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Nur Arifin
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arifinik013@gmail.com
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ajoas@ejournal.unri.ac.id
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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 524 Documents
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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
THE EFFECT OF PAPAYA LEAF EXTRACT (Carica papaya) AND ZEOLITE ON WATER QUALITY IN THE CULTIVATION MEDIUM FOR STRIPED CATFISH (Pangasianodon hypophthalmus) Dhearesta, Anugrah Aurora; Hasibuan, Saberina; Syafriadiman, Syafriadiman
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.8.2.148-158

Abstract

Striped catfish maintenance media often experience water quality problems. Efforts to overcome water quality problems can be made using papaya leaves (Carica papaya). Papaya leaf has benefits in maintaining water quality. In addition to papaya leaf, zeolite can be added as a water filter in the maintenance media. One of the water quality parameters that must be maintained is the physical parameters, namely temperature, turbidity, DHL, TDS, and TSS. This research was conducted from April 2024 to February 2025. This study aimed to determine the effect and best dosage of papaya leaf and zeolite solutions on water quality in striped catfish seed cultivation media. The method used in this study was the experimental method and Completely Randomized Design (CRD), which used four treatment levels with three replications. The treatments given were without papaya leaf solution and zeolite (P0), papaya leaf solution 4 mL/L and zeolite 17.05 g/L (P1), 5 mL/L and zeolite 17.05 g/L (P2), 6 mL/L and zeolite 17.05 g/L (P3). The striped catfish used was 5.9-6.6 cm in size, with a stocking density of 60 fish/tank. Fish maintenance was carried out for 30 days, with feeding conducted at satiation levels, and the feeding frequency was 3 times a day, namely 08:00 WIB, 13:00 WIB, and 16:00 WIB. The administration of 6 ml/L papaya leaf solution resulted in temperature (25.63±0.05b), turbidity (1.83±0.01a), electrical conductivity (83.66±0.57a), TDS (63.66±0.57a) and TSS (28.00±1.00a) and absolute weight of 2.92±0.313c g/fish, absolute length of 3.56±0.472b cm/fish and LPS value of 1.72±0.122c g/day. Papaya leaf solution and zeolite filter significantly affected water quality.
CORAL REEF COVER CONDITION AND ABUNDANCE OF REEF FISH OF THE POMACENTRIDAE FAMILY IN THE WATERS OF PAGANG ISLAND, PESISIR SELATAN REGENCY, WEST SUMATRA Hidayat, Aga Azmi; Zulkifli, Zulkifli; Thamrin, Thamrin
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.8.2.268-276

Abstract

Coral reefs play a crucial role in maintaining marine biodiversity by providing habitat and resources for various aquatic organisms, including reef fish from the Pomacentridae family. This study aims to determine the condition of coral reef cover, the abundance of reef fish from the Pomacentridae family, and the relationship between coral reef cover and the abundance of reef fish from the Pomacentridae family in the waters of Pagang Island. The study used the Underwater Photo Transect (UPT) method for coral cover analysis and the Underwater Visual Census (UVC) method for fish abundance data collection. The results showed that the average percentage value of coral reef cover at a depth of 5 m was 22.18%, and at a depth of 7 m was 12.80%, indicating a poor category for the percentage value of coral reef cover. Data collection was carried out at three different stations. The highest percentage of coral reef cover was found at station III at a depth of 5 m at 46.74% and at a depth of 6 m at 28.81%, while the lowest value was at station I at a depth of 5 m at 11.67% and at a depth of 7 m at 2.41%. The abundance of Pomacentridae reef fish varies between stations, with the highest abundance observed in areas with higher coral cover. Regression analysis showed a positive correlation between coral reef cover and fish abundance, indicating that declining coral reef conditions can have a negative impact on fish populations. These findings highlight the importance of coral reef conservation efforts to maintain marine biodiversity and ecosystem balance
IDENTIFICATION AND POTENTIAL PARASITES IN NILE TILAPIA (Oreochromis niloticus) CULTURED IN DOLO SUBDISTRICT, SIGI DISTRICT Manurung, Usy Nora; Wijanarko, Wijanarko; Mauru, Serli; Manurung, Melani; Permana, I Nyoman Adi
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/

Abstract

Tilapia (Oreochromis niloticus) is a freshwater aquaculture fish in Dolo District, Sigi Regency. This study aimed to determine the type and prevalence of parasites on tilapia. This research was conducted from June to August 2024. Fish samples were taken in 5 villages: Kota Pulu, Kota Rindau, Potoya, Tulo, and Maku, with each village location taking as many as 10 fish, then parasite examination was carried out at the Central Sulawesi Animal, Fish, and Plant Quarantine Center Laboratory. The method used was smear preparation (smear method) with the target organs being the skin (body mucus) and gills. The total number of samples examined was 50 fish with a length of 10.5-12.8 cm and a weight of 30-43g. The results of parasite identification found nine types of ectoparasites that infect Tilapia, namely Trichodina sp, Dactylogyrus sp, Uronema sp, Oodinium sp, Gyrodactylus sp, Chilodonela sp, Vorticella sp, Chlorosoma sp, Apiosoma sp, and Chichlidogyrus sp. The highest prevalence in Tilapia was in Dactylogyrus sp parasites at 70%, Trichodina sp at 28%, and Gyrodactylus sp at 2%.
HEMATOLOGY OF STRIPED CATFISH (Pangasianodon hypophthalmus) FED WITH ADDED FERMENTED HERBAL MEDICINE AND TESTED WITH Aeromonas hydrophila Rizvi, Fharisa Nabila; Syawal, Henni; Riauwaty, Morina
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.8.2.240-251

