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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 20 Documents
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Search results for , issue "Vol. 8 No. 2 (2025): August" : 20 Documents clear
YASHIL GOL’S ECO-TOURISM POTENTIAL: STUDY CASE Mammadova, Ulviyya
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.138-147

Abstract

The richest eco-tourism potential and real ecosystem of Yashil Gol were studied using remote sensing methods in aerospace sources. Based on these materials, the eco-geographical factors of the lake were revealed using OpenStreetMap and Google Earth. The lake territory comprises 2,551 m² (0.26 ha), and the total perimeter of the lake circle is 202.4 m. The lake’s absolute height is about 909 m above sea level, and the relative height is 1.37 km. The lake shape resembles an oval leaf from space. Consequently, the map length is 76.60 m, but the ground length is approximately 76.96 m, with a heading of 193.43° on the Google Earth map. The lake’s map width is 63.37 m, but the ground width reaches 63.39 m, with a heading of 90.59 ° on the Google Earth map. Yashil Gol is located at 40°45'35"N latitude and 48°32'19"E longitude. The eco-tourism reserves of Yashil Gol haven't been studied by researchers today. Correspondingly, the climate conditions of the lake territory were investigated, and the data are presented in the paper. According to Landsat and other aerospace materials, as well as visits to the lake throughout the four seasons, monitoring deals with climate, forest, and visitor impacts. The woodland cover square around the lake was defined as about 0.88 ha within a 678 m perimeter. There is only one small café on the lakeshore. None of the cottages, hotels, or hostels are located here. Orthofauna members are observed in Autumn as wild birds migrate to warmer areas. The birds are mainly included in the «Green Book» and «Red Book» of the Republic. To investigate the entire ecosystem of Yashil Gol, researchers from various scientific fields must study it.
EFFECTS OF Bacillus sp PROBIOTICS ON GROWTH AND SURVIVAL OF Carassius auratus IN URBAN FISH FARMING Syakir, Muhammad Sabiq; Mulyani, Yuniar; Rostika, Rita; Haetami, Kiki; Davinci, Leonardo; Karsih, Okta Rizal
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.214-222

Abstract

This study aims to determine the optimum density of Bacillus sp. bacteria applied to feed to increase the growth of C. auratus maintained in a fish farming system in an 80 L bucket. As a form of urban farming, this research was conducted in the yard of Building 1 of the Faculty of Fisheries and Marine Sciences, UNPAD. This study used an experimental method with a Completely Randomized Design model consisting of 4 treatments and three replications, namely treatment A (control), treatment B (Bacillus sp 106 CFU/mL), treatment C (Bacillus sp. 108 CFU/mL), and treatment D (Bacillus sp 1010 CFU/mL). Observations were made for 60 days. Observation parameters were weight growth, length growth, specific growth rate, feed efficiency, survival, and water quality. The results of this study indicate that treatment C (Bacillus sp 108 CFU/mL) was the most effective in increasing the growth of C. auratus, as seen from the absolute weight growth of 61.20 g, absolute length growth of 1.30 cm, specific growth rate of 0.77%/day, feed efficiency of 38%, and fish survival rate of 96% which were significantly different compared to the others.
CONSUMPTION OF NATURAL FEED RICH IN CALCIUM AND PHOSPHORUS ON GROWTH, INTESTINAL CONDITION, AND HEPATOPANCREAS OF SAND LOBSTER (Panulirus homarus) IN PANGANDARAN REGENCY Rostika, Rita; Haetami, Kiki; Andikawati, Aulia; Putra, Pringgo Kusuma Dwi Noor Yadi; Utama, Mochhamad Ikhsan Cahya; Wijayanti, Lady Ayu Sri; Maulida, Yulvina; Triyani, Dina Amalia
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.230-239

