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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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EFFECTIVITY OF NIPAH (Nypa fruticans) EXTRACT ON (Aedes aegypti) LARVAE IN BRACKISH WATER Rady, Rady; Effendi, Irwan; Feliatra, Feli
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

The most commonly used method of vektor control is temephos (the synthetic larvicide). Currently in some areas there has been resistance of aedes aegypti larvae to temephos, so that natural larvicide is required as an alternative. Nypa exctract contains flavonoid compounds that are respiratory toxins that can kill aedes aegypty larvae.This research was conducted in January - February 2019. The purpose of this study was to determine the inhibitory power of nipah extract against larvae in brackhish water. The results of this study are expected to increase knowledge and provide information about the pontential of nipah as a soursce of bioactive compounds. The method used is the experimental method, where the location of the research sampel was obtained at one sampling location point in the Sungai Kayu Ara village, Siak Riau province. The results showed that the average mortality of larvae in nipah laeves in the 60th minute was 55, 80, 100 and 100%. While root extracts have larvae deaths as many as 60 minutes, namely 100, 90, 90, and 100%. For the average mortality of larvae at the root of nipah there are 60 minutes, which are 95, 100, 100 and 100%. As wel as positive and negative controls as a comparison. So it can be compared to 3 administration of nipah extract both leaves, roots and midrib so that the three conncentrations used are better than the use of midrib extract compared to leaf and root extract. It can be concluded that the more concentration used the higher the mortality of larvae is the concentration of 12%. For the concentration used the percentage of larvae mortality in the test media is as much as 6%, 9% and 12%. Every death of larvae has reristance to different bodies so that at the 30th minute there is a difference in mortality of larvae wich a given concentration. The larvae species used are aedes aegyti larvae. The highest mortality of dead es was found in midrib extract and also positive controls. So that the death of larvae is very effective against the given solution has the same ability. The mortality of A. aegypti larvae were then analyzed using probit analysis to obtain LC50 (Lethal Concentration 50) and LT50 (Lethal Time 50) values. The results of the probit analysis of leaf, root and midrib extracts are the estimation of LC50 1.493, 2.618, 0.005. while leaf , root and midrib extracts at the LT50 estimate were 2.841, 1.579, 2.227
TYPES AND DENSITY OF SEAGRASS IN THE GENTING BEACH, TANJUNG MEDANG VILLAGE, RUPAT UTARA DISTRICT, BENGKALIS REGENCY, RIAU PROVINCE Hidayah, Haini; Fauzi, Muhammad; Adriman, Adriman
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

Seagrass is present in the Genting Beach. During the low tide, however, propeler of fishermen ship damage the seagrass habitat in general. To understand the types and density of seagrass in Genting Beach, a study has been conducted in April – June 2018. There were 3 sampling points, in the river mouth of the Genting River (SP I), in the shipping line (SP II), and in the mangrove area (SP III). Seagrass were taken from 3 quadrants (1x1 m) in each sampling point. Sampling were conducted once. The seagrass was then identified. Results shown that there was one type of seagrass species, namely Enhalus acoroides. Seagrass density range from 17.99 – 90.78 organism/m2 and the coverage of seagrass was around 3.04% – 14.39%, water temperature was 31.66 - 32ºC, salinity 32‰, pH 8, clarity 0.26 – 0.33 m, current flow 0.37 – 0.42 m/s, sandy mud substrate, nitrate 0.033 – 0.075 mg/L, phosphate 0.035 – 0.104 mg/L and organic material was 20.50 – 27.57%. The seagrass density in the Genting Beach is classified as rare and the coverage as low.
EFFECT OF ADDITION OF DIFFERENT NITRATE CONCENTRATION ON Spirulina platensis BIOMASS WITH SEMI OUTDOOR SYSTEM Natalia, Natalia; Amin, Bintal; Effendi, Irwan
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

Spirulina platensis is one type of microalgae that has high nutrient and protein content and can live in fresh and marine waters. In the growth of S. platensis requires several supporting factors in its growth period, one of which is nitrate (NO3). Nitrate is needed in the formation of proteins and amino acids in cells and also helps in increasing biomass. This study was conducted with the aim to see the effect of adding different nitrate concentrations to S. platensis biomass with a semi-outdoor system. This research was conducted in March-April 2019 using the experimental method. Water quality parameters during the study obtained in the form of temperatures ranging from 29 – 30oC, pH 9 and salinity 25 ppt. The optimum nitrate concentration for the growth of S. platensis was at a concentration of 9 ppm with a total biomass of 0.669 grams.
THE EFFECT OF DIFFERENT LIGHT COLORS ON THE BIOMASS GROWTH OF Spirulina platensis Hanryani, Putri; Efriyeldi, Efriyeldi; Effendi, Irwan
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

