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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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Potential Test of Lactic Acid Bacteria from Infant Feces on The Growth of Staphylococcus epidermidis Farras, Afif; Hasbi, Nurmi; Parwata, Wayan Sulaksmana Sandhi
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.v24i4.7554

Abstract

Staphylococcus epidermidis can cause various health infections such as in the urinary tract, respiratory tract, gastrointestinal tract, wounds, blood, and endocarditis. Treatment of S. epidermidis infections generally uses chemical antibiotics. However, the use of natural ingredients such as good bacteria such as Lactic Acid Bacteria (LAB) can be used as an alternative in treating infections by S. epidermidis. LAB is a probiotic that has benefits on human health. This study aims to determine the antibacterial potential of LAB against the growth of S. epidermidis. This research is a laboratory experimental research with post test only design. The stage starts from making media for test bacteria. Then the bacterial rejuvenation stage was carried out using the media that had been made. After the bacteria grow on the media, the bacteria are made into a suspension. Furthermore, antibacterial tests were carried out using the agar well diffusion method and each treatment was carried out as many as 3 repetitions. All isolates were found to be able to produce inhibition zones against S. epidermidis with 3 isolates with codes 01A 10-5, 01A 10-6 (2), and 03A 10-7 (1) categorized as moderate and 5 isolates with codes 01F 10-6 (2), 01F 10-7 (2), 02AF 10-7 (1), 03AF 10-7 (2), and 04AF 10-7 categorized as weak. The best zone of inhibition in the medium category was produced by locus-shaped LAB isolates. Based on the results of this study, it can be concluded that LAB from baby feces has antibacterial activity with weak to moderate strength, but the antibacterial activity is still classified as ineffective in inhibiting S. epidermidis. Further identification of antibacterial compounds in LAB from baby feces is recommended for quantitative analysis.  
The Effect of Warm Water Compress on Back Pain Intensity in Pregnant Women in The Thirty Trimester Fathiyati, Fathiyati; Sari, Dwinda; Saputri, Eneng Emi
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.v24i3.7556

Abstract

Pregnancy is a physiological thing that in the process will undergo adaptation changes both physiologically and psychologically. Changes in physiological adaptation will affect psychologic adaptation starting from the first trimester to the third trimester. This study aims to find out the effect of warm water compresses on back pain intensity in pregnant women in the third trimester in the independent practice of Midwife Siti Hapsah, S.Tr.Keb in 2024. The design of this study is by using the Quasy Experimental research method with a design used by one group of pre-test post-test with 53 respondents and data collection using observation sheets and then analyzed using non-parametric tests of the Wilcoxon test. The results of the study found that the most respondents were aged 20-35 years as many as 37 people (69.85), the most respondents' education was elementary school 17 people (32.15), respondents who did not work were 30 people (56.6%) and multipara 40 people (11.3%). The results of the analysis obtained a significance value of 0.000 which was smaller than the significance result of 5% (p-value = 0.000 <0.05) so the conclusion is that Ha is accepted, meaning that there is an effect of warm water compresses on the intensity of reducing back pain in pregnant women in the third trimester.
Accuracy of Non-Contact Infrared Thermometer Results with Digital Axillary Thermometers in Infants at Pejeruk Public Health Centers Gifari, Lalu Maulana Azmi; Wiguna, Putra Aditya; Indriyani, Sang Ayu Kompiyang; Parwata, Wayan Sulaksmana Sandhi; Haq, Abiyyu Didar
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.v24i4.7559

Abstract

In Public Health Centers, measuring an infant's body temperature with an axillary digital thermometer often causes discomfort and requires a considerable amount of time to obtain an accurate reading. Non-contact infrared thermometers could offer a suitable alternative due to their quick and portable nature. This study aims to evaluate the accuracy of temperature measurements between non-contact infrared thermometers and axillary digital thermometers for infants, conducted at the Pejeruk Public Health Center. The study employed an observational analytical design, with axillary digital thermometers serving as the gold standard for measurements. Temperature readings were taken from 62 infant participants. The results revealed an Intraclass Correlation Coefficient (ICC) below 0.50, indicating poor accuracy, and a wide agreement limit on the Bland-Altman plot. Therefore, it can be concluded that there is inadequate accuracy between the temperature measurements obtained using the non-contact infrared thermometer and the axillary digital thermometer.
Analysis of Community Structure in Essential Ecosystem Zones Akbar, Muhammad Firmansyah; Idris, Muhammad Husni; Anwar, Hairil
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.v24i4.7561

