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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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THE EFFECT OF DIFFERENT WATER LEVELS ON THE GROWTH AND SURVIVAL RATE OF CACHAMA (Colossoma macropomum) LARVAE Romansah, Danang Prasetyo; Aryani, Netti; Nuraini, Nuraini
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The study was conducted from March to May 2022 at the Fish Hatchery and Breeding Laboratory of the Fishery and Marine Science Faculty, Universitas Riau. This research aimed to determine the effect of the best water level on the growth and survival rate of cachama larvae (Colossoma macropomum). This study used a factorial completely randomized design (CRD) with four treatments and three replications. The treatments used were P1 = water level 5cm, P2 = water level 10cm, P3 = water level 15cm, and P4 = water level 20cm. Larvae were reared for 40 days with a stocking density of 2 fish/L. Different water levels showed a significant effect on the growth of absolute weight, absolute length, and specific growth rate of cachama larvae and no effect on the survival of cachama larvae (p<0.05). The best treatment was at a water level of 5 cm, with absolute growth of 1.73 g, absolute length of 4.59 cm, specific growth rate (SGR) of 17.16%/day, and survival rate of 91.11%. Water quality parameters during the study were temperature ranging from 26.7-28.4℃, pH 6.0-6.9, and dissolved oxygen ranging from 5.2-5.9 mg/L.
PREVALENCE AND INTENSITY OF ECTOPARASITES IN GOLDFISH (Carassius auratus) AT MAJU MAPAN FARM, MAGELANG REGENCY Qomariyah, Destya Nurul; Sari, Annisa Novita; Mujtahidah, Tholibah
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Goldfish (Carassius auratus) at Maju Mapan Farm is one of the leading ornamental fish commodities with a high mortality rate due to disease. For this reason, this research aims to know about the type, prevalence, and intensity of ectoparasites at Maju Mapan Farm. The method in this research was random sampling for fish sampling 30 fish/pond. The type of parasites, prevalence, and intensity were analyzed descriptively and described in figures, tables, or graphs. This observation and identification showed that ectoparasites infected by goldfish at Maju Mapan Farm consisted of 3 types: Trichodina sp, Dactylogyrus sp, and Gyrodactylus sp. The types of ectoparasites that dominated both were Trichodina sp (96.11%), Dactylogyrus sp (3.61%), and Gyrodactylus sp (0.28%). Prevalence of ectoparasites was Trichodina sp (83.33%), Dactylogyrus sp (43.33%), and Gyrodactylus sp (6.67%). The intensity of ectoparasites were Trichodina sp (129 ind/fish), Dactylogyrus sp. (9 ind/fish), and Gyrodactylus sp (4 ind/fish). Trichodina sp. and Gyrodactylus sp. were commonly found in mucus, while Dactylogyrus sp. only infected goldfish in the gill organ. Prevalence and intensity of ectoparasites were found in goldfish with medium-stage infection at Maju Mapan Farm. The result of measuring water quality parameters was not optimal, causing ectoparasites to infect and multiply rapidly in goldfish at Maju Mapan Farm.
PROFILE ERYTHROCYTES OF Oreochromis niloticus FED WITH HERBS FERMENTED AND INFECTED WITH Aeromonas hydrophila Nurfitri, Maya; Syawal, Henni; Lukistyowati, Iesje; Riauwaty, Morina
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Herbs Fermented consist of Kaempferia galanga L, Curcuma xanthorrhiza Roxb, and Curcuma domestica Val, which are environmentally friendly disease prevention alternatives that can be added to feed because they have several advantages, such as increasing appetite, digestion, growth, disease resistance, and reducing stress levels in fish. This research was carried out from August to December 2021 at the Marine Science Biotechnology Laboratory and Fish Parasites and Diseases Laboratory, Faculty of Fisheries and Marine, Universitas Riau. This study aimed to obtain the best dose from adding fermented herbs to increase the immune system of Oreochromis niloticus and prevent diseases caused by Aeromonas hydrophila bacteria in terms of profile erythrocytes. The method used was an experimental method using a Completely Randomized Design (CRD) with one factor, five levels of treatment, and three replications so that 15 experimental units were obtained. The challenge test was carried out on the 32nd day using A.hydrophila with a density of 108 CFU/mL. The best dose was found in P3 with a dose of 200 mL/kg of feed, which showed a total erythrocyte of 2.09x106 cells/mm3, hemoglobin level of 7.70 g/dL, hematocrit value of 37.70%, and a normal erythrocyte morphology. Water quality ranged from temperature 27-29oC, pH 6.9-7.2, DO 3.1-4.4 mg/L, and Ammonia 0.016-0.024 mg/L. Based on the data obtained, it can be concluded that fermented herbs can increase the immunity of O. niloticus to diseases caused by A.hydrophila.
