bluuebunny/crossref_metadata_2025 huggingface dataset:
Barcode DNA Tumbuhan Pangi (Pangium edule R.) Berdasarkan Gen matK
Authors: Bangol Irmi , Momuat Lidya Irma , Kumaunang Maureen
Published: July 2019

DNA barcoding merupakan suatu teknik yang digunakan untuk mempercepat dan mempermudah proses identifikasi organisme dengan menggunakan potongan gen tertentu. Penelitian ini bertujuan untuk menentukan sekuens DNA barcode tumbuhan pangi berdasarkan gen standar matK dan membandingkannya dengan spesies yang berkerabat dekat di GenBank. DNA total daun pangi diisolasi menggunakan Innuprep plant DNA kit dan berhasil diamplifikasi dengan proses Polymerase Chain Reaction (PCR) menggunakan primer berdasarkan gen matK. Hasil sekuensing fragmen DNA yang menunjukkan panjang 720 bp yang teramplifikasi oleh primer forward dan 780 bp untuk yang teramplifikasi oleh primer reverse. Hasil analisis BLASTn menunjukkan tingkat kemiripan tumbuhan pangi sangat tinggi dengan Trichadenia zeylanical, yaitu 99%, dan diikuti spesies lainnya (Kiggelaria africanal, 98%; Guthriea capensis, 96%; Acharia tragodes, 92%; Erythrospermum phytolaccoides, 92%; Hydnocarpus sp. Chase 1301, 90%; Carpotroche longifolia, 89%; Moultonianthus leembruggianus, 89% dan Pimelodendron zoanthogyne, 88%). Analisis komposisi asam amino menunjukkan bahwa matK Pangium edule dan kesembilan spesies tumbuhan lainnya bersifat hidrofobik.DNA barcoding is a technical used to accelerate and simplify the process identification of organism with by using a snipping of specific genes. This study aimed to determine the DNA sequences of plant barcoding standard pangi based gene matK and compare with closely related species in GenBank. Total DNA was isolated using Innuprep pangi leaf plant DNA kit and successfully amplified by the Polymerase Chain Reaction (PCR) using primers based on the gene matK. The results of sequencing long DNA fragments showed7 20 bp are amplified by the forward primer and 780 bp were amplified by the primer for reverse. Blast analysis of the results showed very extremely high the plant pangi degree of similarity with Trichadenia zeylanical, namely99%, and followed by other species (Kiggelaria africanal, 98%; Guthriea capensis, 96%; Acharia tragodes, 92%; Erythrospermum phytolaccoides, 92%; Hydnocarpus sp. Chase 1301, 90%; Carpotroche longifolia, 89%; Moultonianthus leembruggianus, 89% dan Pimelodendron zoanthogyne, 88%). Analysis of aminoacid composition showed that matK Pangium edule and nine other plant species are hydrophobic.
Persamaan Diophantine Tipe Ramanujan-Nagell x2 = yn + 2185
Authors: Mananohas Mans L.
Published: July 2019

Dalam tulisannya di tahun 2014, Ulas mengajukan sebuah konjektur mengenai solusi bilangan bulat positif dari persamaan Ramanujan-Nagell x2 = yn + 2185. Di sini penulis termotivasi untuk melakukan penelitian lanjutan mengenai konjektur tersebut. Setelah dilakukan penelitian penulis berhasil membuktikan bahwa untuk kasus n bilangan genap solusinya adalah (x,y,n) = (59,6,4) dan (x,y,n) = (221,6,6), sementara untuk kasus n = 3 dengan x genap terbukti hanya terdapat satu pasangan solusi persamaan (x,y) = (248,39). Akan tetapi, untuk kasus n = 3 dengan x bilangan ganjil diatas belum diperoleh hasil yang memuaskan sehingga sangat perlu dilakukan penelitian lanjutan.On his paper in 2014, Ulas suggests a conjecture about positive integer solutions of equation Ramanujan-Nagell x2 = yn + 2185. In this paper, writer is motivated to conduct advanced research about the conjecture. In this research, writer has successfully proven that in case of n equals even number, the solutions are (x,y,n) = (59,6,4) dan (x,y,n) = (221,6,6), while in case of n = 3 with x is even number, it is proven that there is only one pair solution, that is (x,y) = (248,39). However, for n = 3 case with x is odd number, the satisfied result is not found yet, so the further research has to be done.
Inventarisasi Jenis Pohon Pada Cagar Alam Gunung Ambang, Sulawesi Utara
Authors: Embo Akbar Arafah , Koneri Roni , . Saroyo , Papu Adelfia
Published: July 2019

Pohon sebagai penyusun utama kawasan hutan berperan penting dalam pengaturan tata air, cadangan plasma nutfah, penyangga kehidupan, sumber daya pembangunan dan sumber devisa Negara. Peranan pohon-pohon dalam komunitas hutan semakin sulit dipertahankan mengingat tekanan masyarakat terhadap kelompok tumbuhan dari waktu ke waktu terus meningkat.Penelitian ini bertujuan untuk mengkaji jenis-jenis pohon yang berada di kawasan Cagar Alam Gunung Ambang, Sulawesi Utara. Metode penelitian yang digunakan yaitu metode garis berpetak yang merupakan modifiksi dari metode petak atau plot ganda dan metode jalur. Tipe habitat yang dijadikan titik pengambilan sampel adalah hutan primer dan hutan sekunder. Hasil pengamatan diperoleh sebanyak 38 jenis pohon penyusun hutan di Gunung Ambang yang termasuk dalam 22 suku. Pada hutan primer disusun oleh 37 jenis dan 22 suku, sedangkan pada hutan sekunder terdiri dari 28 jenis yang termasuk dalam 18 suku. Jenis pohon yang mendominasi setiap lokasi penelitian yaitu suku Magnoliaceae dan Arecaceae.Tree as the main constituent of forests play an important role in water regulation, germplasm reserves, life support, development resources and the country's foreign exchange resources. The role of trees in the forest communities are difficult to be sustained because the people pressure increase on the trees day by day. This study aims to assess the types of trees that are in the nature reserve area of ​​Gunung Ambang, North Sulawesi. The method used is the line transect plots that is modified  from the plot method or a double plot and track method. The type of habitat that is used as the starting sampling point is the  primary forests and secondary forests. Result of observations showed that Gunung Ambang is composed by 38 species of plant in 22 family. In the primary forest composed by 37 species and 22 Family, whereas in secondary forest consists of 28 species in 18 family. Types of trees that dominate each research location are Family Magnoliaceae and  Family Arecaceae.
Perubahan Kualitas Bakasang Ikan Malalugis (Decapterus kurroides) Selama Penyimpanan
Authors: Sani Irene V. , Fatimah Feti , Kamu Vanda S.
Published: July 2019

