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INDONESIA
Jurnal Biologi Tropis
Published by Universitas Mataram
ISSN : 14119587     EISSN : 25497863     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology
Jurnal Biologi Tropis (ISSN Cetak 1411-9587 dan ISSN Online 2549-7863) diterbitkan mulai tahun 2000 dengan frekuensi 2 kali setahun oleh Program Studi Pendidikan Biologi PMIPA FKIP Universitas Mataram, berisi hasil penelitian dan ulasan Ilmiah dalam bidang Biologi Sains.
Arjuna Subject : -
Articles 2,520 Documents
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Quality of comply boards from the industrial waste of palm and bamboo Ningsih, Rima Vera; Lestari, Dini; Wulandari, Febriana Tri; Valentino, Niechi; Fahrussiam, Fauzan; Prasetyo, Andrie Ridzki
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6961

Abstract

Requisite of boards as a material for furniture is increasing. Therefore, alternative materials are needed to replace wooden boards such as comply boards. This study aims to determine the quality of comply board from palm and bamboo waste using PVAc adhesives. The treatment used is 12% and 14% adhesive percentages. Parameter tests of comply board of physical properties include moisture content, density, and thickness development; mechanical properties include modulus of elasticity (MOE) and modulus of rupture (MOR). The mechanical properties of adhesive content have a significant effect on the mechanical properties of comply board palm and bamboo namely MOE and MOR the Physical Properties of the resulting comply board meet SNI 03-2105-2006 standards, namely for the parameters of Water Content, Density, Water Absorption. The mechanical properties of comply boards, namely Modulus of fracture (MoR) are not included in these standards. The condition of the results of this study is thought to be.
Community Structure of Fishes at Coral Reef Ecosystem in Pandanan Beach, Northern Lombok, West Nusa Tenggara Irawan, Muhammad Rizki Putra; Candri, Dining Aidil; Zamroni, Yuliadi
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6962

Abstract

One of the most abundant kinds of organism that lived in coral reef ecosystem are fish. Fish rely on coral reefs for shelter, food, and breeding grounds. Lombok is one of the islands that have many hotspots of coral reef ecosystem, one of which is at Pandanan Beach. The precense of fish benefits in both tourism and local economy, however the data about reef fish that lived in Pandanan waters are less known. This research aimed to assess the community structure of fish species in coral reef ecosystem at Pandanan Beach. The method that was used for sampling were UVC (Underwater Visual Census) with BIT (Belt Intercept Transect) technique at three different stations. The results showed 554 individuals which consist of 34 species from 12 families had been identified. The community structure of fish in the three stations showed the moderate level of diversity, stable evenness index with low dominance, and density value of 0,73. Environmental parameters measurement indicate Pandanan waters are suitable for fish growth and survival.
The Effect of Using NPK Fertilizer and Liquid Organic Fertilizer Vegetable Waste on the Vegetative Growth of Purple Eggplant (Solanum melongena L.) Aryani, Maesa; Raksun, Ahmad; Mertha, I Gde
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6973

Abstract

An key factor in promoting the growth and development of plants is fertilizer. Both organic and inorganic fertilizers can be used for fertilization. If inorganic fertilizers are applied over an extended period of time without the incorporation of organic matter, the soil's quality may be compromised, leading to suboptimal plant development. The purpose of this study is to ascertain the optimal fertilizer dose for purple eggplant growth response, as well as the effects of NPK fertilizer, liquid organic fertilizer made from vegetable waste, and a combination of both on the vegetative growth of purple eggplant plants. A two-factor Complete Random Design was employed in this study, with three replicates and five treatment levels for each of the liquid organic fertilizer made from vegetable waste and NPK fertilizer treatment. The Anova two-way test was used to examine the data, and then the DMRT test was performed. The application of liquid organic fertilizer made from vegetable waste and the combination of the two fertilizers had a real effect on plant height, leaf area, wet weight, and dry weight but no real effect on the number of leaves, according to the results. On the other hand, the application of NPK fertilizer had a real effect on plant height, number of leaves, leaf area, wet weight, and dry weight. The results of the DMRT test (5%) indicated that the optimal dosage for plant height, wet weight, and dry weight was 1.5 grams of NPK and 10 ml of liquid organic fertilizer made from vegetable waste; for the number of leaves, it was 1.5 grams of NPK and 2 grams, and for the area of leaves, it was 1 gram of NPK.
Parasitoids and Predators as Biological Agents against White Stem Borer (Scirpophaga innotata) Arum Dewi, Pervitara; Wahyuni, Srilah Nora; Ilwati, Uun; Akram, Ahdiatsa Hairi; Sarjan, M.
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.6976

