IJOEP : International Journal of Ecophysiology
International Journal of Ecophysiology (IJOEP) is a peer-reviewed biannual journal (February and July) published by TALENTA Publisher and organized by Faculty of Mathematics and Natural Sciences, Universitas Sumatera Utara (USU) as an open-access journal. It welcomes full research articles in the field of Biological Sciences from the following subject area: Anatomy, Comparative anatomy, Histology, Astrobiology, Biochemistry, Biological engineering, Biogeography, Bioinformatics, Biolinguistics, Biomechanics, Biomedical research, Biophysics, Biotechnology, Synthetic biology, Botany, Phycology, Plant physiology, Cell biology, Chronobiology, Cognitive biology, Conservation biology, Cryobiology, Developmental biology, Embryology, Gerontology, Ecology, Evolutionary biology, Genetics, Genomics, Epigenetics, Immunology, Marine biology, Microbiology, Bacteriology, Mycology, Parasitology, Virology, Molecular biology, Nanobiology, Neuroscience, Paleontology, Pathobiology, Pharmacology, Physiology, Phytopathology, Psychobiology, Quantum biology, Systems biology, Structural biology, Theoretical biology, Zoology, Ethology, Entomology, Herpetology, Ichthyology, Mammalogy, and Ornithology. Each publication will contain 10 (ten) manuscripts.
Articles
114 Documents
<![CDATA[Community Structure and Distribution of Coleoptera Soil IPM and Non IPM Upland Vegetable Agricultural Areas in Two Villages in Kabanjahe ]]>
<![CDATA[Arlen Hanel John]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10016
<![CDATA[The concept of Integrated Pest Management (IPM) is an effort developed by the government in order to reduce the use of pesticides in the agricultural sector. In the development of agriculture in Kabanjahe, both Non-IPM (Non Integrated Pest Management) and IPM (Integrated Pest Management), research is needed to determine the community structure and distribution of soil fauna, including soil coleoptera, and to determine the effect of soil physical and chemical factors on soil coleoptera community structure in the highland vegetable farming area of Kabanjahe district. Karo Regency. Determination of sampling points in this study was carried out using the "purposive random sampling" method, in two agricultural areas, in two villages, namely Sumber Mufakat and Gung Negri, Non-IPM agricultural land areas and IPM agricultural areas. While the active coleoptera sampling of the soil surface was carried out using the Pit Fall Trap method, and the Quadratic and Hand Sorting methods for Coleoptera that live in the soil. The results showed that the number of types and population density of coleopteran soil was more / higher in the area. IPM agriculture. The highest density and relative density values in the research area were the genus Callosoma for the IPM and Non-IPM lands of Sumber Mufakat Village and the IPM of Gung Negri Village, while for the Gung Negri Non-IPM land the genus Scapidium and the genus Tenebrio.]]>
<![CDATA[Individual Behavior Of Female Sumatran Orangutan (Pongo abelii L.) With Management System In Siantar Zoo ]]>
<![CDATA[Arlen Hanel John]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10017
<![CDATA[The Sumatran orangutan (Pongo abelii) is an endangered species due to the destruction of its forest habitat and deforestation. Various conservation efforts have been made to prevent the orangutan extinction,such as ex-situ conservation in Siantar Zoo.This study aims to determine the behavior of individual female orangutans at Siantar Zoo with a management system. The observatuons was conducted for 14 days in August with the focal animal sampling method and data recorded using the Instantaneous method.The results showed the overall frequency of individual female orangutan behavior were resting (40%), eating (35%), moving (14%), special (6%), self care (4%) and pooping (1%). The behavior of individual female orangutans is influenced by the number of visitors, namely the resting behavior of the crowded visitor category 39,15%, medium category 41.81% and quiet 39.68%. The eating behavior of the crowded visitor category is 37.80%, the medium category is 33.56% and the quiet category is 34.68%. The moving behavior in the quiet, medium and crowded categories is 14.18%; 12.85%; 11.67%. The specific behavior for the quiet, medium and crowded categories was 6.19%; 5.55%; 5.59%. Self-care behavior in the crowded visitor category is 4.34%, the medium category is 4.60% and the quiet category is 4.01%. The behavior of pooping in the crowded category is 1.45%, in the medium category is 1.62% and in the quiet category is 1.27%.The female orangutan management system at Siantar Zoo is analyzed as having a fairly good and regular system. The cage management has met the minimum requirements and the female orangutan has a good body weight and has never been infected with a serious disease.]]>
<![CDATA[Efficiency of Feed Consumption and Rate of Silkworm Respiration (Bombyx mori L.) Mulberry Leaves (Morus sp.) Containing Vitamin B1 (Thiamine) ]]>
<![CDATA[Masitta Tanjung]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10020
