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Ecotrophic, Journal of Environmental Science

ECOTROPHIC
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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.

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Articles 8 Documents

Search results for , issue "Vol 14 No 1 (2020)" : 8 Documents clear

UJI PEMANFAATAN AIR BUANGAN HATCHERY BUDIDAYA IKAN LAUT UNTUK PENDEDERAN IKAN KERAPU HIBRID CANTANG Apri Imam Supii; Thania Inas Aprillia; Akhmad Adi Sulianto; Novia Lusiana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Buleleng Regency has the potential to develop a hybrid cantang grouper aquaculture business. However, the cultivation business in Buleleng Regency on average does not have its own waste disposal site. Ammonia is the most dangerous content of aquaculture waste for marine life. Ammonia can cause an increase and accumulation of levels of inorganic compounds that can trigger toxins for some organisms to increase the prevalence of pathogens and certain fish diseases in the waters. One treatment that can be done in reusing wastewater is to make wastewater as a place to live fish by processing using filtration and disinfection methods, namely using silica sand media, zeolite, activated charcoal, palm fiber and ultraviolet (UV). The purpose of this study is to test the feasibility of water before and after filtration, and determine the best type of water for the Cantang hybrid grouper nursery. The method used in this research is a quantitative method using RAL (Completely Randomized Design) with three treatments and four replications. After that an analysis using ANOVA is used to determine the effect of the treatment given on the parameters tested. In the study, the water quality after filtration and disinfection treatment was better than the water quality before filtration and disinfection treatment, it can be seen in the ability of the filtration and disinfection method in reducing ammonia, nitrite and total bacterial colonies by 41.30%, 79.75%, and 76.92%, and increase the water pH and phosphate levels to 7.50 and 27.36%. In addition, the use of filtration and disinfection water can increase the survival of fish by 7.14% compared to using sea water. The survival of groupers using filtration and disinfection water is 100% while sea water is only 92.86% and wastewater is 57.14%. Filtration water can reduce bacteria compared to sea water and waste water. Except for the salinity, ammonia and phosphate parameters which still do not meet the standards. Key Word : Grouper Fish, UV Light, Water Filtration

MODEL PENGELOLAAN LINGKUNGAN DI KAWASAN PARIWISATA NUSA PENIDA, BALI Nyoman Sudipa; Made Sudiana Mahendra; Wayan Sandi Adnyana; Ida Bagus Pujaastawa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

As a regional income barn, the Nusa Penida Tourism Area needs to be managed comprehensively by involving all available resources, by encouraging new thinking about managing tourism that synergizes with environmental sustainability in the sustainable environment of the Nusa Penida Tourism Area. Tourism can increase economic growth but create a burden on the environment, so that Nusa Penida tourism becomes environmentally friendly tourism to support the development of green tourism. Progress in tourism impacts the environment, causes social and cultural changes in society and impacts the carrying capacity of land and water from the massive tourism development in Nusa Penida. For this reason, it is necessary to formulate a model of environmental management that is relevant and has been developed.This study uses a systems approach with the Interpretative Structural Modeling (ISM) method to formulate an environmental management model in the Nusa Penida Tourism Area. This method can be used to help a group, in identifying contextual relationships between sub elements of each element that forms a system based on ideas / structures or determinants in a complex problem (Saxena, 1992).The environmental management model in the Nusa Penida was formed based on government initiatives by involving all stakeholders as representatives of the Nusa Penida community and involving other elements such as non-government organizations and universities. In the management of the environment, institutional arrangements that specifically handle the environment and tourism of Nusa Penida must be formed with the government as the initiator and formed in a participatory manner. The recommended model of environmental management needs to be applied carefully and continued with the formation of institutions by involving the affected community sectors in Nusa Penida's environmental management and tourism.Keywords: tourism, model, management, environment, Nusa Penida

