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Jooudie Nooldie Luntungan
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ekoton@unsrat.ac.id
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ekoton@unsrat.ac.id
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Pusat Penelitian Lingkungan Hidup dan Sumberdaya Alam (PPLH-SDA), LPPM. Jl. Kampus Bahu Univeritas Sam Ratulangi - Manado 95115
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Kota manado,
Sulawesi utara
INDONESIA
EKOTON
Published by Universitas Sam Ratulangi
ISSN : 14123487     EISSN : 30317622     DOI : 10.35801
Core Subject : Agriculture, Social,
Agriculture, Biological Sciences & Forestry Environmental Science
EKOTON adalah jurnal ilmiah yang diterbitkan oleh Pusat Penelitian Lingkungan Hidup & Sumberdaya Alam (PPLH-SDA) Lembaga Penelitian, Universitas Sam Ratulangi. Jurnal Ekoton terbit 2 (dua) kali setiap tahun (April dan Oktober). Jurnal Ekoton memuat kajian-kajian tentang lingkungan Hidup dan Sumberdaya Alam. Kajian-kajian tersebut meliputi aspek perencanaan, perlindungan dan pengelolaan lingkungan hidup dan sumberdaya alam (SDA)
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Ilmu Lingkungan (Lain-Lain)
Articles 10 Documents
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Search results for , issue "Vol. 3 No. 2 (2014): Juli - Desember 2014" : 10 Documents clear
PENGELOLAAN PENCEMARAN UDARA AKIBAT TRANSPORTASI DI KAWASAN PERUMAHAN DI PINGGIRAN METROPOLITAN Timbul Panjaitan, dkk
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35801/ekoton.v10i1.296

Abstract

Pembangunan perumahan di perkotaan metropolitan berkembang sangat pesat terutama di daerah pinggiran metropolitan. Pembangunan ini menyebabkan pertumbuhan kebutuhan transportasi yang cukup tinggi karena para penghuni perumahan di pinggiran kota tersebut masih membutuhkan perjalanan ke pusat kota untuk bekerja, belajar dan aktivitas-aktivitas lainnya, yang apabila tidak dikelola dengan baik akanmenimbulkan permasalahan dikemudian hari. Penelitian ini mencoba untuk membuat model pengelolaan pencemaran lingkungan yang diakibatkan oleh transportasi dari kawasan perumahan di pinggiran kota metropolitan khususnya di kota metropolitan Bandung yaitu pada kawasan perumahan Setiabudi Regensi, Perumahan Graha Puspa dan Perumahan Trinity, dengan berpegang pada prinsip pengelolaan transportasi berkelanjutan yang salah satu unsurnya yaitu untuk mengurangi kemungkinan timbulnya pencemaran udara dan kebisingan yang diakibatkan oleh transportasi di kawasan tersebut pada masa mendatang.Dari data pertumbuhan volume lalu lintas dan tingkat kualitas udara ambien di lokasi studi, diperoleh fraksi masing-masing pencemar udara dan fraksi kebisingan yang ditimbulkan oleh transportasi di kawasan perumahan/permukiman tersebut. Berdasarkan data pertumbuhan volume lalu lintas tersebut dapat dibuat model pertumbuhan volume lalu lintas dan pertambahan tingkat pencemarannya.Peneliti mengambil data primer berupa bangkitan dan tarikan lalu lintas yang ada pada saat penelitian berlangsung, kemudian dilengkapi dengan data sekunder dari penelitian sebelumnya yang telah dibuat struktur model pengelolaan transportasinya. Dari struktur model yang dibangun dapat dilihat perilaku model yaitu perilaku pencemaran udara yang akan ditimbulkan pada masa yang akan datang (sampai dengan tahun 2040). Perilaku model ini dapat dipakai sebagai dasar pembuatan kebijakan transportasi yaitu dengan mengekang tingkat pertumbuhan volume lalu lintas sehingga sampai dengan tahun 2040 indeks pencemaran udara masih pada tingkat yang aman.
