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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).
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Articles 36 Documents
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Search results for , issue "Vol. 6 No. 2 (2023): August" : 36 Documents clear
DISTRIBUTION AND DIVERSITY OF GASTROPODS (MOLLUSCS) IN INTERTIDAL WATERS IN RUPAT SUBDISTRICT, BENGKALIS DISTRICT Pratama, Muhammad Dandy Syifa; Nasution, Syafruddin; Efriyeldi, Efriyeldi
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): 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 aims to determine the distribution pattern and diversity of gastropods in the Intertidal Waters of the Rupat Timur District. The research was conducted in February 2022. The research location consisted of 3 stations, each station was placed 3 transects from the highest tide to the lowest tide at different distances. Along the transect lines were placed 3 plots with a size of 3 x 3 m and each plot has a subplot with a size of 1 x 1 m. The method used in this research is the survey method. Parameters measured include gastropod species, distribution patterns, diversity, abundance, relative abundance, and water quality. The results of the study found gastropod species consisting of 9 (nine) families, 12 (twelve) genera, and 13 (thirteen) species. The distribution pattern of gastropods in the research location is clustered with the value of diversity (H') at a moderate level of diversity. Diversity is categorized as moderate. The highest abundance of gastropods was found on the beach of Sukarjo Mesim Village (a station I) with an abundance value of 25,600 ind/ha and the lowest abundance was found on the beach of Teluk Lecah Village (station III) with an abundance value of 11,100 ind/ha, while the highest abundance of gastropods between intertidal subzones was in the upper zone with an abundance value of 20,400 ind/ha and the lowest abundance was in the lower zone with an abundance value of 12,200 ind/ha. The highest relative abundance was Indothais javanica species with a relative abundance value of 18.30%, while the lowest relative abundance was Oliva ornata species with a relative abundance value of 0.85%. Temperature 29-30o C; salinity 28-30 ppt; pH 5-6; DO 5.2-6.4 mg/l. Sediment type in the station I was dominated by mud, station II was dominated by muddy sand and station III was dominated by sand with total sediment organic matter content of 0.46-23.33%.
RELATIONSHIP BETWEEN PRIMARY PRODUCTIVITY OF PHYTOPLANKTON AND NUTRIENTS IN COASTAL WATERS, PELINTUNG VILLAGE, MEDANG KAMPAI DUMAI DISTRICT Pebriyanti, Salfiah; Badrun, Yeeri; Herlina, Nofripa
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): 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 is to determine the relationship between primary productivity and nutrients in the coastal waters of Pelintung Village, Medang Kampai District, Dumai. The research was conducted in March 2022; the method used in this research is survey method and purposive sampling. The research location is divided into 3 station points namely tourist area, secondary vegetation forest area, and near industrial area. The results of the measurement of the highest primary productivity value are found at Station III which is 78.91 mgC/m2/hour which indicates mesotrophic water conditions, while the lowest primary productivity value is at Station II, which is 46.88 mgC/m2/hour which indicates oligotrophic water conditions. The results of the analysis of the concentration of nitrate and phosphate between stations also varied, namely for the nitrate value of 0.04 – 0.05 mg/L which was included in the less fertile category, while the phosphate concentration was 0.042 – 0.048 mg/L which was included in the fertile category in the waters. Furthermore, the relationship between nitrate concentration and primary productivity is a correlation coefficient value (r) = -0.070 which means that there is a weak relationship between nitrate concentration and primary productivity. Meanwhile, the relationship between phosphate concentration and primary productivity is the correlation coefficient (r) = 0.965, which means that there is a very strong relationship between phosphate concentration and primary productivity. So it can be concluded that nitrate and phosphate nutrients can affect the primary productivity of water.
PRODUCTIVITY OF SNAKEHEAD FISH (Channa striata) AS A SOURCE OF WOUND HEALING Laoli, Destriman; Waruwu, Eliyunus; Telaumbanua, Betzy Victor; Zebua, Ratna Dewi; Nazara, Ridho Victory
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Snakehead fish (Channa striata) is a freshwater fish that can be found throughout Indonesian waters. Snakehead fish in today's society has been associated with medicine. Snakehead fish is processed into various types of dishes and then served to sick families, especially for those who are postoperative because its content has been clinically proven in several diseases. Snakehead fish has a high protein content, especially albumin and essential amino acids, fat, especially essential fatty acids, minerals, especially zinc (Zn), and several vitamins that are very good for health. Bioactive compounds that play a role in accelerating the wound healing process are albumin, glycine, and zinc (Zn). Wound healing is highly dependent on the biochemical processes that occur in the skin involving intrinsic and extrinsic factors. This healing process will be accelerated with the help of dried extracts of Snakehead fish designed in topical forms such as creams or gels.
