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Indonesian Journal of Limnology

inajl
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Published by Masyarakat Limnologi Indonesia

ISSN : - EISSN : 27742571 DOI : https://doi.org/10.51264/inajl.v1i1.3

Core Subject : Science, Social, Engineering,

Chemical Engineering, Chemistry & Bioengineering Earth & Planetary Sciences Environmental Science

Indonesian Journal of Limnology (InaJL) is a periodical publication from the Indonesian Society of Limnology (Masyarakat Limnologi Indonesia [MLI]). Published semiannually, the journal has a goal to be a means of communication and dissemination of research results in tropical limnology. The articles in this journal examines the interaction between factors: physics, chemistry, biology, hydrology, and geology on inland waters ecosystems. Definition of inland waters here are all forms of water bodies on the surface of the earth to the landward of the line of the lowest tides either fresh or brackish water such as rivers, swamps, lakes, water, wetlands, reservoirs, ponds, and dams. Focus and Scope InaJL publishes research articles and reviews about all aspects of tropical limnology including theory, experiments, instrumentation or modelling. Papers can cover the following subject areas, which are used to categorize manuscripts: Physical Limnology Chemical Limnology Biological Limnology Paleo-Limnology Aquatic Ecology Aquatic Toxicology Ecohydrology Aquaculture Aquatic Environmental Engineering Inland Waters Management Hydroinformatics Socio-Limnology

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Perairan

Articles 49 Documents

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An Overview of Macrophytes in The Tropical Wetland Ecosystem Muzzalifah Abd Hamid; Siti Norasikin Ismail; Mashhor Mansor
Indonesian Journal of Limnology Vol. 2 No. 1 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Macrophytes are plants that adapted to wet environment and easily be found all over the world. Macrophytes have structures that are more complex, interdependent and physically substantial; make them one of the important components of rivers, lakes and any other wetland ecosystems. Macrophytes can be categorized into four different types; emergent, floating-leaved, submerged and free-floating plants based on their structure and life form. Light, water current and wind flow are among the most important limiting factors of macrophytes occurrence in the water system. Environmental conditions such as lotic and lentic environment influence the limiting factors and would be the key for successful macrophytes distribution. Each macrophyte species could respond differently to different environmental circumstances. It also has been widely used as subject for biological indicator of ecosystem health. This paper aimed to describe the general environmental condition for macrophytes distribution, discuss their role and impact of excessive growth.

Ichthyofauna Checklist in Tributaries of Muda Reservoir, Kedah, Peninsular Malaysia Nor Aziella Mohd Rosli; Nurul Shafikah Mohd Noor; Khaironizam Md Zain
Indonesian Journal of Limnology Vol. 2 No. 1 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Ichthyofauna checklist was scrutinized in tributaries of Muda Reservoir. A total of 5998 specimens were caught using a cast net of 2.5 cm mesh size. Amongst these specimen, 30 fish species from 12 families were recorded. The most dominant fish family in this lotic ecosystem was Cyprinidae. Rasbora dusonensis, Cyclocheilichthys apogon and Mystacoleucus marginatus recorded the uppermost distribution compared to other fish species found in this tributaries. Six fish species were the newly recorded species found in tributaries of Muda Reservoir; Barbonymus gonionotus, Luciosoma setigerum, Toxabramis houdemeri, Mystus singaringan, Anabas testudineus and Trichopodus pectoralis. In accordance with the previous combination of recorded fish species in tributaries of Muda Reservoir, a total of 57 updated total numbers of fish species were recorded. The information obtained in present study will update the latest ichthyofauna checklist in tributaries of Muda Reservoir, as well as for the future comparison in other geographical locations.

Impact of Rapid Tourism Growth on Water Scarcity in Bali, Indonesia Eva Mia Siska Yamamoto; Takahiro Sayama; Kaoru Takara
Indonesian Journal of Limnology Vol. 2 No. 1 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Despite Bali’s dependency on tourism, concerns over the impact of tourism on water scarcity are increasing. The objective of this study is to analyze the clean water demand related to tourism growth and compare them with the available clean water supply. This study suggested that tourism water demand has increased by 20.8 million m3 (295%) from 1988 to 2013. Sixty-eight percent of the increase was concentrated in Badung Regency, where the tourism water demand ratio has increased from 31% to 46%. The study also suggested that rapid population growth has caused an increase in domestic water demand by 48.3 million m3 (48%). This study also shows that the capacity of clean water supply in Bali has increased significantly to meet these demands and the water supply coverage of domestic water demand has increased significantly from 13% in 1988 to 53% in 2013. The water supply coverage of tourism demand varies from year to year with an average of 28% in the study period. The increasing issues over water scarcity despite the improvement in the coverage of domestic water demand suggest further investigations. Yet, despite the large gap between supply and demand in the tourism sector the industry still can have undisrupted clean water throughout the year. This indicates the use of alternative clean water which can be obtained locally such as groundwater. Wise water management through the sharing of scientific data, including in the tourism sector is imperative in solving water scarcity in Bali. Keywords: clean water demand, water scarcity, Badung Regency

