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Nur Arifin
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Gedung LPPM Universitas Riau, Kampus Bina Widya, Jl. H.R. Soebrantas Km 12.5, Panam. Pekanbaru, Riau - 28293. Indonesia
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INDONESIA
Asian Journal of Aquatic Sciences
Published by Universitas Riau
ISSN : 2655366X     EISSN : 27164608     DOI : http://dx.doi.org/10.31258/ajoas
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Asian Journal Of Aquatic Sciences is a journal publishes scientific articles from research by lecturers and other researchers in the waters sector. Focusing on aspects of aquatic ecology for the use of this habitat as an ecosystem for producing food (fisheries and agriculture) and its function for the earth's ecosystem. Covers aspects of biology, physics and chemistry, both for freshwater (rivers, lakes, swamps, reservoirs), brackish waters (mangrove swamps, river estuaries) and marine waters (coastal and offshore seas).
Arjuna Subject : -
Articles 543 Documents
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MORPHOMETRIC STUDY AND DENSITY OF Telescopium telescopium IN MANGROVE ECOSYSTEM OF SEKODI VILLAGE, BENGKALIS REGENCY, RIAU PROVINCE Alka, M Abdi; Mulyadi, Aras; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in August 2019 to determine the morphometric, density and sex ratio of Telescopium telescopium in Sekodi Village, Bengkalis Regency, Riau Province. Three sampling stations with three transects in each station were surveyed. The results showed that size of T. telescopium in areas far from community settlement were bigger than areas in the fishing boat lane and community settlement : 7.2 cm, 5.8 cm and 5.7 cm. The highest density was in areas community settlement and the lowest in the fishing boat lane. ANOVA test showed that there are no different of density between all the station. Sex ratio showed that T. telescopium was in the balance category (1:1)
SECONDARY METABOLITE CHARACTERISTICS OF HETEROTROFIC BACTERIA PRODUCTION AS ANTIMICROBIAL AT DIFFERENT SALINITY Apriyola, Nadya; Feliatra, Feliatra; Nurulita, Yuana
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted from March-June 2019. The purpose of this study was to determine the characteristics of secondary metabolites prduced by of heterotrophic bacterial from sea water Sungai Kayu Ara Village, Siak Regency as an antimicrobial and to determine the storage time of these bacteria by measuring at the optimal growth time. Five bacterial secondary metabolite extracts used were B, C, D, and H (B. cereus) and J (V. fluvialis) obtained from the collection of Marine Microbiology Laboratory, Department of Marine Sciences, Faculty of Fisheries and Marine sciences, University of Riau. phytochemical test showed that extracts of isolates B, D, and H contained saponin compounds, while isolate J contained flavonoid compounds, however, all extracts contained alkaloid compounds. Antimicrobial test indicated that J extract inhibited A. Hydrophila at concentration 500 µg/ml but the extract could not inhibit V. algynolyticus and Pseudomonas sp concentrations determined. In the bacterial storage time test, the optimal growth of each bacterial concentration at was 7th day incubation and decreased on the 14th day.
THE EFFECTS OF ADDING DIFFERENT CARBON ON GROWTH AND SURVIVAL RATE OF TILAPIA FRY (Oreochromis niloticus) Firmansyah, Rodhi; Arsanti, Arsanti; Panggabean, Nabilah Hanum; Nasution, Muhaimin Umri
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

