ABSTRACT This final project discusses a fifth-order convergence method to solve nonlinear equations by modifying Newton’s method using variational iteration techniques. It is analytically shown that the resulting method has fifth-order convergence. The computational results support the results of the analytical study. Numerical computation shows that the resulting method is comparable to…
ABSTRACT This study aims to (1) examine the pattern of communication networks, (2) the actors involved in the communication network, (3) and their role in oil palm farmers in Suka Maju Village, Bagan Sinembah District, Rokan Hilir Regency. The sampling method used in this study is a non-probability sampling technique consisting of purposive sampling and snowball sampling techniques. The re…
ABSTRACT Currently, metal joining by welding method is widely used in both building construction and machine construction. However, in its development the connection method has problems, especially in metal in the form of rods, if using liquid welding the penetration produced only around the rod, not to the core of rod, then one solution is to use the friction welding method. The friction weld…
ABSTRACT This study aims to analyze marketing channels, marketing margins, marketing profits, farmer's share, and marketing efficiency in the rubber marketing auction system in Kuantan Tengah District, Kuantan Singingi Regency. The sampling method used for farmers is random sampling as many as 42 people and sampling traders using the census method as many as 8 people. The results showed that t…
ABSTRACT This study aims to determine the factors of delay in replanting smallholder oil palm plantations, to find out the source of income of the planters during the replanting period, and to formulate a replanting strategy of smallholder oil palm plantations. This research was conducted in Bagan Sapta Permai Village, located in Rokan Hilir Regency, Riau Province. This study uses a survey met…
ABSTRACT This study aims to determine the effect of adding durian seed flour to the quality (organoleptic and proximate) of the nugget of stingray (Ilisha elongate). The research method used is experimental, which is processing the prickly fish nuggets with the addition of durian seed flour. Non-factorial Completely Randomized Design (CRD) was used with 4 levels of treatment, namely N0(0%), N1…
ABSTRACT This study aimed to determine the texture characteristics of hakao dim sum wrappers fortified with seaweed flour (Eucheuma cottonii). The research method used was a non-factorial Completely Randomized Design (CRD) with 4 levels of treatment, namely K0 (0% seaweed flour), K1 (60% seaweed flour) K2 (70% seaweed flour) K3 (80% seaweed flour). The test parameters were organoleptic quality…
ABSTRACT Tilapia is a food ingredient that is easily subject to decay and damage (perishable food). This damage can occur biochemically as well as microbiologically. Mangrove fruit (Sonneratia caseolaris) contains antibacterial compounds that can inhibit the growth of microorganisms that cause decay in fishery products. Therefore, this study was conducted to determine the effect of the concent…
ABSTRACT Caulerpa lentillifera is a green seaweed that has bioactive compounds and antioxidant activity. This study was aimed to determine the yield, bioactive compounds, and antioxidant activity of dried Caulerpa lentillifera extract. The research method used is explorative, by extraction using different solvents (methanol, ethyl acetate, and n-hexane) and the data were analyzed descriptively…
Abstract Catfish (Pangasius sp.) is one of the freshwater fishery commodities that has high economic value. Catfish rapidly decays, so an alternative is needed to extend its shelf life, such as Bekasam fermented products. Bekasam is traditionally processed with the addition salt and carbohydrates. Carbohydrates in the manufacture of Bekasam serve as an energy source for lactic acid bacteria. B…
ABSTRACT Squid ink contains secondary metabolites that function to avoid enemy attacks. Several secondary metabolite compounds have been able to determine the presence of antioxidant activity. Maceration is a way to get extracts and bioactive compounds in a sample. This study aimed to identify bioactive compounds and determine antioxidant activity in L. duvauceli ink extract. The method in thi…
ABSTRACT Tilapia (Oreochromis niloticus) was one of the large freshwater fish commodities in Indonesia. The fish has the potential as a raw material for fish protein hydrolysates. Fish protein hydrolysates use specific and extensive ongoing enzymes capable of influencing the formation of peptides and amino acids. This study aimed to determine the effect of the addition of different concentrati…
Abstract This research was conducted in March 2022 in the waters of the village of East Bantan, Bantan District, Bengkalis Regency, Riau Province. This study analyzed the level of environmental friendliness of gill net fishing gear obtained from fishermen by filling in the respondents. The gill net material is made of PA Monofilament. There were 9 types of fish caught during the study, namely …
Abstract The feasibility analysis of the boat lift net business aims to find out whether the KM Sembari 05 boat lift net with a boat weight of 30 GT is feasible to be made into a fishing business or not based on business feasibility analysis. Investment costs incurred for the operation of the KM. Sembari 05 boat lift net is IDR 1,005,400,000, production costs for 1 year for fixed costs and oper…
ABSTRACT The productivity of kurau net fishing gear is one of the important factors to increase catches. Many fishermen have caught fish using kurau nets in Sungai Raya waters. Kurau fish catches based on weight obtained as the main catch as much as 79.8% and the rest as by-catch as much as 20.2%. From the results of interviews with fishermen, the Kurau Net catch fishery has been overfishing. …
Abstract The fishing hooks thats commonly used by fishermen in Sungai Raya Waters are the O'shugnessy and J type. Main factors for the successful operation of fishing gear. The purpose of this study was to determine the differences in catches from the two types of hooks used in longline fishing gear and their benefits, namely to provide data and information about the effectiveness of using lon…
Abstract The longline fishing gear in the Bangsal Aceh Subdistrict is a secondary fishing gear from the pengerih fishing gear, the Acehnese Bangsal fishermen use the longline fishing gear when they are free or when fishermen just want to use it. This study aims to determine the construction of longline fishing gear, determine the composition of basic longline fishing catches using bait that is…
This research was conducted in June 2022 in Bagansiapiapi, Bangko District, Rokan Hilir Regency. The method used is survey method. This study aims to identification traditional shipyards in Bangko District. The results of research that has been carried out regarding the identification of traditional shipyards in Bangko District, Rokan Hilir Regency, resulted in the number of traditional shipya…
ABSTRACT This research was conducted in April 2022 in Bantan Sari Village, Bantan District, Bengkalis Regency, Riau Province. The method used in this study is a survey method which was carried out for seven days. This study aims to determine the number of differences and composition of basic longline catches in the morning and the day in the waters of Bantan Sari Village. The results of the r…
Abstract This research was conducted from March to April 2022. The study was conducted using a survey method that aims to determine the level of satisfaction of fishermen with the service of providing fishing supplies at the Fishery Port of Dumai City, Riau Province. Data was collected by distributing questionnaires to 33 respondents. Determination of the value of the level of satisfaction is …