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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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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 543 Documents
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EVALUATION OF WATER QUALITY AND GROWTH PERFORMANCE OF RED TILAPIA (Oreochromis sp) IN CULTURE USING BIOFLOCK TECHNOLOGY Putra, Iskandar; Rusliadi, Rusliadi; Masjudi, Heri; Alfinda, Rudi; Asiddiqqi, Hasby; Syahroni, Desty; Kurniawan, Ronal; Firmansyah, Rodhi; Yulindra, Ade
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.305-311

Abstract

Water quality plays an important role in maintaining and increasing fish production. Tilapia (Oreochromis niloticus) is one of Indonesia's freshwater fish that has economic value. To increase production, tilapia cultivation is carried out intensively, characterized by high stocking density and provision of protein-rich feed. Good water quality control and feeding are key to the success of this intensive culture. Biofloc technology is one of the appropriate technologies for intensive tilapia rearing since fish can live at high densities and have a wide environmental tolerance. Biofloc technology is an alternative solution to problems in overcoming cultivation waste such as ammonia and nitrite. Based on the above, this study was conducted to determine the effectiveness of the biofloc system in converting ammonia compounds, improving water quality in the aquaculture environment, and understanding the relationship between water quality and tilapia growth. The research was conducted for 60 days to measure several water quality parameters, namely temperature, dissolved oxygen, acidity (pH), and ammonia, and to observe the growth parameters of tilapia. The treatment applied in this study was the addition of probiotics in feed with four treatments and three replications. The results showed that the biofloc system's water quality is tolerant to tilapia growth. The best growth results in treatment A with each value of absolute weight 14.70±0.10d, absolute length 6.70 ± 0.10d, specific growth rate 3.87±0.01c, and survival rate 100±0.00b
ANALYSIS OF TYPES AND ABUNDANCE OF SOLID DOMESTIC WASTE IN THE COASTAL TOURIST AREA OF DUMAI CITY Pramukti, Masdhuki; Nedi, Syahril; Amin, Bintal
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.312-317

Abstract

The coastal areas of Dumai City in Riau Province are rapidly developing regions, especially in the tourism sector. This city offers several attractive beach destinations, such as Pasir Koneng Beach, Beringin Indah Beach, and Purnama Beach, attracting many local and international tourists. However, tourism growth in Dumai City also leads to an increase in solid domestic waste, which can threaten the coastal environment and the sustainability of marine ecosystems. This research aims to analyze the types and abundance of solid domestic waste in the coastal tourism areas of Dumai City. Through direct survey methods and descriptive analysis, samples of solid domestic waste were collected from three different beach locations: Purnama Beach, Koneng Beach, and Beringin Indah Beach. The results show that plastic waste is the most dominant type in all research locations, followed by wood and Styrofoam. Analysis of solid domestic waste's mass density and abundance indicates no significant difference between sampling stations or sampling times. This study provides a better understanding of the solid domestic waste issue in the coastal areas of Dumai City. It emphasizes the need for more effective management actions to maintain the sustainability of coastal tourism environments and prevent negative impacts on marine ecosystems and human well-being.
CORAL REEF DISTRIBUTION MAPPING CASE STUDY OF SETAN ISLAND WATERS, WEST SUMATRA Pambudi, Bagas Ariya; Thamrin, Thamrin; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 7 No. 2 (2024): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.2.318-328

Abstract

The research was conducted in May 2023 in Setan Island, West Sumatra. The study aimed to map the distribution of coral reefs, test the accuracy of the resulting map, and determine the condition of coral reef cover on Setan Island. The methods used are remote sensing methods using Sentinel-2 satellite imagery and field survey methods to validate the distribution of coral reefs resulting from image data processing (Groundcheck) and to observe the condition of coral reefs using the Underwater Photo Transect (UPT) method. Determination of sampling locations to ground check the distribution of coral reefs using a Stratified random sampling method while determining sampling locations for observations of coral reef cover using a purposive sampling method. The study results obtained a coral reef distribution map with a reef distribution area of 13.18 ha or 47.55% of the total shallow water area. The accuracy test found an accuracy value of 80% with a kappa coefficient 0.7, where the category is good and the level of trust is moderate. The condition of coral reef cover based on live corals in the waters of Setan Island is in the Fair and Poor categories. Percentages range from 0.33% to 31.36%. The dominating lifeform types are coral massive and coral submassive.
HISTOPATHOLOGICAL OF STRIPED CATFISH (Pangasianodon hypophthalmus) REARED IN DIFFERENT SALINITIES Riswan, M; Syawal, Henni; Tang, Usman M; Effendi, Irwan; Kurniawan, Ronal; Wahyuni, Sri; Putri, Mega Novia
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.1-6

