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Ecotrophic, Journal of Environmental Science
Published by Universitas Udayana
ISSN : 19075626     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
Ecotrophic, Journal of Environmental Science (ISSN : 1907-5626) atau yang disingkat EJES, merupakan media publikasi bagi hasil-hasil penelitian, artikel dan resensi buku dibidang ilmu lingkungan. EJES adalah peer-reviewed dan open access jurnal, diterbitkan dua kali setahun yaitu bulan Mei dan September oleh Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Udayana.
Arjuna Subject : -
Articles 359 Documents
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POTENSI BANJIR BANDANG MENGGUNAKAN ANALISIS MORFOMETRI DI DAERAH ALIRAN SUNGAI KLAGISON KOTA SORONG Anif Farida; Mierta Dwangga
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i01.p07

Abstract

Flash flood is water level increases rapidly in the river beyond flood level and occurs due to extreme weather. It's happened quickly without warning. The Klagison Watershed in Sorong City has grown rapidly and often had flooded. Settlements dominate almost on watershed areas and there are many hills that are deforested due to mining activities upstream. This study aims to examine the morphometric conditions and to analyze the spatial distribution of the potential flash flood in the Klagison Watershed of Sorong City based on morphometric analysis. GIS is used to obtain morphometric parameters such as linear, relief and aerial parameters. The correlation coefficient between each morphometric parameter was calculated using Pearson Correlation. Determination of potential flash flood areas using the priority zone formula. The result shows that the Klagison watershed has high erosion potential and large runoff based on morphometric analysis. This can be seen in the high value of the texture ratio (T) and low Constant channel maintenance (C) so that the runoff volume is also large. The Lof value in all sub-watersheds is small, which means that surface runoff will quickly to the channel. The flash flood potential in the Klagison watershed is very low (Sub-watershed 1 and Sub-watershed 5), moderate (Sub-watershed 3 and Sub-watershed 4), high (Sub-watershed 2) and very high (Sub-watershed 6 and Sub-watershed 7). It means that Sub-watershed 2, Sub-watershed 6 and Sub-watershed 7 need management priorities related to disaster mitigation. Keywords: flash flood; morphometry; watershed
EFEKTIVITAS PEMANFAATAN KULTUR LOKAL DALAM BIOREAKTOR PENGOLAHAN AIR LIMBAH KERAJINAN ENDEK Ni Made Tia Juliasari; I Wayan Budiarsa Suyasa; I Nyoman Rai
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i01.p03

Abstract

Endek is one of the fabrics that are in demand by local and foreign people. The distinctive pattern of this endek cloth continues to develop while still paying attention to the authenticity of the endek motives from Bali so that it is easily recognized by the public, however, in its production, it produces waste that causes environmental pollution therefore it needs to be managed. One of the easy and efficient textile waste management is a bioreactor by utilizing local culture. Local cultures are indicated as indigenous microorganisms originating from the waste itself. The purpose of this study is to analyze the effectiveness of local cultures in bioreactors in improving wastewater quality and analyze the effectiveness of using local microbial cultures in bioreactors for treating endek wastewater. This study applied a quantitative approach with experimental methods. The processing begins with the growth of biofilms to determine the biomass profile using the Mixed Liquor Suspended Solid (MLSS) method, then the color waste water is stored in an anaerobic reservoir for 24 hours then tested and then processing, later it is inundated for 1 hour before parameter measurement. The parameters tested were COD levels, color content and pH. Based on the results of the study, the optimum MLSS value obtained in the seeding process was 4490 mg/L on the 7th day and the biofilm growth biomass profile of 3240 mg/L on the 22nd day. The utilization of local microbial culture in the bioreactor in this study was effective in reducing the color content parameter by 77% at processing times of 384 and 408 hours, and decreasing pH was only effective at processing time of 6 hours and reducing COD was not effective. Keywords : endek wastewater, local culture, bioreactor, effectivenes
EFEKTIVITAS MIKROALGA Chlorella vulgaris DAN Spirulina plantensis DALAM BIOSORPSI LOGAM NIKEL DI PERAIRAN (KASUS PERAIRAN POMALAA KABUPATEN KOLAKA) Ahmad Zakir; I Wayan Budiarsa Suyasa; Ida Ayu Astarini
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i01.p08

