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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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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).
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Articles 524 Documents
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WATER QUALITY IMPROVEMENT AND ANALYSIS FOR CLOWN FISH (Amphiprion ocellaris) CULTIVATION IN A RECIRCULATION SYSTEM Santikawati, Susi; Syafriadiman, Syafriadiman; Syawal, Henni
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): 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 demand for ornamental fish is currently increasing while the availability in nature is decreasing due to overfishing. Clownfish (Amphiprion ocellaris) is a type of marine ornamental fish that is widely kept in aquariums, but the problem is the rapid decline in water quality due to the activity of these fish. The recirculation system is one way that can be used in water quality management. The study aimed to analyze the type of filter used to stabilize seawater quality in clownfish (rearing containers. This research was conducted from January to April 2021 at the Research Centre of Sibolga Fisheries College. The method used was an experimental method using a one-factor Completely Randomized Design (CRD) with four treatment levels and three replications. The treatments in this study were P0 (unfiltered), P1 (cotton filter), P2 (fiber filter), and P3 (activated charcoal filter). The fish used was 2 – 3 cm in size, kept in an aquarium measuring 60x40x40cm with a stocking density of 2 fish/L of water and fed tubifex 2 times a day, at 08.00 and 18.00 WIB as much as 5% of their body weight. Parameters measured were temperature, pH, DO, salinity, ammonia, and phosphate, abundance of bacteria, phytoplankton, and survival of clownfish. Water quality measurements are carried out every 7 days. The results obtained from the improvement and analysis of water quality for the cultivation of clownfish in the recirculation system provides an influence on water quality in the rearing container. The results obtained were temperature 27.9–28.0 0C, pH 8.3–8.4, DO 7.5–8.0 mg/L, salinity 33-34 ppt, ammonia 0.04–0.06 mg/L, phosphate 0.47–0.48 mg/L and bacterial abundance 2.35x104 CFU/mL with a survival rate of 95.55%.
THE RELATIONSHIP OF PRIMARY PRODUCTIVITY OF PHYTOPLANKTON WITH OCEANOGRAPHIC PARAMETERS IN THE WATERS OF LUBUK GAUNG SUB-DISTRICT, SUNGAI SENIN DISTRICT, DUMAI Sari, Tri Widia; Herlina, Nofripa; Badrun, Yeeri
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): 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 waters of Lubuk Gaung Village, Sungai Sembilan District are areas that are widely used as transportation routes. Activities in these waters will cause environmental pollution, which affects the life of phytoplankton. The purpose of this study was to determine the relationship between the primary productivity of phytoplankton with oceanographic parameters in the waters of Lubuk Gaung Village, Sungai Sembilan District, Dumai. The method used is the survey method to determine the research station and the in situ method for measurement and sampling of oceanographic parameters. The results obtained are Oceanographic parameters from the three research stations, namely Brightness = 30 – 49 cm, Turbidity = 47.4 – 58.4 FTU, TSS = 124 – 209 mg/L, and BOD = 0.408 – 1.224 mg/L. The average value of primary productivity of the waters ranged from 48.07 to 79.69 mgC/m3/day. The value of primary productivity at station II is categorized into Oligotrophic, namely low waters. Stations I and III are categorized into mesotrophic waters, namely medium waters. The relationship between brightness, turbidity, and TSS with primary productivity has a very strong and positive (unidirectional) correlation value. The relationship between BOD and primary productivity has a very strong and negative (opposite) correlation.
ESTIMATION OF THE STOCK OF INDIAN SCAD FISH (Decapterus russeli) LANDED AT THE SIBOLGA ARCHIPELAGO FISHERY PORT, NORTH SUMATRA Nababan, Sri Megawati; Akmal, Akmal; Wiyanto, Eko
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Indian Scad Fish (Decapterus russeli) are the most dominant small pelagic fish resources landed in the Sibolga Archipelago Fisheries Port. The production of Indian Scad Fish catches that are landed in PPN Sibolga on average fluctuates every year. Therefore, it is necessary to analyze the catch of Indian Scad Fish to control the level of exploitation and create effective fishing operations so that the utilization of Indian scad fish resources can run optimally and sustainably. This study aims to determine the percentage level of utilization of Indian scad fish (Depterrus russeli) that landed at the Sibolga Nusantara Fisheries Port, North Sumatra. This research was conducted in March – April 2022. The method used in this research is the survey method. The type of data collected is secondary data. The data analysis used includes standardization of Indian scad fish fishing gear, sustainable potential and optimum effort, total allowable catch (TAC), utilization rate, and effort. From the research results, it was found that the highest production of Indian scad fish catches in 2019 was 6,392 tons. Based on the calculation of MSY and the optimum effort in 2017-2021 of 5,934.97 tons/year, meaning that the maximum catch of Indian scad fish that can be caught is 5,934.97 tons/year and the number of allowable catches is 4,747.98 tons/year or 80% of the maximum catch and utilization rate of Indian scad fish for 5 years is 81.41%.
ORGANOLEPTIC ANALYSIS OF EGG WHITE SUBSTITUTION ON ANCIFISH NUGGET (Stolephorus sp) Kaliky, Nurainy
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