Spirulina is microalgae that spreads widely in nature and can be found in various types of environments, both in brackish, sea and fresh water. Spirulina is photoautotrophic, so it requires light as an energy source for cell growth and synthesis of various important substances involved in it. Lack of light can cause photosynthesis to not take place normally so that it will affect the growth of S. platensis. This study aims to determine the effect of different light colors on the biomass growth of S. platensis. This research was conducted from March to April 2019 at the Marine Microbiology Laboratory and the Marine Chemistry Laboratory, Faculty of Fisheries and Marine, Universitas Riau. The method used in this research was the experimental method. The study design used was a completely randomized design (CRD) with four treatments (red, yellow, blue and control colors) and three replications. The results showed that the light colors had a significant effect on the biomass growth of S. platensis. Yellow light gave the best biomass growth, followed by red and blue light.
DENSITY AND COVERAGE OF SEAGRASS ON DIFFERENT TYPE OF SEDIMENT AT PANDARATAN BEACH TAPANULI TENGAH REGENCY NORTH SUMATERA PROVINCE Lianov, Dea; Efriyeldi, Efriyeldi; Zulkifli, Zulkifli
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

Seagrass ecosystem is one of shallow sea ecosystems that plays an important role to maintain stability of the sea. Density and coverage of seagrass depend on characteristic of sediment, include mean size and the type of sediment. The purpose of this study was to find out how density and coverage of seagrass on different type of sediment at Pandaratan Beach Tapanuli Tengah Regency North Sumatera Province. This research was conducted in April 2019. From the results can be discovered that there are two species of seagrass that found in Pandaratan Beach, Cymodocea rotundata and Enhalus acoroides. In the type of muddy sand sediment has the heighest density of seagrass which is 309 ind/m2 and categorized into very tight. In the type of sandy gravel sediment has the lowest density of seagrass which is 49 ind/m2 and categorized into very rare. And in the type of gravely sand sediment has the density of seagrass that is 234 ind/m2 and categorized into very tight. In the type of muddy sand sediment has the heighest coverage of seagrass which is 50.18% and categorized into good. In the type of sandy gravel sediment has the lowest coverage which is 17.72%. And in the type of gravely sand sediment has the coverage of seagrass which is 26.95% and categorize into moderately
THE EFFECT OF GIVING DETERGENTS TO THE GROWTH OF Azolla microphylla IN BRACKISH WATER Parbo, Annisa Presti; Effendi, Irwan; Nedi, Syahril
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

This research conducted on March to April 2019 with the aim of knowing the effect of detergent on the growth of A. microphylla. The results showed wet weight growth ranging from 2-23.81 grams (control) and 1.43-8.35 grams (addition of detergent). Absolute weight growth ranges from 3.63-8.47 grams and 1.77-3.28 grams. Growth in the number of colonies between 39.66-295 colonies and 37.66-98.33 colonies. Growth doubling time day 3-23 and 3.63-7.66 days. The growth of wet weight and the number of colonies of A. microphyla increased in each data collection on the control treatment media, while the addition of detergent treatment increased on the day 5 and day 10 and on the day 15 and day 20 decreased.
ANNALYSIS OF Pb, Cu AND Zn METAL CONTENTS IN RED CHUT-CHUT SNAIL (Cerithidea obtusa) AND SEDIMENT IN MENDOL ISLAND KUALA KAMPAR OF RIAU PROVINCE Sumanti, Susi; Nurrachmi, Irvina; Siregar, Yusni Ikhwan
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

The study was conducted in July 2018. Sampling of sedut snails (Cerithidea obtusa) which was carried out in the waters of Mendol Island, Kuala Kampar District, Pelalawan Regency was aimed to determine the differences in the content of Pb, Cu and Zn between slugs and sediments and to know the consumption limits and the level of heavy metal pollution in the waters of Mendol Island. The method used in this study is the survey method. Sampling was determined using purposive sampling. The results of this study indicate the value of the metal content of Pb, Cu, and Zn in sedut snail highest at station 2, respectively: 9,2633 μg / g, 72,040 μg / g, 111,748 μg / g. Whereas for Pb, Cu, and Zn metals, the highest sediment was found at station 2, namely: 23.990 μg / g, 4.795 μg / g, 48.587 μg / g The results of linear regression analysis of Pb metal concentrations in snail meat showed negative results, and the concentration of Zn and Cu metals in snail meat showed positive results. namely Pb with a value of 14.1930 kg / week on Zn metal with a value of 111.7483 kg / week, while Cu metal at station 2 with a value of 72.0400 kg / week
SPECIES DIVERSITY AND DISTRIBUTION OF SPONGES IN THE COASTAL AREA OF KASIAK ISLAND PARIAMAN REGENCY SUMATERA BARAT PROVINCE Ananda, Nahdya Nasri; Efriyeldi, Efriyeldi; Thamrin, Thamrin
Asian Journal of Aquatic Sciences Vol. 2 No. 2 (2019): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

