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[Monitoring of The Palm Oil Plantation Ecosystem Based on Land Macrofauna Diversity ]]>
<![CDATA[Arlen Hanel John]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3982
<![CDATA[Oil palm plantations of PT. Supra Matra Abadi has used palm oil mill effluent to the plantation area as fertilizer (Land Application) to part of its plantation area. The difference in land use and management in the plantation area also determines the presence, both species, density, diversity index value, and soil macrofauna uniformity index. Soil macrofauna plays a role in maintaining the balance of the soil ecosystem. This research has been conducted at PT. Supra Matra Abadi, located in Kebun Panji Bay, Kampung Rakyat District, Labuhanbatu Selatan Regency, North Sumatra Province in May-July 2018. This research was conducted to determine the presence of species, population density, diversity index values, and uniformity of soil macrofauna on oil palm plantations. Determination of the sampling point is done by the Purposive Random Sampling method, soil macrofauna sampling using the Quadratic and Hand Sorting methods. There are 15 species of soil macrofauna which are grouped into 2 phyla, 5 classes, 9 orders, 12 families, and 15 genera. The highest density value was found in the area of plantations that were not given liquid palm oil mill effluent as fertilizer (Non Land Application) of 282.15 ind / m2 and the highest diversity index value was found in the area of oil palm plantations which were fertilized with palm oil mill liquid waste to land area (Land Application) which shows that the condition of the oil palm plantation ecosystem which is fertilized with palm oil mill effluent (Land Application) can support the life, diversity, and uniformity of soil macrofauna.]]>
<![CDATA[Arboretum as Carbon Stock and Carbon dioxide Uptake to Support the Realization of Green Campus at Riau University ]]>
<![CDATA[Sri Wulandari]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3983
<![CDATA[The University of Riau Arboretum is one of the natural environments contained within the campus, having various types of vegetation that can be utilized to support the realization of a green campus. This study aims to determine the benefits of arboretum as carbon reserves and CO2 uptake to support the realization of Riau University's green campus. Research using survey methods by observing in the arboretum. Determination of sampling locations by purposive random sampling by considering the condition of vegetation and topography. Research parameters are: (1) vegetation analysis; (2) carbon stocks and (3) CO2 uptake. The University of Riau Arboretum has a vegetation composition in all strata, namely seedlings, saplings, poles and trees. The number of individual seedlings is higher than other strata, namely 349 individuals. Diversity index in all strata classified as high criteria ranged from 3.22 to 3.42. The total carbon stock of 1.12 tons / ha and CO2 absorption of 4.11 tons / ha, with the arboretum of Riau University (± 10 ha), the CO2 absorption that occurs is 41.1 tons. Thus the existence of arboretum can be used to further optimize its function as carbon reserves and CO2 absorption in realizing the green campus program of the University of Riau.Arboretum]]>
<![CDATA[THE EFFECT OF VERMICOMPOST ON THE GROWTH OF SOYBEAN (Glycine max L.) ]]>
<![CDATA[Sri Pratiwi Aritonang]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3984
<![CDATA[The growth and production of soybean (Glycine max L) fertilized by vermicompost was conducted. The vermicompost used consisted of 4 levels, namely: K0 = no vermicompost, K1 = 60 g, K2 = 90 g and K3 = 120 g, each treatment was replicate 3 times. The results showed that the dose of vermicompost significantly affected to the number of branches, number of pods and seed weight, however the organic vertilizer not significantly affected on plant height, flowering age, number of empty pods and seeds dry weight. The interaction dose of vermicompost has no significant effect on plant height, number of branches, flowering age, number of pods, number of filled pods, number of seed and 100 seeds dry weight.]]>
<![CDATA[Analysis of Concentration of Heavy Metal (Pb) and Cadmium (Cd) In Waterfish (Eichhornia crassipes) in Indragiri River, Riau ]]>
<![CDATA[Elya Febrita]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3985