Abstract

This study aimed to discover the effects of different salinities on histopathological Pangasianodon hypophthalmus. The method used is experimental by applying a completely randomized design (CRD) with four treatments: salinity 0 ppt, salinity 5 ppt, salinity 7 ppt, and salinity 9 ppt. The fish specimen is 8-10 cm in length and weighs 5 g. It was raised in a 54 L tank containing 40 L of water at a density of 2 fish 1 L-1 and kept for 45 days. Feed with commercial pellet 3 times a day in satiation. The results showed histopathological changes in gills and kidneys occurred at a salinity of 9 ppt. Chloride cell hypertrophy and secondary lamella bend in the gill organs, while the kidneys have acute tubular necrosis. Meanwhile, a salinity of 7 ppt resulted in abnormalities in the kidney organs with hemorrhage. It can be concluded that a salinity of 5 ppt indicates a safe salinity condition for the maintenance of striped catfish.
ANALYSIS OF BLUE ECONOMY STRATEGY IN MAINTAINING CORAL REEF BALANCE: A CASE STUDY IN AMED WATERS, BALI Matondang, Ridwan Rafsyanjani; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.7-19

Abstract

Amed Waters, Bali, is one area that utilizes coral reefs in economic development. However, climate change, human activities and other factors have threatened the condition of coral reefs in Amed Waters. This study aims to determine the condition and social and economic potential of coral reefs and examine the appropriate blue economy strategy in maintaining the balance of coral reefs in Amed Waters, Bali. This research was conducted in September-November 2024. This research used direct field data collection methods such as Underwater Photo Transect (UPT), interviews and the Analytical Hierarchy Process (AHP). Based on the percentage of coral cover and the interviews' results, the results showed that coral reefs in Amed Waters can be classified as poorly damaged, so conservation efforts and sustainable management are needed to maintain the balance of coral reefs. Coral reefs have social and economic potential in the fisheries sector, with a fishing group of 19 people and marine tourism in the form of diving and snorkelling. The main focus of community economic development is the tourism sector. The blue economy strategy that can be applied in the conservation of coral reefs in Amed Waters, Bali, focuses on environmental aspects of coral reef health, economic aspects of increasing community income, and social aspects of community participation
EFFECT OF REVERSE BIOFLOC SYSTEM WATER QUALITY ON GROWTH AND SURVIVAL OF RED TILAPIA (Oreochromis niloticus) IN CIANJUR, WEST JAVA Putri, Rahma Windy Sah; Iskandar, Iskandar; Rostika, Rita; Siswoyo, Siswoyo; Priorwirjanto, Gatot Hari
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.20-32

Abstract

This study aims to determine the effect of a reverse biofloc system on the water quality, growth, and survival of red tilapia (Oreochromis niloticus). The research method is experimental with a completely randomized design (CRD). The containers used were 13 buckets with a capacity of 100 L, with one control and three treatments, each repeated four times. Each container was filled with 10 red tilapia fish. Treatments included probiotics with doses of 5 mL, 10 mL, and 15 mL. The results showed that the treatment with 15 mL probiotics produced the highest fish weight growth, with an average of 558.75 g and an average length growth of 9.1 cm. Analysis of variance (ANOVA) showed significant differences in fish weight and length growth, indicating that probiotic concentration influenced fish growth. All treatments' survival rates (SR) reached 100%, indicating that the inverted biofloc system can maintain optimal environmental conditions. Water quality in the reverse biofloc system did not significantly affect fish growth, so other factors, such as microorganism density and nutrient availability, played a role. This study concludes that the reverse biofloc system with the addition of 15 mL probiotics provides the best results in increasing the growth of red tilapia without affecting its survival.
ANALYSIS OF REGULATIONS FOR DETERMINING THE LIMITED PROTECTION STATUS OF TERUBUK FISH (TENUALOSA MACRURA) PERMEN-KP NO. 210 OF 2023 REFERRING TO NO. 58/PERMEN-KP/2020 CONCERNING CAPTURE FISHERIES BUSINESSES Thamrin, Thamrin; Harahap, Irawan; Oktapani, Silm
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.33-40

Abstract

This research aims to determine the form of analysis, as well as determine the obstacles and constraints in implementing the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number: PERMEN-KP No. 210 of 2023 if guided by PERMEN-KP No. 58 of 2020 concerning capture fisheries businesses. In scientific research using a qualitative approach with an interpretative normative paradigm, the available theories used for research are constructed as an imperfect building, and this research is descriptive. In implementing the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia Number: PERMEN-KP No. 210 of 2023 concerning Limited Protection of Terubuk Fish (Tenualosa macrura) has not been implemented in the socialization, sea patrol and monitoring activities carried out by the Government, Indonesian National Army, Police and community monitoring groups. If PERMEN-KP No. 210 of 2023 is guided by PERMEN-KP No. 58 of 2020 concerning capture fisheries businesses, there will be discrepancies between the rules made and the rules applied in the field. The effectiveness of the implementation of the Decree of the Minister of Maritime Affairs and Fisheries of the Republic of Indonesia on the availability of fish resources legally and seen from fishermen's catches has increased and is quite effective, but it is not yet significant because sanctions for violations have not been realized and the obstacles and obstacles to the implementation of the Decree when referring to PERMEN-KP No. 58 of 2020 should not be needed. Fishermen who have small boats (< 5 gross tonnage) are allowed to catch terubuk (Tenualosa macrura) in conservation areas following PERMEN – KP No. 58 of 2020.
THE EFFECT OF Moringa oliefera LEAF FERMENTED ENRICHED PELLETS ON HEMATOLOGY OF Pangasianodon hypophthalmus REARED IN PHOTOPERIOD SYSTEM Gusriansyah, Dimas; Syawal, Henni; Riauwaty, Morina
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.41-52

