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Nur Arifin
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arifinik013@gmail.com
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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 543 Documents
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THE RELATIONSHIP BETWEEN NITRATE AND PHOSPHATE CONTENT AND DIATOM ABUNDANCE IN THE WATERS OF PANDAN ISLAND, WEST SUMATRA Moulidia, Candri; Nedi, Syahril; 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.7.2.226-231

Abstract

This research was conducted in the waters of Pandan Island, West Sumatra, to determine the content of nitrates, phosphates, and diatom abundance and the relationship between nitrate and phosphate concentrations and diatom abundance. The method used is the survey method. The sampling station is determined by purposive sampling based on cardinality. Define the relationship between nitrate and phosphate content content and diatom abundance using simple linear regression. The results showed that there were eight species of diatoms with the class Bacillariophyceae, including Isthmia sp, Amphora sp, Closterium sp, Nitzschia sp, Hemiaulus sp, Asterionella formosa, Leptocylindrus sp. The highest diatom abundance was at station IV, with an average abundance value of 14.092,09 ind/L, and the lowest abundance was at station I, with an average of 5.317,77 ind/L. The relationship between nitrate concentration and diatom productivity was obtained with the value of y = 31.184x-15.082 and the correlation coefficient (r) = 0.711. Meanwhile, the phosphate concentration on diatom productivity was obtained with a value of y = 51.543x-32.477 and a relational (r) coefficient value = 0.738. There is a strong relationship between nitrate and phosphate content and diatom abundance in the waters of Pandan Island, West Sumatra
POTENTIAL FOR MARINE ECOTOURISM DEVELOPMENT AT SUNUA BEACH PARIAMAN CITY WEST SUMATERA PROVINCE Ikhsan, Miftahul; Samiaji, Joko; Nasution, Syafruddin
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.7.2.232-239

Abstract

Produces economic benefits for people in the area and the surrounding area. The tourism potential of Sunua Beach is not yet known from scientific studies. The lack of information regarding this research location means that many foreign tourists need to learn about this tourist location. The research was conducted in February-March 2024 at Sunua Beach, Pariaman City, West Sumatra Province. The study aims to identify the potential and objects that need to be developed at Sunua Beach as a marine ecotourism area, to determine public perceptions, and to formulate a strategy for developing marine ecotourism to support sustainable tourism. The method used in research is a survey method. The placement of station points was carried out using the purposive sampling method. The water quality measurements were observed by temperature, brightness, salinity, pH, current speed, water depth, and beach slope. The selection of respondents each consisted of 15 tourists, 15 local communities, 10 business actors, and 10 policymakers. Based on the tourism suitability index, Sunua Beach is included in the S1 category (very suitable) with tourist suitability index values of 83.97%, 86.53%, and 83.97%, respectively, on SWOT analysis through observation and identification of various factors in the field, the results obtained a member of strengths, weaknesses, opportunities and threats at Sunua Beach. The results of the analysis will be used to develop strategies for developing ecotourism at Sunua Beach
POPULATION STRUCTURE OF Cerithidea obtusa (GASTROPODA) IN THE INTERTIDAL ZONE OF THE EASTERN COAST BENGKALIS ISLAND RIAU PROVINCE Safitri, Nely; Nasution, Syafruddin; Mulyadi, Aras
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.7.2.240-250

Abstract

This research investigates the population dynamics of the gastropod Cerithidea obtusa along the eastern intertidal zones of Bengkalis Island, focusing on species abundance, spatial distribution, and size variation. Conducted over the span from December 2023 to January 2024, this investigation took place at two specific locales on the east coast of Bengkalis Island: Sekodi Village (Station I) and Teluk Lancar Village (Station II), employing a comprehensive survey methodology. The intertidal zones were segmented into upper, middle, and lower subzones, each with three transects containing one m² plot. Temperature, salinity, pH levels, substrate composition, and organic matter content were measured as indicators of the quality of the environment. The results revealed a significant difference in population density between the stations, with Station I showing the highest abundance at 240.000 ind/Ha and Station II the lowest at 33.300 ind/Ha. The middle subzone at Station I was the most populated, with 93.300 ind/ha. Shell size analysis revealed three categories: small (<3,35 mm), medium (3,35-4,05 mm), and large (≥4,05 mm), with medium-sized shells being the most prevalent. The distribution pattern of C. obtusa exhibited both uniform and clustered arrangements. A significant disparity in abundance was noted between Station I and Station II, with a p-value of 0,000, underscoring the considerable variation in population density between the two locations
POTENTIAL OF CORAL REEF ECOSYSTEMS FOR DEVELOPING MARINE TOURISM ON PASIR PUTIH BEACH, SUKABUMI DISTRICT Pasaribu, Roberto Patar; Rahman, Abdul; Djari, Anthon A; Anasri, Anasri; Kurnia, Pipin
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.7.2.251-260