The Utilization of appropriate carbon sources will have a good impact on the application of biofloc technology in aquaculture. This study aims to effects of adding different carbon on growth and survival rate of tilapia fry (Oreochromis niloticus). The fries were kept by the densities 30 fries/tank. This study used a completely randomized design (CRD) with 4 treatments and 3 replications. The treatments were the addition of different carbon sources on the media biofloc: A (tapioca), B (molasses), C (wheat flour), and K (control). The results showed that the absolute rate of weight and length were found on the treatment of molasses (B) was 5.84 grams, 3.5 cm and significantly different from the other treatments (P <0.05). While the highest survival rate is 83.33% at molasses (B). The mean temperature at 28.1 to 30.00 oC, the DO from 5.00 to 7.60 mg / L and pH 5.00-7.20.
THE ANALYSIS OF OIL CONTENT IN SEDIMENT AND COMMUNITY STRUCTURE OF MACROZOOBENTHOS IN BELAWAN WATERS OF MEDAN CITY, NORTH SUMATERA PROVINCE Tanjung, Doli Juni Setia; Amin, Bintal; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in March 2019 to determine the oil content in sediment, it’s community structure of macrozoobenthos and it’s relationship in Belawan Waters of Medan City, North Sumatera. Four sampling stations with five replications in each station were surveyed. The results showed that the average oil content in sediments exceeded the threshold had set by National Academy of Science. Macrozoobenthos found consists of Ocypode quadrata, Scyla serrate, Rotun dicauda, Panaeus sp, Murex tribulus and Nassarius olivaccus. The highest abundance was in Station 3 and the lowest was in Station 2. Diversity index in each station were generally very low. Dominance Index in Station 4 was medium, whilst the other stations were high. Evenness index showed in Station 3 and 4 were in high population, Station 1 was in medium population and Station 2 was in low population. Simple linier regression analyses between oil content in sediment with community structure of macrozoobenthos indicated negative correlation (Y = 10,5-0,0001x, R2 = 0,0004 and r= 0,02) which indicated that the higher the oil content, the lower the macrozoobenthos abundance in sediment.
MOLECULAR IDENTIFICATION OF PROTEOLITIC BACTERIA FROM MANGROVE SEDIMENT IN DUMAI MARINE STATION Zebua, Abdi Hikmat Petra; Nursyirwani, Nursyirwani; Feliatra, Feliatra
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Proteolytic bacteria have important role in the degradation of complex compounds to simple compound by the enzyme proteases. Sediment in mangrove ecosystem of Dumai Marine Station may contain the bacteria. This research aims to identify the proteolytic bacteria of mangrove sediments molecularly and to examine the antagonism of pathogenic bacteria. The method used in this research was survey. The results obtained 10 bacterial isolates (AZ1, AZ2, AZ3, AZ4, AZ6, AZ10, AZ11, AZ15, AZ18, and AZ20). Identification using 16S rRNA analysis revealed that 3 isolates showed different results, namely AZ2 had a similarity to Bacillus proteolyticus with strain MCCC 1A00365, AZ6 had a similarity to the bacteria B. monlinensis with strain BL4-6 and AZ20 had similarity to the bacterium B. toyonensis with strain MCCC 1A00365 BCT-7112. Three of the 10 isolates that had the highest inhibition against pathogens. Isolates AZ2 shovued inhibition zone against Pseudomonas aeruginosa with a diameter of 9.65 mm, AZ6 shovued inhibition zone against Escherichia coli bacteria with a diameter of 5.18 mm, and AZ20 shovued inhibition zone against Vibrio alginolyticus bacteria with a diameter of 4, 01 mm.
SENSITIVITY TEST OF VIBRIO sp BACTERIA ISOLATED FROM DUMAI SEA WATERS TO ANTIBIOTICS (CIPROFLOXACIN, ERYTROMYCIN AND STREPTOMYCIN) Fitri, Febi Anisa; FE, Feliatra; Yoswati, Dessy
Asian Journal of Aquatic Sciences Vol. 3 No. 2 (2020): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

The research was conducted from Feb until April 2019. The purpose of this study was to examine the resistance of Vibrio sp bacteria toward antibiotics (ciprofloxacin, streptomycin and erythromycin) isolated from Dumai sea waters. The spread of Vibrio sp bacteria has been found in sea waters, Vibrio sp bacteria have been found on the surface of faecal contaminated water and the existence of the population is related to organic waste disposal. Antibiotic susceptibility test was performed using Kirby-Bauer method. Resistance test showed that isolated V2, V9, V11, V13, V19, V23, V24 dan V28 were resistant to antibiotic ciprofloxacin, streptomycin and erythromycin with inhibitory zones ranging from 7,1 to 31,7 mm. Isolated V2 and V9 are resistant to erythromycin, isolated V11, V13, V19, V23 and V28 are resistant to streptomycin and isolated V24 is resistant to ciprofloxacin.
OSMOTIC PERFORMANCE AND GROWTH RATE OF STRIPED CATFISH (Pangasianodon hypohthalmus) AT DIFFERENT SALINITY Riswan, M; Syawal, Henni; Tang, Usman M
Asian Journal of Aquatic Sciences Vol. 5 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

The aim of this study was to analyze the effects of different salinities on osmotic performance rate, growth performance, and oxygen consumption rate Pangasianodon hypophthalmus. The method used is an experimental method by applying a completely randomized design (CRD) with four treatments, salinity 0 ppt, salinity 5 ppt, salinity 7 ppt, and salinity 9 ppt. The fish specimen used is 8 cm in length, weighing 4 g, were raised in a 54 L tank containing 40 L of water at a density of 1 fish 2 L-1 and kept for 45 days. Feed with commercial pellet 3 times a day in at satiation. The treatment with 5 ppt salinity showed the best effects, yielding an osmotic performance rate of 21,66 mOsm/I H2O, absolute weight growth of 9,63 g, the absolute length of 3.54 cm, the specific growth rate of 2,99 %, the oxygen consumption rate of 0,410 mgO2/g body weight/hour and survival rate 100 %. The water quality is at a level suitable for the growth of P. hypophthalmus. It was concluded that 5 ppt salinity can minimize the value of the osmotic performance rate, increase growth rates, minimize the level of oxygen consumption and increase.
FUEL RECOMMENDATION INFORMATION SYSTEM (BBM) CASE STUDY: MINISTRY OF MARINE, FISHERIES AND FOOD OF NAGAN RAYA REGENCY Fadhillah, Nur; Thahir, Muhammad Agam
Asian Journal of Aquatic Sciences Vol. 5 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