THE RELATIONSHIP BETWEEN NITRATE, PHOSPHATE AND ORGANIC MATERIAL CONCENTRATION TO PHYTOPLANKTON ABUNDANCE IN RUPAT ISLAND WATERS Tanjung, Doli Juni Setia; Amin, Bintal; Mubarak, Mubarak
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Over time, Rupat Island has experienced very rapid development, marked by variousactivities such as plantations, agriculture, farming, and ecotourism activities which aregrowing rapidly. This study aims to determine the relationship between concentrations ofnitrate, phosphate, and organic matter on the abundance of phytoplankton in Rupat Islandwaters. The results showed that the average nitrate concentration was relatively high, rangingfrom 0.0993-0.1618 mg/L and the average phosphate concentration was around 0.0951-0.1571 mg/L. Furthermore, the concentration of organic matter in water ranged from 27.555-35.234 mg/L. The lowest abundance of phytoplankton was found in the Station II area with anaverage abundance value of around 416.67 cells/L, while the highest average abundance wasin the Station V area with an average value of 993.05 cells/L. The relationship between thecontent of nitrate, phosphate, and organic matter with the abundance of phytoplankton in theRupat Island area was insignificant or weak with a coefficient of determination (R2) of 8%,10.5% and 3.3%.
HISTOPATHOLOGY OF KIDNEY AND INTESTINE OF TILAPIA (Oreochromis niloticus) FED WITH HERB FERMENTED FEED AFTER CHALLENGE OF Streptococcus agalactiae Al Furqon, Abdullah; Riauwaty, Morina; Luskityowati, Iesje
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The natural ingredients' potential as immunostimulants is a plant Curcuma and Aromatic ginger. This research was conducted from March to June 2022 in 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). This research aimed to know the structure of the Kidneys and Intestines of tilapia by adding herb-fermented feed to prevent Streptococcus agalactiae infection. This research was an experimental method using a Completely Randomized Design (CRD) with 4 treatments and 3 replications. This treatment of the study was; NC (were not immersed and infected), PC (were not immersed in fermented herbs solution but infected of S.agalactiae), T1 (Giving 100 mL/kg fermented herbs), T2 (Giving 125 mL/kg fermented herbs), T3 (Giving 150 mL/kg fermented herbs). The fish used were 6 - 7 cm in size and reared with a stocking density of 1 fish/3 L of water and kept for 46 days. Fish were challenged with S.agalactiae bacteria with a density of 108 CFU/mL at a dose of 0.1 mL/head intramuscularly on day 32, after which the fish were reared again until day 46. Changes that occur in the kidneys of fish are hemorrhage, hypertrophy, and necrosis, while in the intestines there are histological changes in the form of haemorrhage, edema, vacuole degeneration, and necrosis. The results show that the feeding containing the herbal medicine of Curcuma and Aromatic ginger fermented affected the improvement of the histological changes in the kidneys and intestines of tilapia.
THE EFFECT OF TEMPERATURE DIFFERENCES ON HATCHING RATES OF LEKANG TURTLE (Lepidochelys olivacea) EGGS IN SEMI-NATURAL NESTS Ginting, Daniel Paskah; Nasution, Syafruddin; Siregar, Yusni Ikhwan
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): 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 on August 31, 2021 – December 7, 2021, at the UPTD KPSDKP, West Sumatra Province. The purpose of this study was to determine the effect of temperature differences on incubation time, hatching rate, and survival rate of turtle hatchlings (Lepidochelys olivacea). The method used in this study is an experiment that uses 3 trials plus 1 control, with 3 repetitions. Turtle eggs were incubated with the same depth and number of eggs with the addition of different temperatures from incandescent lamps with different powers. Then proceed with the calculation of incubation time, percentage of hatching, and survival of hatchling. Based on the results of the research, for the calculation of incubation time, the experimental unit with the shortest incubation period was produced by experimental unit B, with a temperature range of 27.5–29.5⁰C, which was 58 days. The incubation period that took the longest was the control experimental unit with an average temperature of 25⁰C, which was 65 days. For the results, the most optimal hatching rate was produced by experimental unit B, with an average hatching rate of 86%. Meanwhile, the lowest hatching rate was obtained from experimental unit C with an average hatching rate of only 53.3%. Then for the survival of the hatchlings after being quarantined for one week, all of them show the number 100%, which means that no hatchlings died during the quarantine.
THE EFFECT OF TOPOGRAPHICAL DIFFERENCES ON THE GROWTH OF KOI CARP (Cyprinus carpio koi) Halimah, Nur; Jailani, Abdul Qadir; Sari, Annisa Novita
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Interest in the cultivation of koi carp commodities has increased during the Covid-19 pandemic. Breeders come from various communities. This study aims to determine whether topographic differences have an effect or not on the growth of koi carp. The research was conducted from February to March 2022 for 45 days. The location of the research was carried out in three different places, Kaliangkrik, Tempuran, and Kebumen. The research method used was a Completely Randomized Design (CRD) with 3 treatments and 3 repetitions. The first treatment is an altitude of 1,030 meters above sea level (Kaliangkrik), the second is 323 meters above sea level (Tempuran), and the third is 26 meters above sea level (Kebumen). The data were analyzed using the Analysis of variance (ANOVA) followed by Duncan's Multiple Range Test (DMRT) further tests. The results showed that topographic differences affect the growth of koi fish both in weight and length growth of koi fish. The altitude that produces the best growth in this study is at an altitude of 26 meters above sea level or located in Kebumen. This is supported by the data showing the highest weight (average 4,1 g), the longest (average 2.5 cm), the lowest FCR (average 2,16), and the highest Survival Rate (SR) high (80%).