PENANGKAPAN IKAN KARANG OLEH NELAYAN LOKAL BERDASARKAN “MAKANAN KEBIASAAN” DI TAMAN NASIONAL BUNAKEN, MANADO Farnis Boneka
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Population of coral polyp eaters such as Acanthaster planci and Drupella cornus increases in Bunaken National Park recently. It might be related to increasing fishing intensity around coral reefs which may reduce fish predators. The objective of the present research is to inventory fishes catched by local fishermen and to describe feeding categories of fish for tracing predation source. Fish were bough from local fishermen between May-July 2008, brought to the marine laboratory for stomach analysis. Feeding categories of fish were analyzed based on food items. A numbers of 69 fish species obtained by means of spear gun (jubi), hand-line (pancing) and gill net (soma, jaring insang). About 42,03 % of fish were carnivores, 30.44% herbivores and 27.53% omnivores. Carnivore fish catched around Bunaken National Park consit of Labridae, Carangidae, Serranidae, Lethrinidae, Sillaginidae, Nemipteridae, Apogonidae, Muraenidae, Pinguipedidae. Omnivores are Balistidae, Lutjanidae and Monochantidae. Food items identified mainly crustacean, polychaetes, fish and mollusk shells. There has not been found fractions of both coral polyp predators on the fish stomachs. Predation on D. cornus and A. plancii may occur during the larval stage.
ENDAPAN MERKURI (Hg) DI MUARA SUNGAI KIMA DAN TALAWAAN DARI KEGIATAN PERTAMBANGAN EMAS RAKYAT DI KABUPATEN MINAHASA UTARA Markus T. Lasut
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Mercury (Hg) discharge through the artisanal gold mining activities is one of the environmental concerns due to its emission that may follows natural methylation of mercury to result environmental contamination with an impact in human health. To assess Hg deposit from such activities, sampling was carried out in a watershed area of Talawaan, North Minahasa Regency, where that type of mining are widely occurred. The sampling was focused at the river mouth of Kima and Talawaan inside the watershed. Moisture concent (MC) and total mercury (THg) on dry weight basis were measured in the sampled sediments. The results show that the MC of the samples in both rivers varied based on their sampling points; the average was 0.30 (30%) in Kima and 0.25 (25%) in Talawaan. The concentration of THg found in sediment of Kima river mouth was uniform from one point to the others. Conversely, it was forming a gradient in the Talawaan where the concentrations decreased at the points close to the beach. In Kima river mouth, the lowest and the highest THg concentrations were found at Point B and A, respectively; while its average concentration was 0.871 mg/kg. In Talawaan river mouth, the lowest and the highest concentration of THg were found at Point B and A, respectively. The average concentration of THg in this area was 0.383 mgkg. Comparing the results within the areas, the concentration of THg found at Talawaan river mouth was higher than Kima.
STUDI KADAR SENG PADA SUMUR GALI DI KECAMATAN DIMEMBE, KABUPATEN MINAHASA UTARA Aaltje E. Manampiring
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Seng (Zn) merupakan logam esensial yang dapat di temukan di udara, air, tanah bahkan pada makanan. Seng juga merupakan salah satu parameter kimia anorganik yang dibutuhkan oleh tubuh untuk proses metabolisme sekitar 4-14 mg per hari, apabila di konsumsi kurang dari atau lebih dari konsentrasi maka akan menimbulkan gangguan pada kesehatan. Pada studi ini akan dilaporkan kadar seng pada sumur gali masyarakat di 2 desa yaitu desa Dimembe dan desa Laikit yg ada di kecamatan Dimembe, serta untuk mengetahui apakah kadar seng pada sumur gali masyarakat telah memenuhi syarat atau tidak dengan metode penelitian observasional di lapangan, dengan analisis datanya bersifat deskriptif analitik. Pengumpulan data penelitian dilakukan secara crosssectional. Pengambilan sampel menggunakan teknik Simple Random Sampling. Sebanyak 40 sampel air sumur gali yang didapat dari rumus Single Mean dan di uji melalui pemeriksaan laboratorium dengan metode spektrofotometri serapan atom (AAS). Hasil penelitian menunjukkan bahwa kadar seng yang terkandung pada sumur gali di Desa Laikit dan Dimembe bervariasi, namun tidak jauh berbeda nilainya antara sumur satu dengan sumur yang lainnya. Kandungan seng pada sumur gali masyarakat Desa Laikit berkisar antara 0,020 mg/l – 0,052 mg/l dengan rata-rata 0,032 (sd ± 0,0142) sedangkan kadar seng yang diperiksa di sumur gali masyarakat Desa Dimembe berkisar antara 0,019 mg/l dengan rata-rata 0,046 dan (sd ± 0,0349). Berdasarkan hasil itulah dapat disimpulkan bahwa kadar seng pada sumur gali di Desa Laikit dan Dimembe memenuhi syarat air bersih yaitu nilainya tidak melebihi batas maksimum yaitu 15 mg/l.
