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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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IMPLEMENTATION OF CONSORTIUM BACTERIES OF Bacillus cereus ISOLATED FROM SEA AS PROTEIN SOURCE FOR PRO COFFEE BEVERAGE Zevira, Bella Permata; Feliatra, Feli; Batubara, Ummi Mardhiah
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.378-385

Abstract

Pro coffee is a fermented beverage using Bacillus cereus bacterial consortium with single-cell protein. This study aims to determine the best composition of the B. cereus consortium bacteria mixture in organoleptic aspects that panelists most prefer and the effect of adding B. cereus consortium bacteria on proximate analysis and pro coffee flavor. Organoleptic testing of probiotic coffee was conducted on 20 panelists, then continued with proximate analysis of pro coffee. The composition with the best organoleptic flavor is obtained in code D, with the treatment of adding 5% bacterial consortium B. cereus for 15 days. The analysis of taste obtained has a value of 0.000 <0.05, and the study results show that the significance value is smaller than the significance level. Hence, the treatment results give the effect of adding bacterial consortium to pro-coffee. The addition of bacterial consortium B. cereus to probiotic coffee, in the form of moisture, ash, protein, fat, and carbohydrate content, is 0.000 <0.05. The analysis results show that the significance value is greater than the significance level, so the treatment results do not give the effect of adding bacterial consortium to pro coffee
RELATIONSHIP BETWEEN CORAL REEF COVER CONDITION AND MEGABENTHOS ABUNDANCE IN PASUMPAHAN ISLAND, WEST SUMATRA Manik, Pilipus Fiter; Thamrin, Thamrin; Mubarak, Mubarak
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.386-390

Abstract

This study analyzes live coral cover, megabenthos abundance, and the relationship between coral reef condition and megabenthos abundance in Pasumpahan Island waters. The survey method was used to collect primary and secondary data. The results showed that the average percentage of live coral reef cover in Pasumpahan Island, West Sumatra, was 33.31%. The abundance of megabenthos obtained was 10,000 ind/ha. Regression results showed a strong positive correlation between coral reef cover and megabenthos abundance, with an R2 value of 0.5396, meaning that the percentage of live coral affects megabenthos by 53.96%.
CHARACTERIZATION OF COCOA FUNCTIONAL DRINK PREPARATION FORTIFIED Chlorella vulgaris Vattaah, Atiqah Nurul; Iriani, Dian; Sari, N. Ira
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.391-397

Abstract

The cocoa drink is a beverage derived from processed cocoa beans. The antioxidant content of cocoa can be used as a basis for cocoa beverage development. One form of diversification of processed cocoa products is made drinks with Chlorella vulgaris fortification, which is rich in nutrients. This study aims to determine the effect of Chlorella vulgaris powder fortification on the quality characteristics of cocoa preparations and determine the best concentration for making cocoa drinks. The research method was experimental, using a factorial Completely Randomized Design (CRD) consisting of 4 different levels of formula concentration treatment, namely cocoa drink processing without Chlorella vulgaris powder fortification (KC0), 10% Chlorella vulgaris powder fortification (KC1), 15% Chlorella vulgaris powder fortification (KC2) and 20% Chlorella vulgaris powder fortification (KC3). The research parameters observed were characteristics of appearance, odor, flavor, and texture in hedonic testing, proximate composition (moisture, fat, protein, ash, carbohydrate content), solubility, antioxidant activity, and total phenolic testing. Based on the results showed that cocoa drink with 15% Chlorella vulgaris powder fortification (KC2) is the best concentration with organoleptic characteristics such as blackish brown cocoa drink, slightly fragrant chocolate odor typical of Chlorella vulgaris and cocoa, a slightly bitter taste, typical of Chlorella vulgaris and a slightly thick texture. The proximate composition is 3.18% moisture content, 11.10% fat, 7.95% protein, 3.86% ash and 73.92% carbohydrate. Meanwhile, the solubility is 67.69%, antioxidant activity is 177.92 mg/L, and phenolic content is 1.14 μg/mL. Therefore, this cocoa drink can be used as a functional drink
TENTACLE COMPONENTS (NEMATOCYSTS AND ZOOXANTHELLA) OF Montipora danae in MARAK ISLAND, WEST SUMATERA Lieng, Lieng; Zamani, Nevianty P; Bengen, Dietriech Geoffrey; Naulita, Yuli
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.398-404