Telah dilakukan penelitian tentang kualitas bakasang ikan malalugis (Decapterus kurroides) selama penyimpanan. Adapun kajian yang dilakukan meliputi pengujian kadar air dengan metode oven, kadar lemak dengan metode soxhletasi, serta kadar protein dengan metode kjeldahl. Berdasarkan pengujian yang dilakukan didapatkan kadar air bakasang hasil penelitian semakin meningkat selama penyimpanan dari minggu pertama sampai minggu ke empat yaitu sebesar 13,5% - 26,5%. Kandungan protein bakasang hasil penelitian menurun selama penyimpanan dari minggu pertama sampai minggu ke empat yaitu berkisar antara 4,666% - 3,855%. Sedangkan kadar lemak bakasang hasil penelitian semakin menurun yaitu berkisar antara 27,23% - 20,97%. Hasil penelitian menunjukkan lama penyimpanan mempengaruhi kualitas bakasang.A research about the quality of the fish bakasang malalugis (Decapterus kurroides) during storage bakasang. The study was conducted on the testing of water content by oven method, fat content by soxhletasi method,  and protein content by the Kjeldahl method. Based on tests found the water content of research bakasang was increasing during storage of the first week to the fourth week was equal to 13.5% - 26.5%. Protein content of research bakasang results was decreasing during storage from the first week to the fourth week in range between 4.666% - 3.855%. Fat content of bakasang research was decreasing in range between 27.23% - 20.97%. The results showed storage time affects the quality bakasang.
Perancangan Sistem Node Jaringan Sensor Nirkabel (JSN) Topologi Point to Point Berbasis Mikrokontroler dan RF Transceiver
Authors: Mosey Handy Indra Regain
Published: July 2019

Penelitian ini membahas tentang perancangan dan konstruksi node Jaringan Sensor Nirkabel (JSN) dengan topologi point to point berbasis mikrokontroler dan RF Transceiver. Penelitan dilakukan dengan metode eksperimen yakni membangun dua buah node sensor (client dan server) yang dapat berkomunikasi secara nirkabel. Pengiriman data sensor diatur melalui program yang ditanam pada mikrokontroler agar bereaksi sesuai dengan data bacaan sebuah sensor analog. Hasil eksperimen menunjukan bahwa node sensor yang dibangun dapat berkomunikasi dengan baik dan node sensor bereaksi sesuai kode program.This study discusses the design and construction of  Wireless Sensor Networks (WSN) nodes based on microcontroller and RF Transceiver with  point to point topologies. Research is carried out by an experimental method that is to build two sensor nodes (client and server) which can communicate wirelessly. Sensor reading data are set via a program embedded in the microcontroller to react according to the data reading from an analog sensor. The experimental results shows that the sensor nodes can communicate well and react according to the sensor node embedded code.
Aktivitas Ekstrak Buah Tomat (Lycopersicum esculentum Mill) Sebagai Penstabil Oksigen Singlet Dalam Reaksi Fotooksidasi Asam Linoleat
Authors: Maong Reynal , Rorong Johnly Alfreds , Fatimah Feti
Published: July 2019

Telah dilakukan penelitian untuk menentukan aktivitas ekstrak buah tomat apel dan tomat biasa sebagai penstabil oksigen singlet terhadap fotooksidasi asam linoleat dengan menggunakan cahaya dan eritrosin. Sampel yang digunakan adalah buah segar dari tomat apel dan tomat biasa. Penelitian ini dilakukan dengan cara ekstraksi menggunakan pelarut air panas dan etanol selama 2x24 jam. Ekstrak tomat apel dengan pelarut etanol (ETA) dan air (ATA) memiliki peroksida berturut-turut sebesar 5.738 dan 6.228 mek/kg, sedangkan ekstrak tomat biasa dengan pelarut etanol (ETB) dan air (ATB) memiliki nilai peroksida sebesar 8.677 dan 7.024 mek/kg. Ekstrak tomat apel dengan pelarut etanol (ETA) memiliki potensi penstabil oksigen singlet yang paling besar dan potensi yang paling kecil adalah ekstrak tomat biasa dengan pelarut etanol (ETB). Semakin kecil angka peroksida dari ekstrak tomat apel dan tomat biasa, semakin besar potensi penstabil oksigen singlet yang dimiliki.
Penerapan Model ARIMA dalam Memprediksi Jumlah Tindak Kriminalitas di Wilayah POLRESTA Manado Provinsi Sulawesi UtaraKlorofil
Authors: Mendome Karmelin , Nainggolan Nelson , Kekenusa John
Published: July 2019

Tujuan penelitian ini adalah menentukan model Autoregressive Integrated Moving Average (ARIMA) untuk memprediksi  jumlah kejadian tindak kriminalitas di Wilayah Kepolisian Resort Kota (POLRESTA) Manado. Data yang digunakan adalah data bulanan  jumlah kejadian tindak kriminalitas dari bulan Januari 2010 sampai Mei 2016. Hasil penelitian menunjukan Model ARIMA (1,1,0) cukup baik untuk memprediksi jumlah kejadian tindak  kriminalitas di Wilayah POLRESTA Manado dengan  presentase rata-rata dari nilai selisih antara nilai aktual dan nilai prediksi sebesar 13,81 %.  Untuk prediksi jumlah kejadian tindak kriminalitas pada bulan Juni, Juli dan Agustus tahun 2016 menunjukkan pola yang menurun.The purpose of this study was determining the model Autoregressive Integrated Moving Average (ARIMA) to predict the number of occurrences of crime in the Territory Police Resort City Manado. The data used are the monthly data of the number of occurrences of crime from January 2010 to May 2016.  The results showed that the ARIMA (1,1,0) well enough to predict the number of occurrences of crime in the Territory POLRESTA Manado with a percentage of the average of the value of the difference between the actual value and the predictive value of 13.81%. The prediction of the number of incidents of crime in June, July and August 2016 showed a declining pattern
Analisis Anisotropi Suseptibilitas Magnetik Batuan Beku Lengan Utara Sulawesi
Authors: Rongkonusa Melisa , Tamuntuan Gerald , Pasau Guntur
Published: July 2019

