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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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EFFECT OF CARROT FLOUR (Daucus carota) TO INCREASE GROWTH AND COLOR BRIGHTNESS IN LEMON CICHLID FISH (Labidochromis caeruleus) Octaviani, Dheamita Ayu; Armando, Eric; Jaelani, Abdul Qadir
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Ornamental fish is one of the main merchandise from the fisheries sector whose ability can generate income for the state and create income that can help the community's economy, especially those who are engaged in fisheries or cultivators. The most effective and dominant type of carotenoids for coloring fish is carotenoids derived from carrot flour because it is a natural source of beta carotene which can improve the quality and color brightness of ornamental fish such as lemon fish. The research design used a completely randomized design (CRD) with four treatments (carrot flour 0%, 5%, 10% and 15%) and three replications. The feed was tested on lemon cichlid fish measuring 3.7 - 4 cm and weighing 0.8 - 1 g which were kept in a 10 L jar. Parameters observed were growth rate, absolute weight, absolute length growth rate, survival rate, water quality and color increase in lemon fish. The results showed that the addition of 15% carrot flour had an effect on the color 9% brightness of lemon fish (Labidochromis caeruleus). The results showed that the addition of carrot flour for growth and color improvement was in the 15% carrot flour treatment, the absolute weight growth value was 0.73 g/fish, length 0.56 cm/fish, survival rate was 96.6%. The addition of carrot flour to the growth and color improvement can be concluded that a dose of 15% affects growth and can increase the color of lemon fish.
ANALYSIS OF ORGANIC MATTER CONTENT IN SEDIMENTS AND MACROZOOBENTHOS ABUNDANCE IN PAKNING RIVER WATERS, BENGKALIS REGENCY, RIAU PROVINCE Dwigantara, M. Fadhol; Amin, Bintal; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted in April 2021 to analyze organic matter content in the sediment and the abundance of macrozoobenthos. The purpose of this study was to analyze the content of organic matter in sediments and their relationship with the abundance of macrozoobenthos in the waters of the Pakning River, Bengkalis Regency, Riau Province. Sediment and macrozoobenthos samples were taken from the waters of the Pakning River, Bengkalis District, Riau Province. The method used in this research is a survey method. Sampling was determined using purposive sampling at four different stations. The results of this study indicate that the organic matter content of sediment in the waters of the Pakning River has a percentage of 6.73-12.76%. The highest organic matter content is at station 1 of 12.76% and the lowest organic matter content is at station 4 of 6.73%. The highest average abundance of macrozoobenthos was 19.26 ind/m2 at station 1 with the dominant species being Anadara granosa. Connection between organic sediment and abundance of macrozoobenthos has a linear regression equation y = 1.8442 +0.1662x with a coefficient (R2) of 0.1491 which means that the effect of organic matter in the waters of the Pakning River is 14.9% while 85.1% is influenced by other factors. The value of 0.38 indicates that the relationship between organic matter and the abundance of macrozoobenthos is, a moderate relationship.
SUSTAINABILITY STATUS OF MANAGEMENT TERUBUK FISH (Tenualosa macrura) IN BENGKALIS DISTRICT Junaidi, Rival; Efizon, Deni; Adriman, Adriman
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted from July to October 2021 in Bengkalis Regency. This research is focused on evaluating in detail the condition of the ultimate fisheries from the ecological, social, economic, and institutional aspects as well as scientific information for follow-up planning and implementation of the best fisheries management in the waters of the Bengkalis Strait. The research method used during the study was a survey method. Types and sources of data used in this study are primary data and secondary data. The number of key respondents used in this study were 30 people. Sustainable fisheries management is seen from five dimensions, namely the ecological dimension, the economic dimension, the social dimension, the technological dimension and the institutional dimension. The scores for each attribute were analyzed using the Rapfish technique and will be passed through several analyzes such as multi-dimensional scaling (MDS), leverage analysis (JackKnife), and Monte Carlo analysis. Based on the results of the study the results of the catch of the terubuk fish during the period June-September amounted to 160 fish. From this amount, it showed that the percentage of male fish caught was much more dominant, namely 110 fish (69%) than 50 female fish (31%). The results of the analysis of each dimension show that the ecological index (59.92%) is included in the moderately sustainable category, the economic dimension (52.94%) is included in the moderately sustainable category, the social dimension (50.54%) is included in the moderately sustainable category, the social dimension (50.54%) is included in the moderately sustainable category. Institutional (49.91%) is included in the sustainable category and the technological dimension (70.25%) indicates the category is quite sustainable. Thus, the design of the terubuk fish management in Bengkalis waters can use the dimensions of the attributes that are classified as quite sustainable, to support or improve the institutional dimensions in order to support the management of terubuk fish.