Abstract

One of the primary challenges in rice cultivation is the disturbance caused by pest infestations. Among the pests that frequently cause damage to rice plants is the white rice stem borer (Scirpophaga innotata). The life cycle of Scirpophaga innotata comprises egg, larva, pupa, and adult stages. This article is based on a literature review and discusses the natural enemies most commonly encountered at each stage of the Scirpophaga innotata life cycle. The findings of this article can be summarized as follows: Natural enemies of the white rice stem borer during the egg stage include parasitoids such as Trichogramma japonicum Ashm., Tetrastichus schoenobii, and Telenomus rowani, as well as the predator Conocephalus sp. During the larva-pupa stage, parasitoids such as Apantheles sp., Bracon sp., Tropobracon sp., and Temelucha bigutella are present, along with predators like Miscrapis crocea and Harmonia octomaculata. Regarding the adult stage, parasitoids were not found to be natural enemies of adult S. innotata. However, the most commonly encountered predators include Coccinella transversalis (Thunberg) and Paederus sp.
Effects of Glyphosate on Cognitive Development, Sensory Sensitivity and Locomotor Balance in Male Rats Fadillah, Fadillah; Irwan , Reziq Marchellino; Afif , Muhamad; Tofrizal , Allimuddin; Zuhir, Elvina; Maliza, Rita
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.6978

Abstract

Glycophate is the active ingredient in RoundupⓇ hebicide, which is commonly used in agriculture. Exposure to the herbicide glyphosate may affect the development of Parkinson Disease in humans. pre-natal and post-natal exposure to glyphosate exerts neurological effects and neuropsychiatric effects, even at low concentrations. This study aimed to examine the effects on cognitive, sensory and motor development in male rats exposed to the active ingredient glycophate in RoundupⓇ at various concentrations. In this study using test animals in the form of male rats with an age of 10 weeks, then the rats were divided into 4 treatment groups, namely the normal group, 100 µL, 50 µL, and 25 µL RoundupⓇ, induction was given orally every day for 4 weeks. Then at the last week, the body weight of the rats was measured and several tests were conducted to see the effect of glycophate induction on rat cognition through the morris water maze and y maze tests, sensory development through the hot plate test, and rat motor development through the hanging wire test. The results showed that glyphosphate administration affected the body weight of the rats, and affected the cognitive development of the rats. The 50 µL dose treatment group showed the most visible effect of glycophosphate exposure on cognitive tests compared to other groups. In the sensory test, the 50 µL ml dose treatment group also had low sensitivity compared to other groups, and low motor ability compared to other groups. Glycophate was seen to affect the cognitive, sensory and motor development of the rats.
Microscopic Examination of Acid-Resistant Bacils in Closed Contacts of Patients With Tuberculosis in The Working Area Of The UPTD Puskesmas Cilegon Rahayu, Ayu Puji; Silviani, Yusianti
Jurnal Biologi Tropis Vol. 24 No. 4 (2024): Oktober - Desember
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i4.6980

Abstract

Tuberculosis is a contagious disease caused by Mycobacterium tuberculosis. The transmission of pulmonary TB occurs by the emission of droplets who are positive for the disease. Attempts were undertaken to examine interactions between cadres and the community. The patient's close contacts underwent microscopic inspection utilising the Ziehl Neelsen staining procedure. Between 2023 and October, a total of 360 cases of tuberculosis will be investigated using the ZN painting method. Among the close contacts of the 72 patients, 20% (6 individuals) will be identified as having tuberculosis. This study aimed to assess the outcomes of BTA microscopic examination conducted on close household contacts within the operating region of UPTD Puskesmas Cilegon in 2024. The research method employed a descriptive observational approach with a cross-sectional design. The study was carried out from 1 February to 9 March 2024 at the UPTD Puskesmas Cilegon. The sample technique employed is purposive sampling. The study findings revealed that out of the total number of respondents, 32 individuals reported having direct contact with individuals affected by tuberculosis. Among these respondents, 13 (40.6%) were male and 19 (59.4%) were female. Out of the 32 individuals who had close contact, one respondent (3.3%) tested positive for BTA when microscopic inspection was conducted. The proximity to the afflicted individual directly correlates with the heightened likelihood of transmission. Proximity between those who are infected and their close contacts can lead to the transmission of the infection, even when sharing the same sleeping space.
The Effect of Respiratory Muscle Stretch Gymnastic (RMSG) on Lung Capacity in The Elderly Nugraharani, Dorotea Galuh Puspita; Amarseto, Binuko
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.6981

Abstract

The elderly are members of society who must be paid attention to, because in the elderly there will be changes, one of which is in the respiratory system, in this case lung capacity, which is influenced by aging, environmental and lifestyle factors which can be measured with a tool called spirometry. Efforts that can be made to maintain lung function in the elderly are by providing exercise, one of which is Respiratory Muscle Stretch Gymnastics (RMSG). The aim of this research was to determine RMSG on lung capacity in the elderly at the Posyandu for the Meaningful Elderly. The research method used was Quasi Experimental with a Pretest-Posttest Control Group Design research design. The sampling technique was Purposive Random Sampling and a sample of 30 elderly people were obtained which were divided into 2 groups. Data collection was carried out using spirometry, which was then carried out by univariate and bivariate analysis tests. The research results showed that there was an effect of RMSG on the elderly with the results in the intervention group increasing the average value, while in the control group the average value decreased. The conclusion obtained based on the results of data analysis is that there is an effect of giving RMSG on lung capacity in the elderly.
Production and Characterization of Compost Macro Nutrients from Mamasa Coffee Waste Amir, Amir; Purnama, Dirhana; Apindiati, Rita Kurnia
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6983

