TSSand chlorophyll-aareimportant indicators of waterquality and fertility. Increased TSS inhibits light and photosynthesis of phytoplankton, thus reducing primary productivity. The research was conducted in February-April 2025, in the Sea Waters of Sepahat Beach, Bandar Laksmana District, Bengkalis Regency with the aim of analyzing and knowing the relationship between TSS and Chlorophyll-a cont…
This study was conducted with the aim of analyzing whether there are secondary metabolite compounds in Bruguiera sexangula mangrove leaves, to test the effectiveness of B. sexangula mangrove leaf extract in inhibiting the growth of A. hydrophila, P. aeroginosa, and S. aureus bacteria, to determine the effective concentration in inhibiting the growth of pathogenic bacteria in January - May 2025.…
Communication is a process involving two or more people to form or exchange information with each other. Pulau Terap Village is one of the villages that conducts floating net cage (KJA) fish farming. The problem faced by farmers is poverty, so they need patrons to conduct farming. The existence of a communication pattern in the working relationship between patrons and farmers can help the econo…
Tiger grouper fish farming is an activity that can be developed on Mentawai Island. This study aims to analyze the investment of tiger grouper fish business, Analyze the benefits and revenues and feasibility of tiger grouper fish farming business in Sikakap Village, Mentawai Islands Regency. The method used in this study is a descriptive approach with quantitative analysis of various factors th…
The development of the Lumban Bul Bul Beach tourist attraction does not only depend on the natural beauty and existing infrastructure, but also on the perception and support of the community. Communities have an important role in preserving nature and culture, as well as being hosts for visiting tourists. This study aims to determine the existing conditions and public perceptions of the develop…
This study aimed to determine the effect of substituting wheat flour with lindur mangrove-fruit flour on the qualityof onion cakes (color, aroma, taste, and texture), to identify the optimal substitution level that met the desired quality standards, and to examine the nutritional composition and characteristics of lindur mangrove-fruit flour as well as its impact on onion-cake quality. The expe…
This study aimed to determine the effect of adding seaweed flour on the quality characteristics of otak-otak made from white-lipped eel catfish, and to identify the optimal concentration of seaweed flour for those characteristics. The experiment used a non-factorial Completely Randomized Design (CRD) with four treatment levels: A0 (0% seaweed flour), A5 (5%), A10 (10%), and A15 (15%), each repl…
This study aims to determine the effect of adding agar-agar flour on the quality of biang fish sausage (Ilisha elongata) and to obtain the best addition of agar-agar flour on the quality of biang fish sausage (Ilisha elongata). The method used in this study is an experimental method, namely conducting an experiment to process biang fish sausage with the addition of agar-agar flour. The design u…
This study aims to estimate the stock of bigeye tuna at the Bungus Oceanic Fishing Port (PPS Bungus) over a six-year period (2018–2023) using surplus production models (Schaefer and Fox). The methods used include observation, primary data collection through interviews, and secondary data from logbooks and annual reports of PPS Bungus. The analysis results show that the Fox model is more suita…
Seagrass beds are one of the ecosystems that have many functions, especially for marine biota such as bivalves. The high exploitation of bivalves and the degradation of seagrass beds which are bivalve habitats can affect the composition and density of bivalve species associated with seagrass beds. This study aims to determine the type and density of seagrasses, the type and density of bivalves,…
This research aims to determine the types of fish caught in Lake Sepunjung and in the Artificial Habitat equipment at Lake Sepunjung, Rantau Baru Village, Pangkalan Kerinci District, Pelalawan Regency, Riau Province. This research was conducted in January-March 2024 in Lake Sepunjung, Rantau Baru Village, Pangkalan Kerinci District, Pelalawan Regency, Riau Province. This research was carried ou…
Carp reared in salinity media experience changes in the osmoregulatory system that can have an impact on organ performance, especially the intestines and kidneys. One of the efforts to increase the immune system of fish is by giving natural immunostimulants such as guava leaf flour. This research was conducted in August-October 2024 at the Biotechnology Laboratory, Faculty of Fisheries and Mari…
Ompok hypophthalmus is one of the endemic fish species of Riau. It has high economic value; however, the aquaculture of Ompok hypophthalmus has been declining.. This study aim to determine the effects of different corn oil enrichment dosages and durations on water fleas and their impact on the growth and survival of Ompok hypophthalmus larvae. This research is conduct on December 1, 2024 -Janua…
The perception of the fishing community about the communication style of the village head on the level of participation of fishermen in village activities at this time for them is not appropriate and cannot provide what they need. The purpose of this study is to analyze the fishermen's perception of the communication style of the village head, the level of fishermen's participation in village a…
Tenggek Prawn is a high value fishery commodity that dominates the catch in the waters of Tanah Merah District. However, increasing fishing activity in recent years has raised concerns about the potential for overfishing. This study aims to analyze the level of fishing effort for tenggek prawn using a bioeconomic approach under three conditions: maximum sustainable yield (MSY), maximum economic…
Kampar Kiri Hilir sub-district is one of the sub-districts in Kampar Regency which has the potential of the freshwater fisheries sub-sector businnes because it is supported by natural resources in the form of the Kampar Kiri River. This study aims to : (1) to calculate the economic value of capture fisheries resources in the Kampar River, Mentulik Village, Kampar Kiri Hilir sub-district, (2) to…
ABSTRACT Empty Palm Fruit Bunch (EFB) is a by-product of the palm oil industry that is abundant in Riau Province. The high cellulose content in EFB has the potential to be developed as a basic material for making activated carbon, which is the type of adsorbent most widely developed for heavy metal adsorption. This study aims to analyze the best carbonization temperature and time on the qu…
ABSTRACT Printing wastewater contains heavy metals such as lead (Pb) and copper (Cu), which are toxic. This study aimed to evaluate the effect of pH and stirring speed on the adsorption efficiency and capacity of Pb and Cu using a composite adsorbent of Spent Bleaching Earth (SBE) and Spent Mushroom Substrate (SMS) with a composition ratio of 25% SBE and 75% SMS. Characterization was conducted…
ABSTRACT Industrial printing wastewater contains heavy metals such as lead (Pb) and copper (Cu), which are toxic and difficult to degrade, thus requiring an effective treatment method. One alternative to reduce heavy metals is the adsorption method using a composite adsorbent made from Spent Mushroom Substrate (SMS) and Spent Bleaching Earth (SBE). This study aims to determine the removal …
ABSTRACT The problem of leaf litter and ketapang twig accumulation at the Faculty of Engineering, University of Riau, has prompted innovative efforts in its management. One approach that can be taken is to apply TOSS (Waste Management Technology at the Source) in managing this waste. This study aims to analyze the physical characteristics of biopellets produced from the TOSS biodrying pro…