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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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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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THE EFFECT OF PLASTIC COVERS WITH DIFFERENT COLOR ON THE TYPE AND ABUNDANCE OF EPIPELIC DIATOMS IN THE NATURAL LOVERS INTERTIDAL AREA (PAB) CITY OF DUMAI Nisa, Chairun; Siregar, Sofyan Husein; Nasution, Syafruddin
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 purpose of this study was to determine the effect of the plastic cover with different colors on the type and abundance of epipelic diatoms. This research was conducted in March 2022 which is located in the Pecinta Alam Bahari (PAB) area of ​​Dumai City. The method used is an experimental method with plastic cover treatment with different colors. This experiment has one factor, namely plastic color, with four levels of treatment, namely no plastic (control), clear, red, and black colors. The type of plastic used is the same type of plastic. The experimental units are made of iron which is assembled with a size of 1x1m and 12 subunits are measuring 10x10 cm. Observations were made every day for three consecutive days. The results showed that there were 15 species of epipelic diatoms, where the species that were often found every day were Cosdisnodiscus sp., Gyrosigma sp., Navicula sp., and Pleurosigma sp., Skeletonema sp, Striatella sp, Synedra sp. The abundance of diatoms in the treatment without plastic ranged from 38993.8 - 68239.2 ind/cm2, the clear plastic cover ranged from 39880.04 to 67353.0 ind/cm2, the red plastic cover ranged from 31904.0 to 69125.4 ind/cm2, and the black plastic cover ranged from 28359.14 – 54945.83 ind/cm2. The results of the One Way Anova test between treatments showed a significant difference every day, except on day 0 which was not significantly different.
CORAL REEF COVER RELATIONSHIP TO POMACENTRIDAE AND PHYTOPLANKTON CORAL FISH IN KASIAK ISLAND OF WEST SUMATRA PROVINCE Sitohang, Margaretha; Nurrachmi, Irvina; Thamrin, Thamrin
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Kasiak Island is one of the islands located in the waters of Pariaman, West Sumatra, and located right in front of Pariaman City. Around the sea, the island is surrounded by coral reefs and is a protected area. In the aquatic area of Kasiak Island has never been conducted research on the relationship of coral reef cover to the coral Pomacentridae and phytoplankton. Therefore, it is necessary to conduct research on this matter in the waters of Kasiak Island, West Sumatra Province. Data collection of coral reef cover is done by the LIT (Line Intercept transect) method with a transect length of 50 meters at a depth of 5 meters using scuba equipment. Coral fish observation is done by UVC (Underwater Visual Census) method with a transect length of 50 meters and an observation area of 2.5 meters left and right at a depth of 5 meters. Phytoplankton sampling is conducted during the day at 11.00 to 15.00 WIB at five points of the station with a depth of 5 meters using Vandorn water sampler volume 2 L with a total take of 100 L, then filtered using Plankton net no 25 and inserted into a sample bottle of 125 ml, then preserved using Lugol 4% as much as 4-6 drops, after which analyzed in the laboratory. Based on the results there is a very strong relationship between coral cover to the abundance of coral fish, where coral cover contributes to the abundance of coral fish by 93.87%, which means that the higher the percentage of coral cover the more species and abundance of coral fish are found. Then the a strong relationship between coral reef cover and phytoplankton abundance, where coral reef cover contributes to the abundance of phytoplankton by 56.37%, which means an increase in the percentage of coral reef cover along with the increasing abundance of phytoplankton.
ANALYSIS OF ORGANIC MATERIAL CONTENT AND ABUNDANCE OF MACROZOOBENTHOS IN THE SOUTH BENGKALIS ISLAND, RIAU PROVINCE Razid, Muhamad; Amin, Bintal; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
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 was conducted in July-August 2020 by using sediment samples and macrozoobenthos in the southern part of Bengkalis Island, Riau Province. The aim of this study is to find out how much the organic matter content, the abundance of macrozoobenthos, and the correlation between the organic matter content of the sediments to the abundance of macrozoobenthos. This study used a survey method consisting of 3 stations with 3 transects in each station. The organic matter content of sediments revolved from 4.85 to 8.52% in the waters of the southern part of Bengkalis Island. The highest organic matter content was at station III, namely 8.52%, while the lowest organic matter content was at station II namely 4.85%. The abundance of organisms found at the three research stations was 4.04 to 5.96 ind/m2. The abundance average at all macrozoobenthic research stations was 4.93 ind/m2. The results of simple linear regression analysis of organic matter content and abundance of macrozoobenthos showed a very weak correlation.
STUDY OF GILL, KIDNEY, AND LIVER STRUCTURE OF Pangasius hypophthalmus IN THE TANJUNG KUDU LAKE AND SAIL RIVERS, RIAU PROVINCE Irene, Christin; Eddiwan, Eddiwan; Windarti, Windarti
