the inclusion of water nutrients from human activities (residential, agricultural and industrial) could potentially lead to a change in physics, chemistry and biology in the s study waters. This study aims to determine the relation of the concentration nitrate, phosphate and silicate with diatom abundance in the Meral waters, the methode used is a survey methode, the determination of location o…
The level of electricity usage needs continues to increase each year in line with increased economic growth. One of the technologies used in producing electricity is the PLTU (Thermal Power Station) where PLTU Teluk Sirih is the first PLTU in West Sumatra that has been operating since 2013 and has a capacity of 2x112 MW. The existence of a power plant in the waters of Sirih Bay is thought to af…
This research was conducted on 2 september until 23 october 2019 at UPT of seeding laboratory department of aquaculture faculty of fisheries and marine university of riau. The purpose of this research is to know the best frequency of fertilization used quail feces fermentation, tofu waste fermentation and tapioca flour on resirculation system for increase biomass and Tubifex sp population. The …
Mangrove leaves (Rhizophora apiculata) contain flavonoid compounds, terpenoids,steroids, saponins, and tannins which function as antibacterial and can improve fish health. This research was carried out in August to October 2019. This research purpose was to know the proper dose of mangrove leaf (R. apiculata) added to the feed to improve fish health as seen from total leukocytes, leukocyte diff…
R. apiculata leaf extract has benefits as an herbal supplement that can be added to feeds, because it have componds like flavonoids, tannins, saponins, terpenoids, and steroids that can improve the health of jambal fish (P. hypophthalmus). This research was carried out in August to October 2019. The aim of the research was to obtain the best dose of R. apiculata leaf extract by added to feed to…
The aim of this research was to determine the effect of ovaprim, hCG and their combination on spawning success of lelan fish (Osteochilus pleurotaenia Blkr). This research was conducted from 6 September -27 october 2019 the Fish Hatchery and Breeding Laboratory, Fisheries and Marine Science Faculty, Riau University. The method used was an experimental method with a Completely Randomized Design …
This research was conducted in August-November 2019 at the Hatchery and fish breeding Laboratory, Faculty of Fisheries and Marine, Riau University. The purpose of this study was to study the injection of ovaprim and the hormone oxytocin with different doses of ovulation and hatchability of Nilem fish (Osteochilus hasselti). The method used in this study is an experimental method using a complet…
This research was conducted from October to November 2018 at the Fish Hatchery Lukup Badak, Central Aceh. The objective of the Study was to determine the optimum dose of probiotics to the growth and survival of fish larvae (Osteochilus kappeni). The design used was a Completely Randomized Design (CRD) with 4 treatments and 3 replications. P0: Without Probiotics 0 mL/L water, P 0,3: Dose Probiot…
Vaccines are weakened microorganisms aimed at raising the immunity of fish against a particular disease. The purpose of this research is to find out what is the best dosage of feed containing HydoVac vaccine on Siamese jambal siam fish (Pangasius hypophthalmus). This research has been conducted in April to August 2019 which is housed in the parasitic laboratory and fish disease Faculty of Fishe…
Anabas testudineus is type of fish commonly inhabit the Lubuk Siam Lake in Riau. However, information on reproductive biology of the fish is rare. To understand the biologycal aspects of this fish, a study was conducted. The fish was sampled once at two weeks for a month period, from July to August 2019. Parameters measured were sex ratio, gonad maturity level, Gonad Somatic Index (GSI), fecund…
A research was conducted to develop Learning cycle 5E based Student Worksheets (LKPD) in the material kingdom monera at X grade in Senior High School in the Teacher Training and Education Faculty of the University of Riau from July-December 2019. The research refers to the R & D research approach using the model 4D developed. The research was carried out until the development stage. The resear…
This study aims to explore bacteria that can degrade polyethylene from the Muara Fajar Pekanbaru landfill site to produce Bacteria material handouts in class X high school. The study was conducted at the Sumatra Biota Laboratory of Andalas University and the Microbiology Laboratory of the Faculty of Medicine, Riau University. Fajar Pekanbaru. The research took place in December 2017-May 2018. T…
The fisheries potency in the estuary of Rawa Mekar Jaya Village is high. A research aims to determine the fish community structure in that estuary was conducted in April-July 2019. Fish samples were taken in 3 stations, in the mangrove area (ST-1), reforestation mangrove area (ST-2) and around the residential area (ST-3). The fishes were captured using fishing rod, net traps (mesh size 1-2 inch…
This study aims to determine the quality of daily test questions made by biology teacher class XI of SMA Negeri 1 Pekanbaru in the 2018/2019 school year based on qualitative and quantitative analysis. This research was conducted in March 2019 to May 2019. This type of research is a qualitative descriptive study. The research instrument is a daily test question made by biology teachers consistin…
This study aims to develop a written test instrument based on scientific approach of the topic motion system on 11th grade in senior high school in October 2019 - January 2020. The research was conducted in two places, for validation and phase I limited trials conducted at Biology Education Campus FKIP UNRI and the test phase II limited trials were conducted at SMAN 8 Pekanbaru. This type of re…
Several activities in the Bakuok Lake contribute the input of organic and inorganic matters to the waters, and thus increase the concentration of nitrate and phosphate in the water. A research aims to understand the relationship between organic matter and nutrients (Nitrate and Phosphate) in the Bakuok Lake has been carried out in June-July 2019. There were three stations namely station 1 (arou…
This research aimed to describe the percentage of scientific literacy dimensions and character education content in science textbooks for junior high school grade IX. This research was carried out in Study Program Biology Education, Faculty of Teacher Training and Education, Riau University in June-November 2019. This research uses a qualitative approach with content analysis method. The resear…
Slaughterhouse liquid waste contains fair organic materials that can be used as nutrient source for growing Spirulina sp. The purpose of this study was to determine the effect of fermented slaughterhouse waste as alternative nutrients for the growth of Spirulina sp. This study was conducted in September-October 2019. RAL method was applied with 5 different concentrations, there were 0 ml/4L (P0…
Mangrove ecosystem in the Apar Village inhabited by numerous aquatic organisms, including bivalve. A research aim to determine the community structure of bivalve in the mangrove ecosystem has been conducted on July 2019. There was 2 station, with 3 plots/station and 5 subplots/plot. In each subplot, the bivalve were collected by hand. Result shown that there was 3 species of bivalve, namely Pol…
This research is backed by the independence of the child. Each child has different levels of emotional intelligence in the face of a problem in his life, where the child with emotional intelligence will have a good self control, a sense of responsibility for himself or to overcome the problems faced. This research aims to know the relationship of emotional intelligence with the independence of …