Telah dilakukan  penelitian untuk menentukan pola anisotropi suseptibilitas magnetik dan status singkapan batuan beku dari pola yang diperoleh. Pengukuran anisotropi suseptibilitas magnetic dilakukan pada lima sampel batuan beku dari Sulawesi Utara menggunakan Bartington MS2B. Arah pengukuran sampel disesuaikan dengan desain Tauxe. Hasilnya menunjukkan bahwa suseptibilitas maksimum terdistribusi disekitar  arah  utara dan timur. Sedangkan suseptibilitas intermediet dan minimum terdistribusi disekitar Utara-Timur dan Timur-Selatan. Elipsoida suseptibilitas  cenderung  prolate atau lebih lonjong. Batuan beku yang dianalisis merupakan kelompok batuan terobosan yang mekanisme lelehannya terjadi secara vertikal.A research has been conducted to determine the anisotropic pattern of magnetic susceptibility and the status of igneous rocks exposure from the obtained pattern. We have measured the anisotropy of magnetic susceptibility on five samples of igneous rock from North Sulawesi by Bartington MS2B. The position of samples were adjusted according to the Tauxe’s design. The result shows that the maximum susceptibility is distributed around northward and eastward, while the intermediate and minimum susceptibility are distributed around nortward-eastward and eastward-southward. The susceptibility ellipsoid tends to be prolate or more oval. This shows that the igneous rocks that have been analyzed are group of intrusive rocks which melting mechanism occurs through vertical fracture.enetie
Respon Pertumbuhan Vegetatif Tiga Varietas Tanaman Sawi (Brassica Juncea L.) pada Kultur Teknik Hidroponik Rakit Apung
Authors: Rangian Sartika D. , Pelealu Johanis J. , Baideng Eva L.
Published: July 2019

Indonesia merupakan negara tropis dengan kondisi lingkungan yang kurang menunjang, seperti curah hujan yang tinggi. Permasalahan yang berkaitan dengan curah hujan, penggunaan pupuk yang boros, pengendalian hama dan penyakit serta dampak penggunaan pestisida yang tak terkendali memunculkan suatu alternatif lain dalam budidaya pertumbuhan tanaman. Budidaya tanaman dengan hidroponik teknik rakit apung adalah suatu cara bertanam tanpa media tanah dan menawarkan solusi yang mudah dipraktekkan. Penelitian ini bertujuan untuk mengukur pertumbuhan tinggi tanaman, jumlah daun, lebar daun, berat kering dan berat basah, tanaman sawi varietas Shinta, Tosakan dan Dakota sebagai respon yang dikultur pada teknik hidroponik rakit apung. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) non faktorial dengan 3 (tiga) perlakuan dan  sembilan kali ulangan sehingga total sampel tanaman yang diamati sebanyak 27 tanaman. Hasil penelitian menunjukkan bahwa varietas Tosakan memberikan nilai tertinggi pada pertambahan tinggi tanaman 32,58 cm, lebar daun 4,62 cm, berat basah 19,30 gr dan berat kering 1,03 gr sedangkan varietas Shinta menunjukkan jumlah daun yang paling banyak sebesar 12,77 daun dan varietas Dakota memberikan nilai terendah dalam semua nilai parameter yang diukur. Berdasarkan hal tersebut maka varietas Tosakan adalah sawi yang memberi respon pertumbuhan yang lebih baik pada teknik hidroponik rakit apung.Indonesia is a tropical country with a less supportive of environmental conditions, such as high rainfall. Problems related to rainfall, the wasteful use of fertilizers, pest and disease control as well as the impact of uncontrolled pesticide use led to an alternative to the cultivation of plant growth. Hydroponic cultivation with floating rafts technique is a way of farming without soil media and offer a solution that is easy practiced. This study aims to measure the growth of plant height, leaf number, leaf width, dry weight and wet weight, Shinta varieties of mustard plants, Tosakan and cultured Dakota in response to the floating raft hydroponic techniques. This study uses Rancanan Acak Lenkap (RAL) Non factorial with 3 (three) treatments and nine replications so that the total sample of plants observed was 27 plants. The results showed that the varieties Tosakan provide the highest value added 32,58 cm plant height, leaf width 4,62 cm, 19,30 g wet weight and dry weight of 1,03 grams while the Shinta varieties shows the number of leaves at most equal to 12,77 leaves and Dakota varieties provide the lowest value in all measured parameter values. Based on this case, the Tosakan variety is a mustard which gives a better growth response to the floating hydroponic raft technique.
Simulasi Penjalaran Gelombang Tsunami di Sofifi– Tidore Kepulauan Maluku Utara sebagai Upaya Mitigasi Bencana
Authors: Sumtaki Mellisa Inggried , Pasau Guntur , Tongkukut Seni H.J.
Published: July 2019

Telah dilakukan simulasi penjalaran gelombang tsunami di Sofifi – Tidore Kepulauan Maluku Utara untuk mengetahui waktu tiba dan tinggi gelombang tsunami yang menerjang pantai apabila gempa yang diikuti tsunami kembali terjadi. Simulasi menggunakan perangkat lunak WinITDB dengan memasukkan koordinat sumber tsunami, koordinat daerah yang akan diterjang tsunami, panjang patahan, lebar patahan dan deformasi dasar laut dari data gempa yang pernah menimbulkan tsunami. Hasil simulasi menunjukkan bahwa daerah Sofifi termasuk dalam klasifikasi tsunami yang cukup berbahaya dengan tinggi gelombang 0,5 m ≤ H ≤ 1,5 m dan waktu minimum gelombang tsunami mencapai pantai adalah 36 menit.A simulation of tsunami wave transmission in Sofifi – Tidore archipelago, North Maluku has been done to know the arrival time and the height of tsunami wave that hits the coast if an earthquake that followed by tsunami reoccurs. The simulation is carried out using software WinITDB by inputting the coordinate of tsunami source, coordinate of the region that will be hit by the tsunami, the length and the width of the fracture, and the seafloor deformation from the data of earthquakes that ever triggered tsunamis. The result shows that Sofifi region is classified as fairly-dangerous with tsunami waveheight of 0,5m ≤ H ≤ 1,5m and minimum time lapse for the tsunami wave to reach the coast is 36 minutes.
Identifikasi Potensi Cekungan Air Tanah Di Universitas Sam Ratulangi Menggunakan Eksplorasi Geolistrik Tahanan Jenis
Authors: - As'ari , Tongkukut Seni H.J.
Published: July 2019

