cover
Article Per Year (5 Year)
All
Home Page
OAI Link
Editorial Team
Contact
Reviewer
Google Scholar
Contact Name
-
Contact Email
-
Phone
-
Journal Mail Official
-
Editorial Address
-
Location
Kota mataram,
Nusa tenggara barat
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
 100   101   102   103   104 
Study on Water Quality of Sekadau River Using Pollution Index Method Hardina, Ellan; Wahyuni, Dwiria; Zulfian
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.v24i2.6531

Abstract

One of the leading causes of declining water quality is contamination from human activities. The Sekadau River serves as a primary water source for the residents of Sekadau Regency, facilitating bathing, laundry, kitchen equipment cleaning, and freshwater fish cultivation. The objective of this study is to evaluate the water quality of the Sekadau River, comparing it against Class II standards as stipulated in Government Regulation No. 22 of 2021 on Environmental Protection and Management. Subsequently, pollution levels in the Sekadau River at the measurement point were determined using the Pollution Index Method (PIM). The research findings reveal that the pollution index values for 2018, 2022, and 2023 fall within the lightly polluted category. Conversely, in 2019, the water quality of the Sekadau River exhibited improvement. It complied with water quality standards per the Minister of Environment and Forestry Decree No. 115 on Quality Status Determination Guidelines. Consequently, the Sekadau River remains suitable for bathing, laundry, freshwater fish cultivation, and other purposes requiring water of the same quality as its designated use. However, considering the increasing pollution trends in 2022 and 2023, appropriate measures are necessary to prevent the Sekadau River from becoming more polluted.
Changes HDL and LDL Levels After Using Olive Oil and Figs Extract on White Rats with A High-Fat Diet Alhumaerah, Musdalifah; Syamsu, Rachmat Faisal; Karim, Marzelina; Nurmadilla, Nesyana; Murfat, Zulfitriani
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6536

Abstract

Hypercholesterolemia often initiates the pathogenesis of atherosclerosis which can occur slowly. As free radicals increase, the need for antioxidants also increases. Reducing LDL and increasing HDL levels is the target of therapy for hyperlipidemia patients with the main goals of lifestyle changes and drug therapy. Olive oil and fig extract have therapeutic benefits as alternative treatments from MUFA content dominated by oleic acid and phenolic compounds. The polyphenol content is known to inhibit the formation of atherosclerosis and inhibit the increase in MCP-1 levels in white mice on a high-fat diet. Therefore, it is hoped that the administration of figs extract and olive oil can overcome dyslipidemia, especially changes in HDL and LDL levels in white mice. To determine changes in HDL and LDL levels. The research conducted was a true experimental research was used with a Pre-Post control group research design and test statistical analysis with Microsoft Office 2013. Showed there was an effect of fig extract (Ficus Carica L) on changes in HDL levels and the effect of olive oil (Olea europea L) on changes in LDL levels in white rats (Rattus novergicus) fed a high-fat diet. The intervention of fig extract and olive oil had a significant effect on the group given the single intervention.
Etnobotany of Gardens Fruit Plants Minangkabau Community in Payakumbuh Subdistrict, West Sumatera Aziz, Fadhila; Lestari, Ria Windi; Fitriah, Umi Novita; Manik, Visi Tinta
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6546

Abstract

Ethnobotany is the study of the relationship between human culture and plants. Ethnobotany plays important role in understanding the behavior of the people of an area in utilizing the plants around them. This study aims to determine the utilization of garden fruit plants by Minangkabau community in Payakumbuh subdistrict, West Sumatra. The method used in this study was purposive random sampling. The data were collected by conducted by direct observation and interview. The data were analyzed descriptively with a quantitative approach using the Index of Culture Significance (ICS). The results showed that the Payakumbuh sub-district home garden category was classified as moderate, are planted with 34 species of fruit plants from 19 genera. Fruit plants that are often found in the home garden of the Payakumbuh subdistrict are bananas (Musa sp.) around 51.02% and papaya (Carica papaya) around 13.80%. Fruit plants that are cultivated besides being consumed in the form of fruit are also used as medicine, shade plants, seasonings, cultural rituals, and food wrappers. Parts of the plant that are utilized besides fruits are leaves, canopy, fruit skin, flowers, and seeds. Banana (Musa sp.) has the highest ICS value.
Physiognomy and Structure of Mangrove Populations in The Region Sekotong Bagek Kembar Ecotourism Kurniawan, Ramdani; Santoso, Didik; Japa, Lalu
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6549

