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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).
Arjuna Subject : -
Articles 543 Documents
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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.
PHYSIOLOGICAL AND BLOOD BIOCHEMICAL RESPONSES OF Pangasianodon hypophthalmus ENRICHED PELLETS Citrus jambhiri L. Simalango, Cindy Naomi Fadilla Christine; Riauwaty, Morina; Syawal, Henni
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.327-336

Abstract

Jungga lime (Citrus jambhiri L.)/Sundai acid/Limau kuit is a natural ingredient that contains alkaloids, saponins, steroids, tannins, flavonoids, ascorbic acid, essential oils, and limonene, which are antibacterial. This research was conducted from August to December 2024 at the Laboratory of Fish Diseases and Parasites, Faculty of Fisheries and Marine, Universitas Riau. This research aimed to analyze the physiological and biochemical responses of the blood of striped catfish. The method used was experimental with a completely randomized design (CRD) of 1 factor, five treatments, and three replicates. The treatments applied were Kn (without the addition of jungga lime and without being infected with A. hydrophila), Kp (without jungga lime and infected with A. hydrophila), and jungga lime-enriched pellets at P1 (6.0 mL/kg), P2 (6.5 mL/kg), and P3 (7.0 mL/kg), and infected with A. hydrophila. Striped catfish (P. hypophthalmus) with a size of 8-12 cm and a weight of 6-7 g were kept in a 54x37x29 cm container, with a stocking density of 1 fish/3 L, and fed 3 times a day and sanitation. On day 32, fish were intramuscularly challenged with A. hydrophila (108 CFU/mL) at 0.1 mL. The results showed that the best dose was P3 (7.0 mL/kg) with a blood glucose of 79.33 mg/dL, Mg 3.07 mg/dL, Ca 9.87 mg/dL, P 4.03 mg/dl, Lisozyme activity of 259 units, mL, weight growth reached 19.11 g, and length growth reached 5.39 cm. Adding jungga lime to fish feed can improve post-challenge fish blood's physiological and biochemical responses
POPULATION DYNAMICS OF KAWAKAWA (Euthynnus affinis) LANDED AT PPI UJONG BAROH, WEST ACEH Mursawal, Asri; Wahyuni, Sri; Mardhatila, Anisa; Oktavia, Oktavia; Diana, Fitri; Marbun, Serliana Hotmariska; Kurniawan, Ronal
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.345-355

Abstract

This study analyzed the population dynamics of kawakawa tuna (Euthynnus affinis) landed at PPI Ujong Baroh, West Aceh, from May to August 2025, using length-frequency data and the Von Bertalanffy growth model. A total of 815 individuals were measured to estimate growth, mortality, and exploitation parameters. The fork length ranged from 22–69 cm, dominated by medium-sized fish (30–37 cm FL), with the length at first capture (Lc = 33 cm FL) notably smaller than the length at first maturity (Lm ≈ 42–43 cm FL). Growth analysis indicated rapid juvenile growth, characterized by an asymptotic length (L∞) of 90 cm and a relatively high growth coefficient (K), while recruitment occurred periodically throughout the year. Mortality estimates showed total mortality (Z) of 4.77/year, natural mortality (M) of 1.45/year, and fishing mortality (F) of 3.32/year, resulting in an exploitation rate (E) of 0.70, which exceeds the optimal reference point (E = 0.5). These findings indicate that the kawakawa tuna stock in West Aceh is currently overexploited. This study provides the first updated, location-specific population parameter estimates for E. affinis in West Aceh waters, offering a critical scientific baseline for regionally adaptive fisheries management. Science-based management measures are therefore recommended, including implementing a minimum landing size of ≥43 cm FL, seasonal closures during spawning periods, effort control, and strengthened fisher participation to ensure long-term stock sustainability
EFFECT OF Chaetomorpha sp. EXTRACT ON THE HEMATOLOGY OF TILAPIA (Oreochromis niloticus) INFECTED WITH Aeromonas hydrophila M. Riswan; Sri Wahyuni; Ronal Kurniawan; Hayatun Nufus; Asri Mursawal
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.337-344

Abstract

Chaetomorpha sp. is a green macroalgae that contains various bioactive compounds with antibacterial and anti-inflammatory activities, as well as the potential to improve the physiological health of fish. This research investigates how incorporating Chaetomorpha sp. extract into the diet influences the hematological parameters of Tilapia (Oreochromis niloticus) challenged with Aeromonas hydrophila. The study used a completely randomized design (CRD) with four levels of extract supplementation (0, 25, 50, and 75 mL/kg of feed), with each treatment replicated three times. The hematological parameters analyzed included total erythrocytes, hematocrit, hemoglobin, and blood glucose. The findings indicated that adding Chaetomorpha sp. extract to the diet significantly (p<0.05) improved all hematological indicators relative to the control, with 50 mL/kg of feed as the most effective dosage. The highest erythrocyte count 1.89 x106 cells/mm3, hematocrit value 35.67%, and hemoglobin concentration 6.87 g/dL were observed in fish fed 50 mL/kg extract. This increase in hematological values indicates improved oxygen transport capacity, physiological condition, and metabolic response in fish. Bioactive constituents, including sulfated polysaccharides and flavonoids, are believed to enhance the hematological condition of fish. These findings confirm the potential of Chaetomorpha sp. as a natural supplement to support Tilapia health in sustainable aquaculture systems.
CLIMATE-INFORMED ECOLOGICAL MONITORING OF ZELI LAKE: REMOTE SENSING AND FIELD APPROACHES Mammadova, Ulviyya; Guliyev, Fuad; Aliyev, Elchin
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.453-468

