Department of Biology: Recent submissions
Now showing items 221-240 of 1208
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Kepadatan, Pola Distribusi dan Pola Pertumbuhan Kerang Darah (Anadara granosa) di Perairan Pantai Sialang Buah, Kabupaten Serdang Bedagai, Sumatera Utara
(Universitas Sumatera Utara, 2023)Bivalve, Arcidae granosa, has a high economic value. It cause, the activity of clam harvest among community in Sialang Buah Beach increase in order to take the blood mussel as many as they can. It is feared, the population ... -
Kepadatan, Distribusi dan Hubungan Panjang Berat Remis (Corbicula Javanica) di Perairan Pantai Putra Deli Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2023)Corbicula javanica is a group of small shellfish that live at the bottom of the waters. have shells, mollusca phylum of the corbiculidae family and bivalves class that live in coastal waters. Mussels are an important ... -
Kepadatan, Pola Distribusi dan Pola Pertumbuhan Kerang Hijau (Perna Viridis) di Perairan Pantai Putra Deli Kabupaten Deli Serdang, Sumatera Utara
(Universitas Sumatera Utara, 2023)Green mussel (Perna viridis) is a mollusk that lives in coastal waters, especially in the intertidal area. Many green mussels are found in the coastal at Putra Deli, Deli Serdang Regency. Many fishermen and the community ... -
Keanekaragaman Makrofauna Tanah Pada Areal Tanaman Kacang- Kacangan di Areal UPT Benih Induk Tanjung Selamat Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2023)Soil macrofauna diversity is one of the biological natural resources that is very beneficial to the environment. Its existence is influenced by biotic, as well as biotic, factors around it. Abiotic factors that pervade ... -
Makrofauna yang Aktif di Permukaan Tanah Sebagai Spesies Bioindikator Pada Areal Upt Benih Induk Palawija dan Hortikultura Tanjung Selamat Kabupaten Deli Serdang
(Universitas Sumatera Utara, 2023)Soil macrofauna is part of soil biodiversity which plays an important role in improving soil physical, chemical, and biological properties. Soil macrofauna has an important role in the decomposition of soil organic matter ... -
Deteksi Begomovirus pada Tomat (Solanum lycopersicum L.) di Kabupaten Langkat dengan Teknik PCR (Polymerase Chain Reaction)
(Universitas Sumatera Utara, 2023)Disease in tomato (Solanum lycopersicum L.) caused by Begomovirus and its the morphological symptoms sometimes difficult to distinguish from symptoms caused by other viruses. Therefore PCR method is the more accurate way ... -
Kepadatan dan Pola Pertumbuhan Udang Putih (Penaeus merguiensis) di Perairan Estuaria Kampung Nipah Perbaungan Sumatera Utara
(Universitas Sumatera Utara, 2017) The purpose of the study was to determine the density and pattern of growth of white shrimp (Penaeus merguiensis) in estuarine waters around the village Nipah. The data collection was conducted by sampling using nets ... -
Pengaruh Ekstrak Metanol Biji Pare (Momordica charantia L.) dan Depo Medroksiprogesteron Asetat (DMPA) terhadap Profil Lipid dan Histologi Arteri Koronaria Tikus Putih Jantan
(Universitas Sumatera Utara, 2015) The combination of the seed extract of bitter melon (Momordica charantia L.) and DMPA is one alternative to the expected safe and reversible male contraceptive agent. This study aims to determine the phytochemical content ... -
Biodiversitas Tumbuhan Epifit (Orchidaceace dan Pteridophyta) di Kawasan Hutan Ekowisata Bukit Lawang Kabupaten Langkat
(Universitas Sumatera Utara, 2010) The research about Biodiversity of ephyfit plant (Orchidaceae and Pterydophyta) was conducted in Bukit Lawang forest, Langkat Regency from Februari to April 2010. Research area was determined by using Purposive Sampling ... -
Keanekaragaman Plankton serta Hubungannya dengan Kualitas Air di Perairan Danau Toba Balige Kabupaten Toba Samosir