Abstract

Mining and nickel processing activities in Pomalaa, Kolaka Regency have an impact on the condition of coastal waters. Several researchers who have conducted research in the area stated that the Pomalaa coast has been polluted by the presence of nickel metal so that there is an initiative to reduce the impact of Ni in the waters by bioremediation of the microalgae Chlorella vulgaris and Spirulina platensis. This study aims to analyze the growth of microalgae types C. vulgaris and S. platensis cultured on media containing nickel with different concentrations and also to determine the ability of microalgae to reduce nickel heavy metals at different concentrations. This research was carried out at the Fisheries Laboratory of Haluoleo University , while the AAS (Atomic Absorption Spectrophotometric) analysis was carried out at the Kendari Environmental Laboratory UPTD Laboratory on January – May 2021. The results of the analysis showed that there was a significant difference in the growth density of microalgae cells (C. vulgaris and S. platensis) which were given the treatment/concentration. Ni different. The absorption capacity of C. vulgaris ranged from 0.73 to 4.97 mg/l, while s. platensis ranged from 0.082 – 2.11 mg/l. C. vulgaris is superior in reducing nickel because C. vulgaris can live in polluted water conditions. Keywords: Bioremediation; Nickel; C. vulgaris; S. platensis.
POTENSI PENCEMAR DAN KUALITAS MATA AIR PENIDA DAN GUYANGAN SEBAGAI SUMBER BAKU AIR MINUM DI NUSA PENIDA Nyoman Sudipa; Ni Putu Suda Nurjani
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i01.p04

Abstract

Water is an essential requirement for human life. Maintain water availability, both in terms of quality and quantity, in relation to the surrounding environmental conditions. The socio-cultural conditions of the people of Nusa Penida are very much influenced by the presence of water, even social conflicts occur because of the water crisis. The main problem with drinking water raw sources is the availability of water sources which continues to decline from year to year, while water demand continues to increase due to population growth. Areas that have limited water resources will cause economic resources to be used to meet water needs. As an area that has limited water resources, Nusa Penida has springs that are mostly difficult to reach and access by the community. Two springs with quite large discharge are Penida Spring and Guyangan Spring which have been distributed to the community and to fulfill tourism needs. This study aims to determine the feasibility of Penida and Guyangan Springs as a source of drinking water based on Governor of Bali Regulation Number 16 of 2016 concerning Environmental Quality Standards and Standard Criteria for Environmental Damage and to determine the potential sources of pollutants for these two springs. This study uses a quantitative approach combined with primary data sources from direct observations in the field and uses secondary data sources from literature and previous research. The results showed that the Penida and Guyangan Springs were in good condition and met quality standards. Potential sources of pollutants from Penida Springs come from residential activities and tourism activities, while Guyangan Springs does not have pollutants because they are located in a place that is difficult to reach and is in the bowels of Nusa Penida Island. Keywords: springs, standards, quality, pollutants, Nusa Penida
ANALISIS DAYA DUKUNG MONKEY FOREST UBUD SEBAGAI DAYA TARIK WISATA BERKELANJUTAN Niken Prameswari Putri; I Nyoman Rai; A.A.P Agung Suryawan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 1 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i01.p09