Abstract

Mangrove forest plant communities living in coastal areas have a significant influence on people’s lives ecologically  and economically. As well as cultivating fisheries commodities and protecting coastal areas from abrasion and stroms, mangrove areas also play an important role in climat change issues. Due to their importance, some water and wetland areas with high conservation value are designated as Essential Ecosystem Areas. Lembar and Sekotong Bay is one of them. This study aims to observe the condition of plant structure and composition in essential areas as well as the environmental conditions that support plant growth. To do this, indices of density, relative density, frequency, relative frequency, dominance, and importance value index were taken from each mangrove species. This was done through vegetation analysis. The observation site consisted of six stations, each of which had 78 observation plot point. The results showed that there were seven mangrove species in the ecosystem area of importance: Rhizophora Apiculata, Rhizophora Stylosa, Rhizophora Mucronata, Bruguira Gymnorrhiza, Avicennia Marina, and Excoaria Agallocha. The highes species density and relative density were owned by Rhizophora Stylosa, and the lowest relative density was owned by Excoaria Agallocha. The Highest species frequency and relative frequency are own by Rhizophora Stylosa Overall, the condition of important mangrove area is still in the medium-dense category. Environmental factors such as temperature, saline, pH, and Humidity are very helpful for the growth of mangrove species.
Analyzing the Influence of Altitudinal Gradients on Clove Physiology and Yield in the Menoreh Highlands Avianto, Yovi; Pratama, Ananta Bayu; Noviyanto, Amir; Fauzi, Firman Rahmat
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.v24i4.7562

Abstract

Clove (Syzygium aromaticum) is a significant industrial crop commodity in Indonesia whose yield and essential oil quality are influenced by altitude. Variations in altitude lead to differences in microclimatic conditions, which in turn affect plant physiological activities and productivity. This study aimed to investigate the impact of altitude on the physiological activity, yield, and essential oil content of clove plants. The research was conducted in the lower (345 m asl), middle (612 m asl), and upper (872 m asl) zones of the Menoreh Highlands from March to August 2022. Results indicated that altitude significantly influenced microclimatic conditions, thereby affecting the physiological status and yield of clove plants. The middle zone exhibited optimal physiological performance and flower yield, with a balanced rate of photosynthesis and transpiration. Higher proline levels in the lower and upper zones suggested temperature stress, which reduced photosynthetic rate and yield. Essential oil production and eugenol content were also influenced by altitude, with the middle zone yielding the highest oil volume, although eugenol content was higher in the upper zone. Correlation analysis revealed that temperature and relative humidity were the dominant factors determining clove yield and quality.
Isolation and Analysis of Microplastics in Ikan Tongkol Euthynnus affinis Cantor, 1849 at Tanjung Luar Fish Landing Base, East Lombok Syahadatina, Rifqah Hashifah; Prasedya, Eka Sunarwidhi; Candri, Dining Aidil
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.v24i4.7566

Abstract

The increasing amount of plastic consumption in Indonesia has an impact on the accumulation of plastic waste on land as well as water, with the nature of plastic that is difficult to decompose by microorganisms causing many organisms to be polluted by the waste. Therefore, research on microplastic content needs to be done to determine the safety of fish which is the food of the community. This study was conducted to find out how the abundance of microplastics as well as the characteristics of microplastics contained in Ikan Tongkol  (Euthynnus affinis) at PPI Tanjung Luar, through an isolation process using a 10% KOH solution added to fish meat, then incubated until both were homogeneous in a water bath at 70°C, 150 rpm. Furthermore, the homogenized sample was filtered using a 250 µm graded sieve. After filtering the sample will be put into a dryer at 40°C for 2 hours before being observed under a microscope. The results of this study indicate that microplastics have accumulated in fish with an abundance of 8.6 MP/Ind with the type of microplastics that most accumulates in the meat of Tuna (Euthynnus affinis) is fiber type microplastics as much as 81% of the total sample and the most dominant color is black. There are 4 microplastics found accumulated in the meat of Euthinnus affinis, namely 81% fiber, 11% fragments, 6% film, and 2% granules.
Isolation and Analysis of Microplastics in Vaname Shrimp (Litopenaeus vannamei Boone, 1931) at Tanjung Luar Fish Landing Base, East Lombok Regency Adawiyah, Rabiatul; Prasedya, Eka Sunarwidhi; Candri, Dining Aidil
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.v24i4.7567

Abstract

Microplastics are plastic debris resulting from the fragmentation process that has a size less than <5 mm. Microplastic contamination in marine waters can have a direct impact on the ecosystem and digestive system of aquatic biota, and is dangerous for humans if consumed because it is toxic. This study aims to determine the abundance and characteristics of microplastics in Vaname shrimp (Boone, 1931) collected by Tanjung Luar Fish Landing Base (PPI), East Lombok Regency, Indonesia. Vaname shrimp samples were taken using the Random Sampling method obtained from fishermen at the Tanjung Luar Fish Landing Base, analyzing the abundance and characteristics of microplastics with 10% KOH. The results showed that the abundance of microplastics obtained was 37 particles with the most accumulated type of microplastics, namely the fiber form of 22 particles/gram with the most dominant color, namely black as much as 57%.  There are 3 forms of microplastics found in vaname shrimp meat (Littopenaeus vannamei), namely fiber 22 particles, fragments 11 particles and filaments 4 particles. Black color as much as 57%, followed by clear color as much as 27%, yellow as much as 11%, and blue as much as 5%.
In Vivo Analgetic Activity Test of Malacca Stem Bark Extract (Phyllanthus emblica L.) by Acetic Acid Induction Method Novisma, Mutia; Saputri, Legis Ocktaviana; Hanifa, Nisa Isneni
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.v24i4.7569