Abstract

This study aims to investigate the stimulatory effects of natural feed with calcium and phosphorus supplementation on growth and survival via physiological poses of hepatopancreas and intestine in sand lobster (Panulirus homarus). A trial was done with three types of natural feed of shell rich in calcium and phosphorus for lobsters weighing 80 g (initial weight), and that contained different mineral values: shrimp (Acetes), with calcium/phosphorus content (mg/mg) of 757/292, anchovy (Stolephorus sp) with 500/500, and golden apple snail (Pomacea canaliculata) with 129/60. This study was conducted from October 2023 to December 2023 at the KJA of the Faculty of Fisheries and Marine Science, Universitas Padjadjaran, located on the East Coast of Pangandaran Regency. The parameters measured were survival, growth, histological health of the hepatopancreas and the intestine of the sand lobsters, and water quality. The results showed the highest survival of lobsters in the treatment fed by shrimp at 96%, and the highest specific growth rate of lobsters was found in the anchovy diet at 1.90 0.5117%. Intestinal villus area of lobster was 1857.667 µm2; besides this, the histology of Hepato pancreas and intestine has been described descriptively. Water quality parameters in the research site varied as depth-visibility was from 3.1 m, temperatures of 27 to 29°C, dissolved oxygen was 6.4 to 8.8 mg/L, pH range was 7 to 8, and the salinity range was 34 to 35 ppt
APPLICATION OF BIOFLOC TECHNOLOGY IN REARING RED TILAPIA (Oreochromis niloticus) AT DIFFERENT STOCKING DENSITIES IN BRACKISH WATER Ningsih, Kurnia; Putra, Iskandar; Pamukas, Niken Ayu
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.177-185

Abstract

Red tilapia is a fish with a relatively wide tolerance to salinity (euryhaline) changes, making it possible to cultivate red tilapia in brackish waters. Additionally, intensive farming environments can support increased stocking density. The application of biofloc technology can help address this issue. Biofloc technology is an alternative approach to addressing water quality issues in water bodies, adapted from conventional domestic wastewater treatment techniques, and can also serve as a source of natural food. This research aimed to determine the best stocking density of red tilapia reared in brackish water using biofloc technology. The method used in this research is the experimental method of Completely Randomized Design (CRD) with one factor, five levels of treatment, and three replicates. The treatments applied were 20 fish/80 L (P1), 30 fish/80 L (P2), 40 fish/80 L (P3), 50 fish/80 L (P4) and 60 fish/80 L (P5). The red tilapia used as test fish were 3-5 cm in size and adapted to 17 ppt salinity. Feed with commercial pellets 3 times a day in sufficient amounts. This research was conducted for 50 days. The results showed the best stocking density was obtained in P4 (50 fish/80 L) which produced absolute weight of 8,87 ± 0,12 g, absolute length of 3,57 ± 0,07 cm, specific growth rate of 3,55 ± 0,12%, feed conversion ratio of 0,83 ± 0,06 kg, feed efficiency of 120,32 ± 7,81%, survival rate of 86 ± 4% and blood glucose level of 71 ± 5,13 mg/dL.
POPULATION STRUCTURE OF LOKAN (Polymesoda expansa) IN THE REHABILITATION MANGROVE ECOSYSTEM OF ANAK SETATAH VILLAGE, MERANTI ISLANDS REGENCY Fitri, Sri Sumarni; Zulkifli, Zulkifli; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.167-176