Peningkatan pembangunan gedung-gedung di Kampus Universitas Sam Ratulangi akan berdampak pada proses peresapan air ke dalam tanah, dan akan mempengaruhi siklus hidrologi di bawah permukan tanah. Kebutuhan air tanah semakin meningkat dari tahun ke tahun. Telah dilakukan pemetaaan untuk memperoleh potensi cekungan lapisan pembawa air tanah dengan arah Utara – Selatan di Kampus Universitas Sam Ratulangi Manado. Pengukuran menggunakan metode geolistrik tahanan jenis konfigurasi Wenner-Schlumberger. Pengukuran dilakukan pada 5 lintasan, 48 elektroda dan spasi elektroda 10 m, menggunakan resistivitymeter MAE X612 EM. Data pengukuran diolah menggunakan software RES2DINV, hasil pengolahan berupa tampang lintang 2 dimensi. Akuifer air tanah dengan resistivitas ≤ 10 Ωm, potensi akumulasi akuifer air tanah besar ditemukan di : lintasan 1 pada elektroda ke 24 – 35 (meter ke 240 – 350)dengan kedalaman ≥ 20 m, lintasan 2 pada elektroda 23 – 30 (meter ke 230 – 300) dengan kedalaman 5 – 25 m.Peningkatan pembangunan gedung-gedung di Kampus Universitas Sam Ratulangi akan berdampak pada proses peresapan air ke dalam tanah, dan akan mempengaruhi siklus hidrologi di bawah permukan tanah. Kebutuhan air tanah semakin meningkat dari tahun ke tahun. Telah dilakukan pemetaaan untuk memperoleh potensi cekungan lapisan pembawa air tanah dengan arah Utara – Selatan di Kampus Universitas Sam Ratulangi Manado. Pengukuran menggunakan metode geolistrik tahanan jenis konfigurasi Wenner-Schlumberger. Pengukuran dilakukan pada 5 lintasan, 48 elektroda dan spasi elektroda 10 m, menggunakan resistivitymeter MAE X612 EM. Data pengukuran diolah menggunakan software RES2DINV, hasil pengolahan berupa tampang lintang 2 dimensi. Akuifer air tanah dengan resistivitas ≤ 10 Ωm, potensi akumulasi akuifer air tanah besar ditemukan di : lintasan 1 pada elektroda ke 24 – 35 (meter ke 240 – 350)dengan kedalaman ≥ 20 m, lintasan 2 pada elektroda 23 – 30 (meter ke 230 – 300) dengan kedalaman 5 – 25 m.
Kinetika Fotodegradasi Remazol Yellow Menggunakan Fotokatalis ZnO dan ZnO-Ag
Authors: Taringan Agres K. , Wuntu Audy D. , Aritonang Henry F.
Published: July 2019

Telah dilakukan penelitian tentang kinetika fotodegradasi remazol yellow dengan menggunakan ZnO dan ZnO yang disisipi 1%, 3%, 5%, 7%, dan 9% Ag yang disintesis dengan metode kopresipitasi. Eksperimen kinetika dilakukan melalui penentuan konsentrasi remazol yellow yang tersisa setelah interaksi ZnO dan ZnO-Ag dengan larutan remazol yellow yang disinari UV selama 0, 20, 40, 60, 80, 100, 120 dan 140 menit. Selanjutnya data dianalisis mengikuti model kinetika reaksi orde pertama. Hasil penelitian menunjukkan bahwa laju reaksi fotodegradasi oleh ZnO meningkat dengan penambahan konsentrasi dopan AgA research on photodegradation kinetics of remazol yellow using ZnO and Ag-doped ZnO (1, 3, 5, 7 and 9 wt% Ag) synthesized by co-precipitation method had been studied. Kinetics experiment was performed by determining the concentration of remazol yellow remained after interaction of ZnO and ZnO-Ag with remazol yellow solution that were irradiated by UV-light at 0, 20, 40, 60, 80, 100, 120 and 140 minutes. Data obtained was analyzed using firs-order kinetics model. The results showed that photodegradation rate was increased with the increasing Ag concentration.
Pemanfaatan Tumbuhan Obat Oleh Etnis Sahu dan Loloda Di Halmahera Barat, Maluku Utara
Authors: Mais Margareta , Simbala Herni E.I , Koneri Roni
Published: July 2019

Tumbuhan obat merupakan tumbuhan yang menghasilkan satu atau lebih komponen aktif yang dipercaya berkhasiat obat dan berguna untuk pengobatan. Penelitian ini bertujuan mengidentifikasi spesies tumbuhan yang berkhasiat obat yang dimanfaatkan oleh etnis Sahu dan Loloda di Kabupaten Halmahera Barat, Provinsi Maluku Utara. Pengumpulan data dilakukan melalui wawancara pemanfaatan tumbuhan obat dengan Pengobat Tradisional (Batra) dan meminta Batra untuk menujukan secara langsung tumbuhan obat yang digunakan. Mencatat seluruh informasi yang didapat dan tumbuhan yang obat yang digunakan diidentifikasi. Hasil didapatkan bahwa spesies tumbuhan yang dimanfaatkan oleh suku Sahu dan Loloda di Kabupaten Halmahera Barat sebanyak 59 spesies, yang terdiri dari 42 famili. Malvaceae, Euphorbiaceae dan Zingiberaceae merupakan famili yang paling banyak jumlah spesiesnya digunakan sebagai tumbuhan obat. Bagian tumbuhan yang banyak digunakan sebagai obat adalah daun. Semak merupakan habitus tumbuhan yang paling banyak dimanfaatkan sebagai bahan pengobatan. Spesies tumbuhan obat yang digunakan umumnya tanaman yang dibudidayakan secara sederhana oleh masyarakat dan beberapa diantaranya diambil dari hutan kemudian ditanam di rumah dan juga tumbuhan obat yang tumbuh di pekarangan yang dikembangkan dengan teknik budidaya sederhana.Medicinal plants are plants that produce one or more active components that are believed to be nutritious and useful for the treatment. This study aims to identify the species of medicinal plants that are used by Sahu and Loloda ethnic groups in West Halmahera Regency, North Maluku Province. Data collection was done through interviews of the use of medicinal plants with Traditional Medicine (Batra) and asked Batra to directly address the herbs used. Record all information obtained and the medicinal plants used are identified. The result showed that plant species utilized by Sahu and Loloda in Halmahera Barat Regency were 59 species, consisting of 42 families. Malvaceae, Euphorbiaceae and Zingiberaceae are the families with the greatest number of species used as medicinal plants. Part of the plant is widely used as a medicine is a leaf. Bush is the most widely used plant habitus for treatment. Species of medicinal plants used are generally cultivated plants simply by the community and some of them are taken from the forest then grown in the home and also the medicinal plants grown in the yard developed by simple cultivation techniques.
Keselamatan Dan Keamanan Laboratorium IPA
Authors: Sangi Meiske S. , Tanauma Adey
Published: July 2019

