Department of Biology: Recent submissions
Now showing items 941-960 of 1257
-
Studi Komparasi Komposisi Ikan Antara Kawasan Transplantasi Karang dan Kawasan Terumbu Karang Alami di Pulau Rubiah, Aceh
(Universitas Sumatera Utara, 2015)Coral fish is the greatest part of and conspicuous organism found in coral reef. Coral transplantation is believed to be able to return its function as the ecosystem which is needed by fish. So far, there has been no report ... -
Analisis Kadmium (Cd ) dan Pola Pita Isozim pada Organ Ikan Mas (Cyprinus Carpio) di Danau Lau Kawar, Kabupaten Karo Sumatera Utara
(Universitas Sumatera Utara, 2021)Cadmium (Cd) is a heavy metal that has a high toxic effect, even at low concentrations. Lake Lau Kawar is one of the lakes that can be found in the Leuser Ecosystem (KEL). One of the bioindicators used to determine the ... -
Pengendalian Saprolegnia sp. pada Telur Gurami (Osphronemus gouramy) Menggunakan Isolat Bakteri Kitinolitik
(Universitas Sumatera Utara, 2011)A study on potential antagonist activity of 24 chitinolytic bacteria isolated from Osphronemus gouramy pond culture to inhibit the Saprolegnia sp. causal agent of saprolegniasis in gouramy egg was carried out. The ... -
Pengendalian Serangan Busuk Pangkal Batang (Ganoderma boninense Pat.) Pada Bibit Tanaman Kelapa Sawit (Elaeis guineensis Jacq.) Menggunakan Isolat Bakteri Kitinolitik
(Universitas Sumatera Utara, 2011)A study to control of Basal Stem Rot (Ganoderma boninense Pat.) on the palm oil seedling (Elaeis guineensis Jacq.) using local chitinolitic bacteria has been done in Microbiology Laboratory, Biology Department, Mathematic ... -
Pengendalian Serangan Colletotrichum sp. pada Tanaman Kakao (Theobroma cacao L.) Menggunakan Isolat Bakteri
(Universitas Sumatera Utara, 2011)Colletotrichum sp., is one of causal agents of antracnose disease on cacao leaf. This fungus is one organisms that caused leaf blight. Biological control of Colletotrichum sp, utilizing bacterial and fungal isolates ... -
Keanekaragaman Jenis Pohon dan Produktivitas Buah Pakan Orangutan di Cagar Alam Jantho
(Universitas Sumatera Utara, 2014)The study entitled "Biodiversity and Productivity Fruit Trees Feed Orangutan Nature Reserve Jantho" has been done of the month December 2013 - in May 2014. This study aims to determine species diversity and productivity ... -
Kepadatan Populasi dan Reproduksi Ikan Belanak (Mugil Dussumieri) di Perairan Belawan, Sumatera Utara
(Universitas Sumatera Utara, 2015)This research aim to know population overflows, knowing reproduction level, and knowing relation among nature of physics and chemistry in Territorial Water of Belawan to population overflows and level reproduction belanak ... -
Beberapa Aspek Ekologi Jamur Endofit pada Mentigi (Vaccinium Varingiaefolium) di Kawah Gunung Sinabung Sumatera Utara
(Universitas Sumatera Utara, 2012)Penelitian mengenai jamur endofit telah dilakukan lebih dari 20 tahun yang lalu (Clay dan Schardl, 2002). Hampir setiap bagian tanaman telah berhasil ditemukan jamur endofit, baik pada daun, batang dan akar (Bayman et al. ... -
Komunitas Makrozoobentos sebagai Bioindikator Kualitas Air di Sungai Batang Serangan-Tangkahan Kabupaten Langkat, Sumatera Utara
(Universitas Sumatera Utara, 2010)The research about “The Community of Makrozoobenthic as Bioindicator Water Quality in Batang Serangan-Tangkahan River, Langkat, North Sumatera”, has been done in April to June 2010. Sampling was done three months period, ... -
Analisis Morfologi dan Genetik Ikan Batak (Tor Soro) di Sumatera Utara
(Universitas Sumatera Utara, 2020)A study about an Analysis of Morphology and Genetic Variaton of Ikan Batak (Tor soro) in North Sumatera has been done in Laboratory of Biology and Molecular of Institut Pertanian Bogor. Sample of Ikan Batak used in this ... -
