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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 28 Documents
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Search results for , issue "Vol. 5 No. 2 (2022): August" : 28 Documents clear
FACTORS AFFECTING CATCH RESULT MOTOR BOAT FISHERMAN IN MEUKEK DISTRICT SOUTH ACEH DISTRICT Yusadi, Ratna; Thahir, Muhammad Agam
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Meukek sub-district is one of communities located is south Aceh regency, which is located on the coast of the indian ocean because of the great potential and marine fisheries, so many people work as capture fisheries fishermen. The purpose of this research was to analyze the factors that influence of motorboat fishermen catch in meukek regenty. The research method was a quantitative descriptive with a survey approach. Total of samples was 34 respondents. The data analysis used was multiple linear regretion analysis. The result was factor of working capital (X1), labor (X2), fishing times (X3) and mileage (X4) has simultaneously significantly affected of the catches partially, only factor of labor (X2), mileage (X4) has significantly affected of the catchs, while factors of working capital (X1) and fishing times (X2) has not significantly effected of the catchs.
MAPPING THE DISTRIBUTION OF MANGROVE BY REMOTE SENSING IN THE COASTAL OF KARAWANG REGENCY Pasaribu, Roberto Patar; Pranoto, Aris Kabul; Afwafiah, Elfa
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Mangrove forest areas are generally found throughout the coast of Indonesia and grow in locations that have a tidal influence. At this time the condition of mangroves both qualitatively and quantitatively continues to decline from year to year. The decline in the quality of mangroves is a serious concern along with the shrinking of its area. The purpose of this study was to determine the condition and extent of mangrove distribution on the coast of Karawang Regency. The research was carried out on the coast of Karawang Regency from March to June 2021. The research method was carried out by survey methods and satellite data collection, to obtain field condition data and Landsat 8 satellite imagery data. Image data processing and analysis was carried out using the NDVI (Normalized Difference Vegetation Index) method which can create a boundary between mangrove and non-mangrove. With this method, it can be seen the changes in the mangrove distribution area from year to year. The results of data processing and analysis show that in 2013 the distribution of mangroves on the coast of Karawang Regency has an area of ​​207.88 km2, in 2016 it has an area of ​​357.22 km2 and in 2020 its area is 237.61 km2.
THE EFFECT OF THE DISTRIBUTION OF SEA SURFACE TEMPERATURE IN THE INDIAN OCEAN SOUTH OF JAVA ON THE CATCH OF YELLOWFIN TUNA (Thunnus albacares) USING AQUA MODIS SATELLITE IMAGERY Putra, Yudha Erlangga; Syarifuddin, Hutwan; Sumadja, Wiwaha Anas
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Tuna (Thunnus sp.) is the second largest foreign exchange earner after shrimp. One type of tuna which is an export commodity is yellowfin tuna (Thunnus albacares). Research on the effect of the distribution of sea surface temperature in the Indian Ocean south of Java on the catch of yellowfin tuna (Thunnus albacares) has been carried out at the Nizam Zachman Ocean Fishery Port (PPS) from April 8 to April 30, 2021. This study aims to determine the effect of sea surface temperature (SST) on the catch of yellowfin tuna. The research method used was the method of observation and analysis of satellite imagery. Coordinate data and the number of catches were obtained from the Ocean Fishery Port Logbook (PPS) Nizam Zachman. SPL data obtained from satellite imagery Modis Aqua Level 3. The data was obtained and then analyzed using a simple regression test and the F test results of regression analysis showed that the correlation coefficient (R) of 12.7% and the coefficient of determination (R2) of 1,6% means that 1.6% of yellowfin tuna catches are influenced by SST and 98.4% is influenced by other factors. The F test results show that the SPL significance value is 0.332. The conclusion is that changes in SST have no significant effect on the catch of yellowfin tuna.
OPTIMIZATION THE GROWTH OF PROTEOLYTIC BACTERIA Bacillus toyonensis AT DIFFERENT SALINITY AND CONCENTRATION OF TOFU WASTEWATER Oktavia, Dewi Asmiati; Nursyirwani, Nursyirwani; Yoswaty, Dessy
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Proteolythic bacteria, including Bacillus toyonensis, have potencial to be used in feed industry and in processing of industrial waste. Cultivation of this bacteria requires appropriate enviromental condition and substrate for the growth. The objective of this research was to observe the growth of B. toyonensis at different salinity and tofu wastewater concentration. This experimental research used completely randomized design consisted of two factors. Those were salinity (0‰, 15‰, dan 30‰) and different concentrations of tofu wastewater (8%, 10%, and 12%). Bacterial cell growth was observed by the spectrophotometric method and total plate count (TPC) method. The bacterial cell growth was observed at 0, 24, 48, 72 and 96 hours-incubation. The results indicated that the best medium for the growth B. toyonensis was in tofu wastewater concentration of 12% at salinity of 15‰. The optimum growth occurred at 48 hours-incubation.