Abstract

Coral animals have tentacles in which there are Nematocysts in the ectoderm layer and zooxanthella in the endoderm layer, and these two components have a role as a defense and food source; this study was conducted to identify the components of Montipora danae coral tentacles. The research was conducted in Marak Island, West Sumatra, with a purposive sampling method based on the presence of M.danae. The coral samples were decalcified to separate the tissue from the skeleton. The results of this study indicate that M.danae consists of Nematocysts type sH (small Holotrich), MpM-I (Microbasic p-Mastighopore I), and H (Holotrich). Holotrich has the highest relative abundance of 74-91%, MpM-I has 3,92-20,63% and sH has 3-24%. Holotrich has larger morphometrics than sH and MpM-I, namely 72,76-82,35 μm capsule length and 19,55-24 μm capsule width. The zooxanthella density of M. danae was lower than that of normal corals at 624 cells/cm2.
ESTIMATION OF THE SUSTAINABLE POTENTIAL OF FOURFINGER THREADFIN (Eleutheronema tetradactylum) IN THE WATERS OF TANJUNG JABUNG BARAT, JAMBI Kurniawan, Ari; Yunita, Lauura Hermala; Vitaloka, Maya; Soliansyah, Rd. M. Irgi
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.405-411

Abstract

One of the fisheries catches in Tanjung Jabung Barat is Fourfinger threadfin (Eleutheronema tetradactylum). Fourfinger threadfin is a commodity with a high economic value and has good taste, so many people catch it. Fourfinger threadfin is carried out continuously without considering the potential of the fish. If this continues to be done, it will cause a decrease in population. This research was conducted in August-October 2024. Secondary data on the results of the capture obtained from this study are data derived from the Tanjung Jabung Barat Fisheries Service from 2018 - 2022, including catches and efforts to catch Fourfinger threadfin. The data that was obtained was analyzed using Microsoft Excel. This research shows that the catch of Fourfinger threadfin in Tanjung Jabung Barat fluctuates every year. The highest CPUE value occurred in 2020, namely 3.688028, and the lowest was in 2021 at 1.28533. CMSY results and Optimum Effort of 727.4554 tons/year with Optimum Effort (Eopt) of 310,280 trips/year. With a Total Allowable Catch of 581.9643244. based on the data analysis that has been done, it can be concluded that the sustainable potential of Fourfinger threadfin in the waters of Tanjung Jabung Barat has not experienced overfishing. However, if there is an increase in fishing effort (trip), then the sustainable potential can be experienced in overfishing.
SUSTAINABILITY OF VANAME SHRIMP (Litopenaeus vannamei) FARMING IN BANTAN DISTRICT BENGKALIS REGENCY, RIAU Hutasuhut, Wilda Rizkiyah; Hendrik, Hendrik; Arief, Hazmi
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.412-421

Abstract

Bantan district is one of the districts on the coast of Bengkalis Regency, which has great potential to contribute to vaname shrimp production through intensive technology pond-based farming activities. This study aims to assess the sustainability status of vaname shrimp farming in the Bantan District. The data processing and data analysis were performed using Multi-Dimensional Scaling (MDS); the ordination process is performed using the ordination technique called Rapid Appraisal for Shrimp Farm (Rap-SF), which is a modification of Rap-FISH Rapid Appraisal for fisheries (Rapfish) using five dimensions namely ecological, economic, social, institutional, and technological. The research results show the sustainability index of the ecological dimension with a value of 47.27 (less sustainable), the economic dimension with a value of 59.55 (quite sustainable), the social dimension 52.88 (quite sustainable), the institutional dimension 47.10 (less sustainable) and the technological dimension 63.35 (quite sustainable). Technological and economic dimensions have a considerable influence on the sustainability of vaname shrimp farming in the Bantan District
INTERANNUAL VARIABILITY OF SEA LEVEL ANOMALY (SLA) IN THE WESTERN SUMATRA COASTAL WATERS DRIVEN BY ENSO AND IOD MODULATIONS Azuga, Nabila Afifah; Habibullah, Ahmad Dhuha
Asian Journal of Aquatic Sciences Vol. 7 No. 3 (2024): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.7.3.422-431

Abstract

This study aims to investigate the interannual variability of Sea Level Anomaly (SLA) along the western coast of Sumatra waters, focusing on the influences of the El Niño-Southern Oscillation (ENSO) and the Indian Ocean Dipole (IOD) in modulating SLA patterns. Using 31 years (1993-2023) of a gridded dataset from Copernicus Marine Service (CMS) and climate indices as the reference, the interplay between SLA and climate modes (ENSO and IOD) was determined through lag/lead correlation and spatial distribution analysis. The analysis shows a clear inversive relationship between ENSO and SLA, with a one-month delayed negative correlation (r= -0.41), indicating that SLA increases during the La Niña phase due to shifting in atmospheric and oceanic conditions. Similarly, SLA exhibits a negative correlation with DMI (r= -0.46) without any lag, suggesting a rapid response of SLA to IOD. Spatial analysis further demonstrates that ENSO and IOD most strongly influence SLA along Sumatra’s coast within the first 1–3 months. These findings reveal that ENSO and IOD modulate SLA variability with distinct spatiotemporal characteristics, providing crucial insights for understanding coastal dynamics and enhancing mitigation strategy for sea level-related disasters in the western coastal region of Sumatra
EFFECTIVENESS OF Daphnia sp ENRICHMENT WITH DIFFERENT LEVELS OF Spirulina platensis FLOUR ON COLOR BRIGHTNESS AND GROWTH OF KOI CARP (Cyprinus rubrofuscus) Buhang, Dela Puspita; Juliana, Juliana; Mulis, Mulis
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.7.2.169-176