Nugget is one of the processed products from fish meat, whether fish is economically important or not. Nuggets are very popular with various circles of society because of their savory and delicious taste. Nuggets are made from fish meat and are believed to have a composition of nutritional value that is needed by the human body. This study aims to see the effect of adding egg whites to the organoleptic test of the nuggets produced and to see the level of preference of the panelists on the refined anchovy nuggets produced. The usefulness of this research is the diversification of processed fishery products that can be consumed by the community and has important economic value and it is hoped that the research results will be useful for the community about new sources of information regarding egg white substitution can produce anchovy nuggets (Stolephorus, sp) with good organoleptic tests. The method used is an experimental method. In this study, there were 2 treatments, namely there were two treatments A (egg white concentration) namely A1 = 50 g egg white, A2 = 100 g egg white A3 = 150 g egg white and treatment B ( heating temperature) namely B1 = 40 0C 15 minutes, B2 = 65 0C 20 minutes, B3 = 95 0C 30 minutes. In this study, subjective observations were made including color, texture, folding, and taste tests carried out by 15 panelists. The results showed that the administration of egg whites and heating at a temperature of 650C produced a good gel nugget color, due to a change in the color pigment. Egg whites can inhibit the softening of the gel because when heated, the value of the texture of the nugget becomes better. Meanwhile, the folding test value obtained was very high, namely 3.754, due to the fact that egg white inhibits serine proteinase so that the gelling strength increases.
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.
ANALYZING THE RELATIONSHIP BETWEEN THE IOD (INDIAN OCEAN DIPOLE) AND ENSO (EL NIÑO–SOUTHERN OSCILLATION) ON SEA SURFACE TEMPERATURE AND RAINFALL VARIABILITY IN THE WATERS OF WEST SUMATERA Maatitawaer, Natasya Debora C; Rifardi, Rifardi; Ilahi, Ilham; Mubarak, Mubarak; Tanjung, Afrizal; Basiluddin, Fadhlan
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.72-78

Abstract

This research examines the influence of the Indian Ocean Dipole (IOD) and El Niño–Southern Oscillation (ENSO) on sea surface temperature (SST) and rainfall variability in the coastal waters of West Sumatra over the period 2014–2024. The analysis draws on the Dipole Mode Index (DMI), Niño 3.4 index, SST, and rainfall data, processed using MathWorks and Excel. Regression analysis between field and satellite-derived SST data showed a strong correlation (R² = 0.936), confirming the reliability of satellite data for this study. Findings reveal that positive IOD and El Niño events are generally associated with cooler SSTs and reduced rainfall. In contrast, negative IOD and La Niña phases correspond to warmer SSTs and increased rainfall. The IOD appears to exert a more pronounced influence on SST variability than ENSO. Notably, the combined occurrence of a positive IOD and El Niño amplifies the decline in SST and rainfall. At the same time, the combination of a negative IOD and La Niña enhances increases in these variables. These results highlight the significant role of large-scale climate mode in shaping regional oceanographic and atmospheric conditions in the West Sumatra region.
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.
TYPES AND ABUNDANCE OF PHYTOPLANKTON AT DIFFERENT DEPTHS IN THE COASTAL WATERS OF TELUK MAKMUR VILLAGE, DUMAI CITY, RIAU Shandy, Jacinda Qoidatun; Nasution, Syafruddin; Nurrachmi, Irvina
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.79-85

Abstract

This study aims to identify the types and abundance of phytoplankton at different depths and research stations in the coastal waters of Teluk Makmur Village, Dumai City, Riau Province. Samples were taken from three different locations, namely estuary areas, tourist areas, and areas far from settlements. The number of phytoplankton samples from the three stations at three depths was 27 samples. Water quality parameters such as temperature, salinity, pH, DO, TSS, nitrate and phosphate were measured to determine the condition of the aquatic environment and the effect on phytoplankton growth. Phytoplankton were analyzed using a microscope and identified using a phytoplankton identification book. The results showed that 27 species of marine phytoplankton were found in the Bacillariophyceae, Dinophyceae, Cryptophyceae, and Conjugatophyceae classes. The most common phytoplankton found came from the Bacillariophyceae class. The highest abundance of phytoplankton between depths was obtained from a depth of 3 m, namely 368,558.0441 ind/L, while the highest abundance of phytoplankton between stations was obtained from station III, namely 360,000.452 ind/L. The abundance of phytoplankton between depths and between stations showed no significant difference (p>0.05).
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%.

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