EFFECT OF NATURAL FEEDING ON THE GROWTH OF SNAKEHEAD FISH (Channa maruliodes) Putri, Melani; Hidayati, Sri; Armando, Eric
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

The obstacle faced by snakehead fish farmers is the provision of feed that has quality and a high protein content for the growth period of fish. Natural feed can be an alternative. The purpose of this study was to determine the effect of the natural feeding of gold snails, earthworms, and Hongkong caterpillar types on the growth of snakehead fish. The research was conducted from January to February 2022, in Adipasir Village RT. 07 RW. 02 Rakit District, Banjarnegara Regency, Central Java. The method used in this study was experimentally arranged using a completely randomized design (CRD). This study consisted of 4 treatments with 4 replications and each treatment consisted of 5 snakehead fish so the number of containers used was 16 pieces and 80 snakehead fish. The analysis used was a one-way Analysis of Variance (ANOVA) with an error level of α = 0.05. The treatment consisted of T1 (control with Pellet), T2 (gold snail), T3 (earthworms), and T4 (Hongkong Caterpillars). The results showed that natural feeding influences the growth of snakehead fish. The best treatment is natural food in the form of a Hongkong caterpillar with an absolute weight of 4.7475 g, an absolute length of 3.63 cm, FCR of 1.07.
THE STRUCTURE OF SEA CUCUMBER COMMUNITY OF HOLOTHUROIDE CLASS OF THE SUGI ISLAND WATERS NIUR PERMAI VILLAGE MORO DISTRICT KARIMUN REGENCY Alviana, Nur; Zulkifli, Zulkifli; Nasution, Syafruddin
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Sea cucumbers from the Holothuroidea class are spineless and soft-bodied animals like cucumbers. This research was conducted in March 2021 in Niur Permai Village, Moro District, Karimun Regency, Riau Islands Province. This study aims to determine the structure of the sea cucumber community in the waters of Sugi Island, Niur Permai Village. The method used in this research is the survey method. Sampling was done purposive sampling, by determining 3 (three) stations. The results of the research on sea cucumber community structure in the waters of Sugi Island, Niur Permai Village found 4 (four) species, and the most common family found was from Stichopodidae including Stichopus horrens, S.hermanni, S.ocellatus. Based on the calculation of the highest abundance value found at station III, namely 900 ind/ha found in coral and seagrass areas, while the lowest abundance value at station II, namely 7.66 ind/ha found in muddy sand areas. Diversity index values (H') ranged from 1.37-1.94 with a uniformity index (E) ranging from 0.69-0.97 and a dominance index (C) ranging from 0.27-0.29. The overall distribution pattern of sea cucumber class Holothuridea is clustered. Based on the analysis of sediment organic matter in the waters of Sugi Island, Niur Permai Village, the highest average value is 2.85% and the lowest percentage is 2.08%. The results of the analysis of the sediment fraction at each station are gravel sand. Water quality parameters measured in the research location have good environmental conditions for sea cucumber life.
COMMUNITY STRUCTURE OF MACROZOOBENTHOS AS AN INDICATOR QUALITY OF COASTAL WATERS IN TANAH MERAH VILLAGE Kasmira, Febriyanti; Nasution, Syafruddin; Mubarak, Mubarak
Asian Journal of Aquatic Sciences Vol. 6 No. 2 (2023): 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 January 2022 in the coastal waters of Tanah Merah Village and at the Marine Biology Laboratory and Marine Chemistry Laboratory, Department of Marine Science, University of Riau. The purpose of the study was to analyze the structure of macrozoobenthos communities in the coastal waters of Tanah Merah Village which includes the type, abundance, diversity, uniformity, dominance index, and similarity of communities. As supporting data in this study, several environmental parameters were also measured which included water quality, sediment type, and sedimentary organic matter content. The research method used is the survey method, where sampling using the squared transect method is carried out at 3 stations. Based on the results of the study found 13 species of macrozoobentos. A species that is found at all stations is Nerita articulate. The abundance of macrozoobenthos is 12,300 ind/ha. The diversity index value (H') of 1.42, indicates a moderate category, namely water quality is still maintained, a uniformity index (E) of 1.66, is classified as a high category, namely water quality is still supportive for macrozoobenthos life, the dominance index (C) 0.17, is included in the low category. In the community similarity index between I and II, 25% of types are not the same, inter-station I and III 43% of types are almost the same, and inter-station II and III 16% of types are not the same. Water quality parameters are as follows: temperature 27-29oC; salinity 30-31 ppt; pH 6-7; DO 3.6-7.6 mg /l. Sedimentary organic matter 4.47-23.53%, muddy sediment type. Based on the value of the aquatic quality biological index at the research site, it is still in good condition.

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