Abstract

Koi (Cyprinus rubrofuscus) is one of the freshwater fish farming commodities that has an attractive color. Cultivators are trying to improve the quality of the color of this fish by adding a source of pigment. One is Spirulina, a source of natural pigments added to feed. Spirulina platensis has a content of B-carotene (28%) and Zeaxanthin (17%). This study aims to enrich Daphnia sp by using S.platensis flour to increase koi fish's color brightness and growth. This research was carried out for ±40 days at the Tatelu Freshwater Aquaculture Fisheries Center (BPBAT) Tatelu. The research method is experimental by applying a Complete Random Design (CRD) consisting of four treatments and three replicates. Treatment A (Control), B (3 g/L), C (5 g/L), D (7 g/L) S.platensis flour. The test fish used were 96 koi carp seeds with a length of 57 mm and a body weight of 5.47 g. The containers used are 12 aquariums measuring 30×40×40 cm3 with a volume of 48 L and fish stocking density of 8 fish. The data analysis used was Analysis of Variance, and a further test of the Smallest Real Difference (BNT) was carried out using the SPSS version 26.0 application. The results showed that the application of Daphnia sp enriched with S.platensis flour could have a real effect on the color brightness and specific growth rate of koi carp (p<0.05). The best treatment in this study was the administration of S.platensis flour as much as 7 g/L.
ANALYSIS OF THE CONDITION AND AREA OF CORAL REEF COVER IN THE WATERS OF PANDAN ISLAND, WEST SUMATRA PROVINCE Clara, Dina Harven; Thamrin, Thamrin; 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.7.2.177-182

Abstract

This research was carried out in January 2024 in the Pandan Island Conservation Area, Padang City, West Sumatra Province. The aim was to determine the condition and the extent of coral reef cover in this area. The method used in this research is a survey method with quantitative analysis using coral reef observation data. Data was collected at three stations using the UPT (Underwater Photo Transect) method, namely by diving using Scuba diving equipment and taking underwater photos using a digital camera. The percentage of coral reef cover at the three stations includes Station I (Pandan Island to the south), which has a coral cover of 67.60% categorized as good, and Station II (Pandan Island to the east), which has a cover of 69.07%, which is classified as good. Station III (Pandan Island to the north) has a cover of 63.04%, categorized as good. The types of growth of living coral reefs (life form) found at Station I are dominated by Coral Foliose (CF) at 44.13%, at Station II, it is dominated by Coral Foliose (CF) at 38.13%, and Coral Encrusting (CE) amounting to 14.73%. In comparison, Station III was dominated by Coral Encrusting (CE), amounting to 20.86%, and Coral Massive (CM), amounting to 15.90%. Based on the image classification results, it can be concluded that the area of ​​living coral reefs in the research area is 14.65 ha.
POPULATION STRUCTURE OF THE Meretrix meretrix IN THE INTERTIDAL ZONE OF SRI TANJUNG VILLAGE RUPAT SUB-DISTRICT BENGKALIS DISTRICT Khoiriyah, Latifatul; Tanjung, Afrizal; 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.7.2.183-191

Abstract

This study aims to determine the population structure of Meretrix meretrix in the intertidal zone in Sri Tanjung Village, including abundance, distribution patterns, and size distribution. This research was conducted in February 2024 in Sri Tanjung Village, Rupat District, Bengkalis Regency. The research method used was the survey method. M. meretrix is one of the biota that lives in tidal areas where the subzone that experiences tides is divided into 3 (three) subzones (upper, middle, and lower). The research site is divided into two research stations. Each station is divided into 3 (three) transects, each consisting of 3 (three) plots with a size of 1 x 1 m². Environmental parameters include temperature, salinity, pH, substrate type, and organic matter. The results showed that the highest abundance was found in the Lower subzone at station I, with an average abundance of 8.66 ind/m2, and at station II, with an average abundance of 4.33 ind/m2. In comparison, the lowest abundance is found in the upper subzone at station I with an average value of 3 ind/m2, and the lowest abundance at station II with an average of 1 ind/m2. The size distribution of M. meretrix at station 1 obtained seven classes, with the highest number of individuals in the 3rd class (2.33 - 2.92 cm), while at station 2, there were six classes where the highest number of individuals was in the 3rd class (1.47 - 1.81 cm). The distribution pattern of M. meretrix found is random and uniform. The analysis results of M. meretrix abundance between stations and M. meretrix abundance between intertidal subzones differed significantly.

Page 32 of 55 | Total Record : 543

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