PRELEMINARY ANALYSIS OF CAUSE-EFFECT ON FOREST-PEATLAND FIRES PRIOR TO 2020 IN CENTRAL KALIMANTAN Nina Yulianti; Kitso Kusin; Elvi Murni; Betrixia Barbara; Daisuke Naito; Osamu Kozan; Yusurum Jagau; Ici Piter Kulu; Fengky Florante Adji; Kurniawan Eko Susetyo
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Central Kalimantan covers an area of 157,983 km2 with more than 2,000 km2 of tropical peatlands, which is one of the buffer regions of Indonesia's new capital government city. However, the sad story is the conversion of about one million hectares from peat swamp forests (PSF) to rice fields occurred in the mid-1990s, so called the Mega Rice Project (MRP). Since then, forest and peatland fires become an annual event due to high level of degradation under the climate change symptoms such the frequent of the El Niño event. In very strong El Niño of 2015, Indonesia has returned to the world spotlight in relation to the fires and the haze crisis. The most fire prone area was recorded in the iconic Tumbang Nusa, Pulang Pisau Regency and its adjecent areas. However, the thick haze had covered almost the entire province. There are the dis-adventages impact during more than two months. Therefore, this study was to investigate what are the causes and the impacts of this disaster at the site level. This research location was focuses on three regencies and one city namely Pulang Pisau, Kapuas, Katingan and Palangka City. The method was a Focus Group Discussion (FGD) with key figures representing eight clusters of village communities. This method is also supported by statistical, hotspots and spatial data for additional analysis. The result are only two villages with very high average of hotspot and eight with high average of hotspots in Pulang Pisau and Kapuas Regency. Further, the FGDs in seven villages showed that there were three main clusters that caused forest-land fires, namely natural factors, human factors and village policy / regulation factors. The villages study that were affected by the fire in 2015 showed there were three main impacts namely on people, environment and capital. This result is a foundation of cause-effect factor for further Root Cause Analysis to find out the options for fire prevention and management in climate change mitigation efforts. Keywords: Climate Change; El-Niño; Fires; Focus Group Discussion; Peatland

STATUS TERUMBU KARANG DAN IKAN KARANG DI GILI MATRA, NUSA TENGGARA BARAT Eghbert Elvan Ampou; Suciadi Catur Nugroho; Nuryani Widagti
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

This study aims to identify the status of reef fishes and coral reefs in Gili Meno, Air, and Trawangan or Gili Matra waters. This area is part of the North Lombok Regency, West Nusa Tenggara Province. Field observation was conducted on September 2011 at 11 (eleven) diving points. The video-transect method was used for observing the coral reef condition, while reef fishes abundance was observed by using visual-census method. The parameter that used to determine the condition of coral reef in study location are the percentage of live hard coral cover and index of coral mortality. In general, the result shows that percentage of live hard coral cover in each diving point ranged from 4.4% - 37.2% and the Coral Mortality Index (IMK) ranged form 0.40-0.92. The values describe that the condition of coral reef at eleven diving points vary from fair until poor condition. Current status of coral reef condition showed an insignificant increase from bad to moderate during the period 2011 -2018. There were 23 families of reef fishes from 46 genera were found during the study consisting of 16 genera of target fish groups, 5 genera of indicator fish group, and 25 genera of major fish group. The water quality is still within the limits of environmental quality standards. Keywords: Reef fish, coral reef, Mortality Index, water quality, Gili Matra

PENURUNAN KADAR BESI DAN KROMIUM LIMBAH CAIR LABORATORIUM TEKNIK LINGKUNGAN DENGAN PENGENCERAN, KOAGULASI DAN ADSOBSI Indah Nurhayati; Sela Vigiani; Dian Majid
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The purposes of this study is to examine the effect of flowrate and operating time on decreasing Fe and Cr, assessing the quality of wastewater after being treated with dilution, neutralization, coagulation and adsorption especially for the parameters Cr, Fe and pH. The variables in this study are the flow of waste water that is 100 mL / min and 140 mL / min, operating time for 60 minutes. The adsorption process is carried out continuously with down flow. Adsorbents in the form of activated zeolite and activated carbon are arranged in stages in a PVC reactor. The results of this study are 100 ml/min discharge can reduce total Fe by 99.9% from 1,767 mg/L to 0,971 mg/L and total chromium 99.2% from 48.7 mg/L to 0,39 mg/L. 140 ml/minute discharge can reduce total Fe 99.9% from 1,767 mg/L to 0.99 mg/L and total chrome 99% from 48.7 mg/L to 0.45 mg/L. Waste water quality, especially for the parameters of Cr, Fe and pH, after the treatment process have met the quality standard in accordance with Minister of Environment Regulation No. 5 of 2014 concerning Wastewater Quality Standards.