Sponges are the most primitive multicellular animals that live in various types of waters from freshwater, brackish and sea. Sponges live in bottom waters that typically stick themselves on hard substrate such as rock or coral and compete with other tacks organism to obtain a food hall. The research was conducted in Kasiak Island Pariaman regency West Sumatera in February-March 2019, aims to find outthe type, density, frequency of occurrence, diversity index, dominance index, the distribution pattern of sponge, To support the research data is also observed the characteristics of the environment such as water quality. The method used is survey method, where sampling using belt transect method performed on three stations. The research found 14 genus / species of sponge consisting of 11 families in island waters Kasiak with sponge density values obtained in each research station ranges from 1458-4208 ind / ha. The highest frequency of occurrence of the type Jaspis sp. with the frequency of occurrence of 100%. Diversity index values ranged from 1.8921 to 1.9488, dominance index value obtained was from 0.3163 to 0.3396, and the value of the distribution pattern of the sponge ranges from 0.2941 to 0.3015.
ADDITION OF SUPERIOR HETEROTROF BACTERIA MIXED IN FEED TO IMPROVE HEALTH OF SALINE TILAPIA Oreochromis niloticus Simanjuntak, Lewi Maraditha; Lukistyowati, Iesje; Feliatra, Feli
Asian Journal of Aquatic Sciences Vol. 2 No. 3 (2019): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

This research was conducted in May 2019 until July 2019 which took place at the Laboratory of Marine Microbiology and the Laboratory of Fish Parasites and Diseases at the Faculty of Fisheries and Maritime Affairs, Riau University. The purpose of this study was to determine the effect of the addition of superior heterotrophic bacterial isolates that were sprayed on feed could affect the health of saline tilapia (Oreochromis niloticus) through erythrocyte and leukocyte blood images. The treatments are Kn, Kp, feed sprayed with B.cereus heterotrophic bacterial isolate solution (0.15% dose), feed sprayed with heterotrophic V. fluvialis bacterial isolate solution (0.15% dose), feed sprayed with combined Isolate solution. The results of the study of the addition of superior heterotrophic bacterial isolates sprayed on feed can improve the health of saline tilapia (Oreochromis niloticus) after 30 days of maintenance and post-infection of Aeromonas hydrophila bacteria showed that the treatment of P3 (combined isolates) which is the best treatment with a total leukocyte value of 89.67 x 103 cells / mm3, lymphocytes 80.33%, neutrophils 10.67%, monocytes 9.66%, total erythrocytes 235.00 x 104 cells / mm3, hematocrit 32.00% and hemoglobin 7.33 g / dL and weight growth absolute 7.05 g, a survival rate of 83.33%.
MAPPING OF MANGROVE VEGETATION USING LANDSAT SATELLITE IMAGERYIN THE ESTUARY OF GANGSAL RIVER INDRAGIRI HILIR REGENCY RIAU PROVINCE Susilo, Hendri; Galib, Musrifin; Mulyadi, Aras
Asian Journal of Aquatic Sciences Vol. 2 No. 3 (2019): December
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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Abstract

The research was conducted in January - March 2019. This study aims to map and analyze changes in the area and density of mangrove vegetation based on NDVI values and community structure in the Muara Sungai Gangsal, Indragiri Hilir Regency. To analyze the area and density of NDVI using Landsat 5 TM satellite imagery in 2008 and Landsat 8 OLI/TIRS in 2018. Analysis using ArcGis 10.3 software. The calculation of mangroves based on community structure used the Transect Line Plot method at 6 stations for community structure sampling. The area of mangrove vegetation in 2008 was 2,706 ha and in 2018 it was 2,693 ha. The results of the analysis of mangrove vegetation area from 2008 to 2018 there was a reduction of 13 ha. The NDVI value for 2008 criteria is rarely 133 ha, while 2.009 ha are wide and 564 ha is dense. The NDVI value of the 2018 mangrove vegetation is rarely 16 hectares, while 2,135 hectares are in the area and 542 hectares are dense. Based on the analysis of mangrove density in 2018 at 6 sampling point stations ranging from 866 ind/ha to 1,522 ind/ha. Density criteria are rarely detected at station I with a density of 922 ind/ha and station II with a density of 866 ind/ha. The criterion of moderate density was detected at station V with a density of 1,255 ind/ha and station VI with a density of 1,044 ind/ha. Criteria for solid density were detected at station III with a density of 1,522 ind/ha and station IV with a density of 1,511 ind/ha

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