural feed and has an important role in the water. This research was conducted in December 2020 in Tanjung Kudu Lake and Parit Lake. A sampling at three stations, namely Station 1 (inlet), Station 2 (in the middle of the lake), and Station 3 (end of the lake). Sampling was done 3 times one/week. Water quality parameters measure were temperature, …
ABSTRAK Environmental condition and water quality in general may affects the health status of fish and it represent in the structure of fish organ such as gill, kidney and liver. To understand the structure of gill, kidney and liver of Pangasius hypopthalmus that live in the Tanjung Kudu Lake (good water quality) and in the Sungai Sail River that has been polluted, a study has been conducted o…
Abstract Thynnichtys thynnoides (motan fish) is one of the freshwater fish that inhabit the Tanjung Kudu Lake. This fish has high economic value and has a delicious and tasty meat. The price of motan fish in the market ranges from around Rp. 20.000-30.000/kg. To understand the morphometric, meristic and growth pattern of this fish, a research was carried out in Tanjung Kudu Lake from September…
Abstract Zoobenthos commonly attached in the roots, stems, leaves and substrate in the mangrove area of the Sungai Rawa village. A study aims to understand the structure of zoobenthos community in that area has been conducted in April-Mei 2019. Zoobenthos were collected manually in 3 station, namely station 1 (mangrove ecotourism), station 2 (harbor and settlement), and station 3 (natural ecos…