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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.
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Articles 12 Documents
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Search results for , issue "Vol 4 No 2" : 12 Documents clear
STUDI KOMUNITAS RUMPUT LAUT DI PANTAI SANUR DAN PANTAI SAWANGAN NUSA DUA BALI GALIH INDRAWATI; I WAYAN ARTHANA; I NYOMAN MERIT
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Aims of this research are to analyze structure community population, relative population, variety domination, heterogeneous, and equality of seaweed species in Sanur and Sawangan Beach Nusa Dua.The result of the study shows that in Sanur and Sawangan Beach observed 13 related seaweed species were observed, which are: Ulva reticulata, Chaetomorpha crassa, Bornetella nitida, Halimeda macroloba, Padina australis, Sargassum binderi, Hypnea asperi, Dictyopteris sp, Gracilaria coronapifolia, Gracilaria gracilis, Acanthopora spicifera, Euchema edule, Euchema denticulatum Meanwhile, , Caulerpa racemosa, Boergesiana forbessii, Sargassum crassifolium, Gelidium sp, Turbinaria ornata, Gracilaria foliifera only observed in Sanur Beach and species of Actinotrichia fragilis, Ulva lactuca, Euchema serra, Turbinaria conoides observed in Sawangan Beach, Nusa Dua.Heterogeneous value index (H) in Sanur Beach is 0.75 – 1.87 categorized as medium category, except in station five characterized as low category. Domination index (C) is 0.10 – 0.28, where there is no dominated species. Equality index value (E) is 0.32 – 0.85 in unstable condition, except in station one is stable. In Sawangan Beach, heterogeneous indexes is 1.04 – 1.54, that spread in all stations by medium category. Domination index is 0.14 – 0.30, indicated that there is no dominant species. Equality index is 0.47 – 0.74, by stabile condition in station one, while others station is unstable. Highest relatif population in Sanur Beach is 37.63% in station three (Gracilaria foliifera). In Sawangan Nusa Dua Beach is Hypnea asperi (48.65%).Substrate analysis show that Sanur and Sawangan Beach has mud sand types. Water temperature in both research locations approximately is 28.90 C – 30.40 C, pH 7.00 – 7.80 and dissolved oxygen around 6.8mg/1-7.4mg/l.
RESIDU PESTISIDA PADA SAYURAN KUBIS (Brassica oleracea L.) DAN KACANG PANJANG ( Vigna sinensis L.) YANG DIPASARKAN DI PASAR BADUNG DENPASAR K Agung Sudewa; D N Suprapta; Dan M S Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Pesticides residue of organophosphate and carbamate i.e. diazinon, chlorpyriphos, fentoate, carbaril and BPMC were tested on cabbage (Brassica oleracea L.) and long bean (Vigna sinensis L.. The purpose of this study was to know the level of pesticides residue remaining on cabbage and long bean marketed in Badung Market, Denpasar.The samples were determined proportionally based on purposive sampling method. The proportion of sample was 10% of the total cabbage and snake bean sold in Badung market.Result of present study showed that residue of insecticides such as diazinon, chlorpyriphos, fentoate, carbaril, and BPMC remaining on the head of cabbage and snake bean marketed in Badung market was affected by the frequencies of their use in the field, in which chlorpyriphos was used by 60-65% of the farmers and carbaril by 40% of the farmers. Their residues on cabbage anf snake bean were 0.525 ppm and 1.296 ppm for chlorpyriphos (organophosphate); 0.303 ppm and 0.471 ppm for carbaril (carbamate). These result suggested that residue of chlorpyriphos on cabbage and snake bean were higher than MRL (Maximum Residue Limit) for vegetable crops, i.e. 0.5 ppm.