Abstract

The coral reef ecosystem is one of the main ecosystems in coastal areas. Physically, it has a role as a protector of the coast from currents and waves, and ecologically, it has a role as a habitat for various marine biota for shelter and foraging. Besides that, with their elegance and beauty, coral reefs can become an attraction for marine tourism. This research aims to describe the condition of the coral reef ecosystem and analyze the suitability of coral reef conditions to determine the potential for marine tourism on Pasir Putih Beach, Sukabumi Regency. The method used is direct observation and measurement of parameters needed to determine the potential for marine tourism. Data processing and analysis were performed using CPCe 4.1 software and Microsoft Excel. The observations and data analysis results show that the potential for marine tourism in Pasir Putih Geopark Ciletuh can be considered reasonable according to the tourism suitability index criteria
HISTOPATHOLOGICAL OVERVIEW ASIAN REDTAIL CATFISH (Hemibagrus nemurus) SKIN AND GILLS INFECTED WITH ECTOPARASITES Hanifah, Nada; Hidayati, Sri; Aji, Muhammad Tri
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.7.2.261-266

Abstract

Frequent problems faced in fish farming are possible parasites that cause a declining level of fish production. The study's objective is to know the damage to the skin and gills of Asian redtail catfish in a manner that infects histopathology ectoparasites. The sample used three fish in each pool: Freshwater Fish Hatchery and Cultivation (PBIAT) Ngrajek and Regional Technical Implementation Unit (UPTD) Freshwater Fish Hatchery Sawangan in July 2022. Results data analysis inspection histopathology skin found necrosis and infiltration cell inflammation, for gill found exists infection parasite Dactylogyrus sp and Ichthyophthirius multifiliis as well as secondary lamellae adhesions, congestion, and cartilage hyperplasia hyaline.
INVENTORY OF FISH SPECIES IN OXBOW TELUK BENDERAS, RANTAU BARU VILLAGE, PANGKALAN KERINCI DISTRICT PELALAWAN REGENCY RIAU PROVINCE Khoirunisyah, Khoirunisyah; Putra, Ridwan Manda; Efawani, Efawani
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.7.2.267-273

Abstract

Teluk Benderas Lake is an oxbow lake formed because the Kampar River's flow was cut off. This lake is a habitat for various types of fish. However, information on fish species in the area is still limited. To find out the kinds of fish in Teluk Benderas Lake, a study was conducted in March-May 2023 using the survey method. Fish sampling was performed once a week for two months. The fish were caught using a trawl measuring 150 m long and 4,5 m wide with 1-inch mesh size. Water quality parameters measured were temperature, brightness, depth, pH, DO, and CO2. The results showed that 1.398 fish were caught, consisting of 4 orders, 13 families, 25 genera, and 32 species. Based on the results of water quality measurements, it was concluded that Teluk Benderas Lake can still support fish life in the waters
POPULATION STRUCTURE Nerita articulata (GASTROPODA) IN THE INTERTIDAL ZONE OF TELUK LANCAR VILLAGE BENGKALIS DISTRICT RIAU PROVINCE Ramadila, Hana; Nasution, Syafruddin; Zulkifli, Zulkifli
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.7.2.274-283

Abstract

The population structure is a collection of organisms living in a particular area at a specific time and originating from the same species. The intertidal zone is between the sea's high and low tide lines, which have extreme ecological conditions. Several groups of organisms, including gastropods, can adapt to this environment. One type of gastropod that inhabits this area is Nerita articulata. This research was conducted in December 2023 in the intertidal zone of Teluk Lancar Village. The study aimed to analyze the population structure of N. articulata in the intertidal zone of Teluk Lancar Village, including population abundance, shell size frequency distribution, and distribution patterns. The research used a survey method. The intertidal zone is divided into three subzones: upper, middle, and lower. In each subzone, three quadrat plots measuring 1x1 m are placed. Environmental parameters measured include water quality, such as temperature, salinity, pH, substrate type, and organic matter. The research results indicate that the population abundance of this species varies, ranging from high to moderate to low. The highest abundance is found in the upper subzone, while the lowest is in the lower subzone. The shell sizes of this species are grouped into 3 size classes: <18.3 mm, 18.3-24.4 mm, and >24.4 mm. The largest and smallest shell sizes are commonly found in the upper subzone. The distribution pattern is uniform with a Morisita index value (Id < 1). The abundance of N. articulata among subzones differs significantly (p < 0,05), while the size among subzones does not differ significantly (p > 0,05).
EFFECT OF THE COMBINATION OF SALINITY AND WALNE FERTILIZER ON THE POPULATION GROWTH OF Nannochloropsis sp ON LABORATORY SCALE Aslam, Atthoriq Habib Harry; Nasution, Syafruddin; Nurrachmi, Irvina
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.7.2.284-291