Laboratorium adalah tempat untuk melakukan percobaan maupun pelatihan yang memerlukan dorongan budaya keselamatan dan keamanan, sehingga lingkungan itu menjadi tempat yang aman untuk mengajar, belajar, dan bekerja. Pengelolaan keselamatan dan keamanan laboratorium IPA merupakan tanggung jawab bersama baik pengelola maupun pengguna, oleh karena itu setiap orang yang terlibat harus memiliki kesadaran dan merasa terpanggil untuk mengatur, memelihara, dan mengusahakan keselamatan kerja. Staf guru dan murid SMA merupakan salah satu pengguna fasilitas laboratorium yang perlu memahami pengelolaan tentang keselamatan dan keamanan laboratorium.Saat mengelolah bahan laboratorium, tidak semua resiko bisa ditiadakan.Keselamatan dan keamanan laboratorim dapat ditingkatkan melalui penilaian resiko berdasarkan informasi dan pengelolaan resiko yang cermat.Bahan kimia ramah lingkungan merupakan falsafah perancangan produk dan proses yang mengurangi atau meniadakan penggunaan dan terciptanya bahan berbahayaThe laboratory is a place to conduct experiments as well as training that require the encouragement of safety and security culture, so that the environment becomes a safe place for teaching, learning, and working. The management of the safety and security in the science laboratory is a shared responsibility of both the manager and the user, therefore everyone involved must be aware and feel compelled to organize, maintain, and work for safety. Teacher staff and high school students are among the users of laboratory facilities who need to understand the management of laboratory safety and security. When managing laboratory materials, not all risks can be eliminated. The safety and security of the laboratory can be enhanced through risk-based risk information and risk assessment. Eco-friendly chemicals are the philosophy of designing products and processes that reduce or eliminate the use and creation of hazardous materials
Simulasi Ketinggian dan Waktu Tiba Gelombang Tsunami di Tahuna Sebagai Upaya Mitigasi Bencana
Authors: Mambu Brian , Tamuntuan Gerald H. , Pasau Guntur
Published: July 2019

Indonesia merupakan salah satu wilayah rawan bencana gempa bumi dan tsunami. Wilayah beresiko tinggi terjadi gempa bumi dan tsunami berada di laut Sulawesi dimana terdapat zona subduksi Sulawesi Utara. Salah satu cara mitigasi tsunami adalah dengan mensimulasikan ketinggian dan waktu tiba gelombang tsunami. Karena berada di wilayah laut Sulawesi maka  Tahuna beresiko mengalami bencana tsunami. Pemodelan gelombang tsunami menggunakan software TUNAMI-N2. Hasil yang didapatkan menunjukkan bahwa, ketinggian gelombang yang dapat menerjang  Tahuna adalah 0,23 m dengan waktu tiba sekitar menit ke-50Indonesia is one of the area that prone to disaster like earthquake and tsunami. The area with high risk for earthquake and tsunami to occur is located ini Sulawesi Sea where there have a North Sulawesi Subduction Zone. One way to mitigating tsunami is to simulate the height and arrival time of tsunami wave. Because of its position located in Sulawesi Sea, Tahuna City is very likely to struck by tsunami. The modelling of tsunami wave using TUNAMI-N2 software. The result yield the height of tsunami that could struck Tahuna City is 0,23 m with arrival time around 50 minutes
Keanekaragaman Makrozoobentos Di aliran Sungai Talawaan Minahasa Utara, Sulawesi Utara
Authors: Saudarah Adiawan , Rondonuwu Sendy Beatrix , Pontororing Hanny Hesky
Published: July 2019

Makrozoobentos memiliki peranan penting dalam ekosistem perairan. Ciri makrozoobentos dengan pergerakan yang relatif terbatas menyebabkan makrozoobentos dapat menjadi bioindikator kualitas air sungai. Sungai Talawaan merupakan salah satu habitat makrozoobentos yang terletak di Minahasa Utara, Sulawesi Utara. Penelitian ini bertujuan mengidentifikasi jenis-jenis makrozoobentos yang terdapat di Sungai Talawaan, Minahasa Utara, Sulawesi Utara dan menganalisis tingkat keanekaragaman makrozoobentos di Sungai Talawaan. Pengambilan sampel makrozoobentos menggunakan metode purposive sampling. Hasil penelitian menunjukkan makrozoobentos yang ditemukan di Sungai Talawaan sebanyak 297 individu yang terdiri  dari 3 filum, 3 kelas, 9 bangsa, 17 suku dan 21 marga. Indeks keanekaragaman makrozoobentos tertinggi pada Stasiun 1 (2,50), kemudian diikuti oleh Stasiun 2 (2,40) dan terendah pada Stasiun 3 (2,07)Macrozoobenthos has important roles in the aquatic ecosystem. The macrozoobenthos characteristic with relatively limited movement enables this organism to be the bioindicator of water quality in the river. Talawaan River is one of the macrozoobenthos habitat in the North Minahasa, North Sulawesi Province. This study aimed to identify the macrozoobenthos and to analyze the level diversity of macrozoobenthos in the Talawaan River, North Minahasa, North Sulawesi. The macrozoobenthos was sampled using purposive sampling method. The results showed that there were 3 phyla, 3 classes, 9 nations, 17 tribes and 21 clans of macrozoobenthos found in the Talawaan River. The highest diversity index of macrozoobenthos was observed in the station 1 (2.50), then followed by station 2 (2.40) and the lowest was in the station 3 (2.07)
Kesesuaian areal budidaya rumput laut berdasarkan kapasitas perairan Desa Arakan Kabupeten Minahasa Selatan
Authors: Burase Handy , Rompas Robert , Ngangi Edwin L.A.
Published: July 2019