(Universitas Sumatera Utara, 2009)The research about "The Diversity of Plankton and its Correlation to the Quality Water of Lake Toba, Balige, has been done in October 2008 to January 2009. Samples were taken from four observation Stations and in every ... -
Gambaran Endoparasit Sapi (Bos Sp.) yang Dipelihara Secara Ekstensif di Kebun Kelapa Sawit, Kecamatan Tebing Tinggi, Sumatera Utara
(Universitas Sumatera Utara, 2023)Research on the description of The cattle endoparasites extensively reared at oil palm plantations, Tebing Tinggi District North Sumatra had been done. This research was conducted from January to April 2023. This study ... -
Analisis Kariotipe Kromosom Ikan Guppy (Poecilia reticulata Peters, 1859) Dengan Pewarnaan Giemsa
(Universitas Sumatera Utara, 2023)Guppy fish (Poecilia reticulata) is one type of freshwater ornamental fish belong to the family Poeciliidae. Guppies are ornamental fish with in great demand of the interesting color variations such as red, blue, yellow ... -
Analisis Kandungan Logam Berat Pb dan Zn pada Daging Ikan Kakap Putih (Lates Calcarifer) di Perairan Sungai Belawan
(Universitas Sumatera Utara, 2023)The research of Pb and Zn heavy metal content of White Snapper meat (Lates calcarifer) was conducted in Belawan River, Deli Serdang Regency on January 2023. The purpose of this study was to analyse the levels of heavy ... -
Analisis Kariotipe Kromosom Ikan Balon Sailfin Molly (Poecilia latipinna Lesueur, 1821)
(Universitas Sumatera Utara, 2023)Research on sailfin molly fish has never been done, so information on the karyotype, pattern, shape, and size of the chromosomes of sailfin molly has not been found. This study was conducted to determine the number of ... -
Kelimpahan, Pola Distribusi dan Pola Pertumbuhan Kepah Tahu (Meretrix Meretrix) di Perairan Pantai Sialang Buah, Kabupaten Serdang Bedagai, Sumatera Utara
(Universitas Sumatera Utara, 2023)Tofu clam (M. meretrix) is a soft-bodied animal (mollusca) that belongs to the bivalves or pelecypoda class. Tofu clam contains protein, fat, carbohydrates, EPA (Eicosapentaenoic Acid) and DHA (Docosahexaenoic Acid). ... -
Variasi Konsentrasi Ekstrak Taoge dan Media Tanam terhadap Pertumbuhan Microgreen Alfalfa (Medicago Sativa L.)
(Universitas Sumatera Utara, 2023)Microgreens are a young vegetables with small size harvested around 7 to 14 days after sowing. Microgreen require suitable growing media as well as nutrients to grow properly. The research on the variation of concentrations ... -
Analisis Kariotipe Kromosom Ikan Hias Ekor Pedang (Xiphophorus hellerii Heckel, 1848)
(Universitas Sumatera Utara, 2023)The genetic aspect of the swordtail fish (Xiphophorus hellerii), a member of the Poeciliidae family, rarely to known. The fish has a very high market value and can be produced as an attractive fish farming product. ... -
Pertumbuhan Tanaman Kangkung Darat (Ipomea Reptans Poir. ) dengan Nutrisi Pupuk Organik Cair Kulit Nanas (Ananas Comosus) pada Sistem Hidroponik Wick
(Universitas Sumatera Utara, 2023)Kangkong (Ipomea reptans Poir.) is a type of vegetable that is favored by all groups of people in Indonesia. This study aims to analyze the growth response of kangkong by giving pineapple peel POC nutrition with different ... -
Analisis Kariotipe Kromosom Ikan Sumatra (Puntius tetrazona Bleeker, 1855) dengan menggunakan Software IdeoKar 1.3
(Universitas Sumatera Utara, 2023)The Sumatra fish, Puntius tetrazona, is an ornamental fish native to Indonesia with an attractive appearance. This research aimed to analyze the karyotype of Sumatra fish chromosomes, including the number, the size, ... -
Identifikasi Ektoparasit Sapi (Bos Sp.) di Kebun Kelapa Sawit Afdeling Ii, Desa Gunung Kataran, Kecamatan Tebing Tinggi, Kabupaten Serdang Bedagai, Sumatera Utara
(Universitas Sumatera Utara, 2023)The high or low attack of ectoparasites in cattle is one of the supporting factors of the successfull of the raising cattle. The research of the identification of cattle ectoparasites (Bos sp.) at Afdeling II palm oil ...