In tofu industry, fresh liquid waste commonly kept in waste processing pond to increase its quality before being flown to a river. A research aims to understand the effectiveness of tofu liquid waste processing ponds in reducing N and P and the effects of processed waste input toward phytoplankton abundance in the Tarai River, a study has been conducted in February-April 2017. Samplings were co…
Nitrate is one of water quality parameters that can be used for characterizing the trophic state of a lake. To understand the vertical nitrate concentration in the Diatas Lake, a research has been conducted in February – March 2017. There were three sampling stations namely Station 1 (inlet area), Station 2 (in the middle of the lake), and Station 3 (outlet area). In each station, there were …
Kampar Kanan River has strong current and it may affect the types and abundance of periphyton present. To understand the type and abundance of those organisms, a study has been conducted in February to March 2017. Parameters measured were the types and abundance of theperiphyton that attached in the plastic substrate, temperature, transparancy, current speed, depth, pH, DO, free CO2, nitrate an…
Lubuk Siam lake is an oxbow lake that is located in the Siak Hulu sub-district, Kampar district. There were several human activities around the Lubuk Siam Lake such as agriculture and palm plantation. This study aims to understand zooplankton vertical distribution in that lake and it was conducted in February to March 2017. There were 3 stations, namely Station 1 (inlet area), Station 2 (fish c…
There are several human activities around the Lubuk Siam Lake such as plantation and agriculture. Anthropogenic activities will influence nutrient in waters. To understand the concentration of chlorophyll-a in the Lubuk Siam Lake, a research was conducted in February - March 2017. There were 3 stations namely Station 1 (inlet area), Station 2 (fish cage area), and Station 3 (outlet area). In ea…
Trophic State Index (TSI) is one of methods used to determine the trophical state of waters. The TSI was calculated based on physical, chemical and biological parameters and it is more representative for analyzing the trophical state of waters.This research was conducted in February-March 2017 and it aims to understand the trophic state of the Lubuk Siam lake. There were three sampling stations…
There are several human activities such as agriculture and palm plantation are conducted around the Lubuk Siam Lake and thus the remains of fertilizer may enter to the water and affects trophic state in general. To understand the trophic state of the Lubuk Siam Lake’s waters based on Vollenweider’s Trophic Index (TRIX), a research was conducted in February - March 2017. There were 3 samplin…
Maninjau Lake is a volcanic lake that is used for various human activities such as drink water sources, tourisms, transportation and aquaculture. Many activities contributes the input of organic and anorganic matters that affect water quality and the trophic state of the water in general. A research aims to understand the types and abundance of phytoplankton and the trophic state of the Maninja…
Featherback fish (Notopterus notopterus) is a type of freshwater fish that inhabit the Sail River. This fish has high economic value, the price is more than Rp 60.000/kg. Information on biological aspects of this fish, including morphometric, meristic, and growth patterns is rare. To understand the those characteristics, a research had been conducted from March-April 2017. There were 100 fishes…
Featherback fish (Notopterus notopterus) is a type of freshwater fish that inhabit the Sail River, Riau Province. To understand the reproductive biology of this fish, a study has been conducted from March to April 2017. Total fish captured was 70 (34 males and 36 females). Sex ratio between male and female was 1 : 1. The gonado somatic index (GSI) of the male was 0.06-0.78 % and that of the fem…
Sago liquid waste is rich in micro and macro nutrient that can be used for growing Chlorella sp. To understand the effectiveness of the waste as a nutrient source to grow Chlorella sp., a study was conducted from November – December 2016. Different amount of sago liquid waste was added to 3L of peat water, they were P0(0%), P1(5%), P2(15%) and P3 (25%) of peat water volume. The Chlorella sp. …
The biogass liquid waste originated from palm oil industry contains high nutrient and it can be used for growing microalgae such as Chlorella sp. To understand the effectiveness of the waste as a medium to grow Chlorella sp., a study was conducted from September – October 2016. The culture was conducted in the outdoor scale. There were 4 treatments applied, namely P0 (0% waste), P1 (15% w…
Seagrass ecosystem in the Malang Rapat village is inhabited by many types of gastropods. A research aims to understand the community structure of gastropods in the ecosystem Seagrass , has been conducted in November 2015. There were 3 stations, St 1 was in the fishing ground, St 2 was in the tourism destination area and St 3 was in the area with no human activity. Samplings were conducted 3 tim…
Phytoplankton is a microscopic aquatic organism that has limited movement. A research aims to determine types and abundance of phytoplankton has been carried out on December 2016 in the Parit Belanda River. There are three stations namely Station 1 (in the upstream), Station 2 (in the middle) and Station 3 (in the downstream). Samplings were conducted once/week for 4 weeks period. Water qu…
This research has been conducted in March 2017 which is held in Fishery Products Technology Laboratory and Fishery Products Chemical Faculty of Fisheries and Marine University of Riau Pekanbaru. The purpose of this study was to determine the effect of adding broccoli flour to nuggets of fish jelawat to consumer acceptance. This research uses experimental method, which is processing nuggets …
This research was aimed to determine the effect of addition of snakehead fish (Channa striata) protein concentrate on donut so that the correct amount of addition of catfish protein concentrate was obtained on donut processing which preferred by consumers. The methode used in this research was experimental methode, with Completely Randomized Design (CRD) non factorial and 4 levels of treatment …
The aim of the research was to determine the effect of fortification Chlorella sp. which can be used as a substitute for urea in the manufacture of nata de seaweed and the quality of nata de seaweed produced from fortified Chlorella sp powder. The method used was this research is experimental method that is making nata de seaweed which fortified with Chlorella sp. different amount . The design …
The study aimed to determine the effect of the use of seaweed (Eucheuma cottonii) as a substitution material to tapioca flour on the quality of snakehead fish (Channa striata) nugget. The method used was experimental method and composed as non-factorial, Completely Randomized Design (RAL). The factor of the treatment was substitution of tapioca flour with seaweed in the processing of snakehead …
This study aimed to evaluate the chemical, sensory and smoking yields of cultivated catfish (Hemibagrus nemurus). The samples were the catfish at the weight of 250 gs/eachobtained from thecultivation cagesin. Kampar River in the village of Sungai Paku in the Regency of Kampar the Province of Riau. The catfish were smoked in relatively low smoking temperature in between 50-70° C for different s…
The purpose of the research was to determine the effect of different drying time to nori seaweed (Gracilaria sp.) The method used was experimental with different of drying time of nori seaweed processing. The method used was experimental and composed as non factorial Completely Randomized Design (RAL), which consisted of 3 levels,namely:long drying 18, 20 and 22 hours. The parameters used were …