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Environmental condition and water quality in general may affects the health status of fish and it represents in the structure of fish organs such as the gill, kidney, and liver. To understand the structure of the gill, kidney, and liver of Pangasius hypophthalmus that live in the Tanjung Kudu Lake (good water quality) and in the Sail River that has been polluted, a study has been conducted from November to December 2020. Twelve fishes (6 fishes/river) were analyzed. The tissue was formalin-fixed and processed through alcohol series, paraffin-embedded, 5m sliced and Hematoxylin-Eosin stained. The histological samples were then studied using a binocular microscope Olympus CX 21. The abnormality level of the tissue was categorized using the Histopathological Alteration Indeks (HAI). Results showed that the fish tissues from both study sites indicate light abnormality signs such as hyperplasia, hypertrophy, and lifted epithelia. The HAI was 2 for fish from the Tanjung Kudu Lake and 3 for the fish from the Sail River. This index indicates that the abnormality may be cured as the water quality improved.
GROWTH CIRCLE PATTERNS IN THE OTOLITH OF THE GRAY FISH (Osteochilus melanopleurus) FROM THE SIAK AND KAMPAR RIVERS Sinaga, Martianna; Eddiwan, Eddiwan; Windarti, Windarti; Asiah, Nur
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Osteochilus melanopleurus can be found in the Siak and Kampar Rivers. The Kampar Rivers waters are better than that of the Siak River and it affects the growth of the fish. The growth pattern is reflected in the pattern of otolith growth rings. The research aims to understand the pattern of otolith growth rings of the O. melanopleurus from both rivers has been conducted from January to February 2021. There were 55 fishes captured (28 males and 27 females). The otolith was taken using tweezers and shaved manually using a soft grindstone. The dark growth ring pattern was investigated using a binocular microscope. Results showed the size of fish captured was 220 to 360 mm from Siak River and 310 to 370 mm from Kampar River. In the fish with the same standard length, the size of the otolith from the Siak River is heavier and longer than that of the Kampar River, which means that fish growth from the Kampar River is better than that of the Siak River. The length of an otolith from Siak River ranged from 1.875 – 3.275 mm, the width was ranged from 1.575–2.75 mm and the weight of otolith was 0.0039 – 0.0098 g, while the length of an otolith from Kampar River ranged from 2.375–3.275 mm, the width was ranged from 1.85–2.575 mm and the weight of otolith was 0.0042 –0.0076 g. The maximum number of the dark ring in the otolith from the Siak River was 4 and Kampar River was 2. The distance between the nucleus and the first dark ring of fish from both rivers was varied from 0.1–0.525 mm, and there was no special pattern. This fact indicates that the first dark ring was formed individually and they were not formed by a periodical incidents during the fish life.
ANALYSIS OF LAND COVER CHANGES IN MANGROVE VEGETATION USING LANDSAT IMAGE DATA IN COASTAL, SUNGAI APIT DISTRICT, SIAK REGENCY, RIAU PROVINCE Armanda, Armanda; Mubarak, Mubarak; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
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 March-April 2021 in the Coastal District of Sungai Apit, Siak Regency, Riau Province. The purpose of this study was to analyze changes in the land cover area of ​​mangrove vegetation and mangrove vegetation index in Sungai Apit District, Siak Regency, Riau Province. The method used in this study is a survey method with the interpretation of Landsat image data recorded in 2000, 2005, 2010, 2015, 2020. The results of the study obtained that mangrove forests with the highest area were in 2000 with an area of ​​mangrove vegetation reaching 7990,586 ha and there was a decline with the lowest number in 2015 with a vegetation area of ​​486,43 ha and in 2020 the mangrove vegetation area of ​​497,511 ha. Overall as much as 79% of the mangrove forest area has been damaged and changed its function within a period of 20 years. The NDVI value in Sungai Apit District is moderate with a value of 0,3-0,5, the category of meeting with a value of 0,5-0,6, and the very dense category of 0,6-0,8.
ANALYSIS OF COASTLINE CHANGES ON THE POTENTIAL OF MANGROVE FORESTS ON BENGKALIS ISLAND, RIAU PROVINCE Nabilla, Lulu; Mubarak, Mubarak; Elizal, Elizal
Asian Journal of Aquatic Sciences Vol. 4 No. 2 (2021): August
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 was conducted from January to February 2021 in coastal areas of Bengkalis Regency that is in Riau Province. This study aims to know the coastline changes to the potency of mangrove forests in that area. Field data was collected by survey methods such as direct observation and questioners, and it used different times of satellite imageries to find out the coastline changes over time. The results showed that the coastline of this regency had changed as much as 1036 Ha in average from the year of 1988 to 2020. It was due to coastal abrasion, wave actions, and reduction of mangrove forests; the coastline change reached 12.02 meters per year as the highest. The mangrove forest in the region of this regency plays important roles to the local life, the local economy, and the coastal waters; it was for fishermen, charcoal production, coastal tourism, and transportation as well.
ACUTE TOXICITY WATER EXTRACT OF Meretrix meretrix Linnaeus IN VIVO ON SPRAGUE DAWLEY RATS Apriandi, Azwin; Tarman, Kustiariyah; Sugita, Purwantiningsi
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

