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Nur Arifin
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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 550 Documents
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THE ROLE OF THE COMMUNITY IN ENVIRONMENTAL MANAGEMENT IN THE COASTAL AREA OF RUPAT DISTRICT Bathara, Lamun; Nedi, Syahril; Effendi, Irwan; NST, Musyirna Rahmah; Nasution, Tio Afandi; Tanjung, Afrizal
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.8.3.364-372

Abstract

Coastal environmental problems in Rupat District cannot be resolved solely through a top-down approach or government intervention. This study was conducted in 2025 with the intention of comprehensively analyzing the role of the community in environmental management in the coastal areas of Rupat District, particularly on Ketapang and Lancah beaches. Through a systematic research approach, this study aims to identify the forms of community roles in coastal environmental management efforts, analyze factors that influence the level of community participation, describe the various challenges faced in implementing community-based environmental management, and formulate strategies for strengthening community roles that can be implemented sustainably. The method used in this study was a survey method with a total of 31 respondents, consisting of fishermen, seaweed farmers, fish traders, community leaders, and people involved in marine tourism activities. The results of the study can be concluded that community-based coastal environmental management has enormous potential but faces complex structural challenges
ASSESSMENT OF WATER QUALITY BASED ON NITRATE, PHOSPHATE, AND AMMONIA CONCENTRATIONS IN BURUK BAKUL VILLAGE, BENGKALIS, RIAU Hendris, Sefni; Yoswaty, Dessy; Nurrachmi, Irvina; Azuga, Nabila Afifah; Kambaren, Bella Billiant J Ananta; Putri, Rianti; Purbata, Ardi Gustri
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.8.3.391-397

Abstract

Coastal ecosystems are highly sensitive to nutrient enrichment, particularly from land-based activities and aquaculture effluents, which contribute to water quality degradation. This study evaluated the concentrations of nitrate, ammonia, and phosphate in the coastal waters of Buruk Bakul Village, Bengkalis, Riau Province, Indonesia. Water samples were collected from four representative stations in August 2025: a river estuary, a shrimp pond, a mangrove rehabilitation site, and a natural mangrove forest. The analysis was conducted using spectrophotometric methods in accordance with the Indonesian National Standards (SNI). Results indicated that nitrate concentrations ranged from 0.0822 to 0.1932 mg/L, ammonia from 0.5705 to 1.7338 mg/L, and phosphate from 0.0845 to 0.299 mg/L. All parameters exceeded the seawater quality standards for marine biota established by the Decree of the Minister of Environment No. 51/2004, indicating a significant anthropogenic influence. The river estuary recorded the highest nitrate and phosphate levels, reflecting inputs from land runoff and domestic waste, while ammonia peaked in the shrimp pond due to aquaculture discharge. Nutrient levels in mangrove-associated stations were lower but still above the threshold, indicating that mangrove ecosystems provide some capacity to retain and transform nutrients, although insufficient for full remediation. Elevated nutrient concentrations pose ecological risks, such as eutrophication and algal blooms, which may disrupt biodiversity and fisheries productivity. This study emphasizes the urgency of improving aquaculture waste management, reducing land-derived nutrient loading, and strengthening mangrove conservation and rehabilitation as integrated strategies to sustain coastal ecosystem health in Buruk Bakul and similar regions. These findings provide a baseline for nutrient management and coastal rehabilitation strategies in western Indonesian waters
OPTIMIZATION OF NURSERY TECHNIQUES FOR SILVER POMPANO (Trachinotus blochii) IN BPBL BATAM: ANALYSIS OF GROWTH PERFORMANCE, SURVIVAL RATE, AND WATER QUALITY Khalidah, Imanda; Lesmana, Indra; Firmansyah, Rodhi
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.8.3.419-426