<![CDATA[Research has been conducted to determine the concentration of Lead (Pb) and Cadmium (Cd) heavy metals in water hyacinth (Eichhornia crassipes) in the Indragiri River Waters of Indragiri Hilir Regency in May-July 2016. Determination of the research station was carried out by purposive random sampling by considering environmental conditions based on community activities around the river and the existence of Eichhornia crassipes. The main parameters in this study include the concentration of heavy metals Pb and Cd in river water, sediments and Eichhornia crassipes, and physico-chemical parameters as supporting parameters. The results showed that the average concentration of Pb heavy metals in river water was 0.276 ppm and Cd was 0.126 ppm. The average concentration of heavy metals Pb in sediments was 4.61 ppm and Cd of 0.75 ppm. The accumulation of Pb and Cd Eichhornia crassipest heavy metals is included in the low category, namely the average concentration of Pb heavy metals in the root organ is 3.02 ppm, on the leaf stalk 2.61 ppm, and on the leaves 2.09 ppm. The concentration of heavy metal Cd at the root was 0.47 ppm, at the leaf stalk 0.39 ppm, and at the leaves 0.362 ppm]]>
<![CDATA[Inventory of Mango Diversity (Mangifera L.) in Bengkulu Province ]]>
<![CDATA[Fitmawati]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3986
<![CDATA[Mango (Mangifera L.) is a horticulture crop that grows in tropical regionthat has high diversity in Bengkulu Province. However, its diversity in this province has not been revealed, whereas on the other hand mango diversity is currently endangered due to the conversion of forests from natural habitat to plantation and industry. This study was aimed to determine the mango diversity in Bengkulu using morphological characters. All of the speciemens were collected from the field using exploration method that conducted from September 2016 to March 2017. A total of 17 individuals of mango were examined, and classified into seven mango species. The examination was conducted on the morphological characters, these characters were then scored and analyzed using NTSYSpc 2.02. The coefficient of similarity of 17 mango trees ranges from 0.45 to 0.80. Dendrogram showed that the clustering of mango was not based on the origin of the population but based on the morphological characters. The first group comprises six individuals and the second group consists of 11 individuals]]>
<![CDATA[Degradation Level and Wetland Rice Rehabilitation Effort in Medan Krio Village Sunggal District Deli Serdang ]]>
<![CDATA[Mhd Zakaria]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3988
<![CDATA[The purposes of this research are to know the level of paddy field degradation, mapping level of paddy field degradation and analyze effort of paddy field rehabilitation in Beringin Subdistrict of Deli Serdang Regency of North Sumatera Indonesia to increase rice productivity. This research was conducted in Medan Krio Village, District Sunggal Regency Deli Serdang of North Sumatera. The study was conducted in March to July 2017. This research used nonfactorial Randomized Block Design (RBD) with 5 levels organic dosage treatment of Compost Waste City, i.e: B0: Control, B1: Dose 1.5% (36,00 ton/ha), B2: Dose 3% (72,00 ton/ha), B3: Dose 4.5% (108,00 ton/ha), B4: Dose 6% (144,0 ton/ha). The parameters that will be analyzed are the physical, chemical and biological properties of soil in paddy fields. The result showed, treatment with Dose 6% (B4) can (1) improve physical properties of soil Bulk Density, Porosity and the effective depth of soil; (2) increase the C-organic content, N-Total levels of P-Available, CEC soil, and low C/N Ratio; (3) increase Soil organic matter and total Microbes. So, Treatment Dose 6% (B4) of compost waste city gives the best effect to the physical, chemical and biological properties of soil in paddy fields]]>
<![CDATA[Effect of Green Fertilizer of Gamal Plant (Gliricidia sepium (Jacq) DC.) On the Growth of Duku (Lansium domesticum Corr.) ]]>
<![CDATA[Eryani]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3989
<![CDATA[Duku is one of the fruits favored by the people of Indonesia. Jambi Province produces duku kumpeh (Lansium domesticum Corr.) Which is known as a national superior product. One obstacle in the development of duku kumpeh by farmers in Jambi is the conventional pattern of cultivation, so product availability is not continuous, because farmers only look after old gardens. One of the efforts to increase and accelerate the growth of duku is by giving green fertilizer. One type of green fertilizer is green fertilizer derived from Gamal plants (Gliricidia sepium (Jacq) Dc.). Gamal contains nutrients, namely: 3.7% nitrogen, 0.2% phosphorus, 2.2% potassium, 3.2% calcium, and 0.8% magnesium. The