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Nur Arifin
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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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ANALYSIS OF MANGROVE FOREST ECOSYSTEM SUPPORT CAPACITY FOR DEVELOPMENT ECOTOURISM IN ANAK SETATAH VILLAGE, KEPULAUAN MERANTI REGENCY Romida, Zuwita; Yoswaty, Dessy; Warningsih, Trisla
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

Islands Regency, Riau Province. This study aimed to analyze the carrying capacity of mangrove forest ecosystems, the level of participation, and the perceptions of local communities towards developing mangrove ecotourism in Anak Setatah Village. The method used in this research is the survey method, which is data collection by interview. The data collected consists of primary and secondary data. Preliminary data includes water quality measurement data, carrying capacity (area measurement, length of visit time, physical data of the area), general condition of the research location, questionnaires, and documentation. Secondary data came from journals on mangrove ecotourism potential. Then, the sampling of respondents was determined/selected purposively (purposive sampling). The results showed that the Anak Setatah Village mangrove ecotourism area had several activities: tracking, sitting, photography, and education. The calculation results of the area's carrying capacity in the mangrove ecotourism of Anak Setatah Village are 168 people/day. This means that the maximum number of visitors allowed to do tourist activities in mangrove ecotourism is 168 visitors per day, with the time provided by the manager for traveling being 12 hours. The perception of the Anak Setatah Village community shows promising results, with the IPR category strongly agreeing, and the mean count category is classified into a high category.
HAEMATOLOGY OF SALINE TILAPIA (Oreochromis niloticus) FED WITH MORINGA LEAF POWDER ENRICHED PELLETS Afifah, Nida Farah; Windarti, Windarti; Sarumaha, Herman
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

Moringa leaves (Moringa oleifera) contain flavonoids and saponins that can help improve fish health. Fish health and immune conditions can be predicted based on fish haematology. The study aimed to determine the effects of powder addition of Moringa leaves in fish feed pellets on the haematological disorders of saline tilapia. It was carried out from July to August 2022. Moringa leaf flour was mixed well with pelleted feed, and the dose of Moringa leaf flour was as follows: 0 (Control, without the addition of Moringa leaves), P1 (10 g/kg), P2 (15 g/kg), and P3 (20 g/kg). Fish were stored in round plastic containers (25 L, equipped with an aerator and circulation pump) for 42 days, 15 fish/container. During the study, fish were fed three times/day at satiation. Sampling was carried out twice, namely before treatment and at the end of the experiment (day 42). The results showed that adding Moringa leaf flour to fish feed pellets affected fish haematology. Fish fed with turmeric-enriched pellets showed a higher percentage of lymphocytes, increasing the fish's immunity. The best treatment was P2, which showed 81.66% lymphocytes, 7.11% monocytes, 8.66% neutrophils, and 2.55% thrombocytes. Data obtained showed that fish fed with Moringa leaf pellets had better haematological conditions than fish not fed with Moringa leaf pellets.
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.
ANALYSIS OF Escherichia coli BACTERIA CONTENT IN FISH MEAT WITH VITEK 2 COMPACT Pramita Wally
Asian Journal of Aquatic Sciences Vol 5 No 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.5.3.335-341

