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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 524 Documents
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SEDIMENT ORGANIC MATTER CONTENT AND MACROZOOBENTHOS ABUDANCE IN THE ESTUARY OF KAMBANG PESISIR SELATAN DISTRICT WEST SUMATERA Putri, Rahmi; Nedi, Syahril; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 4 No. 3 (2021): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Around the Kambang Estuary, there are fish shelters (TPI), fishing boat ports, residential areas, and mangrove ecosystems. This causes a decrease in water quality due to the increase in organic matter, which has an impact on the life of macrozoobenthos. The study conducted in February 2021 aims to analyze the organic matter content of sediments, identify the type and abundance of macrozoobenthos and the relationship between sedimentary organic matter and the abundance of macrozoobenthos. Determination of stations using purposive sampling method. This research was carried out at 4 stations with 4 sampling points. The results showed that the organic matter content found varied from 4.23 to 8.47%. The abundance of macrozoobenthos ranged from 13.89 to 38.89 ind/m2. The species of macrozoobenthos found at the study site consisted of 8 species from 3 classes of bivalves, gastropods and malacostraca. The relationship between the organic matter content in the sediment and the abundance of macrozoobenthos is obtained by the equation Y = 22.734 + 0.319X, where the coefficient of determination (R2) is 0.003 and the correlation coefficient (r) is 0.054, which is a very weak shows correlation.
COASTAL VULNERABILITY ANALYSIS IN DUMAI BARAT DISTRICT Butarbutar, Yesenia Nancy Olivia; Mubarak, Mubarak; Wibowo, Muhammad Arief
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 Coastal area is an area that is very vulnerable to the phenomenon of natural change. The coastal area's vulnerability level is influenced by geological variables, namely coastal geomorphology, sea level rise, shoreline changes, tides, and coastal elevations. This research was conducted in October 2021. This study aims to determine the level of coastal vulnerability in the Dumai Barat Sub-District, Riau Province with a quantitative descriptive method. Based on the result of the study, the coastal vulnerability index can be classified into five categories: very not vulnerable, not vulnerable, medium, high, and very high. The coastal area of Dumai Barat District is categorized as low vulnerability.
ESTIMATION OF CARBON RESERVED IN MANGROVE FOREST OF SUNGAI APIT DISTRICT, SIAK REGENCY, RIAU PROVINCE Dewi, Delviana; Efriyeldi, Efriyeldi; Amin, Bintal
Asian Journal of Aquatic Sciences Vol. 4 No. 3 (2021): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Mangrove forests can absorb and store carbon in large quantities and for a long time, so they can play a role in mitigating climate change. This research was conducted in February 2021 on the Mangrove Ecosystem in the Sungai Bersejarah Mangrove Tourism Area of ​​Kayu Ara Permai Village, aiming to identify species and analyze mangrove density, mangrove biomass and carbon content, CO2 uptake, as well as analyzing the relationship between mangrove density and biomass, carbon stock and CO2 uptake. This study uses a survey method, the measurement of mangrove biomass using the allometric equation method. The results of the highest average mangrove density, potential estimates of carbon stock and CO2 absorption are found on Transect 3 which shows an average mangrove density of 2166.66 ind/ha, mangrove carbon stock 91.9378 tons/ha and CO2 absorption of 336.5667 tons/ha. The largest soil organic carbon was found in transect 3, which was 384.15 tons/ha. Density does not have a strong relationship with biomass, mangrove carbon content and carbon sequestration. Mangrove density between transects showed a significant difference (p<0.05). Biomass, mangrove carbon and CO2 uptake between transects were not significantly different (p>0.05), while the estimated soil organic carbon stock was significantly different (p<0.05) between transects.
OPTIMIZATION OF Bacillus cereus GROWTH IN MEDIA WITH DIFFERENT CARBON SOURCES Putra, Muhammad; Feliatra, Feliatra; Effendi, Irwan
Asian Journal of Aquatic Sciences Vol. 4 No. 3 (2021): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Bacillus cereus is a probiotic bacteria that requires media as a source of nutrients for its growth. This study aims to the media used were tofu liquid waste, sago liquid waste, and molasses. The method used is an experimental method, namely testing two groups of bacterial isolates; B. cereus SN7 and the consortium (combination of five isolates from B.cereus with different strains). Each group of isolates was grown with three replications on each waste medium. bacterial growth every six hours for twenty four hours using two methods; Total Plate Count (TPC) and bacterial cell biomass. There was no significant difference in growth between the two groups of bacterial isolation. The optimal growth of each isolate was found in molasses waste. The growth between two bacterial isolates in the liquid waste media was B. cereus SN7 bacterial isolate.
ANALYSIS OF TYPES AND ABUNDANCE OF MICROPLLASTIC IN WATER AND SEDIMENT IN COASTAL WATERS OF PANDAN DISTRICT, CENTRAL TAPANULI REGENCY, NORTH SUMATRA Yani, Indah; Siregar, Yusni; Amin, Bintal
Asian Journal of Aquatic Sciences Vol. 4 No. 3 (2021): December
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 February 2021 in the coastal waters of Pandan District, Central Tapanuli Regency, North Sumatra Province. The purpose of this study was to analyze the type and abundance of microplastics in water and sediment and to determine the relationship between the abundance of microplastics in water and in sediment. The method used in this research is survey method which is carried out by observing and taking samples directly in the field and followed by laboratory analysis. Based on the results of the study, the highest abundance of microplastics in water was 706.67 particles/m³, and in sediments was 14,193.33 particles/kg. The abundance of microplastics in water and sediment did not differ significantly between stations. Simple linear regression test showed that the abundance of microplastics in water had a weak relationship with the abundance of microplastics in sediments.
COMPARISON OF MACROZOOBENTHOS COMMUNITY STRUCTURE ON SEAGRASS ECOSYSTEMS IN THE WATERS OF NIRWANA COAST AND PULAU PANJANG OF WEST SUMATRA Julians, Rizky Fajar; Nasution, Syafruddin; Nursyirwani, Nursyirwani
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