Meretrix meretrix empirically has been widely believed by the public to a wide variety of health benefits. It is necessary to do an analysis of the level of toxicity of Meretrix meretrix extract. The experiment was carried out extraction sample with water (1;4) (w/v), analysis of acute toxicity Meretrix meretrix extract with the OECD method 403:2009. Based on the results of water extract of Meretrix meretrix no effect on physical observations of test animals with LD50> 15 g/kg BW. Histopathological observation on the liver and kidneys, there is necrosis of the liver cells and some cell degeneration in the kidneys, but on the whole network under normal conditions appropriate control group.
INVENTORY OF SEA CUCUMBER SPECIES (Holothuroidea) IN THE WATERS OF PANDARATAN BEACH SARUDIK DISTRICT, CENTRAL TAPANULI REGENCY, NORTH SUMATRA Panggabean, Iis; Samiaji, Joko; 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

Pandaratan Beach is one of the beaches located in Central Tapanuli Regency, North Sumatra. Pandaratan Beach has a diverse potential of biological resources namely mangrove ecosystems, seagrass ecosystems, and coral reef ecosystems. Sea cucumbers are among the potentials in the beach.This research was conducted in February 2021. The purpose of this study is to find out the type, abundance and diversity of sea cucumbers in the waters of Pandaratan Beach. The method used was the survey and for the determination of the observation location was determined by purposive sampling. The results showed that 1 genera and 3 species of sea cucunbers were found, namely Holothuria scabra, Holothuria atra, and Holothuria leucospilota. The abundance of sea cucumbers ranged from 444 – 800 ind/ha.The highest relative abundance was found in the found in the species of Holothuria leucospilota at station I with a percentage of 66.67%. The sea cucumber diversity index ranged from 0.6515 - 1.1955.
STRUCTURE OF THE BENTHIC EPIFAUNA COMMUNITY IN MANGROVE ECOTOURISM AREA IN PANGKALAN JAMBI VILLAGE, BUKIT BATU DISTRICT, BENGKALIS REGENCY Arniati, Dina; Efriyeldi, Efriyeldi; Mubarak, Mubarak
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

Benthic epifauna are animals that generally live in coastal waters such as sandy/muddy beaches, coral reef ecosystems and mangrove ecosystems. The purpose of this study was to analyze the structure of the benthic epifauna community in Mangrove ecotourism, Pangkalan Jambi Village, Bukit Batu District, Bengkalis Regency. This study uses a survey method. Epifauna community structure parameters taken include species, abundance, diversity, uniformity, and dominance. The environmental parameters measured included water quality, substrate type and total organic matter content of the sediment. The number of species found was 9 species from 2 classes, namely Gastropods and Malacostraca with the most dominant species found, namely the benthic epifauna species Cerithidea quadrata. The highest abundance of benthic epifauna species Cerithidia quadrata was 1.04 Ind/m2. Based on the ANOVA test with a significant value of 0.115> 0.05, it means that the preference of the betik epifauna between stations was not significantly different.

Page 43 of 53 | Total Record : 524

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