Physical-Chemical Characteristic and Trophic Status of Some Small Lakes in Ciliwung Watershed, West Java Indonesia Siti Aisyah; Sulastri Sulastri; Rahmi Dina; Mey Ristanti Widoretno
Indonesian Journal of Limnology Vol. 2 No. 2 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Small lakes are important freshwater resources to support the quality of human life. However, small lakes in the watershed are becoming threatened ecosystems because of increasing land-use changes and anthropogenic activity. The study aimed to determine characteristic physical-chemical parameters and trophic status some small lake in Ciliwung Watershed to support the sustainable management of small lakes in the Ciliwung watershed in preventing eutrophication effects. The data was collected in April and June 2021. Measurement and analysis of water quality parameters were conducted by insitu and Laboratory. Some parameters were not in accordance with the Government Regulation number 22/2021 for class II water quality criteria (WQC), including TSS (>50 mg.L-1)., TP (>0.03 mg.L-1), COD (>25 mg.L-1) and DO (<3 mg.L-1), especially for Lake Sunter and Lake Cincin.There are two groups of lakes based on water quality and trophic status. Lake Telaga Warna Lake Cikaret, and Lake Cilodong were classified as eutrophic while lake Sunter and Lake Cincin were classified as hypereutrophic lake Lake Telaga Warna, Lake Cikaret, and Lake Cilodong, located at the upper and middle watershed, are eutrophic, characterized by deeper bottom and higher Secchi depth. At the lower watershed, Lake Sunter and Lake Cincin are hypereutrophic characterized by higher nutrients (TN and TP), COD, temperature, conductivity, salinity, and TDS. The downstream area was a densely populated area that contributed high pollution from upstream and middle of Ciliwung watershed.

Identification of Rainfall and Inundation pattern using remotely sensed data in Lake Sentarum Floodplain Area Fajar Setiawan; Iwan Ridwansyah; Luki Subehi
Indonesian Journal of Limnology Vol. 2 No. 2 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Wetlands are vulnerable natural habitats that should be preserved to protect habitat for fish and wildlife, flood mitigation, improve water quality, recharge area, and maintain surface water flow during dry periods. Water bodies and swamp areas are two primary components of the wetland. Considering its essential roles for the ecosystem, Lake Sentarum was set as a national park area (Lake Sentarum National Park – TNDS), Indonesia's 15 national priority lakes, and; designated as a Ramsar site (The Convention on Wetlands) in Indonesia. Despite the significant roles for the ecosystem, providing the limnological characteristic of Lake Sentarum remains a challenge due to its remote location. This study aims to identify the rainfall and inundation characteristics in the Lake Sentarum area and develop the rainfall-inundation relationship in the TNDS area. First, we carried out rainfall analysis using the Climate Forecast System Reanalysis (CFSR) data. Second, we utilized a remote-sensing-based global surface water map from the Joint Research Centre (JRC) to describe the historical inundation pattern. Third, we applied the Normalized Different Water Index (NDWI) combined with Modification Normalized Different Water Index (MNDWI) to the selected Landsat dataset to extract the inundation area. Finally, we developed a rainfall-inundation relationship in the TNDS area. The result indicated that the yearly rainfall in the TNDS area has an increasing trend, with the highest peak in December and the second peak in April. Historical Landsat data shows that the TNDS has a complex pattern of inundation. The maximum water extent was 649 km2, with a 95 km2 as permanent (90>- 100 % water occurrence). These areas were constantly flooded, even in the dry season. The most significant non-permanent water was 161 km2 (80>- 90 % water occurrence). This permanent and larger temporary water area provides fish and other aquatic biotas habitats. It temporarily stores the water flowing slowly into the River Kapuas through the Tawang River. We captured the spatial inundation pattern and its relationship with the temporal regional rainfall. The developed relationship showed a lag of -60 days of accumulated rainfall correlated with the inundation area (R2 of 0.48, n=11). These findings will thus provide valuable data for lake managers and policy-makers to protect the biota and habitat in Lake Sentarum National Park area.

