This research was conducted on 01 February 2017 until 01 March 2017 located in Teluk Belukar Village, North Gunungsitoli District, North Sumatera Province. Fish auction place in Teluk Belukar Village, Gunungsitoli District, North of the current condition is not functioning and active. The fishing fleet used by fishermen boat without motor, boat and motor boat with capacity of 3 GT - 7 GT. The f…
The thyroxine hormone (T4) in low concentrations can increase fish growth. The growth of fish influenced by its environment such as photoperiode (lighting periode). This study aims to find best doses of the thyroxine (T4) to increase the growth of baung (Mystus nemurus) that are maintained with photoperiode. The experimental method using a factorial randomized design with two factors and three…
The aim of this research was to find out the influence and biofertilizer different to increase phytoplankton abudance, and water quality parameters. This research was conducted from September to December 2016 in the Peat Land Kualu Nenas village, Tambang Subdistrict, Kampar Regency, Riau Province. The method used in this study is an experimental method, using a Complete Random Design (CRD) with…
There are three main enzymes that play in feed digestion that are protese, amylase and lipase. The activity of each enzyme develops varies depending on fish species, feed, and environmental factors. The aims of this study was to: 1) determine the relationship of larvae age with mouth opening and enzyme activity, 2) determine the relationship of larvae age with the amount of feed consumed and th…
This study aimed to determine the latest condition of terubuk fish resources, the condition stock and its distribution in Riau Province Waters by using acoustic data acquisition. This research was conducted during the period of April to November 2015 and continued until September 2016. This study used survey method. The object of this study was terubuk fish, and the location of this study was h…
Tuhemberua Subdistrict has beautiful coastal that potencial for marine ecotourism area.A research aims to review the objects and issues of marine ecotourism has been conducted from February to April 2017. The study areas Marisa Beach, Tanayao Beach, Botogawu Beach and Fofola Indah Beach. A survey method was applied and data obtained from 189 respondents weredescriptively analyzed. Results sho…
Kryptopterus apogon is one of freshwater fishes that inhabit the Danau Baru oxbow lake. This study aimed to understand the stomach content of the fish living in the lake and also to understand itsreproductive biology during the period of Desember-Februari 2017. The number of fish captured were 45 fishes( 24 females and 21 males). The stomach contentwas analysed using a gravimetry method, while…
Study of carbon stock and CO2 sequestration on coastal ecosystem of the eastern part of Bintan Island Kepulauan Riau Province has been conducted on April 2016. The potencies of carbon stock and CO2 sequestration within conservation area (Station 1) and anthropogenic area (Station 2) on mangrove ecosystem, also tourism area (Station 1) and conservation area (Station 2) on seagrass ecosystem were…
Utilization of biological compounds such as enzymes derived from microorganisms such as bacteria and fungi is currently increasing, in line with their development and necessary in various industries. In the field of fisheries, cellulase enzymes are also known to be used in treating organic waste in shrimp ponds cultivation and waste from seaweed processing. Enzyme-producing microorganisms are o…
The use of turmeric, galanga, and ginger as an alternative feed supplement have antibacterial, antimicrobial, increase the growth rate and immune system of fish. The aim of research to was dose of herbal supplements and stocking densities that were effective in improving the health status of fish and the growth rate of striped catfish. The method used in this research is the experimental method…
Manipulation of photoperiod may affects the bahavior as well as physiology of fish in general, while the addition of turmeric powder in fish feed may increase the health status of the fish. By manipulating the photoperiod and feeding the fish with turmeric enriched fish feed pellets, the growth of the fish might be boost up. To understand the effects of photoperiod manipulation and turmeric en…
Dumai City is one of 12 regencies/cities in Riau Province with 1,727.38 km2 of area. One of the environmental problems is the potential for pollution in coastal waters caused by various spatial use activities such as the oil industry area consisting PT. CPI (Chevron Pacific Indonesia), PT. Pertamina, the palm oil processing industry (CPO) of PT. BKR (Bukit Kapur Reksa) and land conversion, huma…
There are antibacterial compounds in the mango seed. Thus the extract of that seed may be used as antibacterial to prevent the growth of bacteria that attack fish such as Edwardsiella tarda. To understand the type of bioactive compounds present in the mango seed extract and the effectiveness of mango seed extract in hampering the growth of E. tarda, a study has been conducted in August to Nov…
The research was conducted from July to December 2018 which aims to estimate the amount of carbon stock storage in wetland ecosystems that cover mangrove to peatland in Sungaitohor Village. Survey method was applied and sampling was done by non-destructive method that is without harvesting, so as not to change the ecological function of the forest. Data of carbon pool biomass was analysed and c…
Agglutination occurs due to antibody and antigen reaction may be used as a basis to develop a test kit to detect the presence of bacteria that cause fish disease rapidly. To understand whether the antibody- antigen reaction of E. ictaluri can be used to detect the Enteric Septicemia of Catfish (ESC) disease, a research has been conducted from September to December 2018. Antibody was collected f…
Indonesia has a huge potential for disaster related to changes in the Coastal region and small islands. As a step in efforts to mitigate and adapt to disasters in the coastal areas and small islands, the government has set a target of marine conservation areas of 20 million hectares by 2020. Rangsang Island is one of the small islands in the Meranti Islands Regency, Riau Province, which deals …
Tenualosa macrura is migratory fish species that used to migrate to the Siak River downstream for spawning. The population of that fish, however, declining and it may be caused by environmental degradation and fish exploitation. To understand the carrying capacity of Bengkalis strait, river mouth of the Siak River and Padang strait that represent as migratory area of the fish and those area ha…
The fishing community is one of the communities that needs attention from the government, from 2012 the Bengkalis District Government has created a Village Empowerment Program (PPD) in the form of a Savings and Loan Village Economic Unit (UED-SP), this program can help improve the economy of village-based communities entrepreneurship. The purpose of this study is to evaluate the UED-SP empowerm…
This study was conducted from February to Mei 2019 and that locate was Laboratorium Parasit dan Penyakit Ikan. This study aims to determinate the effect of giving turmeric flour on histological structure of Pangasius hypophthalmus. The method in this research was the experimental method using the Completely Randomized Design (CRD) with one factor and five treatment levels and three time replica…
The presence of antibiotic-producing bacteria from microhabitat in mangrove ecosystems can be useful to produce new antibiotics for industrial and environmental conservation. Mangrove ecosystems in Dumai and Siak have the potential to possess antibiotic-producing bacteria that have not been much studied. The objective of this research was to obtain antibiotic-producing bacteria from extreme mi…