DRY SYSTEM LIVE FISH TRANSPORT SIMULATION TEST IN BEONG FISH (Hemibagrus nemurus) USING PLANTAIN STEM LIVER EXTRACT (Musa paradisiaca) WITH THE DIFFERENT DOSE Wulandari, Vidya Setianti; Jailani, Abdul Qadir; Sari, Annisa Novita
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Asian Redtail Catfish (Hemibagrus nemurus) is one of the freshwater fish commodities that lives on several rivers in Indonesia. Unavailability of Asian Redtail Catfish throughout Indonesia causing the provider area to become a target market for distributing Asian Redtail Catfish. This study aims to find out the effect of administering the optimal anesthetic dose of banana stem liver extract for anesthesia and the survival rate of Asian Redtail Catfish in dry system transportation testing. The research method used is the complete random design method (RAL) 3 treatments and 3 repetitions, where P1 (dose 1%), P2 (dose 2%), and P3 (dose 3%). The results showed that a dose of 1% banana stem liver extract gave the best results in the dry system transportation test process with a duration of 76 minutes 35 seconds, a conscious recovery duration of 7 minutes 1 second, and a survival rate. Survival rate Asian Redtail Catfish amounted to 94.43% of the total sample. This proves that the anesthesia of banana stem liver extract affects the survival rate of Asian Redtail Catfish with an optimum dose of 1% and further research is needed on dosing and the correlation between samples and variables.
DECOMPOSITION RATE OF LITTERFALL MANGROVE Rhizophora sp. AT SUNGAI BERSEJARAH MANGROVE AREA, KAYU ARA PERMAI VILLAGE, SUNGAI APIT DISTRICT, SIAK REGENCY, RIAU PROVINCE Hersa, Tania; Efriyeldi, Efriyeldi; Amin, Bintal
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): 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 carried out in February 2021 in the Historic River Mangrove Tourism Area, Kayu Ara Permai Village, Sungai Apit District, Siak Regency, Riau Province. This study aims to analyze the rate of decomposition of inter mangrove litter. The method used in this study is a survey method and the determination of the sampling location by purposive sampling. The rate of decomposition of mangrove leaf litter was carried out by placing 10 g of litter in a litter bag on the mangrove forest floor in three zones for 4 weeks and taken every week as a sample. The results showed that the water quality, namely the temperature ranged from 28-30°C, salinity 30-31‰, and pH 6.1-6.4. The results of the calculation of the rate of decomposition of mangrove leaves obtained an average of 0.25–0.11 g/day. The results of the Anova test showed that the rate of decomposition of mangrove leaf litter was higher in zone 1, which is relatively always inundated by tides and is affected by sea waves.
THE EFFECT OF STOCKING DENSITY OF FRESHWATER LOBSTER (Cherax quadricarinatus) THE GROWTH OF GOURAMY (Osphronemus gouramy) IN POLYCULTURE SYSTEM Safitri, Anisa Dian; Mujtahidah, Tholibah; Sari, Novita
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Polyculture is cultivation in one container that produces more than one species of fish simultaneously. The purpose of this study is to determine the effect on the growth of gouramy in polyculture system. This study uses an experimental method of Completely Randomized Design (CRD) 4 treatments and 4 repetitions that is P1 (15 species gouramy), P2 (10 species of limnetic lobster ad is species of gouramy), P3 (15 species of limnetic lobster and 15 species of gouramy), and P4 (20 species of limnetic and 15 species of gouramy). The data analysis used is analysis of variance (ANOVA) and Duncan’s Multiple Range Test (DMRT) for futher test, while the quality of water is analysed descriptively. The observation result show that different stocking density treatment affects absolute length growth of gouramy (O.gouramy). This is because the stocking density of limnetic lobster (C. quadricarinatus) is different for each treatment on gouramy (O. gouramy). The highest average result of measure ment of absolute weight growth is 1,45 ± 0,017 g. This is because the stocking density of limnetic lobster (C. quadricarinatus) at P2 is low. Low stocking density provides suitable space for gouramy to move and live. The maintenance of the polyculture system is better done with 10 species of limnetic lobster and 15 species gouramy because it makes the best absolute length and weight growth.
STAKEHOLDER AND INSTITUTIONAL ANALYSIS IN THE MANAGEMENT OF LUBUK LARANGAN TEPIAN LAMO DUSUN RANTAU PANDAN BUNGO REGENCY JAMBI PROVINCE Hertati, Rini
Asian Journal of Aquatic Sciences Vol. 5 No. 2 (2022): August
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat Universitas Riau

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

Abstract

Lubuk larangan Tepian Lamo is located in Rantau Pandan Hamlet, Bungo Regency, Jambi Province. Formed in 2015 the formation was carried out in deliberation by the community, traditional leaders and the Livestock and Fishery Service of Bungo Regency, the management of Lubuk larangan was carried out based on the customary law of the local Hamlet. Monitoring of community participation is still relatively low, namely for thoughts 18.6%, property 15.5%, expertise 13.5% and personnel 20.3%. The high energy score is evidenced by the high participation of the community in carrying out mutual cooperation for opening, closing and mutual cooperation for repairing facilities and infrastructure in the Lubuk larangan area.

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