HUBUNGAN ANTARA PEKERJA LAS LISTRIK DENGAN KEJADIAN KATARAK PADA BEBERAPA BENGKEL LAS DI KOTA MANADO Fransiska Lintong
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Electrical welding is the metal joining process by using electrical power as the source of heat. During the welding process a very sharp light will occur that endanger the workers and other people nearby the welding site. These lights include the visible light, ultraviolet, and infrared. The ultraviolet and infrared lights are the physical factors that could create a disease to the eyes, particulary cataract. The aim of this research was to identify the relationship between the Electrical Welding Workers with the Incidence of Cataract in Manado. This work is an observational research with cross – sectional design. The research locations were Makmur Jaya (Wanea District), Esi Advertising (Mapanget District), Rapi Jaya, and Sinar Karya (Tikala District) welding workshops. The research subject were 40 electrical welding workers (exposed) and 20 not electrical welding workers (unexposed) that fulfilled the inclusion criterion. The data was collected through the interview by using questionaire and a special examination of eyes by an Ophthalmologist. To examine the cataract loupe and Slit Lamp were used. The data were analyzed by using Fisher Exact Test. The result of statistic analysis by using Fisher Exact Test showed that there was no a significant relationship between the electrical welding workers with the incidence of cataract in Manado ( p = 0,289).
TRANSFERABILITAS MODEL DISTRIBUSI SPASIAL PALEM LOKAL SULAWESI Wiske Rotinsulu
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

The aim of this study was to test transferability of the predictive models developed in North Sulawesi site using internal data dan external data (Buton island located on the south east coast of the mainland of Sulawesi). Logisitic regression method was used to build the predictive model. Three native palms of Sulawesi namely Pigafetta elata, Areca vestiaria, and Caryota sp were selected in this study. The relationship between environmental variables (e.g. derived from a Geographic Information System (GIS) and Remote Sensing (RS)) and each native palm species occurrence was quantified by the model. Several environmental parameters reflecting land cover, topographic features (elevation, slope and aspect), soil and socio-economic (accessibility) served as predictor variables. Model performance was measured by sensitivity (Sn), specificity (Sp), overall accuracy (S), Kappa statistic and Area Under the Curve (AUC). Predictive models of spatial distribution of the three native palm species were successfully developed using logistic regression method. Using the internal dataset, all models showed greater than 90% overall accuracy at predicting presence or absence which indicates that all models gave good performance. However, using Kappa index, the performance of the logistic regression model was poor. AUC values derived from the ROC procedure showed that the performance of all models was excellent. Nevertheless, when tested on Buton Island, overall prediction accuracy was low. Kappa statistic (0.06 to 0.24) also showed that none of the models performed adequately. It is obvious that predictive ability of the models evaluated with external data from a different island was low. This implies that transferring the models to other regions is not advisable. Unmodelled ecological-relevant processes and algorithmic error are suggested to be the reasons behind the poor transferability of the predictive models.