ESTIMATION OF CARBON RESERVES IN SEDIMENTS IN THE MANGROVE ECOSYSTEM OF BUKIT BATU VILLAGE, BENGKALIS REGENCY, RIAU Dermawan, Ernanda Putra; Siregar, Yusni Ikhwan; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was carried out in December 2021. Sampling and water quality measurements were carried out in the Bukit Batu Muara River, Bengkalis Regency, Riau Province. Sample analysis was continued at the Marine Chemistry Laboratory, Department of Marine Science, Faculty of Fisheries and Marine, Universitas Riau. The purpose of this study was to determine the estimation of carbon stocks in sediments, the comparison of carbon stocks between transects, and the relationship between density and carbon stocks in the Muara Sungai Bukit Batu mangrove area, Bengkalis Regency, Riau Province. The method used in this study is a survey method. Parameters measured included mangrove density (Ind/Ha), organic matter content, and carbon stock in sediments. In addition, water quality was also measured in the form of temperature, salinity, and degree of acidity. Analysis of carbon stock using the loss on ignition method. The result of average density of mangroves throughout the transect is 3733.33 (Ind/Ha). The lowest carbon stock value in sediments is in transect 2 with medium mangrove density with a value of 29.26 tons/ha, while the highest carbon stock value is in transect 3 with high-density mangrove areas with a value of 36.15 tons/ha. The results of a simple linear regression to determine the relationship between mangrove density and carbon stock show a coefficient of determination R² = 0.023, which means that 2.3% of total carbon stock is affected by density, while 97.7% is influenced by other factors. The value of R = 0.152, which means that the relationship between density and carbon stock in the Bukit Batu river estuary area, Bengkalis Regency, is low.
THE EFFECT OF ANESTHESIA OF BASIL (Ocimum basilicum) LEAF EXTRACT WITH DIFFERENT DOSES ON THE SURVIVAL OF CATFISH (Pangasius sp.) Faqihudin, M. Syukron; Hidayati, Sri; Aji, Muhammad Tri
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The purpose of this study was to determine the effect of anesthesia of basil leaf extract with different doses on the survival of striped catfish. This research was conducted in Kedungsari Village, North Magelang District, Magelang City, Jawa Tengah in January 2022. The study was carried out using a Completely Randomized Design (CRD) with 3 treatments and 4 replications. The treatments were anesthesia with doses of 10%, 15%, and 20%, the catfish that had fainted was put in Styrofoam for 7.5 hours. The variables observed included the duration of anesthesia, the duration of fainting, the length of recovery time, and survival. The results showed that the dose of basil leaf extract had the best concentration of basil leaf extract, which was 20% with 2.5 minutes of stunning time, 25.74 minutes of fainting time, and 6.13 minutes of recovery time. The highest survival rate of catfish using basil leaf extract was found at a concentration of 20%, 15% while the lowest survival rate was at a concentration of 10% treatment.
THE DISTRIBUTION AND ABUNDANCE OF TOXIC BENTHIC DINOFLAGELLATES IN MALANG RAPAT COASTAL WATERS OF BINTAN ISLAND, KEPULAUAN RIAU Nurrachmi, Irvina; Amin, Bintal; Andini, Dilla; Afriansyah, M.; Anadri, Rifqi Rafif
Asian Journal of Aquatic Sciences Vol. 6 No. 1 (2023): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This research was conducted in May - June 2018 by surveying and taking a sample from Malang Rapat water on the East Coast of Bintan Island, Kepulauan Riau to determine the abundance and distribution of toxic benthic dinoflagellates associated with seaweed (Sargassum sp) and seagrass (Enhalus accoroides). Samples were taken from four sampling locations which were carried out purposively by taking into account the different anthropogenic activities that occurred in each region. The results of the study found 3 genera of toxic benthic dinoflagellates, namely Gambierdiscus sp, Ostreopsis sp, and Prorocentrum sp. The highest abundance of toxic benthic dinoflagellates associated with Sargassum sp was found in station 3, which was 302.279 cells/g, and the lowest at station 4 with (133.529 cells/g), while E. accoroides has the highest abundance at station 1 which was 620.65 cells/g). The abundance of toxic dinoflagellates in Sargassum sp has a positive correlation with nitrate concentration, but on the contrary, it was negatively correlated with the concentration of nitrate and phosphate in these waters to E. accoroides. The measured water quality parameters were still within the tolerance range for the marine organism. Further research is still needed to answer the cause of these differences and whether there are any fluctuations of abundance and the specific appearance of the toxic dinoflagellate.
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
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
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
ANALYSIS CONCENTRATION OF NITRATE, PHOSPHATE, SILICATE AND RELATIONSHIP WITH DIATOM ABUDANCE IN WATERS TANJUNG TIRAM DISTRCTS BATU BARA REGENCY OF NORTH SUMATERA PROVINCE Hidayat, Rahmat; Nedi, Syahril; Nurrachmi, Irvina
Asian Journal of Aquatic Sciences Vol. 2 No. 1 (2019): April
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Input of nutrients into the waters from various human activities (residential, agriculture and industry) has the potential to cause changes in the physical, chemical and biological conditions of the waters. The study aims to determine the relationship of concentrations of nitrate, phosphate and silicate with the abundance of diatoms in the Tanjung Tiram waters. The method used is the survey method, the determination of the location of sampling is done by purposive sampling, data analysis (multiple regression). Based in the results of laboratory analysis nitrate concentrations ranged from 0,0819 – 0,1167 mg/l, the phosphate concentration ranged from 0,1002 – 0,1526 mg/l, and silicate concentration ranged from 0,04447 – 0,5418 mg/l. The abundance of diatoms in Tanjung Tiram waters ranged from 156,9 – 302,8 ind/l. The results of statistical analysis of the relationship of nitrate, phosphate and silicate with the abundance of diatoms are expressed in terms of equation Y = 350,906 – 58,065Nitrate– 2644,624phosphate+ 440,363Silicate. This statement explains the concentration of nitrate, phosphate related negative (-) to the abundance of diatoms and silicate positive (+) related to the abundance of diatom. This condition shows that the nutrient concentration in these waters is relatively high so that it affects the abundance of diatoms.

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