Abstract

The use of analgesics for pain management has limitations related to side effects, effectiveness, and dependence that are often caused. The malacca plant (Phyllanthus emblica L.) has been used empirically on Sumbawa Island to treat throat pain. This study aims to test the analgesic activity of malacca stem bark extract (EKBM) in vivo with acetic acid induction method. Mice were randomly divided into 5 groups including negative control (K-) CMC Na 1%, positive control (K+) ibuprofen 52 mg/KgBB mice, and various doses EKBM1, EKBM2, and EKBM3 consecutively 250, 500, 750 mg/KgBB mice orally. Analgesic activity was assessed based on the number of writhes, % analgesic protection, and % analgesic effectiveness. Phytochemical screening results showed that EKBM contains flavonoids, saponins, steroids, and tannins. The mean number of writhes in groups K (-), K (+), EKBM1, EKBM2, and EKBM3 were 105,60; 75,60; 60,60; 59,40; and 40,20, respectively. The results of one way ANOVA on the number of writhes showed that there were significant differences between all groups (p < 0.05). Furthermore, LSD test was conducted which showed that there were significant differences (p < 0.05) in all EKBM groups compared to K (+) and K (-). There was no significant difference between EKBM1 and EKBM2 groups (p > 0.05). The % analgesic protection values obtained by EKBM1, EKBM2, and EKBM3 were 42,61%; 43,74%; and 61,93%, respectively, while the % analgesic effectiveness values were 150%; 154%; and 218%. Based on the analgesic activity test, EKBM at three dose variations showed analgesic activity.
Biodiversity Indices of Mangrove Community in Gili Sulat, East Lombok Diniyatushoaliha, Ainun; Al Idrus, Agil; Bahri , Syamsul
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.v24i3.7571

Abstract

Mangrove ecosystems play an important role in supporting environmental stability, providing ecological services, and influencing the long-term survival of many living organisms. This research aims to analyse the biodiversity indices of mangrove community in Gili Sulat, East Lombok. The method for determining stations is based on purposive sampling. Each station has three plots. The method for determining plots is based on mangrove density (sparse, moderate, dense). Data were collected using plots of 10x10 m2 for trees, 5x5 m2 for saplings, and 2x2 m2 for seedlings. Diversity, richness, evenness, and dominance values were calculated using the Shannon-Weaver diversity index (H’), Margalef-Richness index (R), Pielou-Evenness index (E), and Simpson-Dominance index (D) to calculate. The results showed twelve mangrove species in tree, sapling, and seedling categories. The diversity index in three stations ranges from low to moderate, the richness index shows species richness of mangrove is low, the evenness index shows that mangrove species evenness ranges from low and high, the dominance index shows that mangrove species dominance range from low and high. Thus, these results present that biodiversity indices of mangrove community in Gili Sulat are: (1) the diversity index (1,73) presents that species diversity and ecolocigal pressure are moderate, (2) the richness index (1,78) presents that species richness is low, (3) the evenness index (0,70) presents that species evenness is moderate and ecosystem condition is less stable, (4) the dominance index (0,26) presents that species dominance is low and almost no species dominate.
Description of The Level of Knowledge of Adolescents Related to Reproductive Health in Prevention of Child Marriage to Reduce Stunting Rates in The Mandalika Special Economic Zone Hardyningrat, Baiq Inna Dwi; Lina Nurbaiti; Fitriannisa Faradina Zubaidi
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.v24i4.7577

Abstract

Child marriage is the underlying cause of stunting, a condition in which children fail to grow to the expected adult height owing to persistent malnutrition. A couple or one of the participants in a child marriage must be under the age of 19. Knowledge related to reproductive health is everything that is known about health conditions in all matters relating to the reproductive system, its functions and processes. The study aims to determine the level of knowledge of 2nd grade high school students about reproductive health in preventing child marriage to reduce stunting rates in the Mandalika Special Economic Zone. This study is descriptive with a cross-sectional method. The respondents of this study were 112 2nd grade high school/vocational high school students in the Mandalika Special Economic Zone. The sample was taken using the simple random sampling method. Data analysis used univariate tests. The results showed that most respondents had a high level of knowledge about the reproductive system, sexual activity and sexually transmitted diseases, child marriage and its impacts, and stunting. The conclusion is that the level of adolescent knowledge about reproductive health in preventing child marriage to reduce stunting rates in the Mandalika Special Economic Zone is in the high category.

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