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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 83 Documents
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Search results for , issue "Vol. 23 No. 3 (2023): July - September" : 83 Documents clear
Mangrove Ecosystem Services in Mitigation for Mollusca Communities in Lembar Sheet District, West Lombok Regency Sekar Partiwi; Agil Al Idrus; Rizal Umami
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4367

Abstract

Mangroves have an important role in mitigation and a significant contribution to the wealth of macrofauna. The success of mangrove management has significantly affected the diversity of macrofauna which are associated biota. The research objectives were to investigate the composition of mangroves and mollusc communities, the ecological conditions of the waters, and evidence of mangrove ecosystem services in mitigation. The research data sources are faunal, ecological, and social data. The research method uses purposive sampling and data analysis using descriptive statistics. The results showed that 7 mangrove species were found in the Cemare mangrove area. Avicennia marina, Bruguiera gymnorriza, Ceriops tagal, Rhizophora apiculata, Rhizophora mucronata, Rhizophora stylosa, and Sonnetaria alba. The dominant mangroves were Rhizopora stylosa (201 ind/Ha) and Rhizopora apiculata (146 ind/Ha). Meanwhile, the highest abundance of mollusc species was obtained by Cerithidea cingulate (38.94%) and Nerita undata (29.20%) from the gastropod class, while from the Bivalvia class, Anadara grandis (36.07%) and Anadara granosa (19.67%) were found). The condition of the aquatic environment at the research site is still within the tolerance range required for the growth and development of mollusk species. Furthermore, the majority of respondents know or are aware that mangroves have an ecological function (habitat/habitat for animals), an economic function (a livelihood location), a physical mitigation function (abrasion resistance), a non-physical mitigation function (reducing environmental heat) Good category. These results indicate that efforts need to be made to increase mangrove revegetation, given its significant benefits in mitigation.
Evidence of Successful Mangrove Conservation Avicennia marina Viewing from Bivalves Diversity in Central Lombok Ulfah Nurkhaeroni; Agil Al Idrus
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4360

Abstract

Administratively, the coastal area of Central Lombok Regency is included in the mangrove conservation program which is currently in the process of rehabilitation. Shellfish as one of the associated biota that live in the mangrove ecosystem. This study aims to analyze the diversity (H'), uniformity (E), dominance (D), and abundance (R) of associated biota in the mangrove ecosystem conservation area on the south coast of Central Lombok Regency. Data analysis consisted of determining sampling stations, processing mangrove vegetation data, processing bivalve data, and environmental parameters. The results showed that there were nine types of mangroves, 15 types of bivalves were found. The highest density of mangroves in Dondon was Avicennia marina (84.16%) and the highest relative frequency of mangrove species (66.67%). The lowest mangrove density in Gili Perigi was Rhizophora stylosa (3.1%) and the lowest relative species frequency (6.67%). Furthermore, the highest relative frequency in Tanjung Batutiang is Avicennia marina (30.00%) and the lowest is Avicennia lanata (3.33). While the highest relative frequency in Gili Perigi was Avicennia marina (50.00%) and the lowest was Rhizopora stylosa (6.67%). The highest value of the dominance index on the Dondon Coast was 0.84 and was classified as low, meaning that no species dominated. In conclusion, the Indonesian government has initiated many mangrove Rehabilitation programs through replanting, especially on Lombok Island. This study shows that members of the genus Avicennia marina have the potential to increase the growth and stability of mangrove ecosystems on the south coast of Central Lombok.
The Utilization of Home Yard Medicinal Plants by Traditional Healers (Battra) in Pentek Village, Sadaniang District of Mempawah Regency Irwan Pirmansyah; Fathul Yusro; Yeni Mariani
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4907