The Department of Maritime Affairs, Fisheries and Food (DKPP) of Nagan Raya Regency is a fully authorized body in managing all fisheries, marine and food activities in Nagan Raya Regency, Aceh Province. One important factor in supporting the productivity of capture fisheries is fuel oil (BBM) for small and medium fishermen. The fulfillment of fuel for fishermen is influenced by the length of stay at sea, the distance to the fishing ground, the size of the vessel, the type of equipment used, the vessel used and the fuel used. The fuel recommendation information system for fishermen is influential as the carrying capacity of information effectiveness between the service and fishermen. The information system itself is a group of elements that are interconnected or interact to form a single unit with an approach using quantitative methods and participatory observation. make a solution to the DKPP Nagan Raya as an effort to create a BBM Information System Application with the aim of facilitating an information system or fuel data collection, data collection of fishermen, and data collection of fishermen's catches. The BBM Information System application with a click using the fisherman's android will be greatly facilitated in the BBM recommendation process because it is in accordance with the quota received. In addition, this application method also makes it easier to monitor and report fuel distribution to fishermen, because everything can be integrated and can be monitored directly by the Marine Fisheries Service of Nagan Raya Regency.
FERTILITY ANALYSIS OF BUNGUS TELUK KABUNG WATERS BASED ON THE CONCENTRATIONS OF NITRATE, PHOSPHATE, AND THE ABUNDANCE OF PHYTOPLANKTON Lazuardi, Andika; Nedi, Syahril; Siregar, Sofyan Husein
Asian Journal of Aquatic Sciences Vol. 5 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Water fertility is the capacity or ability of waters to provide suitable nutrients for the life of phytoplankton so that it can produce optimum production. This research was conducted on June 2021 in the Waters of Bungus Teluk Kabung, Padang, West Sumatra. The purpose of this study was to determine the fertility level of Bungus Teluk Kabung waters based on the concentration of nitrate, phosphate, and the abundance of phytoplankton. The results of this study show that the fertility rate of Bungus Teluk Kabung waters based on the value of nitrate concentration, phosphate, and phytoplankton abundance in the waters of Bungus Teluk Kabung, Padang, West Sumatra, belongs to the category of waters with low fertility levels (Oligotrophic) to moderate fertility levels (Mesotrophic). The concentration of nitrate and phosphate has a weak relationship with the abundance of phytoplankton in the waters of Bungus Teluk Kabung and there isn’t any significant effect between the concentration of nitrate and phosphate with the abundance of phytoplankton in the waters of Bungus Teluk Kabung, Padang, West Sumatra.
ABUNDANCE AND DISTRIBUTION PATTERN OF THE RAMA (Thalassina anomala) IN THE MANGROVE AREA, GOGOK VILLAGE, MERANTI ISLANDS REGENCY, RIAU PROVINCE Farona, Fella; Zulkifli, Zulkifli; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 5 No. 1 (2022): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

This research was conducted in January 2021 in the Mangrove Area of Gogok Village, Meranti Islands Regency, Riau Province with the aim of knowing the abundance and distribution pattern of Thalassina anomala in the area. The method used is a survey method. Sampling used the line transect method. Sampling was carried out by drawing three transect lines, starting from the lowest low tide line along 45 m inland at each station. carried out on square plots measuring 5x5m. The parameters measured were temperature with an average value of 27.7oC, salinity with an average value of 26.7 ppt, and pH with an average value of 6,8. The results showed that the Thalassina anomala found in the mangrove area of Gogok Village, Meranti Islands Regency, Riau Province was 6.6 ind/25m2. Meanwhile, the distribution pattern of the Thalassina anomala in the area is completely random. The moths live in nests with sediments with low bulk density values, namely on fine-textured soils and granular structures with bulk density values between 0.1 - 0.9 g/cm3. Based on the analysis of organic matter content carried out in the mangrove area of Gogok Village, Meranti Islands Regency, Riau Province, it can be seen that the organic matter content is high between 42,1833 - 58,1833%.

Page 28 of 55 | Total Record : 543

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