ABSTRACT Bacteria B. cereus SN7 is one of the bacteria that can be utilized in the manufacture of Single-Cell Protein (SCP). SCP can be used as a substitute for protein from conventional sources such as agricultural, fishery and animal husbandry products. Encapsulation is done to stabilize cells which has the potential to increase the viability and stability of probiotics during production, st…
ABSTRACT This research was carried out in February–March 2023, by taking samples from Cingkuak Island, Painan City, West Sumatra Province. The aim of the research is to identify the type and abundance of solid waste on Cingkuak Painan Island. The method used is survey method. Samples of solid at different times before weekend (Thursday and Friday), the weekend (Saturday and Sunday), and after…
ABSTRACT Oil pollution in the waters is one of the factors that affect the abundance of fhytoplankton, especially the diatom. The Waters of Bengkalis Strait, Pangkalan Jambi Village Bengkalis Regency are used as international shipping lanes and industrial areas. This study aims to analyze the total oil content, calculate the abundance of planktonic diatoms, and explain the relationship between…
ABSTRACT This study was conducted in March 2023 at the Pecinta Alam Bahari (PAB) water area in Dumai City, Riau Island. This study's goal was to identify the varieties of epilithic diatoms that exist, where they are found, and what the aquatic environment is like for them. The technique utilized is method survey, the sampling was done at three jetty poles, samples were taken at the lowest tide…
ABSTRACT This research was conducted in February - March 2023, located in the waters of Poncan Gadang Island, Sibolga City, North Sumatra Province. The aim of this study was to analyze the density of seagrass at each station in the research location, analyze the differences in biomass and carbon stocks in the above ground biomass (Agb) and below ground biomass (Bgb) parts between stations, the…
ABSTRACT This study was conducted in March 2023 in the waters of the Rupat Strait, Riau Province. This study aimed to determine the total suspended solid (TSS) concentration, the type and abundance of phytoplankton, and the relationship between TSS concentration and the abundance of phytoplankton in the Rupat Strait waters. The method used was a survey method, the location of the study was…
ABSTRACT Teluk Marunggai Nagari Nagari Nyalo Beach is one of the new tourist areas in Pesisir Selatan Regency that will be in high demand by tourists over time, which will have an impact on the life of biota on the beach, including macrozoobenthos. This survey was conducted in March 2023 in the intertidal zone of Marunggai Bay Beach, Nagari Sungai Nyalo, Koto Ampek Tarusan District, Pesis…
ABSTRACT The intertidal zone or tidal zone is that part of the coast that is inundated with water during high tide (turns into water) but dry during high tide (turns into land). One of the commonly encountered biota living in the intertidal area is the gsatropoda. The abiotic factors that influence the life of gastropods are the physics and chemistry of the waters including temperature, pH, sa…
ABSTRACT Coral reefs have a high conservation value because they have highly protected biological species such as protecting aquatic ecosystems, sources of nuftah plasma, while other functions of coral reefs include protecting coastal ecosystems, tourist attractions, having high benefits for the wider community. This study aims to analyze and compare the condition and cover of coral reef in th…
ABSTRACT This research aims to analyze the rubber factory wastewater that can be used as a growth media for Nannochloropsis sp. with different doses of fertilizers. This research used experimental method with Conway and Guillard fertilizer media. The experimental design used is Factorial Complete Randomized Design analyzed by ANOVA (Analysis Of Variance). The use of rubber factory liquid w…
ABSTRACK Mangrove forest ecosystems have unique natural resources with potential as ecotourism areas. The application of ecotourism systems in mangrove forest ecosystems is an approach in the sustainable use of mangrove forest ecosystems. This study aims to identify the characteristics of mangrove forests, tourism suitability index, and development strategies for mangrove ecotourism in Histori…
Abstract This study aims to determine the diversity of gastropods and water conditions in Sironjong Gadang Island, South Coastal Regency. This research was conducted in August 2022. The research location consists of 3 stations. Along the transect line placed 3 plots with a size of 1m x 1m. the results of the study found gastropod species consisting of 4 (four) families, 4 (four) genus, 8 (…
ABSTRACT Batam City is the largest city in the province of Riau Archipelago and is a strategically located tourist attraction. There are several beaches in Batam that are used as tourist attractions, such as Viovio Beach, Elyora Beach, and Melayu Beach. One of the problems in tourist areas is the presence of rubbish that disturbs the beauty of tourist sites. Waste is a problem for people all o…
Abstract This research was conducted from July to November 2022 in Pelalawan Regency, Riau Province. The purpose of this study was to determine the relationship of hydrodynamic patterns with suspended solids distribution patterns and to determine the concentration value of suspended solids distribution in the Kampar River estuary. This research method is survey and discussed descriptively with…
Abstract The Indian Ocean Dipole (IOD) phenomenon is a phenomenon that occurs in the Indian Ocean due to differences in sea surface temperature anomalies between the Western Indian Ocean and Eastern Indian Ocean regions. This interaction produces high pressure in the Eastern Indian Ocean (South of Java and West of Sumatra) which causes the flow of air masses to blow westward. The IOD phen…
ABSTRACT This research was conducted in June 2022 in the coastal area of Saruang Sakin, Sungai Nyalo Village, West Sumatra Province. This study aims to look at the relationship between sediment organic matter content and the abundance of macrozoobenthos. The method used in this study is the survey method, in which samples will be taken directly at the research location, sediment sampling using…
ABSTRACT This research was conducted in the intertidal zone of Muara Air Haji Village. The method used in this study was a survey method, the purpose of this study was to determine the type, abundance, diversity and distribution pattern of macrozoobenthos in the intertidal zone. While sampling was carried out using three stations and each station consisted of 3 transects and three sub-zones co…
Mangrove forest are able to store carbon from the air through photosynthesis by converting CO2 into biomass based on ecological function. The better ability of mangrove forest to absorb CO2 has not been widely recognized by the wider community, this is one of the reasons why people do not consider the existence of mangrove forest and not maintain their sustainability. Based on that reason, this…
ABSTRACT Various human activities to fulfill their welfare by producing food, drinks and other goods which in turn can generate solid waste and liquid waste. Solid waste often contaminates residential areas, coastal mangroves, and the aquatic environment. In addition, the mangrove coast which is used as a tourist area can also receive solid waste as a result of local activities. This study…
Abstract Anthropogenic activities influence the water quality of the Rupat and the Malacca Straits in Dumai City and along the coast of the Malacca Strait. Various activities along the stream, such as land clearing, especially for industrial activities, settlements, and infrastructure development, cause pressure on the environmental system. Climatological phenomena or climate change also influ…