The purpose of this research was to provide data on waters physical and chemical parameters, proper areal map, carrying capacity, and potential production of seaweed. Research method used was spacial approach through direct measurement in the field and through laboratory analysis. Ten observation stations were established purposively at Desa Arakan waters. Samples were collected four times at two weeks interval. It was found that water temperature was 31–31,25 ºC, flow rate 5,97–11,09 cm/det., dissolved oxygen 5,34–6,45 mg/l, pH 7,7–8,1, salinity 32,5-33 ppt, nitrate 5,02–5,25 mg/l, phosphate 0,01–0,14 mg/l, water depth 1,3–16,5 m, velocity 1,3–4,5 m, tide 0–283 cm with Mean Sea Level 75,6 cm. bottom substrate consisted of coral sand and muddy sand. Proper culture area based on SIG analysis was 134.64 ha in which very proper areal was 68.40 ha, proper 66.23%. while proper areal was 66.23 ha. Based on carrying capacity analysis, proper sustainable site was 126.57 ha. This area could support 1.054 long line measuring 20x60 cm each. Seaweed potential was 3363,7 ton per ha or 4.4 ton/ha/year or 4.4 ton/ha/planting season. Keywords: marine seaweed, water quality, SIG, sea water, SIG, carrying capacity, production
Kelayakan lokasi budidaya ikan di Danau Tondano ditinjau dari parameter fisika kimia air
Authors: Kamsuri Agus I , Pangemanan Penky N.L , Tumbol Reiny A
Published: July 2019

The purpose of this study was to determine the current condition of the water quality of Lake Tondano in terms of physical and chemical parameters in a fish farming locations on Lake Tondano waters. Determination of sampling points at each station is placed vertically at three predetermined points from the guard house toward the front of the net, the distance between one point to the next point was ± 10 m; whereas for the analysis of water quality parameters was done in Clinical Pathology of Fish Diseases Laboratory, Faculty of Fisheries and Marine Science, Sam Ratulangi Manado and Manado Industrial Research and Standards Laboratory. Determination points were done by purposive sampling which refers to the physiographic location wherever possible in order to represent or describe these waters. The research was carried out for 6 weeks and was done in 2 stages, morning and afternoon. For direct measurement (in situ) was performed once a week which included parameters DO, pH, temperature, and brightness, while the laboratory tests were conducted for 2 weeks which included parameters Nitrite, Nitrate, Iron, Chlorine, Manganese, Chloride, Sulfate, Aluminum, ammonia and Phosphate. The results show that the locations of the four parameters of chlorine (CL2) with range (0.1 to 0.28) and the parameters of Ammonia with the range (0.0125 to 0.15) over the limit indicated on water quality standards. The parameters of temperature, DO, pH, brightness, nitrate, nitrite, sulfate, manganese, chloride, aluminum, iron and phosphate were still in the water quality standard PP No.82 of 2001.
The effect of immersion in different doses of methyl testosteron hormone on survival and growth of nile tilapia larvae, Oreochromis niloticus
Authors: Matheos Refli , Watung Juliaan Ch. , Kalesaran Ockstan
Published: July 2019

This study aimed to determine the effect of methyl testosterone hormone for immersion of tilapia larvae for 8 hours on survival rate and growth of tilapia larvae (Oreochromis niloticus). Test animals used were as many as 240 larvae of tilapia, with methyl testosterone hormone treatment as much as A = 0 mg / l, B = 1,5 mg / l, C = 2,5 mg / l, and D = 3,5 mg /. Survival rate of tilapia larvae live on the highest dose of 1.5 mg / l which is 93.33% (A) followed by 83.3% (C), 80% (A), 75% (D). Highest absolute growth of larvae at the 2,34 cm (D) followed at 2,23 cm (C), 2,21 cm (B), 2,13 cm (A). The results showed that the differences in the dose of methyl testosterone did not give significantly different effect on survival rate of larvae and absolute growth. Keywords: immersion, methyl testosterone hormone, Oreochromis niloticus, survival
Dampak Kualitas Air Pada Budi Daya Ikan Dengan Jaring Tancap Di Desa Toulimembet Danau Tondano
Authors: Urbasa Pilipus A , Undap Suzanne L , Rompas Robert J
Published: July 2019

In this study, we determined the current condition of the water quality of Lake Tondano in terms of physical and chemical parameters in a fish farming locations on Lake Tondano of Toulimembet village waters. Determination of sampling points at each station is placed vertically at three predetermined points from the guard house toward the front of the net, the distance between one point to the next point was ± 12 m; whereas for the analysis of water quality parameters was done using an HORIBA water quality meters type U-536. Determination points were done by purposive sampling which refers to the physiographic location wherever possible in order to represent or describe these waters. The research was carried out for 3 weeks and was done in 3 stages, morning, afternoon and evening. For direct measurement (in situ) was performed once a week at the three points which included parameters pH, temperature, conductivity, DO, Oxidation reduction potential, turbidity, TDS, depth and GPS. Generally, the result of water quality analysis at the aquaculture still in the water quality standard PP No.82 of 2001. Keywords: Water Quality, Stick Net Cage, Lake Tondano, Aquaculture
Penambahan Madu Dalam Pengenceran Sperma Untuk Motilitas Spermatozoa, Fertilisasi dan Daya Tetas Telur Ikan Nila (Oreochromis niloticus)
Authors: Nainggolan Ramses , Monijung Revol D , Mingkid Winda
Published: July 2019