<![CDATA[The effect of Mulberry (Morus sp.) leave that contain vitamin B1(Thiamine) on the efficiency of feed consumption and respiration rate of silkworm (Bombyx mori L.) had been carried out. This study was complete randomized designed (CRD) by 5 treatments and trireplicated. Each replication consisted of 10 silkworms. The treatmeants were vitamin B1 with concentration of 0; 0,1; 0,2; 0,3 and 0,4mg/100 ml. The results showed that the relative consumption rate increased to the concentration of 0,4mg/100 ml and respiration rate was 0,4mg/100ml (p<0,05). Vitamin B1 had no effect on the relative growth rate, efficiency of convertion of digested food, efficiency of convertion of ingested food and approximate digestibility.]]>
<![CDATA[Effect Of The Quality Of Mulberry Leaves Morus alba Against The Silkworm Nutrition Index Bombyx mori L. (Lepidoptera:Bombicidae) ]]>
<![CDATA[Masitta Tanjung]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10021
<![CDATA[Th leaf quality effect of mulberry (Morus alba) on nutrition index of silkworm (Bombyx mori L.) has been studied. This research was design according to Completely Randomized Design (CRD) with 2 treatments which are an unfertilized mulberry plant, and the fertilized mulberry plants with urea, triple super phosphate (TSP), nitrogen, phosphor, and potassium (NPP). Twenty times replications was applied for each treatment. The results showed that the leaf of fertilized mulberry plant is evidently increased the growth and the consumption rate on the conversion efficiency of instar III, the feed digestion of instar V, the efficiency of food conversion of instar IV and V, and the estimate of feed digested of instar IV with the number for each was 36% and 26%, 30%, 34% and 67%, 24%, respectively.Bombyx mori L.]]>
<![CDATA[Diversity of Insect Pests in Plants of Coffee (Coffea arabica L.) in Sigumpar, Humbang Hasundutan, North Sumatera ]]>
<![CDATA[Nursal bio]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10023
<![CDATA[Both methods were carried out in 5 locations based on the age of coffee, 3, 5, 10, 15, and 20 years. The area of the Searching and Direct Observation and Hand Picking method is 20x20 meters which was carried out diagonally. Data collected included the number of species and individuals, density (K), relative density (KR),attendance frequency (FK), diversity index (H '), equitability index (E) and its similarity index (IS). The results of the observation showed that 4 pest orders, 8 families, 10 species and 225 individuals were obtained. During the day 9 species of insects were found with 4 orders, 7 families, and 198 individuals and at night there were 4 types of insects with 2 orders, 3 families and 31individuals. Hypothenemus hampeii is the species with the highest K, KR and FK values of all locations with each value of 0.045 ind / m2, 41.86% and 100%. The highest Diversity Index (H ') value is found at location 5 (1,841) and the lowest value at location 1 (1,178). The highest Equitability value (E) is found in location 1 (0.849) and the lowest value at location 5 (0.799). The highest Similarity Index (IS) is found in locations 4 and 5 with a value of 94.73% and the lowest at locations 1 and 5 with a value of 57.14%.]]>
<![CDATA[Diversity of Fish in Idanoi River and It’s Relationship to Physical Factors of Water Chemistry ]]>
<![CDATA[Ternala Alexander Barus]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10024
<![CDATA[A river is an area through which a body of water moves from a high place to a low place either through the surface or underground which has an average width equal to or more than 5 meters. One of the rivers in Indonesia is the Idanoi river, located in the North Sumatra region, Ononamolo 1 Lot village, Gunungsitoli Selatan sub-district, Nias. This river is inseparable from human activities which affects the condition of river waters as a habitat for aquatic biota. The purpose of this study was to analyze the diversity of fish species in the river Idanoi and to analyze the physical-chemical factors of waters which correlate with the diversity of fish species in the river Idanoi. This study uses the Random sampling method. The results of the research obtained from the four research stations found 1 class, 5 orders, 7 families and 7 species. The highest density value was found at station 1 with a value of 0.023 ind / m2, fish diversity index ranged from 1.072 - 1.829 and the fish uniformity index ranged from 0.92 to 0.98. DO, BOD5 values and oxygen saturation correlated very strongly with fish diversity in river Idanoi village Ononamolo 1 Lot.]]>
<![CDATA[Detection of Essential Oils of Patchouli Leaves (Pogostemon cablin Benth) with Combination of 2,4- Dichlorofenoxyacetate and Coconut Water In Vitro ]]>
<![CDATA[Suci Rahayu]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10025