Structure and Distribution of Macrobenthos Community in Code River, Yogyakarta, Indonesia Ratih Ida Adharini; Putri Latifa Arumsari
Indonesian Journal of Limnology Vol. 2 No. 2 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

This research aimed to explore the community structure of macrobenthos in Code River, Yogyakarta. This research was conducted during December 2019-January 2020 in Code River, Yogyakarta. Data was taken 4 times in 6 stations. Macrobenthos was taken using a Surber net with a size of 30 x 30 cm and sampling at 5 spots in each station. Data analysis consisted of density, diversity index, dominance index, and evenness index. Water quality data consisted of water temperature, flow velocity, water depth, water pH, dissolved oxygen, and organic matter. The results showed that the density of macrobenthos ranged from 54-172 ind/m2. Our results showed that Code River has moderate diversity based on the Shannon-Wiener diversity index. Sulcospira testudinaria is the most dominant species in Code River. The evenness index showed high except at station 2 which was categorized as moderate. Code River has pretty good water quality, but stations 3, 4, and 5 which are located in the city area, it has a high organic matter content.

The Water Quality and Trophic Status of Koto Panjang Reservoir, Indonesia Dina Muthmainnah; Aroef Hukmanan Rais
Indonesian Journal of Limnology Vol. 2 No. 2 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Koto Panjang Reservoir is one of the hydroelectric power plants in Indonesia, located in Kampar Regency, Riau Province. This paper aims to determine the water quality and tropic status of the Koto Panjang Reservoir. The research was carried out along the Koto Panjang Reservoir, covering the floating net cages area, inlet, outlet, and the center of the reservoir. Water samples were collected twice a year, February and September 2017. The results showed that the water quality of Koto Panjang reservoir is still within the tolerance range for the aquatic organisms' life, including fish. Based on the TSI analysis, the Koto Panjang Reservoir throphic status was categorized as eutrophic to heavy eutrophic. This study recommends that relocating floating net cages is necessary so that the nutrient load will not only be concentrated in one location. The efficiency of using the feed for floating net cages could minimize the waste.

The Impact of Water Quality Detorioration in Mangrove Forest in Semarang Coastal Area Kenanga Sari; Tri Retnaningsih Soeprobowati
Indonesian Journal of Limnology Vol. 2 No. 2 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

The fast-growing development and industrialization have caused various impacts on nature including heavy metal pollution, especially in the coastal area. Tambakredjo, located in the North Semarang city, is home to a large number of mangrove and animal species. Therefore, water quality is important. This study was conducted to analyze water quality in the coastal area of Tambakredjo based on physical and chemical measurements. Water quality data were collected from different sites. Physical parameters (temperature, pH, DO, EC, TDS, ORP and salinity) and chemical parameters (Total N, Total P, Pb, Cr, Cd) were observed. Multivariate statistical techniques, including Principal Component Analysis (PCA), was applied to evaluate water quality. The results showed first principal component is 76.27%, where the highest conductivity, total dissolved solids and salinity are associated with site 1. Content of Lead 1.289 ppm, Cadmium 0.021 ppm, and Chromium 0.352 ppm exceeds the water quality standard PP. No. 82/2001. It indicated that Site 1 was characterized as the most heavily polluted site because the location received pollutants from rivers and oceans. This study also examined the short-term changes of the mangrove-covered area at the side of Banjir Kanal Timur using historical map satellite images. The results show that mangrove coverage in Tambakredjo near the aquaculture area had decreased from 1,875m2 to 1,401m2. Meanwhile, on the other site, the mangrove planting effort as a restoration program is carried out, especially in the estuary of Banjir Kanal Timur to anticipate more environmental changes.