The research intends to determine the optimal concentration of honey addition in sperm dilution on sperm motility, fertilization and eggs hatchability of Nile Tolapia (Oreochromis niloticus). Experimental design used was a Complete Randomized Design (CRD) with three times repetition of four treatments. The concentration of honey addition used for treatment are A (0 ml of honey in 100 ml of physiological NaCl), B (0.60 ml of honey in 99.40 ml of physiological NaCl), C (0.65 ml of honey in 99.35 ml of physiological NaCl), D (0.70 ml of honey in 99.30 ml of physiological NaCl). Parent used consisted of five female parent and five male parent with 250 – 500 mg weight. Sperm dilution containers used was 12 plastic cups and the container fertilization and hatching eggs container used was 12 brass plates.  Spermatozoa motility observation performed immediately after dilution process. Fertilization observation was performed after 12 hours of fertilization process, and Egg Hatchability observation was performed after 60 hours of fertilization.  The observation results showed that the addition of honey in sperm dilution contributed significant effect on spermatozoa motility, fertilization and eggs hatchability of Nile Tolapia (Oreochromis niloticus). This observation showed that the addition of 0.70 ml of honey in a sperm dilution was the best treatment seen from the average percentage of spermatozoa motility (73,33 %), fertilization (80,00%) and eggs hatchability (77,33 %.) Keywords:       Honey, sperm dilution, spermatozoa motility, fertilization, eggs hatchability Nile Tolapia
Pengaruh Pemberian Pakan Komersial yang Berbeda pada Pertumbuhan Ikan Nila Oreochromis niloticus
Authors: Hamadi Martha F , Sampekalo Julius , Lantu Sartje
Published: July 2019

This research intended to study the growth of nile tilapia and commercial food conversion.  The research was conducted at Laboratory of Nutrition and Fish Feed Technology, Faculty of Fisheries Sam Ratulangi University Manado.  Fish feed used were Comfeed (Treatment A), Bintang (Treatment B) dan Lokal Food  (Treatment C).  Feeding dosage was 5% per body weight per day and feeding frequency was three times a day.  The research used complete randomized design with three treatments each with three replications. Research results showed that treatment A had absolute growth 257,67 g, , relative growth 160,37% and food conversion ratio 1,81 while treatment B had absolute growth 240,67 g, relative growth 152,05% and FCR 2.36,   and treatment C 235,00 g absolute growth, relative growth 147,04% and FCR 2.41.  Statistic analysis found  abosolute growth of fish in treatment A different significantly compared to treatment B and C.   Treatment A and B had similar effect but different significantly compared to treatment C.  It could be concluded that the use of comfeed was better to increase fish growth and FCR as compared to treatment B and C.   Keywords: growth, nile tilapia, food conversion ratio, commercial feed
Evaluasi Usaha Pembudidayaan Ikan di Desa Matungkas Kabupaten Minahasa Utara
Authors: Koten Elias , Mondoringin Lukas L.J.J , Salindeho Indra R.N
Published: July 2019

The purppuse of research was to study the feasibility of fish culture technically and economically.  Primary data was gathered by interview to fish farmer and secondary data was obtained from related references.  Data analyzed were break even point and foof conversion ratio.  Water source of pond was spring water and the pond depth was 0.50 – 1.75 m.  Juveniles were obtained fron Tatelu Freshwater Aquaculture Board  and other palces.  Fish was fedr pellet for 3-4 months. Pond conctruction did not match the criteria . Fish farmer did not used capital from bank and farmers did not use book account in running the business. Food conversion ratio was 2.5 – 3.5. The price of pellet was Rp. 8.500/kg ang fish price was Rp. 25.000/kg.  Fish farmer dit not receive enough profit in running fish culture   Keywords:  feasibility study, pond construction, fish culture, Matungkas Village
Pemanfaatan ragi sebagai penyeimbang bahan baku berserat dalam formulasi pakan ikan nila (Oreochromis niloticus)
Authors: Telleng Dewi , Lumenta Cyska , Monijung2 Revol D
Published: July 2019

This study was conducted to determine the effect of yeast as a counterweight of fibrous raw material in Tilapia  feed formulations on growth and feed efficiency value. The research results found that the biggest absolute growth of Tilapia fry occurred in treatment A: 5% yeast (9,2 g),  followed by  C: 15% yeast (8,6 g), D: 20% yeast (7,14 g), and B: 10% yeast (5,03 g). The highest feed efficiency value occurred in treatment A (23,75%), followed by C (22,45%), D (18,69%) and B (13,96%). The parameter of water quality measured during experiment included temperature 26-28o C and pH  7. The range value of water quality in each treatment was considered to be proper for the living condition of fish fry. Keywords: yeast, Oreochromis niloticus, growth, feed efficiency
Pemanfaatan tepung kulit pisang raja (Musa paradisiaca) dalam formulasi pakan ikan nila (Oreochromis niloticus)
Authors: Nanariain Rian M. , Lumenta Cyska , Pangkey Henneke
Published: July 2019

The objective of this research was to evaluate the effect of supplementation of banana skin (Musa paradisiaca) in feed formulation on absolute growth, relative growth, daily growth and feed efficiency of nile tilapia.  The research was conducted at the Laboratory of Aquaculture Technology, Faculty of Fisheries and Marine Science, Sam Ratulangi University. The research used Complete Randomized Design with five treatments inluded A: without supplementation banana skin powder, B: 40%, C: 30%, D: 20% and E: 10% of banana skin powder. Each treatment  had three replications.  The result showed the best response was observed in treatment D  with absolute growth o43.11 g, relative growth 88.9%, daily growth 10.17%,  and feed efficiency 3.20%. Keywords:  feed formulation, banana skin, nile tilapia, absolute growth, relative growth,   daily growth,  feed efficiency
Pengaruh kualitas fisika kimia perairan terhadap usaha budidaya ikan di Danau Bulilin Kabupaten Minahasa Tenggara
Authors: Kabalmay Agmilda A. , Pangemanan Novie P.L. , Undap Suzanne L.
Published: July 2019