Abstract

The production of silver pompano (Trachinotus blochii) in Indonesia has declined sharply, highlighting persistent issues in its nursery stage, particularly the inability to promote rapid growth and high survival rates when water quality fluctuates. This research assessed intensive nursery techniques implemented at Balai Perikanan Budidaya Laut  (BPBL) in Batam by systematically testing different stocking densities, feeding schedules, and key water-quality metrics. Over a twenty-one-day culture cycle, observers collected data daily and interpreted it using descriptive statistics. Fish length rose from an initial mean of 2.50 cm to 3.73 cm, and mean weight climbed from 0.50 g to 1.30 g, yielding an average specific growth rate of 2.5% per day, a survival rate of 83.7%, and a feed-conversion ratio of 2.1. During the trial, temperature (27.6 °C), pH (7.81), dissolved oxygen (5.7 mg/L), and salinity (30 ppt) consistently fell within national SNI 7901-2013 standards. Most deaths occurred during grading rather than through cannibalism, indicating that handling stress, rather than predatory behavior, was the primary cause of loss. Collectively, these results establish a reference point for nursery management of T. blochii and furnish Indonesian aquaculture planners with data needed to boost fish-seed output while strengthening coastal community livelihoods
HEDONIC TESTING OF MILKFISH COOKIES WITH ADDED MORINGA LEAVES AS COMPLEMENTARY FOOD FOR PREGNANT WOMEN TO PREVENT STUNTING IN NUNUKAN Siti Hajar; Jemri Jemri; Sri Astika; Jifa Jifa; Alifah Alifah
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.18-29

Abstract

Chronic Energy Deficiency (CED) in pregnant women occurs due to nutritional deficiencies due to insufficient energy and nutrient intake, which can endanger the mother's health and cause fetal growth retardation. This condition can be prevented by providing supplementary feeding (PMT) to balance nutritional intake and to avoid stunting from in utero (1). Stunting can occur in utero and is only visible when the child is two years old. Based on data from the Central Statistics Agency (BPS) of Nunukan Regency, the number of babies born with low birth weight (LBW) increased from 225 babies (2022) to 353 babies (2023), while the number of babies with malnutrition increased from 192 babies to 391 babies in 2023 (2). The urgency of this study is the provision of complementary foods in the form of cookies for pregnant women from processed milkfish with additional nutritional value from moringa leaves for early stunting prevention in Nunukan Regency, North Kalimantan Province. Processed cookies are very important for pregnant women to achieve optimal nutritional adequacy. The purpose of this study is to test the hedonic (level of preference) and proximate testing on cookies made from milkfish (Chanos chanos) with the addition of moringa leaves (Moringa oleifera) as an effort to overcome the problem of malnutrition cases, especially about stunting that starts from mothers during pregnancy or pregnancy as an early prevention so that children are not born with a large birth weight (LBW), especially in Nunukan Regency, North Kalimantan. The research method was a survey to measure the level of preference or acceptance of milkfish cookies containing nutrients from moringa leaves among pregnant women, with 30 panelists. Complementary foods were analyzed for preference levels to assess the innovation's acceptance in the processing of these cookies. The results of the proximate analysis of this cookie product that still do not meet the requirements are the water and ash content. Meanwhile, the nutritional content of cookies according to SNI 01-7148-2005 (special drinks for pregnant and/or breastfeeding mothers) and SNI 2973.2022 (biscuits) has met the quality requirements for protein, fat, and carbohydrate levels. Meanwhile, hedonic testing using SPSS version 27 with Duncan analysis for color parameters yielded 4.40; aroma, 4.07; texture, 4.33; taste, 4.10; aftertaste, 4.13; and overall, 4.13. These results indicate that all sensory attributes, aroma, texture, taste, aftertaste, and overall acceptance, were categorized as "liked," suggesting that the product has a good level of acceptance among the panelists
CARAPACE WIDTH-BODY WEIGHT RELATIONSHIP AND CONDITION FACTORS OF Portunus sanguinolentus IN SOUTHEASTERN BONE GULF, SOUTHEAST SULAWESI Abdul Hamid; Syamsul Kamri
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.9-17