<![CDATA[The study of essential oils detection of patchouli leaves (Pogostemon cablin Benth) with combination of 2,4-Dichlorofenoxyacetate and coconut water which produced calli had been done at Departement of Food Crops and Horticulture, Tissue Culture Laboratory, North Sumatra and the Organic Chemistry Laboratory of the Faculty of Mathematics and Natural Sciences, University of Sumatera Utara. The aim of the study was to determine the concentration of the combination of 2.4-D and coconut water which added in MS media for detection essential oils in patchouli calli in vitro. The experiment used factorial Completely Randomized Design (CRD) with two factors. The first factor was coconut water with concentrations of 0, 10 and 20%. The second factor is 2.4-D with a concentrations of 0, 0.5 and 1 ppm.The results showed that the optimum combination of 2,4-D and coconut water was capable to induce calli initiation after 13 DAP (days after planting), 80% of calli production, green color, nonfriable, and calli weight of 0,28 gram. The TLC (Thin Layer Chromatography) result showed that the treatment of 0.5 ppm 2,4-D and 10% coconut water produced the same Rf value as Rf standard (patchouli oil) which was 0.87]]>
<![CDATA[Structure of Fish Community in The Alas River of Aceh Tenggara District ]]>
<![CDATA[Hesty Wahyuningsih]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10026
<![CDATA[Research on the Community Structure of Fish on the Alas River in Babul Makmur sub-district Aceh Tenggara district was conducted from April to October 2018. The aim of this research was to analyze the structure of fish communities and to analyze physical-chemical factors related to fish community structures in the water of the Alas River in Babul Makmur sub-district Aceh Tenggara district. This research using "Purposive Sampling" method on the location based on human activities i.e the tributary of the Lawe Pakam (household waste disposal), the meeting of 2 rivers (sand dredging), the river parent (tourism), the mountain stream (free of activity). Sampling using nets. Seven species of fish obtained from the study sites were classified into 3 ordo (Cypriniformes, Perciformes, Siluriformes). The result showed that station 1 had the highest fish density at 0.3 ind / m2 for species Tor tambroides. Station 3 had the highest fish diversity index at 1.6213. Temperature, phosphate, light intensity, light penetration, dissolved oxygen and oxygen saturation had strongly correlated with fish diversity in the waters of the Alas River.]]>
<![CDATA[The Effect Of Giving Nano Herbal Biwa Leaf (Eriobotrya japonica Lindl.) Against Histological Description Of Kidney Rat That Induced By Alloxan ]]>
<![CDATA[Syafruddin Ilyas]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10027
<![CDATA[Diabetes mellitus is a metabolic disease characterized by hyperglycemia due to abnormal insulin secretion and insulin action. Uncontrolled diabetes mellitus will cause various organ complications, one of which is diabetic nephropathy or kidney failure. The aim of this study was to determine the effect of nano herbal of biwa leaves (Eriobotrya japonica) on the structure of gromerulus, renal necrosis, proximal tubular constriction, kidney weight and kidney discoloration. This study uses an analytic study with a true experimental design in male rats (Rattus norvegicus) consisting of five treatments with each of six replications. This study consisted of a negative control group that was only given ad-libitum feed, a positive control injected with alloxan, and two groups injected with alloxan and given a 250 mg/kg and 500 mg/kg biwa nanoherbal. It was concluded that the nanoherbal of biwa leaves is effective enough to reduce blood glucose levels and is safe for consumption by diabetics because it does not damage kidney cells.]]>
<![CDATA[Species Inventory of Araceae In West Block of Batang Toru Forest, North Tapanuli Regency, North Sumatra ]]>
<![CDATA[Nursahara Pasaribu]]>
<![CDATA[ International Journal of Ecophysiology Vol. 3 No. 1 (2021): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v3i1.10028
<![CDATA[Araceae is a family plant that generally inhabits the tropical region with relatively high humidity such as The Batang Toru Forest Area. Environmental conditions such as humid or wet, watery, shady and high rainfall support the growth of Araceae species. Araceae have an unique spadix inflorescence characteristic that protected by spatha. A study on Araceae in Batang Toru Forest Area has never been conducted, leaving the unknown status of the species diversity and distribuion. The aims of this study was to invent Araceae in The Batang Toru Forest West Block area. The study was carried out from July to September 2018. The exploration method were used to invent the Araceae along the existing track path. There were 34 species of Araceae belonging to 8 genera found in the study side. All of species, 25 of them were lived as terrestrial and 9 of them were as epiphytes. The genera with the most species are Homalomena (12 species) and the least are Pothos (1 species). Araceae can lived on the soil, stones, trees, riparian and pond. Araceae can be found at various altitude with high air humidity (73-99 %) and warm temperature (17-27 °C). Araceae also like acid soil (4-7), warm (19-27 °C) with various humidity (1.5-8).]]>