Abstract

Monkey Forest Ubud is located in the Padang Tegal Village, Ubud District. The area of ????the tourism forest is about 12.5 ha. Tourism activities at Monkey Forest Ubud tend to be mass tourism activities. This study aims to measure the position of the effective carrying capacity of Monkey Forest Ubud based on biotic and abiotic variables, perceptions of tourism actors (tourists and management) towards tourism activities, condition of facilities and infrastructure and management of Monkey Forest Ubud, as well as alternative strategies for the realization of environmental sustainability and tourism. The method used to analyze the carrying capacity of the environment according to Cifuentes, drafting alternative sustainable management strategies for Monkey Forest Ubud with QSPM analysis. The results of the carrying capacity analysis show the ECC of 257 people/day. The average tourist visit in 2010-2019 reached 1,784 people/day, exceeding the ECC value indicates a threat to the biotic and abiotic factors that affect it. Alternative strategies resulting from the QSPM analysis for the realization of sustainable tourism with a score of 4.88 are alternative tourism in the form of educational tours in the Yadnya forest and event procurement in non-forest areas, the second strategy with a score of 4.86 is to maximize the digital marketing function, namely buying tickets online with providing daily visit quotas for tourist restrictions, the third strategy with a score of 4.66 is to increase ticket prices by 50% from normal tickets.The existence of the Ubud Monkey Forest has a positive impact on the social and economic aspects of the Padang Tegal Village community, but environmental sustainability needs to be considered, one of which is the restriction of tourist visits. Keywords: carrying capacity, sustainable tourism, Quantitative Strategy Planning Matrix
PENGELOLAAN BERKELANJUTAN PERIKANAN TANGKAP IKAN SARDINELLA DI PERAIRAN JEMBRANA BERDASARKAN ANALISIS SWOT DAN ANALYTICAL HIERARCHICAL PROSESS (AHP) DI KABUPATEN JEMBRANA Komang Bayu Permana; I Wayan Arthana; I Gede Hendrawan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p07

Abstract

This research aimed to examine and analyze the problems that occur in the management of sustainable captured fisheries, especially Sardinella fish in Jembrana Regency, in order to determine alternative strategies in management through SWOT analysis and Priority scale through Analytical Hierarch Process (AHP). The alternative determination of the sustainable management strategy of lemuru fish based on SWOT analysis includes IFAS matrix, with a strength score of 1.51 and a weakness of 1.26, the difference between a strengths and weaknesses value of 0.25 (x). The EFAS matrix has an opportunity score of 1.59 and a threat score of 1.30, the difference between the opportunity and threat factors is 0.29 (y). SWOT analysis diagram is located in quadrant one, which is a progressive strategy or SO Strategy using all the power available to echieve or get the greatest opportunity. Policy Determination based on AHP for sustainable management of lemuru fish in Jembrana Regency, Criterion 7 becomes the first priority with a value of 22%, namely cooperating with relevant agencies related to data and information collection of reliable and integrated capture fisheries in accordance with technological developments, in order to streamline activities and maximize the catch. Keywords: AHP, Fisheries Management, Sustainable, SWOT analysis.
FITOREMEDIASI LIMBAH DOMESTIK (Greywater) MENGGUNAKAN TANAMAN MELATI AIR (Echinodorus palaefolius) DAN ECENG GONDOK (Eichornia crassipes) UNTUK MENURUNKAN KONSENTRASI BOD, COD DAN AMONIA Nisa Nurhidayanti; Helbi Nurul Huda; Dodit Ardiatma
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p03

Abstract

Sustainable development can lead to an increase in the amount of wastewater produced from industrial waste and household domestic wastewater which contains materials/substances that can endanger human life and disrupt environmental sustainability. The aim of this research is to determine the optimum concentration of domestic wastewater for growth of water jasmine and water hyacinth and to determine the effectiveness of the phytoremediation method using plants water jasmine (Echinodorus palaefolius) and water hyacinth (Eichornia crassipes) in reducing concentrations of BOD, COD and ammonia in domestic greywater wastewater. The stages of the research method began with sampling waste water, testing wastewater, acclimatization of plants, range finding test / phytoreactor test and continued with data analysis. The results of the test parameters of domestic greywater waste for 7 days obtained the final value of COD is 0.50 mg/L, BOD is 0 mg/L, and Ammonia is 0 mg/L. Based on the research results obtained the effectiveness of reducing COD concentrations by 99.65%; BOD of 100%; and 100% ammonia. This shows that the use of the phytoremediation method using water jasmine and water hyacinth is very effective in reducing the levels of BOD, COD and ammonia in domestic greywater wastewater and has met the quality standards for domestic wastewater. Keywords: Phytoremediation, Domestic Greywater, Water Jasmine, Water Hyacinth
ESTIMASI SIMPANAN KARBON PADA BIOMASSA MANGROVE DI TAHURA NGURAH RAI Ni Luh Putu Ratih Pravitha; I Wayan Gede Astawa Karang; Made Suartana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p08