Acute Toxicity of NH4Cl to Tambra Fish (Tor Tambroides) Fry Gunawan Pratama Yoga; Kristin Noni Riyanti Buraen; Sutanto Sutanto
Indonesian Journal of Limnology Vol. 2 No. 2 (2021): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

Ammonia is one of the nutrient wastes products which can be toxic to all vertebrates, including fish. Usually, ammonia toxicity is expressed as Total Ammonia Nitrogen (TAN, mgN/L). Tambra fish (Tor tambroides) is freshwater fish with important economic value in some areas in Indonesia. According to overfishing and forest degradation, the fish has become threatened. This research aimed to calculate the LC50 value of ammonia to Tambra fish (Tor tambroides) and estimate NOEC, LOEC, and MATC values of ammonia to Tambra fish (Tor tambroides). This study was conducted using the static test method with two steps. The first stage is a preliminary test, where the preliminary test is observed for 24 hours With five concentrations excluding control. Whereas in the second stage that is carried out, observation for 96 hours with four concentrations excluding control. The Probit test is Performed to obtain LC50 value results, then proceed with ammonia analysis using the Salicylate Test Kit method. The results showed that ammonia had acute toxicity with LC50-96 hour value of NH4Cl against Tambra fish fry (Tor tambroides) in the amount of 354.615 mg/L. Ammonia caused acute toxicity to Tambra fish fry (Tor tambroides).The LC50-96 hour value was 354.615 mg/L in the form of Total Ammonia Nitrogen (TAN) or it was equivalent to un-ionized Ammonia (NH3) of 9.8937 mg/L, while values of the Lowest Observed Effect Concentration (LOEC) and No Observed Effect Concentration (NOEC) of ammonia on Tambra fish (Tor tambroides) were 578.24 mg/L and 280.18 mg/L, respectively.

Watershed Health Assessment Using GIS and AHP Methods: Application in Stung Sen River Basin, Cambodia Koemsreang Ka; Ty Sok; Sovatey Lim; Ilan Ich; Ratboren Chan; Layheang Song; Pinnera Ket; Chantha Oeurng
Indonesian Journal of Limnology Vol. 3 No. 1 (2022): Indonesian Journal of Limnology
Publisher : Indonesian Society of Limnology

The watershed assessment provides information about the condition of water quality and biological integrity to identify the source of stressors and their impacts. In the present decades, different watershed assessment method has been established to evaluate the cumulative impacts of human activities on watershed health and aquatic systems. This study proposes a new approach for assessing watershed vulnerability to contamination based on spatial analysis using the Geographic Information System (GIS). and Analytic Hierarchy Process (AHP) methods. This new procedure designed to identify vulnerable zones depends on seven basic factors representing watershed characteristics: land use/land cover, sediment load, nitrate load, phosphorus load, soil type, average annual precipitation, and slope. The new watershed vulnerability assessment technique was used to create a map showing the relative vulnerabilities of specific sub-watersheds in the Sen River Basin, the largest sub-basin of the Tonle Sap Lake. The results showed a remarkable difference in watershed susceptibility between the sub-watersheds in their vulnerability to pollution. The approximate area of 10,846 km2 (76%) in the Northwest part and the long distance from the river of the study area were categorized in a range from moderate, low, and very low watershed vulnerability. However, consisting 3,341 km2 (24%) located downstream and near distance from the river were displayed as a very high and high vulnerability to pollution in the watershed. Furthermore, the results of the evaluation of the predictive reliability of the watershed vulnerability assessment method revealed that the proposed approach is suitable as a decision-making tool to predict watershed health. The process of this study indeed provides an application performance for the Sen River Basin and calls for action to sustain the water ecosystem and use.

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Ali Rahmat

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Pusat Riset Limnologi dan Sumber Daya Air – BRIN Kompleks CSC (Cibinong Science Center) Jalan Raya Jakarta Bogor km. 46 Cibinong, Bogor Jawa Barat, 16911- Indonesia

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Kota bogor,

Jawa barat

INDONESIA

Abstract

Abstract

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Abstract

Abstract

Abstract

Abstract

Abstract

Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Ali Rahmat

Contact Email alirahmat911@gmail.com

Phone +6282278231661

Journal Mail Official inajl.mli2022@gmail.com

Editorial Address Pusat Riset Limnologi dan Sumber Daya Air – BRIN Kompleks CSC (Cibinong Science Center) Jalan Raya Jakarta Bogor km. 46 Cibinong, Bogor Jawa Barat, 16911- Indonesia

Location Kota bogor, Jawa barat INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Ali Rahmat

Contact Email
alirahmat911@gmail.com

Phone
+6282278231661

Journal Mail Official
inajl.mli2022@gmail.com

Editorial Address
Pusat Riset Limnologi dan Sumber Daya Air – BRIN Kompleks CSC (Cibinong Science Center) Jalan Raya Jakarta Bogor km. 46 Cibinong, Bogor Jawa Barat, 16911- Indonesia

Location
Kota bogor,

Jawa barat

INDONESIA