Pengaruh Kitosan terhadap Komponen Darah , Kadar Hemoglobin, Sgpt dan Sgot pada Tikus (Rattus Norvegicus L) yang dipapar Plumbum Asetat
(Universitas Sumatera Utara, 2013)Environmental plumbum pollution has been caused by mining, industries which use lead and vehicle exhaust. Plumbum able to changes in the number of cellular component of blood (erythrocytes, leucocytes and platelets), ... -
Hubungan Antara Kualitas Air Dengan Kebiasaan Makanan Ikan Batak (Neolissochilus Sumatranus) di Sungai Asahan Sumatera Utara
(Universitas Sumatera Utara, 2013)The study of the water quality relationship and food habits of batak fish (Neolissochilus sumatranus) in Asahan river, North Sumatra was conducted. Aims of this research are to undesrtand the food habits of batak fish , ... -
Kemampuan Isolat Bakteri Kitinolitik dalam Mengendalikan Penyakit Jamur Akar Putih (Rigidoporus Microporus) pada Bibit Tanaman Karet
(Universitas Sumatera Utara, 2013)Chitinolytic bacteria have been known for their ability to control various fungal diseases of plants. In this study potential of chitinolytic bacterial isolates to control white root disease of rubber plant caused by ... -
Aktivitas Kitinolitik Bakteri Diazotrof Isolat Rhizosfer Kelapa Sawit Terhadap Ganoderma boninense, Pat
(Universitas Sumatera Utara, 2021)Diazotrophs are microorganisms that are able to fix nitrogen from atmosphere and sometimes used as biological control agents of fungal pathogens such as Ganoderma boninense. As biological control agent, dizotroph bacteria ... -
Efek Penambahan 2,4-Diclorophenoxyacetic Acid (2,4-D) terhadap Perubahan Genetik Organogenesis dari Kultur Suspensi Kelapa Sawit Berdasarkan Marka Simple Sequence Repeats (SSR)
(Universitas Sumatera Utara, 2016)The effect of adding 2,4 – Diclorophenoxyacetic Acid (2,4-D) On The genetic changes organogenesis of oil palm based on Simple Sequence Repeats (SSR) markers has been done at Genetic Laboratory and Plant Tissue Culture of ... -
Pengendalian Biofilm Aeromonas Hydrophila pada Permukaan Sisik Ikan dan Plastik Pvc dengan Senyawa Antimikroba Bakteri Asam Laktat Perairan Tawar
(Universitas Sumatera Utara, 2013)Outbreaks of bacterial diseases could affect on degradation of freshwater fish and cause of death of many species of freshwater fish in aquaculture systems. A. hydrophila found in freshwater in the form of biofilms and ... -
Kepadatan, Distribusi dan Pola Pertumbuhan Ikan Bulan-Bulan (Megalops Cyprinoides Broussonet, 1782) di Perairan Sungai Belawan
(Universitas Sumatera Utara, 2014)Research title " Density, Distribution and Growth Patterns Indo Pacific Tarpon (Megalops cyprinoides Broussonet, 1782) In Belawan River Water" was conducted in January-March 2014 The fish samples were taken every 3 months ... -
Studi Ekologi Kerang Lokan Geloina Erosa (Solander 1786) di Ekosistem Mangrove Belawan
(Universitas Sumatera Utara, 2014)Ecological Studies Scallop seashell Geloina erosa (Solander 1786) in Mangrove Ecosystem Belawan, has been investigated in December 2013 - February 2014. G. erosa Samples taken from three observation stations and each station ... -
Studi Ekologi Kijing (Glauconome Virens Linnaeus, 1767) di Ekosistem Mangrove Belawan
(Universitas Sumatera Utara, 2014)Kijing, Glauconome virens of the family Glauconomidae are found in mangrove area. The clams burrow themselves to the dept 13-30 cm in the muddy bottom and can survive on the anoxic condition. Kijing is a kind of export ... -
Keanekaragaman Fungi Mikoriza Arbuskula pada Areal Tanaman Karet (Studi Kasus di Ptpn III Kebun Batang Toru Kabupaten Tapanuli Selatan)
(Universitas Sumatera Utara, 2014)RIZKY AMELIA DONA SIREGAR. Vesicular Arbuscular Mycorrhizal Diversity of Rubber Plantation Area (Case Study in PTPN III Batang Toru Estate, South Tapanuli). Supervised by DELVIAN and DWI SURYANTO. This study aims to ...