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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
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.
EDIBLE FILM CHARACTERISTICS WITH CARRAGEENAN (Eucheuma cottonii) FLOUR EXTRACTED WITH DIFFERENT BASE SOLVENTS Sirait, Putriana Sari; Diharmi, Andarini; Azmi, Heriza
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.8.2.285-290

Abstract

Edible film is a primary packaging in the form of a thin layer and functions as a coating for food ingredients, which can be made from hydrocolloid compounds. Carrageenan polysaccharide is one of the hydrocolloids used to make edible films because it produces strong gel properties. Eucheuma cottonii is a seaweed that produces relatively high levels of kappa carrageenan, namely around 50%. This research aims to determine the physical and mechanical characteristics of edible film with carrageenan flour from E. cottonii extracted with different base solvents. The research method was carried out experimentally with an experimental design, namely a non-factorial Completely Randomized Design (CRD) with three levels of treatment, namely differences in carrageenan flour extracted with KOH, NaOH and Ca(OH)2 solvents. The parameters of this research are physical and mechanical analysis of edible film including testing tensile strength, thickness, percent elongation, and water vapor transmission rate. The research results showed that the best results were in the treatment of carrageenan flour extracted with KOH solvent, where the physical and mechanical analysis of the edible film showed a tensile strength value of 9.49±0.50 MPa, a thickness of 0.03±0.003 mm, a water vapor transmission rate of 30.13±0.41 g/m2/day, and a percent elongation 9.86±0.41%.
MAXIMUM SUSTAINABLE YIELD (MSY) ESTIMATION AND CATCH POTENTIAL OF JINGA SHRIMP (Metapenaeus monoceros) IN WEST TANJUNG JABUNG WATERS, JAMBI PROVINCE Yunita, Lauura Hermala; Saputri, Diah Maulani; Wulanda, Yoppie; Hariski, M; Wulandari, Wulandari; Hasanah, Hasanah
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.8.2.291-299

Abstract

One of the key commodities in the capture fisheries sector is the Jinga Shrimp (Metapenaeus monoceros), which is widely distributed in tropical waters, including the coastal area of Tanjung Jabung Barat, Jambi Province. This study aims to estimate the Maximum Sustainable Yield (MSY) and the fishing potential of Jinga Shrimp in the waters of Tanjung Jabung Barat. The data used are secondary data on annual catch and fishing effort from 2017 to 2023, obtained from the local Fisheries Office. The analysis was conducted using the Schaefer model approach, which includes calculations of Catch per Unit Effort (CPUE), MSY, optimum effort (EMSY), Allowable Catch, utilization rate, and exploitation rate. The results showed an MSY value of 2,189.60 tons/year and an EMSY of 68.19 trips/year. As the safe harvest limit, the allowable catch was set at 1,751.68 tons/year (80% of MSY). The average utilization rate was 88%, indicating that the resource has not yet experienced overfishing. However, the exploitation rate has exceeded the optimum limit (124%) and is considered overfishing. The negative relationship between CPUE and effort (R² = 96.72%) indicates a decline in stock due to high fishing intensity. Therefore, adaptive and stock-based management policies are necessary to ensure this region's sustainable conservation of Jinga Shrimp populations.
HYBRIDISATION OF FEMALE KOI (Cyprinus rubrofuscus) AND MALE KAPIAT (Barbonymus schwanenfeldii) WITH ARTIFICIAL SPAWNING IN KAMPAR DISTRICT, RIAU Nasita, Abian Surya; Rostika, Rita; Priowirjanto, Gatot Hari; Zidni, Irfan; Davinci, Leonardo; Kurniawan, Ronal; 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.8.2.300-309

Abstract

This study aims to evaluate the potential for hybridisation between female koi (Cyprinus rubrofuscus) and male kapiat (Barbonymus schwanenfeldii) through artificial spawning. The study was conducted at Kampar Ornamental Fish, Kampar District, Riau Province. The method used was a Completely Randomized Design (CRD) with two treatments: P1 (koi × koi) as the control, and P2 (koi × kapiat) as the hybrid treatment, each with three replicates. The parameters observed included fecundity, fertilisation rate (FR), hatching rate (HR), absolute length growth, and survival rate (SR). The results showed that hybridisation produced promising performance in terms of FR (21.99%), HR (55.02%), and SR (41.6%). In conclusion, hybridisation between koi and kapiat fish has the potential to produce superior varieties, although attention must be paid to environmental factors such as temperature and pH
CONTROLLING CANNIBALISM OF ASIAN REDTAIL CATFISH (Hemibagrus nemurus) LARVAE USING PASTE FEED SUPPLEMENTED WITH TURMERIC FLOUR Yulindra, Ade; Benny Heltonika; Netti Aryani
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.8.2.310-318

Abstract

Cannibalism is a significant issue during the early stages of Asian redtail catfish (Hemibagrus nemurus) culture, as it negatively affects survival rates. This study aimed to investigate of turmeric (Curcuma longa) flour supplementation in pasta feed to control cannibalism in Asian redtail catfish larvae and the potential to replace silk worm as a feed. A completely randomized design (CRD) was employed, consisting of five treatment groups with four replications each. The larvae were fed pasta diets supplemented with varying doses of turmeric flour (0, 5, 10, and 15 mg/kg), along with a comparative feed using Tubifex sp. The parameters assessed included cannibalism rate, survival rate, and growth performance. The results showed that the highest survival rate (93.33 ± 1.33%) and lowest cannibalism index (2.67 ± 0.94%) were observed in the group fed Tubifex sp. The highest weight gain (24.22 ± 0.53 g) and specific growth rate (9.35 ± 0.03%) were also recorded in this group. However, supplementation of turmeric flour at a dosage of 15 mg/kg in pasta feed was able to reduce cannibalism and improve the growth of Asian redtail catfish larvae. This treatment resulted in a cannibalism index of 11% and a survival rate of 82.67%. In terms of growth performance, larvae under this treatment exhibited a weight gain of 6.13 g, a length gain of 3.58 cm, a specific growth rate (SGR) of 6.07%/day, and a particular growth rate of length (SLR) of 4.25%/day. Pasta feed supplemented with 15 mg/kg turmeric flour can serve as an alternative to replace silk worms, achieving 25% of their weight gain and 63% of their length gain.

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