TINGKAT KEBISINGAN DAN TAJAM DENGAR PETUGAS GROUND HANDLING DI BANDARA NGURAH RAI BALI I W Putra Yadnya; N Adi Putra; I W Redi Aryanta
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Ngurah Rai Airport is an International Airport in Bali, this will increase the air traffic frequency and increase the number of aircraft types. This condition increases the noise risk factor which contributes to probable cause of health problem for airport workers. The objective of this study is to analyze the noise effect against hearing acurity of the ground handling staff in Ngurah Rai Airport.This cross sectional study design with 44 number of sample. The sample was taking by proportional random sampling method.The study results showed that noise level in the Administration Division was between 49.6 – 52 dBA. However, in the Technical Division at 08.00 – 16.00 was averagely between 88,3 – 90.9 dBA, at 16.00 – 24.00 was between 89.3 – 93.5 dBA and at 24.00 – 08.00 was between 69.9 – 73.2 dBA. Hearing acurity of ground handling staff in the administration division was 1 personnel (16.7 %) experienced hearing acurity depreciation. However, in the technical division, 23 personnel (60.5%) experienced hearing acurity depreciation. The staff with ? 20 years working period numbering 6 personnel (37,5%) experienced hearing acurity depreciation and staff with > 20 years working period numbering 17 personnel (77.3%) experienced hearing acurity depreciation. On the other hand, personnel that always wear hearing protective equipment numbering 7 personnel (33.3%) experienced hearing acurity depreciation and personnel who where not wear hearing protective equipment numbering 16 personnel (94.1%) experienced hearing acurity depreciation.The study concluded that noise level in the administration division was under threshold limit value, in technical division between 08.00 – 16.00 and 16.00 – 24.00 was upper threshold limit value but between 24.00 – 08.00 was under threshold limit value. There was a different hearing acurity between administration division staff and the technical division staff. The study also enlighten there was association between working period and wearing personal protective hearing.
BEHAVIOR OF THE CHANGJIANG DILUTED WATER IN THE EAST CHINA SEA OBSERVED WITH SATELLITE TRACKING DRIFTER Syful Anas; I W Kasa; I W Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

The Changjiang River is the largest river in China with an average discharge of 9x1011 m3 /year . The Changjiang river supplies about 80% of total discharge of fresh water from rivers around the Yellow Sea, East China Sea and Bohai Sea. Its monthly mean transport has a large seasonal variation from 103 m3s-1 in January to 4.8x 104 m3s-1 in July around an annual mean of 3 x104 m3s-1 , and large inter annual variation in the annual mean from 2,2x 103 to 3,5 x 103 m3s-1 during the 19-year period from 1970 to 1988 (Yanagi, 1994 ). The East China Sea Current, associated with the Changjiang discharge, flows southward along the Fujian and the Zhejiang Coast of China in winter and Northeastward to the Cheju island in summer, which forms thin low salinity plume called Changjiang Diluted Water (CDW) in summer (Breadsley. et al , 1983, 1985; Hu, 1994, Guan ,1994).CDW moves differently in season. It moves southward in winter and eastward in summer according to its salinity distribution. The relation between wind and movement of the low salinity water also has been suggested in many ways.Generally all of drifter moved northeastward at first, then after 10 days each drifter moved to different sites. Each drifter moving though velocities is about 0.1 m/s and 0.2 m/s. Most of drifters were generally moving to northeastward to the right of the wind direction at these events. It indicates that the sudden changes of drifters trajectory are caused by abrupt changes of winds.Temporal variation in salinity gradually increase during the drifters were in the moved eastward . The salinity rapidly increase during the typhoon passage. Before and after the salinity rapidly increase during typhoon passage, it was mostly constant or very gentle.The vertical velocity generated by wind just after deployment drifters for ten days in drifter deployment in 2007 was about 10-5 – 10-6 ms-1. The vertical velocity during typhoon passage on August 2007 was larger than on passed the area. It is suggested that there was significant divergence in the surface layer during the typhoon passed the area ,resulting in the larger upward vertical velocity in this region.
DISTRIBUSI CEMARAN LOGAM BERAT KROMIUM (Cr) DI SEKITAR INDUSTRI PELAPISAN LOGAM DESA SUSUT, BANGLI Siaka I M.
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

An investigation on the distribution of contamination of heavy metals chromium (Cr) in around Industrial Metal Coating at Susut Village, Bangli has been carried out. Allegedly contaminated soil by metal chromium (Cr) was analyzed by means of AAS (Atomic Absorption Spectroscopy) with prior process of digestion method using a mixture of mineral acids, HNO3 and H2O2 (1:1). It was found that, the distribution of heavy metals chromium varied according to the distance (0 – 50 m) between the pollutant sources and the sampling locations. The soils collected from West side of the industry contained Cr ranging from 13.4742 to 24.2507 mg/kg, while the soils collected from the North and South sides of the industry contained Cr of 9.9725 – 19.6718 mg/kg and 19.9415 – 25.8771 mg/kg respectively. Moreover, the distribution of Cr showed a positive correlation between depths (0 – 40 cm) and the Cr concentrations. The deeper was the soils, the higher the concentration of Cr was. The concentration of Cr ranged from 3.5022 to 30.7174 mg/kg and the highest concentration of Cr was distributed in the depth of 40 cm.