Abstract

This study aimed to determine the body size, carapace width-weight relationship, and condition factors of Portunus sanguinolentus in southeastern Bone Gulf, Southeast Sulawesi. Samples of P. sanguinolentus were obtained from crab fishermen and were collected monthly. The measured data consisted of carapace width and body weight, stratified by sex. The Mann-Whitney test was used to assess differences in body size between males and females. The carapace width-body weight relationship was analyzed using nonlinear and linear regression analysis, and a t-test was performed on the value of b = 3 to determine the growth pattern of the crab. The condition factor analyzed was the relative condition factor. The results showed that male P. sanguinolentus had a larger body size than females. The carapace width-body weight relationship of male, female, and pooled P. sanguinolentus showed a strong and positive correlation, and the growth pattern was negative allometric. The relative condition factor of males was higher than that of females. The results of this study can be used as a basis for managing P. sanguinolentus in the southeastern Bone Gulf.
THE POTENTIAL OF BANDOTAN LEAVES (Ageratum conyzoides L.) AS AN IMMUNOSTIMULANT AND ANTIBACTERIAL AGENT IN AQUACULTURE: A REVIEW Nur Ikhlas Syuhada; Ronal Kurniawan; Okta Rizal Karsih; M Irsyad Nur
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.1-8

Abstract

Aquaculture intensification increases fish susceptibility to infectious diseases, prompting the search for natural alternatives to reduce dependence on synthetic chemicals. Bandotan leaves (Ageratum conyzoides L.) of the Asteraceae family contain secondary metabolites, including flavonoids, alkaloids, terpenoids, and saponins, with antibacterial, antioxidant, and immunomodulatory activities. This literature review aims to analyze the potential of bandotan leaves as a natural immunostimulant and antibacterial agent in aquaculture, focusing on their phytochemical content, mechanism of action, and safety. This study used a literature review method, conducting searches across national and international journal databases, university repositories, and research institute publications. The inclusion criteria included articles discussing the biological aspects, phytochemical content, antibacterial activity, immunomodulatory effects, physiological parameters, histology, and safety of bandotan leaves in the context of aquaculture. The results of the study showed that bandotan leaf extract effectively inhibited the growth of pathogenic bacteria in fish by disrupting cell membrane integrity and inhibiting bacterial enzymes. Its bioactive compounds enhance immune response, antioxidant activity, and reduce metabolic stress in fish. However, its application faces challenges in determining the optimal dosage, assessing histopathological effects, and managing potential respiratory distress at high concentrations. Further research is needed to optimize the formulation, understand the molecular mechanisms, and ensure the long-term safety of bandotan leaf use in sustainable fish farming systems.
TOTAL ECONOMIC VALUATION OF THE POLLUTED MANGROVE ECOSYSTEM IN BANDAR BAKAU DUMAI Fitri Herliza; Trisla Warningsih; Lamun Bathara
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.30-38

Abstract

This study aims to calculate the Total Economic Value (TEV) of the polluted mangrove ecosystem in Bandar Bakau Dumai, Riau Province. Mangrove ecosystems provide important ecological and economic services but face serious threats from pollution from industrial activities, domestic waste, and plastic waste. This study uses the Total Economic Value approach, which includes Direct Use Value (DUV), Indirect Use Value (IUV), and Opportunity Value (OV). Data was collected through surveys, interviews with 14 respondents, and secondary data analysis. The results show that the TEV of the mangrove ecosystem is IDR 468,960,000/year, or approximately IDR 15,128,387/ha/year. The DUV component of IDR 147,700,000 is derived from the utilization of shrimp, kedabu fruit juice, and nyirih leaves. The IUV of IDR 320,000,000 reflects services for coastal protection and the provision of marine biota habitat. Meanwhile, the OV of IDR 1,260,000 indicates the community's willingness to pay for conservation. This value confirms that, despite pollution, mangrove ecosystems continue to provide significant economic benefits and should be prioritized in conservation and sustainable management policies.
THE USE OF FERMENTED COCONUT MEAL (Cocos nucifera) USING EM4 IN FEED ON THE GROWTH OF GURAMI FISH (Osphronemus gouramy) Meliana, Annisa; Pamukas, Niken Ayu; Suharman, Indra
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.95-100