KOMBINASI TRAY AERATOR DAN FILTRASI UNTUK MENURUNKAN KADAR BESI (FE) DAN MANGAN (MN) PADA AIR SUMUR Muhammad Al Kholif; Sugito Sugito; Pungut Pungut; Joko Sutrisno
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

The problem that is often found in water well is the high content of iron (Fe) and manganese (Mn). This study aims to decrase the content of Fe and Mn in water well with aeration and filtration systems. Aeration used is a multilevel tray aerator by using a tray within 50 cm, while the filtration media used are activated carbon and zeolite sand with a height of 70 cm each. The results showed that the aeration process with tray aerator was able to reduce Fe levels up to 98.34% and Mn reached 97.40%. In the filtration process with activated carbon can reduce Fe levels by 98.48% and Mn by 98.25%. In the filtration process with zeolite sand media can reduce Fe levels by 98.43% and Mn by 97.44%.

STRUKTUR DAN SEBARAN VEGETASI MANGROVE BERDASARKAN KUALITAS LINGKUNGAN BIOFISIK DI TAMAN HUTAN RAYA NGURAH RAI BALI Ajie Imamsyah; Dietriech Geoffrey Bengen; Meutia Samira Ismet
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Mangrove are typical coastal plants whose habitat is influenced by tidal and substrate characteristics. Mangrove ecosystems have a variety of functions that can be utilized both in terms of physical, biological, and economic. Utilization of mangrove ecosystems that do not pay attention to environmental sustainability and conservation aspects cause damage of a whole coastal ecosystems. This study aims at analyze the structure and distribution of mangrove vegetation based on biophysical environment quality. This research was conducted on February until March 2017 at Ngurah Rai Forest Park Bali. The results of study show that the conditions of temperature, pH, and salinity are still in accordance with the specified quality standards, however dissolved oxygen has been classified as polluted by anthropogenic waste. The analysis of the sturcture and distribution of mangrove vegetation found that species of S. alba dominated at the location research, followed by oleh R. apiculata, R. mucronata, B. gymnorrhiza, R. stylosa, X. granatum, A. marina, and A. corniculatum. Overall, the results showed that the mangrove condition was in the damaged cateogry with a mangrove density value < 1000 ind/ha. Keywords: Coastal, Environmental, Mangrove, Vegetation

ANALISIS POTENSI PENGELOLAAN SAMPAH BERKELANJUTAN BERBASIS MASYARAKAT DI DESA SARIBAYE NUSA TENGGARA BARAT Fati Ramadhanti
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 14 No 1 (2020)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

Tourism activities are more likely to bring positive impact on the economy of the society. However, if managed poorly, the tourism activities may also bring a bad luck to the region. One of the negative impacts is the excessive unmanaged waste. The excessive waste may create problems that harm the environment and affect the society well-being. This paper aims to examine the potential of sustainable waste management practice in tourism area in Lombok, West Nusa Tenggara. This paper also intent to specifically examine the potential of community participatory aspect in sustainable waste management. This research uses Participatory Rural Appraisal (PRA) methodology to assess the primary data. Additionally, further analysis of secondary data is also added. The research is conducted in tourism area in Saribaye village, Lingsar, West Nusa Tenggara province. The results show that Saribaye village residents still lack of enviromenment awareness and the infrastructure is still far from adequate to support a sustainable management practice. However, the Saribaye village community have a high willingness to learn about the sustainable waste management practice and their current demographic structures may support the sustainable waste management development in the village.

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