Abstract

Mangroves contribute to mitigating climate change by storing carbon. As mangrove forests have a high rate of carbon sequestration and storage, carbon stock calculations are required to quantify the accumulation of carbon stored in a site to determine its involvement in decreasing greenhouse gas emissions. This study aims to estimate carbon storage at the Mangrove Information Center (MIC) by using an allometric calculation of the mangrove above-ground biomass data. Data collection was carried out on January 10-14, 2022 at the MIC, with an area of 322 ha. The method used is a 1000 meters line transect plot divided into 15 measuring plots in three mangrove ecological zones (front, middle, and back). Biomass data were taken in a non-destructive way based on measurements of the circumference girth at breast height (GBH) and the results were calculated using allometric. According to data analysis, the average total surface biomass of mangroves in MIC is 781.30 kg, with estimated carbon storage in MIC is 36,727 tons/ha. Overall, the total carbon stock in the stratum MIC is 11.826,253 tons. The highest estimated carbon storage is in Plot 9, which is 91,799 tons/ha, while the lowest estimated carbon storage is in Plot 2, which is 13,873 tons/ha. The high numbers of carbon storage from mangrove above-ground biomass are mostly found in the middle and front zones because of the very dense mangrove density. Keywords: mangrove; above-ground carbon estimation; climate change mitigation
KOMPOSISI JENIS DAN KONDISI MANGROVE DI TELUK GILIMANUK, TAMAN NASIONAL BALI BARAT Miftachudin Syaiful Ma'ruf; I Wayan Arthana; Ni Made Ernawati
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p04

Abstract

Mangrove ecosystems have an important role, both for biota and humans. The level of density and mangrove cover is one illustration to determine the level of damage to mangroves. This study aims to determine the species composition and the level of mangrove damage based on the density and percentage of canopy cover of mangroves in Gilimanuk Bay. This research was conducted in February 2021. The determination of the sampling point was carried out using the purposive sampling method. Mangrove data retrieval was performed using a plot 10x10 m2 with a total number of plots were 31 plots. The results showed that there were 11 types of mangroves from 7 different families in Gilimanuk Bay. The most common type of mangrove found was Ceriops tagal (45,84 %) and the least was Xylocarpus granatum (0,13 %). Mangrove density in Gilimanuk Bay is 2390,32 ind/ha, and canopy cover is 83,84%, which shows that the condition of mangroves in Gilimanuk Bay is included in the good category (very dense). Keywords: Mangrove; Gilimanuk Bay; Density; Canopy coverage
ANALISIS KELIMPAHAN MIKROPLASTIK PADA BIVALVIA DI PERAIRAN TUMINTING DAN MALALAYANG KOTA MANADO Nikita Ribka Kawung; I Wayan Sandi Adnyana; I Gede Hendrawan
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 16 No 2 (2022)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/EJES.2022.v16.i02.p09

Abstract

Microplastic as a marine debris is currently become a global problem. Tuminting and Malalayang coasts as the study case in this research because these places were located in the high population and anthropogenic activity areas, that allowing the microplastic pollution. The goal of this research are to identify the types of microplastic, to analyze the abundance of microplastic and to evaluate the differences accumulation of microplastic in bivalve from Tuminting and Malalayang, Manado. This research is used a purposive sampling method. The analysis of microplastic in bivalves following C. M. Boerger et al. (2010) methods. The average of microplastic for the three species of bivalve in Tuminting for Cardidae sp. Was 5.75 particles/g, Venridae sp. 17.05 particles/g and Mytilidae sp. 130.06 particles/g, while in the three species of bivalve in Malalayang for Cardidae sp. 50.87 particles/g, Venridae sp. 9.56 particles/g and Mytilidae sp. 6.93 particles/g. Based on Kruskal Wallis analysis for bivalve of Tuminting is 0.087; Malalayang 0.616. The bivalve morphometric correlation test using Spearman Rank analysis showed a result 0.05 for Tuminting and 0.187 for Malalayang. The microplastics types that found in bivalve are fragments, films, fibers, foam, pellets, granules and the highest one is fiber. In this study, abundance of microplastic in bivalve from Tuminting also Malalayang waters, were found so it was necessary to disseminate this information to the public about the dangers of plastic. There must be a government regulations regarding the coastal area management related to garbage waste and have to make another research about the identification of the chemical that containing in microplastic in bivalves. Keywords: marine debris; microplastics; bivalve; manado

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