Macrozoobenthos have various roles in the ecosystem, one of which is as a biological indicator because macrozoobenthos will react to disturbances in an aquatic ecosystem. Seagrasses are breeding and sheltering grounds for marine life, one of which is macrozoobenthos. Nirwana Beach and Pulau Panjang are waters that have seagrass ecosystems in West Sumatra. The purpose of this study was to compare the community structure of macrozoobenthos in the waters of Nirwana Beach and Pulau Panjang, this research was conducted in the waters of Nirwana Beach and Pulau Panjang in June-July 2021. The method used in this study is the survey method; sampling was carried out using three plots on each transect with a size of 1m x 1m and was repeated three times on each plot. The results of this study found that the abundance value in the waters of Nirwana Beach was 20.59 ind/m2 and in the waters of Pulau Panjang 21.44 ind/m2, the diversity index (H’) in the waters of Nirwana Beach was 2.450 and in the waters of Pulau Panjang was 2.680, The uniformity index (E) in the waters of Nirwana Beach is 0.738 while in the waters of Pulau Panjang, it is 0.807 and the dominance(C) in the waters of Nirwana Beach is 0.162 and in the waters of Pulau Panjang is 0.198. The distribution pattern (Id) of macrozoobenthos at both locations is clustered with a value of 1.07 ind/m2 in the waters of Nirwana Beach and 1.13 ind/m2 in the waters of Pulau Panjang. The community similarity index was categorized as moderate with 66% at both study sites.
GASTROPOD COMMUNITY STRUCTURE IN THE INTERTIDAL ZONE OF PASUMPAHAN ISLAND, PADANG CITY, WEST SUMATRA PROVINCE Oriza, Syucitra; Tanjung, Afrizal; Elizal, Elizal
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

Pasumpahan Island is one of the islands located in West Sumatra Province which has various activities of daily life, especially in the intertidal zone; it is suspected that it can interfere with the existence of aquatic organisms one of which is gastropods. Studying the structure of gastropod communities in the intertidal zone is an interesting natural laboratory to study. This research was conducted from December 2021 to January 2022 on Pasumpahan Island Padang City West Sumatra Province. The purpose of this study was to determine the structure of the gastropod community which includes species, abundance, diversity, uniformity, dominance, and distribution pattern of gastropods. As supporting data in this study, several environmental parameters were also measured which included water quality, sediment type, and sediment organic matter content. The research method used is a survey method, where sampling using the quadrat transect method is carried out at 3 stations. Based on the results of the study found 13 species of gastropods. The most common species found at all stations was Pythia scarabaeus, where the gastropod abundance values obtained between stations ranged from 2,78 to 5,00 ind/m2. The value of the species diversity index ranged from 1,50 to 2,02, which was moderate, the uniformity index value ranged from 0,77 to 0,88, which was high uniformity, and the dominance index value ranged from 0,16 to 0,29, meaning that there were no species found dominates and the value of the distribution pattern ranges from 1,31 to 2,47 with a clustered distribution pattern.
MAPPING MARINE DEBRIS IN COASTAL AREA PADANG CITY Pradana, Hangga; Mubarak, Mubarak; Galib, Musrifin
Asian Journal of Aquatic Sciences Vol. 4 No. 3 (2021): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