Abstract

Activities of phytoplankton culture needed to be supported by physical and chemical parameters. This study aimed to analyze the effect of a combination of salinity and Walne fertilizer on the population growth of Nannochloropsis sp on the laboratory scale. The method used in this study is an experimental method using CRD (Completely Randomized Design) experimental design with 2 factors, namely salinity and Walne fertilizer, and each factor is given 3 levels of treatment. The level value of each factor is combined to obtain 9 combinations with 3 replications to obtain a total of 27 experimental units. The results of measuring the water quality parameters show that the media conditions were in good condition: an average temperature of 21℃, an average pH of 7.6, and the LED light used is ±2,000 lux. The results showed no significant effect of the combination of salinity and Walne fertilizer on the population growth of Nannochloropsis sp. The best combination value was obtained in the S1W1 treatment with a combination of 15 ppt salinity and 0.5 mL Walne fertilizer dose, resulting in cell population density (4125x103 cells/mL). The second best was obtained in the S1W2 combination with 15 ppt salinity and 1 mL Walne fertilizer dose (3775x103 cells/mL).
THE EFFECT OF POWDERED NONI FRUIT (Morinda citrifolia) AS A FEED SUPPLEMENT ON THE GROWTH AND SURVIVAL RATE OF SILVER BARB (Barbonymus gonionotus) Putri, Mutiara; Hidayati, Sri; Armando, Eric
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.7.2.292-298

Abstract

Silver barb is one of the fish that can be cultivated year-round due to their excellent ability to adapt to Indonesian climate. One of the problems that cultivators often face is feeding; long-term commercial feeding or pelleting will negatively impact the fish’s body. Therefore, a natural admixture of feed can become an alternative solution. This study used powdered noni fruit as a feed supplement for silver barb (Barbonymus gonionotus) because of its content of antioxidant compounds that can reduce oxidative stress due to free radicals. This study aims to determine the best practice of feeding powdered noni fruit as a feed supplement and its influences on silver barb's growth and survival rate during the fingerling phase. The study was conducted in November – December 2022 using a complete randomized design experiment consisting of four treatments and four retries. Random sampling took five fish sized 2 – 3 cm as samples. The cultivation container used in this study has a volume of 30 L, with each container containing ten samples. This study uses one-way ANOVA and is continued with a DMRT test to find the best doses of powdered noni fruit. The result shows that the best addition of noni powder was 15% of the total feed. This addition of noni powder demonstrates an increase of growth yield by 1.62 cm, absolute weight of 2.11 g, 87.5% survival rate, and feed conversion ratio of 0.0535. Moreover, the percentage of fish weight increases by 1.1% for every 1% increase in height
POTENTIAL OF VARIOUS INDONESIAN MEDICINAL PLANTS TO INHIBIT THE GROWTH OF Aeromonas hydrophila BACTERIA Kurniawan, Ronal; Windarti, Windarti; Effendi, Irwan; Putri, Mega Novia; Syahputra, Tomi; Gusriansyah, Dimas; Riswan, M
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.7.2.299-304

Abstract

Aeromonas hydrophila is a gram-negative bacterium that can infect fish and is zoonotic to humans. Efforts to prevent this bacterial infection can be made using herbal plants due to the content of secondary metabolite compounds. This study aims to explore plants that have the potential as antibacterials, especially A. hydrophila bacteria. This research was conducted in February 2024 at the Marine Biotechnology Laboratory, Faculty of Fisheries and Marine Sciences, Universitas Riau. The experimental method used included the stages of preparation of plant leaf samples and antibacterial tests using Kirby-Bauer discs. The plants used were the leaves of senduduk (Melastoma malabathricum), kantong semar (Nepenthes sp), lime (Citrus aurantifolia), belimbing bukit (Acetosella barreligeri), sirsak (Annona muricata), mucuna (Mucuna bracteata), Israel grass (Asystasia gangetica), and miana (Coleus scutellariodes). The results showed that the leaves of kantong semar, senduduk, and belimbing bukit could inhibit bacterial growth in a strong category. In contrast, the leaves of sirsak, mucuna, Israel grass, miana, and lime were classified as moderately inhibiting the growth of A. hydrophila bacteria. In conclusion, these herbal plants can potentially prevent A. hydrophila bacterial infection

Page 34 of 55 | Total Record : 543

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