Abstract

Moringa leaf (Moringa oleifera) is a herbal plant that has the potential to inhibit bacterial growth and increase immune response. This research was conducted from April to July 2024 at the Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau. This study aims to obtain the best dose of fermented moringa leaf added to feed to the immunity of Siamese striped catfish reared on a photoperiod system and tested with A. hydrophila. The research method is the experimental method applying a completely randomized design (CRD) with four treatments and three replicates. Treatment 0 without adding fermented moringa leaves, P1: 10 g/kg feed, P2: 15 g/kg feed, and P3: 20 g/kg feed and challenged with A. hydrophila. The test fish samples measuring 6-7 cm were reared using 100 L buckets of 12 containers with a 30 fish/container stocking density. Feeding was done ad satiation with a frequency of 3 times daily at 08.00, 13.00 and 17.00 WIB. The results showed that adding fermented moringa leaf to the feed affected the immunity of striped catfish. The best dose was found in P1 (10 g/kg feed) with total erythrocytes 2.75 x 106 cells/mm3, hemoglobin level 8.80 g/dL, hematocrit level 34.00%, and total leukocytes 10.86 x 104 cells/mm3, leukocrit level 3.33%, lymphocytes 76.00%, monocytes 7.33%, neutrophils 7.33%, Thrombocytes 9.33%, absolute weight growth 15.02 g/fish, absolute length growth 6.88 cm/fish, 96.67% survival rate. Based on the study's results, feeding added fermented moringa leaves has a significant effect and can improve the immunity of Pangasinodon hypophthalmus
LAND RENT VALUE OF BLOOD SHELL PONDS (Anadara granosa) IN BANGKO DISTRICT ROKAN HILIR REGENCY RIAU PROVINCE Delwita, Delwita; Warningsih, Trisla; Yulinda, Eni
Asian Journal of Aquatic Sciences Vol. 8 No. 1 (2025): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.8.1.53-61

Abstract

The land rent value is one of the critical indicators in determining the profitability of blood cockle (Anadara granosa) cultivation and the efficiency of pond land utilization. This study aims to calculate the land rent value of blood cockle ponds and analyze the factors influencing land rent value in Bangko District, Rokan Hilir Regency, Riau Province. This study used a survey method with a census respondent selection technique involving 43 blood cockle farmers. Data were collected through interviews, observations, questionnaires, and literature studies. Data was analyzed using the rental value calculation method and multiple linear regression analysis. The results showed that the average land rent value of blood cockle ponds in Bangko District was IDR 49.777,968/ha, and the main factors that affect the rent value of blood mussel pond land are pond productivity and the distance of the pond location to the market center. This study concludes that the higher the productivity, the higher the land rent value, while the further the distance, the lower the land rent value
ISOLATION OF LACTIC ACID BACTERIA FROM VANAME SHRIMP (Litopenaeus vannamei) AND ITS ANTAGONISM TO PATHOGEN BACTERIA Sufaidah, Siti Nur; Nursyirwani, Nursyirwani; Feliatra, Feliatra
Asian Journal of Aquatic Sciences Vol. 7 No. 1 (2024): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/

Abstract

Vaname shrimp is one of Indonesia's leading export species and is widely cultivated. The main problem in vaname shrimp pond cultivation is the attack of shrimp diseases caused by bacteria or viruses. This study aims to isolate and identify lactic acid bacteria (BAL) from vaname shrimp (Litopenaeus vannamei) and test their antagonism against pathogenic bacteria. The research was conducted from February to April 2023. The method used in this study is a survey method. Sampling was conducted at the vaname shrimp pond of the Fisheries Service Task Unit (UPT), Tanjung Punak Village, Rupat Utara District, Bengkalis Regency, Riau. The method used in this research was a survey method. BAL was isolated using MRS Agar + CaCO3 media. The Kirby-Bauer method was used to test bacterial antagonism against pathogenic bacteria. Based on the identification of seven isolates, it was found that only four isolates were positively identified as LAB bacteria, namely 47D, 54T1, 73DB1, and 73BD2. The results of the antagonism test against pathogenic bacteria showed that all BAL isolates could not suppress the growth of E. coli bacteria. However, these isolates suppressed the growth of A. hydrophila bacteria, with the widest inhibition zone diameter on isolate 54T1 (4.2 mm). On Vibrio sp. bacteria, the widest inhibition zone of BAL was on isolate 73DB1 (6 mm). These results indicate that the antibacterial activity produced by BAL is still relatively weak.

Page 35 of 55 | Total Record : 543

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