Abstract

Transmission of Escherichia coli in food can occur through contact with infected workers, as well as tools and materials used during food processing. One way to determine the presence of E.coli in processed fish balls is to perform a bacteriological test. The purpose of this study was to detect the presence or absence of bacteria in fish balls so that it can be seen whether these meatballs are in the hygienic category and are suitable for consumption or not. This type of research is a laboratory experiment. This research was conducted at the Maluku Provincial Health Laboratory on 26-28 January 2022. The sample used in this study was fish balls taken by purposive sampling (taken according to research needs) for laboratory testing. Based on the results above, it shows that the E.coli bacteria found in the meatball samples during the phenotyping test with Vitek 2 compact both at a dilution of 10-1 to 10-3 were not identified because they had not passed the maximum limit. Based on the results obtained, it was found that the fish balls made by service participants in Mamala country were still in accordance with the criteria of the Indonesian National Standard (SNI) No.7388:2009 regarding the maximum limit of E.coli bacterial contamination in processed meat products made by the government for the protection of consumers regarding the quality of the product in circulation and declared to meet the requirements for the maximum threshold of microbial contamination in food if the value is 3/g for the status fit for consumption. The condition of the value of the test results of the fish balls sample under study is due to the fact that food makers or processors when processing fish balls still use the correct sanitation and hygiene principles and according to procedures
KIDNEY AND LIVER HISTOPATHOLOGY OF STRIPED CATFISH (Pangasianodon hypophthalmus) INFECTED WITH Edwardsiella tarda Melin Siburian; Henni Syawal; Morina Riauwaty Siregar
Asian Journal of Aquatic Sciences Vol 5 No 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/ajoas.5.3.421-428

Abstract

This research was conducted in April – June 2021in the Laboratory of Parasites and Fish Diseases, Faculty of Fisheries and Marine, Universitas Riau. Histological preparations were carried out at the Bukittinggi Veterinary Center (BVet). The aim of this study was to analyze the kidney structure of striped catfish (P.hypophthalmus) infected with Edwardsiella tarda with different bacterial densities. The benefit of this research is to provide information about changes in the structure of kidney tissue due to infection with E.tarda, so that later treatment solutions can be sought. The method used was an experimental method with a completely randomized design (CRD) consisting of 4 treatment levels and 3 replications. The treatments applied were P0 (fish not infected with E.tarda), P1 (fish infected with E.tarda at a density of 106 CFU/mL), P2 (107 CFU/mL), and P3 (108 CFU/mL). Striped catfish (P.hypophthalmus) used are 8-12 cm in size with a density of 1 fish/3 L. Infection is done by injection in the intraperitoneal as much as 0.1 mL/fish. The results of the study found that clinical symptoms caused by dull and protruding eyes, dull body surface color, flaky fins, body surface wounds, and bleeding. In histopathological observation, the kidneys with different bacterial densities experienced the highest damage at P3 (108 CFU/mL), namely necrosis, hemorrhage, and hypertrophy.
GROWTH RATE OF Nannochloropsis sp ACCORDING TO ADDITING CONCENTRATION OF ZINC (ZN) AND COOPER (CU) Sagala, Herlina Meria Uli; Pattirane, Chrisoetanto P; Sewiko, Roni; Wulandari, Ully; Sulistyowati, Beta Indi
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Zinc and copper are micronutrients that are the factors that support microalgae growth rate besides macronutrients, CO2, temperature, salinity, and pH. Growth of Nannochlopsis sp was observed to determine the influence of the addition of Zn and Cu concentration. Microalgae cultivation was located outdoors on the semi-mass scale using 800 L medium on mesophilic condition in 3 treatments with the addition of 1 ppm, 3 ppm, and 5 ppm concentrations of Zn and Cu metals. Cells density was calculated using a hemocytometer, and the absorbed metal content was measured by AAS. The study aimed to test the growth response of Nannochloropsis sp cells to Zn and Cu metals. The growth rate of microalgae was observed for the addition of Zn and Cu concentration in the cultivation medium. The result showed the highest Nannochloropsis sp growth rate for Zn addition was 0.053/day and for Cu addition was 0.279/day. Between Zn and Cu addition, the highest growth rate was observed in the addition of 1 ppm Cu metal (Cu1) which was equal to 0.279/day. This shows that adding micronutrients are not automatically will increase the growth rate of microalgae as well.
THE USE OF DRONE AND VISIBLE ATMOSPHERICALLY RESISTANT INDEX (VARI) ALGORITHM IMPLEMENTATION IN MANGROVE ECOSYSTEM HEALTH’S MONITORING Sewiko, Roni; Sagala, Herlina Meria Uli