Abstract

Fermented herbs made from turmeric, ginger, and kencur have the potential to be antimicrobials and immunostimulants that can increase appetite and reduce fish stress due to changes in water quality. The research was conducted from June 2024 to August 2024 at the Fish Disease and Parasite Laboratory, Faculty of Fisheries and Marine, Universitas Riau. This study aims to determine the best frequency of fermented herbs enriched on the health of striped catfish (Pangasianodon hypophthalmus) hematology after challenge with Aeromonas hydrophila. The research method used a completely randomized design (CRD) with one factor, five treatments, and three replicates. Treatments consisted of Kn (negative control, no challenge test), Kp (positive control and challenge test), P1 (herbs enriched every day and challenge test), P2 (giving every 3 days and test challenge), and P3 (giving every 5 days and a test challenge). Fish were kept for 46 days and challenged with A. hydrophila (10⁸ CFU/mL) on day 32. Clinical symptoms were observed for 14 days post-challenge. The best results were obtained in treatment P1 with the following hematological parameters: erythrocytes 2.37×10⁶ cells/mm³, hematocrit 36.00%, hemoglobin 9.60 g/dL, leukocytes 11.14×10⁴ cells/mm³, glucose 69.33 mg/dL, and normal leukocyte differentiation. The survival rate reached 100%. Feeding fermented herbs effectively improved the health and body endurance of striped catfish
MANAGING CANNIBALISM AND IMPROVING LARVAL SURVIVAL IN BARRAMUNDI HATCHERY Lesmana, Indra; Effendi, Irwan; Suharman, Indra; Putra, Iskandar; Ruthmawati, Abigael; Andesca, Yofi Devara
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.8.2.203-213

Abstract

Barramundi (Lates calcarifer) are economically valuable and usually cultivated in tropical marine hatcheries. Their fertilization and hatching rates are generally high, but poor survivorship of larvae due to cannibalism and cohort mismanagement remains a problem. In this study, we sought to address field-based techniques for controlling cannibalism and augmenting larval survival in large-scale hatcheries at Balai Besar Perikanan Budidaya Laut (BBPBL), Lampung, Indonesia. A 30-day rearing cycle was completed through descriptive observation methods focused on reproduction, and growth monitoring was performed concerning feeder grade improvement. The recorded data indicated a fertilization rate of 86% alongside an impressive hatching rate of 96%. However, the survival rate dropped to 52%, primarily due to cannibalism. Considerable size disparity among cohorts, lack of grading during asynchronous growth periods, and stunted development seem to drive cannibalism under these conditions. Increasing the frequency or decreasing the size gap between assessments has proven effective in enhancing survival levels alongside better feeding synchronization, water quality management, and reduced particulate matter concentration in water tanks. These outcomes will assist tropical aquaculture systems with long-term sustainable frameworks while providing actionable insight to hatchery managers without further testing
UTILIZATION OF MANTIS SHRIMP RESOURCES (Harpiosquilla raphidea) IN LABUHANBATU WATERS, NORTH SUMATRA PROVINCE Siregar, Irham Huspa Khasahatan
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.8.277-284

Abstract

Mantis shrimp (Harpiosquilla raphidea) can be found in the waters of Labuhanbatu, North Sumatra Province. The significant economic value and fishing effort of this shrimp species are believed to affect the decline in population numbers in the Labuhanbatu aquatic ecosystem, which has the potential to threaten the sustainability of its natural habitat. This study aimed to analyze the resource utilization of mantis shrimp in Labuhanbatu waters. The research methodology used was secondary data analysis. The research was conducted from November 2024 to April 2025, specifically in the waters of Labuhanbatu, North Sumatra Province. The dataset analyzed includes time series data from 2017 to 2024, including information on mantis shrimp catches and the number of fishing trips obtained from the Labuhanbatu Regency Marine and Fisheries Service. Data analysis was carried out using the Gordon-Schaefer bioeconomic model, along with calculations of utilization rates and effort rates. The results of the resource utilization analysis showed that mantis shrimp in Labuhanbatu have been overexploited. In catch rate optimization and cost reduction, scenarios that produce maximum economic yield (MEY) show higher profitability than scenarios based on maximum sustainable yield (MSY). This highlights the unsustainability of open-access mantis shrimp fishing practices in Labuhanbatu waters and the potential for mantis shrimp resource depletion. Furthermore, the utilization rate estimated at 93% indicates overexploitation, where the exploitation rate exceeds the MSY threshold. In addition, the effort rate reached 91%, indicating that the production capacity is almost at the maximum limit.

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