Abstract

Physiognomy and mangrove population structure are strongly influenced by changes in land use.  In the Bagek Kembar mangrove ecotourism area to support the fulfillment of human needs that cause changes in mangrove population structure. This study was conducted to determine the physiognomy of mangroves and analyze the population structure of mangrove species in the Bagek Kembar Mangrove Ecotourism area, Sekotong. This research is a type of exploratory and descriptive research using a combination of methods and plots, with a total of 3 stations with 11 transects in the data in the Bagek Kembar mangrove ecotourism area. The results of this study showed that 7 mangrove species were recorded which belonged to 4 families. The value of the diversity index and dominance index in the Bagek Kembar mangrove ecotourism area is included in the low category and the dominance index value is included in the high category, namely the Avicennia marina species. The species diversity index for mangrove seedlings is low (0.625) and the species diversity index for trees and saplings is medium (1.130 and 1.028).
Carcass Characteristics and Meat Quality of Balitbangtan's Superior Village Chickens (KUB) Slaughtered at Different Ages Tamzil, M. H.; Indarsih, B.; Haryanto, K. A.
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6550

Abstract

The research aims to determine the effect of slaughter age on carcass characteristics and meat quality of KUB chickens kept by farmers as meat producers. The research used a completely randomized design with a unidirectional pattern using 65 un-sexed Kampung Unggul Balitbangtan (KUB) chickens. The chickens were divided into 4 slaughter age treatments, namely 4 weeks, 6 weeks, 8 weeks and 10 weeks. At each slaughter age, 15 chickens are used as replications. All chickens in the slaughter age group are slaughtered using the bleeding method in the neck area by cutting off the respiratory tract, blood vessels and digestive tract. After the chicken is declared dead, it is dipped in warm water (temperature 80oC), then the feathers are cleaned, the head and neck, legs are cut and the internal contents are removed. For the purposes of measuring meat quality, meat samples were taken from the chest and then measured at the Animal Products Processing Technology Laboratory, Faculty of Animal Husbandry, Mataram University. Slaughter age increased live weight, lower thigh weight percentage, meat cooking loss value (P<0.01), carcass weight percentage, wing weight percentage, upper thigh weight percentage, and water holding capacity (P<0.05), but did not affect breast weight percentage , back weight and meat pH (P>0.05). It was concluded that delaying the age of slaughter increases the edible part and decreases the inedible part. This research delays the age of slaughter to increase the edible part and reduce the inedible part.
Estimated Tree Carbon Reserves and Saplings in the Nagari Sumpur Kudus Social Forestry Area, Sijunjung Regency Amanda, Falencia Mauri; Chairul, Chairul; Solfiyeni, Solfiyeni; Mukhtar, Erizal
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6552

Abstract

The forest within The Social Forestry of Nagari Sumpur Kudus, Sijunjung Regency has the ability to store carbon reserves. The forest area located in the highlands shows a lot of biodiversity, influenced by the ability of the forest to maintain carbon stocks and diverse plant species in the area. The purpose of this study is to determine the total biomass and total carbon stocks stored in the Social Forestry Area of Nagari Sumpur Kudus, Sijunjung Regency. This research was conducted from May to October 2023. Taking at tree and sapling strata uses a nondestructive sampling method. From the results, it is obtained that the three strata are as many as 14 families and 14 species. The sapling strata is obtained from as many as 17 families and 37 species. The total above-ground biomass is l78,97 ton/ha consisting of 177,83 ton/ha tree biomass and 1,13 ton/ha sapling biomass. The total above-ground carbon stock is 86,11 ton/ha consisting of tree carbon stock 85,58 ton/ha and sapling carbon stock 0,53 ton/ha. The Social Forestry Area of Nagari Sumpur Kudus, Sijunjung Regency has the potential to store carbon stocks which is included in the medium category and need to be maintained.
Relationships of Pitcher Plants (Nepenthes spp.) in Kapusin Nature Conservation Area, Pontianak, West Borneo Oktapia, Ersa; Turnip, Masnur; Lovadi, Irwan
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6563