KOMPOSISI DAN STRUKTUR VEGETASI MANGROVE DI PANTAI TANJUNG BASTIAN KABUPATEN TIMOR TENGAH UTARA PROVINSI NUSA TENGGARA TIMUR LUDGARDIS LEDHENG; IPG ARDHANA; I KETUT SUNDRA
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research was carried out in Tanjung Bastian Beach, on February and March 2009. The aim of this research is to identify composition, structure and environment condition of mangrove vegetation in Tanjung Bastian Beach, North Middle East Regency, Province of Nusa Tenggara Timur.Research method used was observation and squares sampling technique that straight with beach line toward upland. Data was analyzed using vegetation analysis.The result of this research shows that Tanjung Bastian mangrove with mangrove thickness about 50 – 1000 m, arranged by 29 type mangrove vegetation which consist of 11 major mangrove, 5 minor mangrove and 13 mangrove associate. In the A location where the activity was high, Significant Value Index of plant level and highest plant, dominated by Bruguiera gymnorrhiza 79,49% and 99,88%, while for pole level and seedling, dominated by Rhizophora apiculata 106,93% and 50,02%. In B location, the highest INP of plant level, pole and seedling dominated by B. gymnorrhiza with score 62,03%; 99,57%; 108,52% and 48,22%. B. gymnorrhiza also dominates for plant level, pole and seedling in C location with each value 55,05%; 49,68%; 69,39% and 35,81%. B. gymnorrhiza is predicted to dominate mangrove trees population in the Tanjung Bastian mangrove area. This is indicated with high population of seedling level and pole in the location with medium activity level and nature forest. Vegetation Variety Index Tanjung Bastian beach mangrove range between 0.6774 -1,1513, catagorized as poor.Destruction level of mangrove vegetation in C location nature forest is still in good category, while for B and A location medium and high activity is categorized as damage mangrove forest according to SK MENLH RI No. 201 Year 2004, about Standard Criteria and Standard of Mangrove Damage Principle.Condition of basic substrate in Tanjung Bastian mangrove dominated by sandy loam with organic-C range between 0,40 -4,04%. N value, range between 0,03 -0.12%, P, 12,72 -44,47ppm, while K rate, 202,81 – 671,42 ppm. Mangrove temperature condition range between 28,87 – 30,950C, with pH rate 7,5 -8,0 and salinity range between 30 -33%o.
ESTIMATION OF PRIMARY PRODUCTIVITY FOR TUNA IN INDIAN OCEAN Ende Kasma; Takahiro Osawa; I Wayan Sandi Adnyana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Indonesia has abundant fisheries potency, one of fisheries potency in Indian Ocean is tuna fish. Primary productivity data used as indicator of tuna fisheries potency in Idian Ocean.Research location is in Indian Ocean 070 - 210 S and 1070 - 1210 E. Weekly satellite data in 2007 used are chlorophyl, sea surface temperature, Photosynthetic Available Radiation (PAR) and euphotic zone (Zeu) data. Daily fisheries data is from tuna fish catching data 2007 in PT. Perikanan Samudera Besar (PT. PSB). Satellite data is processed by Vertically Generalized Production Model (VGPM) formula to obtained primary productivity. Tuna fish catching data correlated to satellite data to know correlation of primary productivity value to fish catching data.Result of this research is there four species of tuna fish catch in Indian Ocean, that are Madidihang or Yellowfin tuna (Thunnus albacores), Bigeye tuna (Thunnus obesus), Southtern Bluefin tuna (Thunnus macoyii), and Albacore (Thunnus alalunga). Where 73% tuna fish is Bigeye tuna. Bigeye, Albacore and Yellowfin tuna are produced annually, while Southern Bluefin tuna in northwest monsoon is no fish production. Chlorophyll-a, sea surface temperature and primary productivity value in research location are from 0,06 mg/m3 to 0,38 mg/m3, from 24,640C to 31,820C, and from 73,22mgC/m2 to 658,57 mgC/m2 respectively. Coefficient correlation in primary productivity and fish catching in fishing ground area is small (r = 0.008), its explained that, fish catching number is not influenced by primary productivity. In high or low primary productivity condition tuna fish catched in Indian Ocean area. Potential fishing ground area of Bigeye tuna, Albacore, Yellowfin and Southern Bluefin tuna in Indian Ocean are in 110 – 160 S and 1060 – 1210 E, the primary productivity value is from 73 mgC/m2day to 732 mgC/m2day and differences of sea surface temperature value of tuna fish are from 240 C to 310 C, 240 C to 300 C, and 250 C to 310 C for Bigeye tuna, Albacore and Yellowfin tuna, respectively. While Southern Bluefin tuna distribution is in temperature area from 260 C to 300 C and primary productivity value is from 92 mgC/m2day to 449 mgC/m2day
PENGARUH NILAI OKTAN BAHAN BAKAR DAN PUTARAN MESIN PADA KENDARAAN BERMOTOR TERHADAP KARAKTERISTIK EMISI GAS BUANG I P Sastra Negara; I W Budiarsa Suyasa; I W Suarna
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