This study aims to determine the distribution of types and masses of marine debris that has been carried out in July 2020 in the Coastal Coast of Padang City. The method used was a survey method. Sampling was carried out at 4 observation stations, namely Cinta Beach, Pasir Selahan Beach, and Air Manis Beach. The results showed that the types of marine debris found at the research site consisted of plastic, metal, glass, rubber, wood, cloth, and other types. The total amount of marine debris found was 1,316 pieces with a total weight of 22,047 kg. The most common type of marine debris found in plastic waste.
INTESTINE AND LIVER HISTOPATHOLOGY OF STRIPED CATFISH (Pangasianodon hypophthalmus) FEEDING CONTAINING PAPAYA LEAF FERMENTATION Purba, Yoshua Dewaman Mangapul; Syawal, Henni; Lukistyowati, Iesje
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

Aeromonas hydrophila bacteria often attack internal organs such as the liver and intestines. This research was conducted in June – August 2021 at the Laboratory of Fish Parasites and Diseases, Faculty of Fisheries and Marine, Universitas Riau. Histology preparations were made at the Bukittinggi Veterinary Center. This research aimed to obtain the best dose addition of papaya leaf fermented solution which could reduce intestinal and liver tissue damage of striped catfish (P.hypophthalmus) which was challenged with A.hydrophila. The method used is an experimental method with a completely randomized design (CRD) with 4 treatment levels and 3 replications; Kp (Feed not given papaya leaf fermented solution + infected with A.hydrophila), P1 (16 ml/kg feed of papaya leaf fermented solution + infected with A.hydrophila), P2 (16 ml/kg feed of papaya leaf fermented solution) + infected with A.hydrophila), P3 (16 ml/kg of papaya leaf fermented solution feed + infected with A. hydrophila). The fish used was 8-10 cm with a density of 1 fish/3 L totaling 10 fish with a container measuring 40x30x30 cm. Infection by injection in the intramuscular section as much as 0.1 mL/head with a bacterial density of 108 CFU/mL. The parameters observed were clinical symptoms for 72 hours and histopathology of the intestine and liver of striped catfish. The results showed that the intestine saw the presence of hemorrhage, necrosis, and edema. While the liver shows abnormalities, such as hemorrhage, necrosis, hypertrophy, and fatty degeneration.
ANALYSIS OF CARBON STOCK IN SEAGRASS Cymodocea rotundata IN TUAPEJAT WATERS, MENTAWAI ISLAND DISTRICT Oktari, Mela; 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 January 2022. Seagrass density calculations and seagrass sampling were carried out in Dusun Jati, Tuapejat, Sipora Utara District, Mentawai Islands Regency, and seagrass sample analysis was carried out at the Marine Chemistry Laboratory, Faculty of Fisheries and Marine, Universitas Riau. The objective of the study is to analyze the density of seagrass C. rotundata, analyze the biomass and carbon stock stored in Agb and Bgb parts, and whether there are differences in density, biomass, and carbon stock between stations in seagrass C. rotundata at the research site. The density value of seagrass C.rotundata varies for each station. The average density of seagrass C. rotundata at the study site was 33.48 stands/m2. The range of the biomass value in the Agb section is 21.78-39.9 gbk/m2 while the Bgb section is 31.01-61.4 gbk/m2. The average value of the carbon stock stored in the Agb section is around 2.08-5.34 gC/m2 and the Bgb section is 10.81-15.48 gC/m2. The conclusion from this research is that the density of seagrass at the research location is infrequently and each station has a different density. The highest biomass is found at a greater density as well as the carbon stock. Biomass between stations was not significantly different while the Agb and Bgb parts were significantly different. Density, biomass, and carbon stock have a very strong relationship.

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