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Operational limitations are the main problem in monitoring 3.31 million hectares of mangrove forest areas throughout Indonesia. However, with the disruption of technology, there are currently many approaches and methods that can be adapted to answer these problems. One of them is drone technology. This technology can be utilized in high-resolution rapid mapping for limited areas. The output from the data acquired by the drone can be analyzed for various purposes, including assessing the health condition of the vegetation. In this study, the results of the acquisition of unmanned aircraft on mangrove vegetation are used to determine the health level of vegetation in mangrove conservation areas. The research was conducted on 46 hectares of mangrove conservation area. The acquisition process was divided into four flying missions with a flight height of 150 m, 80% patching, and using the Hasselblad L1D-20c camera with a 1-inch sensor. The acquisition results are processed using the online photogrammetry method through the cloud-based photogrammetry service from DroneDeploy. Processing uses standard mode, where this mode is designed to produce good image quality with a relatively fast processing time. The acquisition results of 1614 photos were 100% successfully aligned, with 3.50 cm/px GSD resolution. Based on the application of the VARI algorithm to the resulting orthophoto, it is known that 30.2692% of the AOI is an area and/or dead or non-vegetated vegetation. Then 59.3887% is vegetation in an unhealthy condition, 10.3405% is considered as vegetation in healthy condition, and 0.0015% is vegetation in very healthy condition.
ANALYSIS OF Escherichia coli BACTERIA CONTENT IN FISH MEAT WITH VITEK 2 COMPACT Wally, Pramita
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Transmission of Escherichia coli in food can occur through contact with infected workers, as well as tools and materials used during food processing. One way to determine the presence of E.coli in processed fish balls is to perform a bacteriological test. The purpose of this study was to detect the presence or absence of bacteria in fish balls so that it can be seen whether these meatballs are in the hygienic category and are suitable for consumption or not. This type of research is a laboratory experiment. This research was conducted at the Maluku Provincial Health Laboratory on 26-28 January 2022. The sample used in this study was fish balls taken by purposive sampling (taken according to research needs) for laboratory testing. Based on the results above, it shows that the E.coli bacteria found in the meatball samples during the phenotyping test with Vitek 2 compact both at a dilution of 10-1 to 10-3 were not identified because they had not passed the maximum limit. Based on the results obtained, it was found that the fish balls made by service participants in Mamala country were still in accordance with the criteria of the Indonesian National Standard (SNI) No.7388:2009 regarding the maximum limit of E.coli bacterial contamination in processed meat products made by the government for the protection of consumers regarding the quality of the product in circulation and declared to meet the requirements for the maximum threshold of microbial contamination in food if the value is 3/g for the status fit for consumption. The condition of the value of the test results of the fish balls sample under study is due to the fact that food makers or processors when processing fish balls still use the correct sanitation and hygiene principles and according to procedures.
DYNAMICS AND CPUE OF FISHING TOOLS IN CONSERVATION AREA CATCH FISHERIES MANAGEMENT AROUND THE BATANG BUNGO RIVER, BUNGO DISTRICT, JAMBI PROVINCE Hertati, Rini
Asian Journal of Aquatic Sciences Vol. 5 No. 3 (2022): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

CPUE (Catch per Unit Effort) of fishing gear needs to be studied and analyzed for the sustainability of capture fisheries along the Batang Bungo River in the future. The research was conducted from April to May 2022. The purpose of the study was to see the dynamics and calculate the CPUE value of fishing gear along the Batang Bungo River, Bungo Regency, Jambi Province. The research method used is the survey method, determining the research location using purposive sampling method. Research results Fishing gear in the Batang Bungo River Conservation Area consists of seven types of fishing gear, namely: gill nets, traps, Tekalak, Sukam, stocking net, Tajur fishing rods, fishing rods, pulleys and shoots. Identification of fishing gear shows that fishing gear in the Batang Bungo River conservation area has five groups, namely fishing gear, gill nets, traps, fishing gear and fishing gear, and fall fishing gear. The fishing gear that dominates more than 50% is from the fishing line group by 55%, followed by gillnet (17%), traps (15%), falling fishing gear (9%) and grappling and injury (4%).

Page 15 of 55 | Total Record : 543

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