Abstract

Pitcher plants (Nepenthes spp.) are supporting ecotourism activities plants because it has a unique morphologies. The Kapusin Nature Conservation Forest is a secondary forest that has potential as an ecotourism site because of its beauty and also the natural habitat of Nepenthes spp. This research aims to determine the types and relationships of Nepenthes spp. sin the Kapusin Nature Conservation Area. Sampling used the exploring method and then the results were identified by observing the morphologies of the stems, leaves and pitchers. There were 49 morphological characters observed, consisting of 29 qualitative characters and 20 quantitative characters. Relationships between individuals was cluster analyzed using the UPGMA (Unweighted Pair-Group Method with Arithmatic) method using NTSys (Numerical Taxonomy System) software version 2.02. The results obtained were 4 Nepenthes and 2 hybrid Nepenthes consisting of N. ampullaria, N. bicalcarata, N. mirabilis, N. gracilis, N. xtrichocarpa and N. xcoccines. The results of the grouping analysis showed that the Nepenthes found had a similarity rate of 53% and were divided into 4 clusters, namely cluster 1 consisting of N. ampullaria and N. xtrichocarpa species, cluster 2 of N. gracilis species, cluster 3 of N. mirabilis and N. xcoccines species. and cluster 4 species of N. bicalcarata.
Diversity and Abundance of Phytoplankton in the Coastal Waters of Batu Kijuk Sekotong, West Lombok Nadiyah, Nurfadhilah; Idrus, Agil Al; Japa, Lalu
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6567

Abstract

Sekotong is a region in the West Nusa Tenggara Province, characterized by its coastal area with significant potential natural resources for marine fisheries. The feasibility of water quality for marine aquaculture can be assessed through quantitative and qualitative tests on the biota inhabiting a water body, such as phytoplankton. This research aims to determine the abundance and diversity of phytoplankton in the coastal waters of Batu Kijuk. A 20 μm plankton net was used to filter seawater samples taken as much as 100 L of water. Preserving water samples using formalin with a concentration of 4%. Data analysis uses calculations of individual abundance, species diversity and dominance index. The random sampling method was used to determine the sampling location. The research results mean the average abundance of phytoplankton is 256,667 Ind/L. The species diversity index (H'=2.41) was grouped into an intermediate index and a species dominance index (C=0.13). The research results showed that the phytoplankton community identified in Batu Kijuk Beach waters consisted of 4 classes and 36 species.
Optimizing Soybean Chlorophyll Content Under Drought Stress: Unveiling the Potential of Biostimulants from Padina minor Yamada with Different Solvent Extraction De Yudanur, Parissa Anandita; Noli, Zozy Aneloi; Mansyurdin, Mansyurdin
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6568

Abstract

Biostimulants are natural compounds that can stimulate plant growth. Biostimulants from Padina minor contain secondary metabolites and growth-regulating substances needed in various plant growth metabolisms, including soybeans (Glycine max L.). Biostimulants also play a role in enhancing drought stress tolerance in plants. Several solvents are used to extract natural compounds found in P. minor. This study aims to investigate the effect of P. minor biostimulant extracted using various solvents on soybeans' chlorophyll content under different drought stress levels. The study used a completely randomized design (CRD) with two factors: a. Solvent (control, aquadest, methanol, and ethanol) and b. Soil field capacity (100%, 75%, 50%, and 25%). Applying P.minor as biostimulant extracted with methanol solvent showed higher average chlorophyll a, b, and total chlorophyll than other solvent types. Imposing stress up to 25% did not significantly affect soybean chlorophyll levels. However, the interaction between soil field capacity and P. minor extract from methanol solvent can trigger resilience response to drought conditions up to 25% soil field capacity and provide the highest average chlorophyll content compared to other treatments during the soybean vegetative period. Methanol is the best solvent for extracting P. minor as biostimulant and can provide the highest average chlorophyll content at 25% soil field capacity.
Chronic Suppurative Otitis Media of Auricle Dextra Sinistra: Case Report Ikhsani, Arryza; Soesanto, Bambang
Jurnal Biologi Tropis Vol. 24 No. 1 (2024): Januari - Maret
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.v24i1.6569