purpose of this study was to determine the effect of applying gamal green fertilizer on the growth of duku kumpeh. The study used a Completely Randomized Design (CRD) with 5 levels of fertilizer treatment namely 0 g, 6.5 g, 13 g, 26 g, and 52 g. Each treatment was repeated 5 times. The parameters observed were height increase, number of leaves, leaf area, wet weight, and dry weight of plants. The data obtained were analyzed through Analysis of Variance (Anova), and post hoc Duncan Multiple Range Test (DNMRT) at 5% significance level. The results showed that the dose of gamal green green fertilizer affected the growth of plant height, but did not affect the number of leaves, leaf area, wet weight and dry weight of the plant]]>
<![CDATA[Effect of Nanoherbal Haramonting (Rhodomyrtus tomentosa) on Lungs Histology ]]>
<![CDATA[Syafruddin Ilyas]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3992
<![CDATA[The study aim to know to effect of Nanoherbal Rhodomyrtus tomentosa (Haramonting) on lungs histology of Mus musculus. Haramonting in Indonesia as a new source of health-promoting compounds such as dietary fibers, essential fatty acids, and phenolic compounds because there are 19 phenolic compounds including stilbenes and ellagitannins as major components, followed by anthocyanins, flavonols, and gallic acid. Haramonting is made on a nanoscale using High Energy Milling (HEM). This research use the Completely Randomized Design (CRD) at dosage of (100; 141,42; 200; 282,82; 400)mg/20g body weight. The lungs were made into preparations by using the paraffin method and Hematoxylin Erlich-Eosin staining (HE). There were a significant difference (P<0,05) between control group and treatment groups on form of lung cells although no significant in lung weight]]>
<![CDATA[Histology of Spleen after Induction Nanoherbal Rhodomyrtus tomentosa ]]>
<![CDATA[Syafruddin Ilyas]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3993
<![CDATA[The study aim to know to effect of Nanoherbal Rhodomyrtus tomentosa (Haramonting) on spleen histology of Mus musculus. Haramonting in Indonesia as a new source of health-promoting compounds such as dietary fibers, essential fatty acids, and phenolic compounds because there are 19 phenolic compounds including stilbenes and ellagitannins as major components, followed by anthocyanins, flavonols, and gallic acid. Haramonting is made on a nanoscale using High Energy Milling (HEM). This research use the Completely Randomized Design (CRD) at dosage of (100; 141,42; 200; 282,82; 400)mg/20g body weight. The lungs were made into preparations by using the paraffin method and Hematoxylin Erlich-Eosin staining (HE). There were a significant difference (P<0,05) between control group and treatment groups on form of lung cells although no significant in lung weight]]>
<![CDATA[The Potential of Guava Leaf Extract as A Natural Preservation for Fish ]]>
<![CDATA[Riyanto]]>
<![CDATA[ International Journal of Ecophysiology Vol. 2 No. 1 (2020): International Journal of Ecophysiology ]]>
Publisher : <![CDATA[Talenta Publisher ]]>
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DOI: 10.32734/ijoep.v2i1.3994
<![CDATA[Fish is kinds of food that easy to spoil. High protein content in fish makes the food is a good medium for microorganisms. People commonly buy fish for consumption, however, not all fish are consumed at the same time. Fishes were stored in freezer for several days or preserved with additional chemical preservation. The use of organic preservatives have no harm. This paper discussed guava (Psidium guajava L) leave as natural fish preservation. The objectives were to analyze the potency of the leaves as a natural preservation for mackerel fish (Rastrelliger sp.). Fime parameters used to determine the fish quality as follows : gills, eye, texture, odour and mucilage. The treatments were leaf methanolic extract with doses 0, 20, 40, 60 and 80%. Data were taken on from 1 to 5 days after storage. The results showed that (i) Fish quality was decline and start to depraved at 2 day storage, especially at control treatment (0% extract). Treatment at doses 60 and 80%, the fish quality were still relatively good over 3 days storage. Even though the fish samples have been starting spoilage, those fishes were still available to be consumed. At the same time, with the other treatment, the fish samples have been spoiled and no more available to be consumed. However, at 5th day of storage, all samples at all treatments were spoiled. Overall results, it can be concluded that extract of guava leaves can be has as fish preservativedosage]]>