PENGARUH TINGKAT KEPADATAN DAN KANDUNGAN LIAT TANAH TERHADAP PERMEABILITAS TANAH DI LOKASI PERTAMBANGAN (Lokasi Penambangan PT. Avocet Bolaang Mongondow Bakan, Kabupaten Bolaang Mongondow) Bobby J. Polii
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Tanah adalah suatu tempat berlangsungnya berbagai aktivitas kegiatan manusia. Salah satu kegiatan manusia dalam pembangunan antara lain di sektor pertambangan, yaitu pembuatan bantal lindian (leach pad). Leach pad adalah tempat penumpukan dan pengolahan bijih emas, yang dibuat dengan cara memadatkan lapisan tanah liat sehingga lapisan tersebut memiliki permeabilitas sangat lambat (10-9-10-12m/det). Leach Pad dibangun pada kegiatan pertambangan dan tempat pembuangan akhir (TPA) sampah dengan maksud untuk menahan/memperlambat aliran vertikal larutan tanah yang mengandung bahan-bahan kimia berbahaya. Dengan cara ini, jika terjadi kebocoran pada sistem pengelolaan limbah tambang dan tempat pembuangan air (TPA), bahan-bahan kimia berbahaya tersebut akan mengalami perubahan secara kimia dan secara biologis sebelum mencapai muka air tanah (ground water). Dalam pembuatan leach pad sifat-sifat fisik tanah perlu diperhatikan, karena berhubungan dengan kapasitas penyimpanan air, kekokohan dan kekuatan pendukung, drainase yang semuanya secara erat berkaitan dengan kondisi fisik tanah. Salah satu sifat fisik tanah yang penting dalam hal ini adalah permeabilitas tanah.Kata-kata Kunci
PERKEMBANGAN DAN PERILAKU PENEMPELAN LARVA GASTROPODA ABALON TROPIS Medy Ompi
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Abalones release gametes in the water column, where eggs are fertilized. Fertilized eggs are develop into throchophore, veliger, and pediveliger larvae. Larvae will be in the water column up to three days, then it will go down into the sea bottom to settle, metamoprhose, and developed to be juvenile and adult of abalone. A penempelan is transition phase, where mortality rate is very hight. Larvae will search for suitable substrata, where larval behaviour, substrat quality, and current are important factors. Larval abalone will refuse to settle and swim back into water column, when substrata are not suitable. Substarta such as rock, dead coral, dead and branching coral, hard substrata covered by micro algae are favourable substrata for larva abalone to settle. Larvae of marine abalones have varying in swiming speed. These larvae can be trasported by current to a long the beach and also off shore. For abalone tropis H varia, the current speed less than 5 cm per second can stimulate larva Abalone tropis such as H varia to settle.
SEJARAH PERKEMBANGAN NERACA SUMBERDAYA ALAM DAN LINGKUNGAN DI INDONESIA M. Suparmoko
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Salah satu kegiatan yang perlu dilaksanakan dalam memelihara sumberdaya alam dan lingkungan hidup untuk menjamin adanya pembangunan yang berkelanjutan adalah penyusunan neraca sumberdaya alam dan lingkungan. Dangan diketahuinya neraca sumberdaya alam, maka indikator pembangunan yang ditunjukan produk domestik bruto akan manjadi lebih sempurna, karena akan benar-benar menunjukkan kapasitas potensi pembangunan yang dimiliki oleh suatu negara.
PENILAIAN KESESUAIAN LINGKUNGAN SOSIAL MASYARAKAT DALAM EVALUASI LAHAN TPA SAMPAH Zetly E. Tamod
EKOTON Vol. 3 No. 2 (2014): Juli - Desember 2014
Publisher : PPLH-SDA, Lembaga Penelitian Unsrat Manado

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Abstract

Evaluating the land for Waste TPA (disposal site) has been conducted through comparing the physical land and public response in which the result will be grouped in three classes of compatibility: compatible, relatively compatible, and incompatible. Results of land compatibility assessment constitute a basis to determine (recommend) the location of Waste TPA. Social environment compatibility rate must be included within the measurement together with public response on planning or evaluating stages of Waste TPA location. This assessment emphasizes on education or knowledge rate and public perception on Waste TPA, health rate, and the role. The results, hence, enter into three classes of responses: positive, neutral, and negative.

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