Abstract

Chronic suppurative otitis media (CSOM) is a chronic infection of the mucoperiosteum and osseous tissue of the middle ear, characterized by perforation of the tympanic membrane and a distinctive symptom of otorrhea. Globally, this disease affects a considerable number of individuals, ranging from 65 to 330 million. The majority of those affected reside in less developed countries. The aim of this case report is to provide a comprehensive understanding of CSOM. This study includes a literature review sourced from various databases over the past 10 years. The case report discusses a 65-year-old female patient with chronic suppurative otitis media from history taking to the therapy given. Chronic suppurative otitis media is often characterized by ear discharge (otorrhea) and hearing loss. Accurate diagnosis is crucial to prevent complications and improve healing prospects.

Page 102 of 252 | Total Record : 2520

 100   101   102   103   104 

Filter by Year

2013 2026


Reset
Filter By Issues
All Issue Vol. 26 No. 1 (2026): Januari-Maret Vol. 25 No. 4 (2025): Oktober-Desember Vol. 25 No. 4b (2025): Special Issue Vol. 25 No. 4a (2025): Special Issue Vol. 25 No. 3 (2025): Juli-September Vol. 25 No. 2 (2025): April-Juni Vol. 25 No. 1 (2025): Januari - Maret Vol. 24 No. 4 (2024): Oktober - Desember Vol. 24 No. 3 (2024): July - September Vol. 24 No. 2 (2024): April - Juni Vol. 24 No. 2b (2024): Special Issue Vol. 24 No. 1 (2024): Januari - Maret Vol. 24 No. 1b (2024): Special Issue Vol. 23 No. 4 (2023): October - December Vol. 23 No. 3 (2023): July - September Vol. 23 No. 2 (2023): Special Issue Vol. 23 No. 2 (2023): April-June Vol. 23 No. 1 (2023): Special Issue Vol. 23 No. 1 (2023): January - March Vol. 22 No. 4 (2022): October - December Vol. 22 No. 3 (2022): July - September Vol. 22 No. 2 (2022): April - June Vol. 22 No. 1 (2022): January - March Vol. 21 No. 3 (2021): September - Desember Vol. 21 No. 2 (2021): Mei - Agustus Vol. 21 No. 1 (2021): Januari - April Vol. 20 No. 3 (2020): September - Desember Vol. 20 No. 2 (2020): Mei - Agustus Vol. 20 No. 1 (2020): Januari - April Vol. 19 No. 2 (2019): Juli - Desember Vol. 19 No. 1 (2019): Januari - Juni Vol. 18 No. 2 (2018): Juli - Desember Vol. 18 No. 1 (2018): Januari - Juni Jurnal Biologi Tropis vol.17 No.2 Desember 2017 Jurnal Biologi Tropis vol.17 No.1 Juni 2017 Jurnal Biologi Tropis. Vol.16 No.2 Desember 2016 Jurnal Biologi Tropis. Vol.16 No. 1 Juni 2016 Jurnal Biologi Tropis. Vol.15 no.2 Desember 2015 Jurnal Biologi Tropis. Vol.15 No. 1 Juni 2015 Jurnal Biologi Tropis. Vol.14 No. 2 Desember 2014 Jurnal Biologi Tropis. Vol.14 No. 1 Juni 2014 Jurnal Biologi Tropis. Vol.13 No. 2 Desember 2013 Jurnal Biologi Tropis. Vol.13 No.1 Juni 2013 More Issue