The air pollution that is occurring currently is main by caused by the use of motor vehicle that consequently it lead to the increasing fuel consumptions as the main source enrgy for transportation equipment. The fuel that is used in the vehicle comes in several types. In the market its differences show by the octane numbers that can contribute different effect to the environment due to their combustion processes. The road conditions through which the vehicles move are the major factors that can trigger the growth of pollution to the surrounding. It is predicted that about 70% of the air pollutions is caused by the motor vehicle emissions.This research was fully conducted in the laboratorium. Three types of fuel with different octane numbers were used in this research. Premium with octane number 88, Pertamax with octane number 92, and Biopertamax with octane number 91. The engine speeds were also varied from 500 rpm, 1000 rpm, 1500 rpm, 2000 rpm, 2500 rpm, 3000 rpm, 3500 rpm, to 4000 rpm. For every type of fuel, the engine was run five times for every engine speed in order to obtain the exhausted gas characteristics from the vehicles to the environment.The result of the research shows that at engine speed of 2500 rpm the CO emission for each type of fuel : Premium with octane number 88 is 0,415%, Pertamax with octane number 92 is 0,556%, and Biopertamax with octane number 91 is 0,273%. The octane number also effects the CO2, HC, and NOx emissions in small quantities. Statistical analysis shows both the engine speed and the octane number contribute significant effects on the exhaust emissions, the CO and HC emissions provided negative effects, while the CO2 and NOx emissions get positive effects. In comparisan to with the vehicle speed on the road from secondary data to represent the engine speed in the laboratorium, and assuming that the traffic density is identical to a factor that determining engine speed, it can be concluded that the air pollution by CO emission due to the characteristics of the road has negative influence.The octane number of the fuel and the engine speed gives a significant effect. The traffic density and the road conditions can trigger the level of the concentration of CO gas as pollutants to the surrounding air.
PERAN SERTA MASYARAKAT DALAM PELAKSANAAN AMDAL DI ERA OTONOMI DAERAH IPG. Ardhana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This Article is written with a view to know role and socialization of the autonomous municipality.This Article represent the normative legal research that is concern with legislation approach (the statute approach), case study approach (the case approach), approach by factual (the fact approach) and the approach of analisial legal concept (analytical conceptual approach) and also the bibliography approach (the library approach) that is the collection of the reading materials relaited with this topic of problems..From result of this article we can know that the role and the socialization in the automous municipality still have an illusional character and cannot fulfill clearly and accurately it’s function. Because in the arena of politics the determination process of bribes and corruptiones, so minutes which is agreed at early in the meeting or conclusiones wich is written in the minute of meeting often different from the determined public policies. To diminish these problems we extremely need the essential quarantee that socializational requiamentes or aspirationes which are integrated in the public policies must be based on partisipative statutes concerning with the autonomous municipality.
STUDI PAPARAN MEDAN MAGNET SALURAN UDARA TEGANGAN EKSTRA TINGGI (SUTET) PADA PERTUMBUHAN SAYURAN CAISIM (BRASSICA JUNCEA L) I Gede Ketut Sri Budarsa; I W Sandi Adnyana; I G. Mahardika
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 4 No 2
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

The existence of 500 kv extra high voltage transmission lines causes some area of villager’s farms to be under the transmission lines, so the research is urgently needed to see how the exposure of magnetic fields of 500 kv extra high voltage transmission lines influences the growth of plants. The aim of this research main function is to know the growth response of green mustard with the exposure to the extra high voltage magnetic field. Observation is focused on the area of leaf, amount of chlorophyll, weight of dry leaf, and net assimilation rate .The research applies completely randomized design repeated 3 times and 4 kinds of treatments with the different exposure of magnetic field. The data are quantitatively analyzed using analysis of variant method. The result of this research shows that the exposure of magnetic field influences the reduction of green mustard leaf, amount of leaf chlorophyll, net assimilation rate and the dry weight of green mustard leaf. Based on the result of the research it can be concluded that the exposure of magnetic field can reduce the growth of green mustard witch are under 500 kv extra high voltage transmission lines

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