Abstract

Polymesoda expanse belongs to the class of Bivalves found in mangrove forests; their habitat is between mangrove roots on muddy substrates, sandy mud and mangrove litter. This study aims to determine the abundance of P. expansa in Anak Setatah Village, Kepulauan Meranti Regency, examine the size-frequency distribution, and investigate the distribution pattern in the area. The study was conducted in October 2024 by using a survey method. The sites were located in the coastal waters of Anak Setatah Village. Station I is near residential areas, Station II is near fishing ports, and Station III is near agricultural areas. A one-way ANOVA was used to analyse differences in abundance between stations and zones. The results revealed significant differences in abundance, with Station II (near fishing ports) exhibiting the highest abundance and Station I (near residential areas) showing the lowest. The middle zone had the highest abundance among the zones. Furthermore, based on the results of the ANOVA test (p< 0.05), there is a significant difference in abundance between stations. The LSD test revealed a substantial difference in abundance between stations I and II, and stations I and III. However, no significant difference was found from the ANOVA test, with a p-value of 0.125 > 0.05, indicating that there was no significant difference in abundance between zones. The size frequency of P. expansa ranged from 17.6-64.8 mm, and the distribution pattern was clustered
RESPONSE IMMUNITY OF GOLDFISH (Carassius auratus) INFECTED WITH Aeromonas hydrophila BACTERIA AND POST-TREATMENT WITH PROPOLIS SOLUTION Riswan, M; Lukistyowati, Iesje; Syawal, Henni; Kurniawan, Ronal; Putri, Rianti; Putri, Mega Novia
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.223-229

Abstract

This study aims to determine the immunity response of  Carassius auratus infected with Aeromonas hydrophila bacteria and post-treatment with propolis solution by measuring total leukocytes and phagocytosis index. The method used is experimental by applying a completely randomized design (CRD) with five treatments and three replications. The treatments were Kn (not infected with A. hydrophila and not treated with propolis), Kp (infected with A. hydrophila but not treated with propolis), while fish infected with A. hydrophila were treated with propolis doses P1 (700 ppm), P2 (800 ppm), and P3 (900 ppm). Treatment was done by injecting 0.1 ml of propolis into fish infected with A. hydrophila intramuscularly. The test material was 150 fish of 8-10 cm in size. The results showed that propolis significantly gave an immune response to the C. auratus infected with A. hydrophila (p<0.05). The 800 ppm propolis dose was the most effective, as indicated by a total leukocyte count of 3.70×104 cells/mm3, a phagocytosis index value of 28.33%, and a survival rate of 83.33%. This study highlights that propolis has potential as a natural immunostimulatory agent in enhancing non-specific defense mechanisms in C. auratus infected with pathogenic bacteria
POPULATION STRUCTURE AND HABITAT CHARACTERISTICS OF CLAM (Meretrix meretrix) IN THE INTERTIDAL ZONE OF TELUK LANCAR VILLAGE, BENGKALIS REGENCY Ardiana, Eka; Zulkifli, Zulkifli; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.159-166

Abstract

Clam (Meretrix meretrix) is an economically and ecologically significant bivalve mollusk. This study aimed to determine the population structure and habitat characteristics of M. meretrix in the intertidal zone of Teluk Lancar Village, Bengkalis Regency. The research employed a survey method from November 2024 to February 2025, focusing on one station divided into three subzones (Upper, Middle, Lower). Results revealed that the sediment substrate was predominantly sandy mud with organic matter content ranging from 0.5% (middle zone) to 2% (upper zone). The highest abundance of M. meretrix was found in the middle subzone (3.1 ind/m²), while the lowest was in the upper subzone (2.0 ind/m²). No significant differences in abundance were observed between stations or intertidal subzones. Size distribution analysis revealed that the 2.68-3.17 cm class was the most common (15 individuals), while the 1.18-1.67 cm and 4.16-4.67 cm classes were the least represented (1 individual each). The distribution pattern of M. meretrix was uniform (Id < 1).
ISOLATION AND IDENTIFICATION OF MICROPLASTIC DEGRADING BACTERIA IN THE APHOTIC ZONE IN BAGANSIAPIAPI WATERS, RIAU Bachar, Sutan; Feliatra, Feliatra; Nursyirwani, Nursyirwani
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.193-202