Abstract

The ecological and tourism potential of Zeli Lake has been assessed using remote sensing techniques based on aerospace data. Using OpenStreetMap and Google Earth, the eco-geographical features of the lake were identified from these materials. The lake covers approximately 2,551 m² (0.26 ha) and has a total perimeter of 202.4 m. Its absolute altitude is around 909 m above sea level, while the relative altitude (eye altitude) reaches 1.37 km. From a satellite view, the lake has an oval, leaf-like shape. According to Google Earth measurements, its map length is 76.60 m and ground length is 76.96 m with a heading of 193.43°. The width is 63.37 m on the map and 63.39 m on the ground, with a heading of 90.59°. The exact geographic location of the Lake is 40°24′24.6″ N, latitude, and 46°23′10.8″ E longitude. So far, the ecotourism resources of the research object have not been comprehensively studied. In this respect, the lake's climatic conditions were analyzed using Landsat satellite imagery, other remote sensing data, and field visits. Seasonal monitoring was conducted to assess climate, forest cover, and visitor activity. The woodland surrounding the lake covers about 0.88 ha within a perimeter of 678 m. The area remains largely undeveloped, with only a small café located on the shore; no cottages, hotels, or hostels exist nearby. During autumn migration, several bird species are observed around the lake. Many of these belong to the species listed in the “Green Book” and “Red Book” of the Republic of Azerbaijan. In conclusion, the lake itself is a valuable natural site with promising ecotourism opportunities. However, its ecosystem has not yet been fully investigated, and further interdisciplinary research is required to evaluate and sustainably develop its resources.
GROWTH PATTERNS AND GONAD MATURITY LEVELS OF (Barbonymus schwanefeldii) FISH IN THE BATANG ASAI SAROLANGUN RIVER Wulanda, Yoppie; Magwa, Rizky Janatul; Gelis, Ester Restiana Endang; Heltria, Septy; Yunita, Lauura Hermala; Ramdhani, Farhan; Rolin, Febrina; Leni, Yusyam; Khaldun, Muhammad Hafidz Ibnu; Bareta, Ainun Rohmawati
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.398-405

Abstract

The condition of the Batang Asai River in Sarolangun Regency, Jambi, has experienced a decline in water quality due to anthropogenic activities such as land clearing, settlement, and mining. This condition threatens the sustainability of fish populations, especially those from the Cyprinidae family, which are an important and environmentally sensitive group of fish for consumption, one of which is the lampam (Barbonymus schwanefeldii). However, scientific information on the bioecology of lampam in this region is very limited. Therefore, this research is needed to provide basic data to support adaptive conservation and fisheries management strategies. This study aims to analyze the growth patterns and gonadal maturity levels of lampam in the Batang Asai River, Sarolangun Regency, as a basis for inland fisheries management. A total of 113 fish, consisting of 64 males and 49 females, were observed. Male fish had a positive allometric growth pattern, while female fish had an isometric growth pattern. Analysis of Gonad Maturity Level (GML) found fish with GML I to GML IV, but immature gonads dominated the condition of the fish. In general, the water quality of the Batang Asai River still supports fish life, as can be seen from the growth patterns of the fish, but most of the fish found during the study were still immature despite the presence of fish with GML I to GML IV.
THE EXISTING CONDITION OF THE DRIED SALTED FISH SUPPLY CHAIN IN SIBOLGA CITY, NORTH SUMATRA Limbong, Irwan; Prayoga, Muhammad Yogi; Fitri, Amraini; Pahana, Andrha Syatha
Asian Journal of Aquatic Sciences Vol. 8 No. 3 (2025): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.3.446-452

Abstract

Sibolga City is one of the coastal areas in North Sumatra Province that plays a vital role in Indonesia’s marine and fisheries sector. This study aims to analyze the supply chain system of dried salted fish in Sibolga City, which includes three main components: the product flow, information flow, and financial flow. The research was conducted in September 2025 using a descriptive method with a mixed quantitative and qualitative approach. Primary data were obtained through interviews and field observations involving fishermen, dried salted fish processors, collectors, retailers, and the Department of Marine Affairs and Fisheries (DKP) of Sibolga City. In contrast, secondary data were derived from DKP reports. The results showed that there are three main supply chain patterns: (1) fisherman–processor–collector–retailer–consumer, (2) fisherman–processor–collector–consumer, and (3) fisherman–processor–direct consumer. On average, dried salted fish processors in Sibolga can produce between 100 and 200 kg per day, depending on the availability of raw materials. Shorter distribution channels generate higher efficiency by reducing marketing costs, accelerating the flow of information and finance, and maintaining product quality. This study concludes that the dried salted fish supply chain in Sibolga City has been functioning but remains sub-optimal. Strengthening coordination among actors, improving access to formal financing, and utilizing information technology in distribution and marketing are necessary to enhance efficiency and increase the added value of dried salted fish products at the local level.

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