THE EFFECT OF ADDING DIFFERENT TYPES OF PROBIOTICS IN FISH FEED ON THE GROWTH AND SURVIVAL RATE OF CARP (Cyprinus carpio) Djulia, Sirda; Juliana, Juliana; Sutianto, Sutianto
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): 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 aimed to determine the effect of giving different types of probiotics in fish feed on carp's growth and survival rate (Cyprinus carpio). It was an experimental study with a completely randomized design that included four treatments and three replications. The treatment was divided into (A) 0 mL/kg addition of probiotics, (B) 10 mL/kg addition of probiotics, (C) 15 mL/kg addition of probiotics, and (D) 3 mL/kg addition of probiotics. The stocking density was 20 fish/aquarium, and the feeding frequency was three times per day. This study showed that adding different types of probiotics had a significant effect (p<0.05) on length growth, weight growth, and survival rate of carp. The best results for getting the highest length growth were obtained in treatment B with a value of 1,96 cm, and the highest increase in weight growth was also obtained in treatment B with a value of 1,49 g. Moreover, the highest survival rate observed was also obtained in treatment B, with a percentage of 85%.
CULTIVATION OF SEAWEED Caulerpa racemosa USING DIFFERENT SUBSTRATES ON A LABORATORY SCALE Jayusri, Jayusri; Cokrowati, Nunik; Diniarti, Nanda
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Caulepa racemosa is a type of sea grape from the group of green algae (Chlorophyceae) that can be found in Indonesian waters. Coastal communities use this species as a source of daily food. Besides being a food ingredient, C. racemosa can be used for medical purposes because it contains antioxidants. The distribution of C. racemosa and its density in waters depends on the type of substrate and season. The substrate in the cultivation container is an essential factor in cultivating C. racemosa. Various substrates have different characteristics and influence the growth of C. racemosa. This research aims to analyze the best substrate for the survival of seaweed on a laboratory scale. This research used an experimental method using a Completely Randomized Design (CRD) consisting of 4 treatments, namely different substrates of sand, coral, volcanic rock, and coral sand. The results of this research are that different types of substrates have a real influence on the survival rate of C. racemosa cultivated on a laboratory scale. Sand substrate gave the best results: a survival rate of 112.83%, a final weight of 22.56 g, and the highest antioxidant content on volcanic rock substrate of 83.19%. This research concludes that differences in substrate directly influence the survival rate and final weight of C.racemosa. The substrate that provided the best survival rate of 112.83% was sand substrate.
ANALYSIS OF COASTAL WATER QUALITY AT MARINE TOURISM SITES IN THE CITY OF SIBOLGA Sihombing, Kelvin; Harahap, R. Hamdani; Mulya, Miswar Budi
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Sibolga is one of the cities in North Sumatra Province that has outstanding marine tourism destinations, some of which include Pelabuhan Lama (Anggar) Beach and Ujung Sibolga Beach. This research aims to analyze the coastal water quality of marine tourism objects in Sibolga City. This research was conducted from March to July 2023 at Pelabuhan Lama (Anggar) and Ujung Sibolga Beach. Water quality assessment is carried out using the STORET method. Pelabuhan Lama (Anggar) Beach obtained a total score of -18, and Ujung Sibolga Beach received a total score of -26. The total scores for both tourist sites fall into class C with a moderate pollution category.