Abstract

This study aims to isolate and identify microplastic-degrading bacteria from the aphotic zone in Bagansiapiapi waters, Riau Province. Seawater samples were taken from three different stations, namely the port area, the fisheries area, and the Rokan River estuary. Water quality parameters such as temperature, salinity, pH, current speed, brightness, and dissolved oxygen were measured to support environmental analysis. The method used in this study was a survey method, and the sampling location was around the Bagansiapiapi waters, Riau Province. A total of 9 samples were then taken to the laboratory for isolation and identification of microplastic-degrading bacteria. Bacterial isolation was carried out using Zobell Marine Agar media, morphological characterization and biochemical tests. The isolation results obtained 11 bacterial isolates with different morphological characteristics. The microplastic degradation test showed that three isolates, namely ISL1, ISL3, and ISL9, could degrade microplastics, with ISL1 showing a degradation percentage of 9.45%. Molecular analysis using 16S rRNA and BLAST techniques showed that the ISL1 isolate had a similarity of 99.93% with Stutzerimonas stutzeri. These results indicate the potential of native bacteria from the aphotic zone to be used in bioremediation efforts for microplastic pollution in waters
EFFECT OF Curcuma xanthorrhiza ENRICHED FERMENTED PASTE FEED ON GROWTH PERFORMANCE AND SURVIVAL OF GIANT GOURAMI (Osphronemus goramy) LARVAE Rambe, Syahdila Anjani Ramadina; Asiah, Nur; Aryani, Netti
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.186-192

Abstract

The growth of gourami (Osphronemus goramy) larvae is often hampered by the limited availability of natural food such as tubifex worms. The use of fermented paste feed enriched with Curcuma xanthorrhiza Roxb is expected to be an effective alternative. The research was conducted from June to August 2024 at the Fish Hatchery and Breeding Laboratory of Universitas Riau. This study aims to evaluate the effect of fermented paste feed enriched with C.xanthorrhiza on the growth performance and survival of O. goramy. A 40-day experiment was conducted using a completely randomised design (CRD) with five treatments: P1 (Tubifex/control), P2 (0 g/kg), P3 (6 g/kg), P4 (9 g/kg), and P5 (12 g/kg) temulawak. Growth, survival, feed response, and water quality were analyzed. The results showed that P3 significantly improved growth and survival compared to the other paste treatments, with weight gain (0.31 g), length gain (2.11 cm), specific growth rate (7.86%/day), and survival (76%). The best feed response was observed in P1 and followed by P3. Higher doses (P4 and P5) had a negative impact on performance. Fermented paste feed enriched with 6 g/kg C.xanthorrhiza showed potential as a partial alternative to Tubifex in rearing gourami larvae
ISOLATION AND IDENTIFICATION OF DEGRADING BACTERIA MICROPLASTICS ON THE SURFACE WATER IN BAGANSIAPIAPI WATERS, RIAU PROVINCE Wulandari, Aprilia; Nursyirwani, Nursyirwani; Feliatra, Feliatra
Asian Journal of Aquatic Sciences Vol. 8 No. 2 (2025): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.2.258-267

Abstract

Microplastic pollution in the marine environment seriously threatens aquatic ecosystems, including in the coastal areas of Bagansiapiapi, Riau Province. This study aims to isolate and identify microplastic-degrading bacteria from the sea surface and test their degradation ability. Sampling was carried out at three different locations in the Bagansiapiapi waters, and then isolation, morphological identification, and biochemical tests were carried out at the Marine Microbiology Laboratory, Universitas Riau. Microplastic degradation tests using LDPE plastic were carried out for 30 days, and molecular identification was carried out using the 16S rRNA PCR method. The results showed significant differences in the number of bacteria between stations. Station I (port area) showed the highest bacterial density of 31.8 × 10⁴ CFU/ml. Six of the 14 bacterial isolates obtained showed the ability to degrade microplastics, with ISL 14 (Bacillus sp.) showing the highest degradation percentage of 30.38%. This finding shows the potential for utilizing local bacteria as bioremediation agents for microplastics in the marine environment effectively and environmentally friendly

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