Abstract

The higher the productivity of the Mamasa coffee plant, the greater the waste produced and if it is not processed it will cause environmental problems. This research aims to produce and characterize the macro nutrient value in compost from Mamasa coffee waste using the microorganism bioactivator EM 4. This research was carried out by mixing coffee waste with EM-4, water and sugar in certain proportions. The composting process lasts for four weeks, with observations every week to trigger physical and chemical changes in the compost produced. The research results showed that the compost produced had good physical characteristics, namely black in color, not lumpy and odorless. Determination of macro nutrient levels in the organic material of Mamasa coffee waste before and after fermentation into compost showed a significant increase in the macro nutrients it contains, namely total organic C 25.59%; organic matter was 43.91%, Nitrogen was 2.53%, P2O5 was 1.95%, K2O was 1.68%, C/N ratio was 9.48 and water content was 24.34%. Thus, Mamasa coffee waste can be processed into high quality compost using EM-4, thereby providing a sustainable solution for managing organic waste and increasing soil fertility.
Relationship between Prayer Intensity and Anxiety Levels among Medical Students at Muslim Indonesian University Sakti, Muhammad Reyhan; Abdullah, Rezky Putri Indrawati; Wello, Eny Arlini; Mukhtar, Shulhana; Syamsu, Rachmat Faisal
Jurnal Biologi Tropis Vol. 24 No. 3 (2024): July - September
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i3.6984

Abstract

In the dynamic environment of Indonesian universities, students, particularly those in the medical field, face a crucial juncture of personal growth amid academic rigor. This transition from youth to adulthood brings with it not only academic challenges but also psychological hurdles, notably anxiety. While anxiety is a common human experience, it can impede a student's ability to thrive. However, within the context of Indonesian culture, prayer serves as a powerful tool for mental well-being. Studies have indicated its potential to alleviate anxiety and foster a sense of calmness. Thus, this research endeavors to explore the relationship between prayer intensity and anxiety levels among the 2021 cohort of medical students at the Muslim University of Indonesia, shedding light on the intersection of spirituality and mental health in academic settings. The study revealed that the majority of the 2021 cohort of medical students at Muslim University of Indonesia are 21 years old (54.8%), predominantly female (76.7%), with most exhibiting good prayer intensity (49.3%) and normal anxiety levels (74%). Additionally, Chi-Square analysis indicated a significant relationship between prayer intensity and anxiety levels among these students (p = 0.005<0.05). The study findings indicate that the sampled 2021 medical students at Muslim University of Indonesia exhibit good prayer intensity and normal anxiety levels. Moreover, there's a significant relationship between prayer intensity and anxiety levels among these students.
Impact of Muscle Relaxation on Blood Pressure in Primary Hypertension Patients Sudiang Raya Makassar 2024 Herdiansyah, Muh.; Arifin, Arina Fathiyyah; Muchsin, Achmad Harun; Wahyu, Sri; Arfah, Arni Isnaini
Jurnal Biologi Tropis Vol. 24 No. 2 (2024): April - Juni
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v24i2.6985

Abstract

Hypertension is a serious disease that causes serious complications such as stroke, local myocardial necrosis, cardiovascular disorders, and kidney failure. Hypertension is often nicknamed the "Silent Killer" because it has no side effects. Information from the World Wellbeing Association (WHO) in 2015 shows that this figure will increase to 1.5 billion cases in 2025. The 2018 Fundamental Welfare Exploration (Riskesdas) in Indonesia revealed that the prevalence of hypertension in the population aged over 18 years was 658,201 cases. Moderate muscle relaxation exercises are a non-pharmacological measure that can help lower blood pressure. It is hoped that this examination will determine the relationship between muscle relaxation and reduced blood pressure in essential hypertension patients at the Sudiang Raya Makassar Community Welfare Center. The technique used is One Gathering Pretest-Posttest Plan. Information is dissected using the T test Suitable for evaluating differences in blood pressure during testing. The results of the review showed a significant reduction in systolic and diastolic blood pressure after moderate muscle release treatment, with a p value of 0.000 (p<0.05). Systolic and diastolic blood pressure were reduced by 9.31 mmHg and 4.76 mmHg respectively. There is an effect of mild muscle relaxation treatment on reducing blood pressure in essential hypertension patients at the Sudiang Raya Makassar Community Welfare Center.

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