TYPES AND ABUNDANCE OF MARINE DEBRIS IN THE NORTH COASTAL REGION OF BENGKALIS ISLAND, RIAU Sianturi, Desi Deria; Amin, Bintal; Zulkifli, Zulkifli
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Marine debris is a threat that is currently the biggest problem in the world due to the impact that trash can have on the survival of aquatic biota. This research was conducted to analyze the type and abundance and differences in the abundance of marine debris found in the northern coastal area of Bengkalis Island, Riau Province, which is assumed to be a location with the potential for accumulation of waste that could threaten the life of biota in the waters. The method used is the survey method, namely collecting data, documentation, and observation. Waste collection is carried out at three stations by determining the research location along 100 m and dividing each 20 m so there are five transects. Then, on each transect, a plot with a size of 5x5 m was made. Then, collect every type of waste contained in the plot. The results showed that plastic waste was the most common type (62%), while wood was the least found (1%). The abundance of waste on weekends is higher than on weekdays. The difference in the abundance of waste between stations was not significantly different, while the difference between the abundance of time (weekdays and weekends) was significantly different.
THE RELATIONSHIP OF MACROZOOBENTHOS ABUNDANCE WITH OIL AND METAL CONCENTRATIONS IN SEDIMENTS AROUND COASTAL WATERS INDUSTRIAL AREA OIL CITY OF DUMAI RIAU Amiroh, Amiroh; Badrun, Yeeri; Retnawaty, Sri Fitria
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Some studies say the pollution level in the waters oil industry in Dumai City, Riau. The level of pollution that occurs will affect the abundance of macrozoobenthos. This research aims to know the concentration of oil and heavy metals in sediments in the waters around the area of the Dumai City oil industry, knowing the effect of oil on the abundance of macrozoobenthos. This research method includes placement of research stations, observation and sampling, TSS sample analysis method, concentration oil in sediment samples, heavy metal concentrations of Pb, Cd, and Cu at sediment samples, macrozoobenthos abundance Analysis, and data analysis. Results research average concentration of oil in sediments in water areas The oil industry of Dumai City, Riau, has passed the threshold that has been set determined by the Department of Water Resources Quality Assurance/Quality Control Program That is > 1000 ppm, so it can be said that station 1 up to 9 are polluted and harmful to organisms that live on the bottom those waters relationship of oil concentration, heavy metals (Pb, Cd, and Cu) moderate to weak.
TYPES AND ABUNDANCE OF MARINE DEBRIS IN THE CORAL REEF ECOSYSTEM OF PASUMPAHAN ISLAND, WEST SUMATRA Hanifah, Lulu Lyana; Amin, Bintal; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Debris has long been a worrying problem, especially in the marine environment. Human activities and marine tourism activities cause coral reef ecosystem damage. The research was carried out in June - September 2022 to determine the type and abundance of marine debris, lifeforms, and condition of coral cover, as well as the relationship between the abundance of marine debris and coral cover on Pasumpahan Island, West Sumatra. The research method used was a survey, and the data obtained was analyzed descriptively. The research location was divided into three observation stations by placing three transects at each station. Based on the research results, six types of marine waste were found, with abundance ranging from 0.01 to 0.085 units/m2. The coral lifeforms found are Acropora branching, Acropora encrusting, Acropora submassive, Coral encrusting, Coral foliose, Coral millepora, Coral mushroom, and Coral massive, with a percentage of live coral cover ranging from 1.00-36.48%. A strong negative relationship exists between the abundance of marine debris and the percentage of coral cover in Pasumpahan Island, West Sumatra
THE EFFECT OF ADDING PETROFISH PROBIOTICS TO FEED AT DIFFERENT DOSES ON THE GROWTH AND SURVIVAL OF BARRAMUNDI (Lates calcarifer) JUVENILES Relita, Relita; Juliana, Juliana; Tuiyo, Rully
Asian Journal of Aquatic Sciences Vol. 6 No. 3 (2023): 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 aimed to determine the effect of adding Petrofish probiotics to feed at different doses on the growth and survival of barramundi (Lates calcarifer) juveniles. The research utilized an experimental method with 120 barramundi juveniles as test subjects, distributed into treatments A (Control), B 10mL/kg dosage), C (15mL/kg dosage), and D (20mL/kg dosage). The study was conducted for 30 days, using 12 buckets containing ten barramundi juveniles. The research employed a Completely Randomized Design (CRD) with Analysis of Variance (ANOVA), followed by Least Significant Difference (LSD) post hoc tests. The results indicated significant effects for each treatment. The highest absolute weight and length were observed in treatment D at 0.90 g and 0.73 cm, followed by treatment C at 0.77 g and 0.67 cm, treatment B at 0.69 g and 0.62 cm, and the lowest values were in treatment A at 9.51 g and 0.58 cm.

Page 39 of 55 | Total Record : 543

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