The research was conducted to determine the condition of physicochemical quality of waters and its effect on the sustainability of aquaculture in Bulilin Lake. The study was conducted at Lake Bulilin, Southeast Minahasa Regency in September 2016 (dry season) until January 2017 (rainy season). Measurement of physicochemical quality of waters was conducted in situ at 9 stations: station 1, 2, 3 (not aquaculture area); station 4, 5, 6 (aquaculture area) and station 7, 8, 9 (floating restaurant area).  Laboratory analysis of water samples from three stations, namely station A (not aquaculture area), station B (aquaculture area) and C (floating restaurant area), was done at  the Board of Research and Industrial Standardization Manado. Primary data were collected by interview to aquaculturist and field observation on aquaculture effort in Bulilin Lake.   The results of the study showed that water temperature range from 27 - 32oC, total dissolved solid 0.239 – 0.305 g/l, brightness 40 – 72.5 cm, pH 6.44 - 9, dissolved oxygen 3 – 5.18 mg/l, Nitrate 1.93 - 5.67 mg/l, nitrite 0 mg/l, ammonia 0 - 0.22 mg/l and phosphate 0 - 0.60 mg/l.  These result indicated that water quality condition is still in accordance with the quality standard for fish culture except ammonia.  High ammonia level caused overgrown of Eichhornia crassipes (eceng gondok). The sustainability of fish culture at present is relative fluent and beneficial even though the waters have been overgrown with weed water hyacinth.  However for the sustainability of the aquaculture effort in Bulilin Lake it is necessary to manage the waste to Bulilin Lake.Keywords : Lake Bulilin, physicochemical quality of waters , fish culture
Efisiensi pakan bertepung kijing Taiwan (Anodonta woodiana) bagi pertumbuhan ikan mas (Cyprinus caprio L.)
Authors: Mangkapa Arliani , Lumenta Cyska , Mokolensang Jeffrie F.
Published: July 2019

The objectives of research were to determine the effect of different composition of Taiwanese mussel powder-supplemented feed on absolute growth, daily growth, relative growth, feed efficiency and food conversion ratio for carp fingerling; and to determine the best composition of Taiwanese mussel powder-supplemented feed that gave the best response on carp fingerling.  The research was conducted at Laboratory of Aquaculture Technology by means of 15 aquaria with a density of 10 fishes (3-5 cm in length) per aquarium. The research implemented Complete Randomized Design with five treatments, each with three replications.  The treatments included A= 0, B= 10, C= 20, D= 30, and E= 40% Taiwanese mussel carcass powder.  The fish were fed three times a day at 6% of body weight. Research result showed the best absolute,  daily, and relative growth,  feed efficiency and food conversion ratio was observed at treatment E.  It was concluded that feed supplemented with 40% of Taiwanese mussel carcass powder demonstrated the best response on  and growth, feed efficiency and food conversion ratio.Keywords:  Taiwanese mussel powder, growth, feed efficiency, feed conversion ratio
Telaah morfometrik Pinctada margaritifera untuk pengembangan usaha budidaya
Authors: Sumtaki Karel , Kalesaran Ockstan J. J. , Lumenta Cyska
Published: July 2019

This study aimed to analyze the size of shell length, shell width and total weight of Pinctada margaritifera shells, and water quality parameters for the aquaculture development. Morphometric measurements include: shell length (PC), and shell width (LC), shell weight (BT). The results showed that PC size 8 - 11.99 cm, LC 8 - 9.99 cm and BT 80 - 99.99 gram dominate the Arakan waters  while PC size 6 - 9.99 cm, LC 6 - 7.99 cm and BT 60 - 79.99 gram dominate the Bahoi  waters. The results of water quality measurements in both locations are Bahoi waters, namely: 29-32oC, DO 7-8,5 mg/l, pH 7,8-7,9, salinity, 28-32 ppt, 4,5- 7 meters, 11 cm/sec. While in Arakan waters, the temperature was 30-30,8oC, DO 6,3-6,7 mg/l, pH 7,6-7,7 salinity 30 ppt, brightness 4-5 meter, current velocity 4,5 cm / second. Both locations were feasible for the development of pearl aquacultureKeywords: Morphometric, Pinctada margaritifera, Aquaculture
Tingkat keberhasilan hidup teripang gamat lumpur, Stichopus hermanni, hasil dari transverse fission
Authors: Tatalede Putri A. , Salindeho Indra R.N.
Published: July 2019

The aim of the experiment was to find out the survival rate of the sea cucumber (Stichopus hermanni) seeds generated from transverse-fission method, and cultured in the waters of Talengen gulf, Sangihe Islands Region.  Twenty five specimens of sea cucumber were collected around the waters of Talengen gulf and Pananuareng bay, the Region of Sangihe Islands.  The specimens were transported by boat to the field-research area of Nusa Utara Polytechnic, as the site of the experiment.  The specimens were kept individually in 25 plastic mesh cages, where each cage measured 40cmx40cmx40cm.    The individual body length of the specimens was measured  and then  was transversely  cut at the middle of the body antero-posteriorly.  The procedure was conducted underwater to prevent  expelling of the visceral organs.  25 individuals were applied transverse-fission,  hence 50 new individuals were generated, which were composed of 25 Anterior individuals (A) and 25 Posterior-individuals (P).   After transverse fission,  the Anterior- individuals (A) and Posterior-individuals (P), generated from the same individual were put back to their previous cage.  The new individuals were cautiously controlled, and at the interval of 6 hours observation on the sealing process of the open wound and the regenerating process were carried out. The result showed that the survival rate of the sea cucumbers generated from transverse-fission method, was as high as 70.83%.  The Posterior-individuals (P) had higher survival rate (75.66%) than Anterior-individuals (66%).   The result also showed that A and P individuals generated from larger individuals had lower survival rate than those from smaller individuals.   Small individuals sizing 6-14cm had highest survival rate, which was 100%, while larger individuals sizing 14-22cm and 22-30cm had lower survival rate which were 85.5%  and  27% respectively.     The sealing of the open wounded took averagely 4 days, while the process of the regeneration took around 4 weeks. Keywords: sea-cucumber, fission, survival-rate
Konservasi penyu di Pulau Talise, Gangga dan Bangka Kabupaten Minahasa Utara
Authors: Arunde Preti , Boneka Farnis B. , Wagey Billy Th. , Mamangkey Gustaf , Manembu Indri , Kambey Alex
Published: July 2019

Generally, this study was intended to examine the problems or implementation of turtle conservation in Talise, Gangga and Bangka Islands and specifically with a number of objectives to: know the introduction of sea turtle, to know sea turtle fishing and turtle exploitation, to know the knowledge of the people about turtle as a protected animal. Survey results on Talise Island, Gangga and Bangka showed that people who had seen turtles directly: Talise Island 94%, Gangga 58%, and Bangka 92%. Local residents of Talise, Gangga and Bangka Islands know well the turtles even see directly in their habitat and spawning time. In Talise, Gangga and Bangka Islands,  turtles are still commonly caught, traded and consumed by local people.  People's awareness about turtles as protected animals is lacking.  Keywords: Turtle, Talise Island, Gangga and Bangka