Abstract

Copra meal flour is used as a fish feed ingredient with a fairly high protein content of 18–24%. However, its crude fiber content is high, which can reduce its digestibility. Therefore, fermentation is needed to improve the quality of copra meal. This study aims to determine the percentage of copra meal flour fermented with EM4 in feed to produce the best feed efficiency and growth of gorami fish. This study employed an experimental method with a completely randomized design (CRD). Five types of feed were formulated to contain 32% protein, with feed P0 containing 100% soybean meal (control feed), and feeds P1, P2, P3, and P4 replacing soybean meal with fermented copra meal at 25%, 50%, 75%, and 100%, respectively gorami fish fry (with an average body weight of 2.08 ± 0.11 g) were stocked in floating net cages measuring 1 × 1 × 1 m3 at a density of 25 fish per cage. The experimental feed was given at 10% of the test fish biomass frequency three times a day at 08.00, 12.00, and 16.00 WIB, for 56 days. Feed digestibility was measured by giving the test feed three times a day to satiation, mixed with Cr2O3 and protein. The results showed that the use of TBKF in the feed significantly improved feed efficiency and gorami fry growth. Based on the results, it can be concluded that the use of 75% fermented copra meal can replace soybean meal in gorami feed, with feed digestibility (57.63%),  protein digestibility (80.08%), protein retention (37.56%), feed efficiency (52.31%), and specific growth rate (4.05%).
GROWTH AND PRODUCTION PERFORMANCE OF SAND LOBSTER (Panulirus homarus) CULTURED IN FLOATING NET CAGES Prayanti, Manta; Lesmana, Indra; Kristina, Kristina; Rusliadi, Rusliadi
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.108-117

Abstract

Sand lobster (Panulirus homarus) is a high-value marine commodity with promising potential for mariculture development in Indonesia. This study described the grow-out technique for P. homarus in floating net cages at BPBL Batam. It evaluated its production performance in terms of growth, feed utilization, survival, and water quality. A field-based observational study was conducted for 74 days using juveniles with an initial mean body weight of 5.14 g and an initial mean total length of 5.44 cm. Lobsters were reared in six submerged M-sized cages (0.7 m² per unit) at a stocking density of 50 individuals per cage and were fed chopped trash fish once daily at 20% of biomass. Mean body weight and total length increased to 20.94 g and 8.47 cm, respectively, with absolute weight gain of 15.80 g, absolute length gain of 3.03 cm, and a specific growth rate of 1.89% day⁻¹. However, the feed conversion ratio was high (30.00), and the survival rate was low (40.33%). Water-quality variables remained within acceptable ranges for lobster culture. These findings indicate that the system supported lobster growth, but feed-use efficiency and survival still require improvement through better feeding and husbandry management.
ANALYSIS OF HANDLING OF CATCH RESULTS ON THE QUALITY OF MACKEREL SCAD (Decapterus macarellus) USING ORGANOLEPTIC TECHNIQUES IN SIBOLGA MODERN FISH MARKET Situmorang, Melda Anugrah; Eddiwan, Eddiwan; Harahap, Mutiara Alkayakni; Fazri, Kurniawan; Saputra, Eka
Asian Journal of Aquatic Sciences Vol. 9 No. 1 (2026): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.9.1.101-107

Abstract

Activities, including landing, processing, marketing, logistics, vessel and gear maintenance, and mooring. Organoleptic testing assesses fish quality based on sensory characteristics, including color, texture, odor, and the freshness of the eyes and gills. This test is conducted by panelists using a specific assessment scale. The objectives of this study were: 1) to analyze the handling process of mackerel after catching and until auction at the Sibolga Modern Fish Market; 2) to assess the quality of mackerel using organoleptic testing. A survey approach was used. A total of 66 people and one informant participated. The research results show that the blue scad (Decapterus macarellus) handling process begins with unloading, transport to the weighing area, weighing and recording, cooling after weighing, sorting before auction, auction at TPI, distribution after auction, and transportation to the market. Based on the organoleptic test sheet evaluation of 66 traders of blue scad (Decapterus macarellus), a comparison of fish quality categories was found in two obtaining areas. The quality of the fish declined throughout the afternoon and evening, with traders in the outer area (50) receiving a score sheet of 6 (quite fresh) and traders in the inner section (16) receiving a score sheet of 7 (fresh), indicating a decline in fish quality. The catch at PPN Sibolga was handled in accordance with KKP regulations, including sorting the fish by size and type, washing them with clean water, cooling them with ice, and offloading them swiftly and carefully

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