Abstract

Currently, people still choose traditional medicine as one of the options to maintain their health. This conventional medicine uses ingredients from wild plants taken from the forest or plants grown in the home yard. Although the forest provides various medicinal plants, many are currently cultivated in the yard for easy access when needed. This study aims to analyze medicinal plants in the home yard used by Battra in Pentek Village, Sadaniang District, Mempawah Regency. This study used a survey method by conducting interviews with all Battra in Pentek Village. We then analyzed plant species, habitus and parts of plants used, processing methods, usage methods, and state of concoction. The results showed that Battra in Pentek Village used 37 medicinal plants in their home yards, with the most widely used plant family being Zingiberaceae (5 species). The most frequently used plant habitus was herb (56.76%), and the most commonly used plant part was leaves (28.81%). The processing method used was boiling (37.14%), and the usage method was drinking (39%)—the form of concoction used as a mixture (70.27%).
Utilization of Plants as Food Source: A Study in Sungai Bakah Village, Melawi Regency Niconaus Niconaus; Hasan Ashari Oramahi; Fathul Yusro; Yeni Mariani
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4926

Abstract

Nature has a high potential for biological natural resources that humans, including plants as food, can utilize. This study aims to analyze the types of plants as a source of food used by the people of Sungai Bakah Village, Pinoh Selatan District, Melawi Regency. This study used a survey method. Respondents selected using a purposive sampling technique were interviewed to obtain data on the utilization of plants used as food ingredients. The data obtained is then analyzed using use value and fidelity level. The results showed that all respondents interviewed (131 respondents) used plants as a food source. A total of 84 types of plants were used, with fruit as the part that was most used (49.44%). Vegetables and fruits are the most widely used forms of utilization. Plants with the highest UV values ​​came from starch (Gymnopetalum cocinense), rice (Oryza sativa), chilies (Capsicum frutescens L.), and bamboo shoots (Dendrocalamus asper) with a value of 1. 84 plants species had the highest FL values ​​(100), most of which comes from the category of utilization as fruits.  
The Productivity of Red Chili (Capsicum annum L.) Improvement Using Inorganic Fertilizer and Biofertilizer: Implications for Sustainable Agriculture Ade Hilman Juhaeni; Rudi Priyadi
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4933

Abstract

Red chili (Capsicum annum L.) is one of the important horticultural crops, yet its productivity is still relatively low. This study aims to determine the productivity of red chili improvement through the use of inorganic fertilizer and biofertilizer. The factorial randomized group design (RAK) experimental design with 2 factors and 3 replicates (10 plants for each replicate) was used in this research. Factor I consisted of four doses of inorganic fertilizer (K), namely: 200 kg/ha (k1), 300 kg/ha (k2), 400 kg/ha (k3), 500 kg/ha (k4). Factor II consists of four concentrations of biological fertilizer (H), namely: 10 ml/L (h1), 20 ml/L (h2), 30 ml/L (h3), 40 ml/L (h4). The results showed that there was no interaction effect between the use of inorganic fertilizer (NPK) and the concentration of biofertilizer (M-Bio) on fruit weight per plant (g/plant) and fruit yield per hectare (t/Ha). However, the single use of biofertilizer with a concentration of 20 ml/L significantly increased the productivity of fruit weight (555.75 g/plant or 14.81 t/Ha). Biofertilizers such as phosphate solubilizing microorganisms and nitrogen-fixing bacteria can increase the availability of macro and micro nutrients in the soil and the productivity of chili significantly. The use of biofertilizers has the benefit of reducing farmers' dependence on inorganic fertilizers. Therefore, the use of a combination of inorganic fertilizer and biofertilizer not only can be a good alternative to increase the productivity of red chili effectively and sustainably, but also to reduce the negative impact of using inorganic fertilizer on the environment.
Seed Dormancy Breaking of Sugar Palm (Arenga pinnata Wurmb Merr) with Sanding and Submersion in various Concentration of Potassium Nitrate (KNO3) Nurul Chaerani
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4937

Abstract

Sugar palm (Arenga pinnata) is one of the non-timber forest product that has many benefits and still had high economic demands, therefore it is necessary to be cultivated and due to the farmers still utilizing sugar palm stands that grow naturally. The cultivation of sugar palm is so difficult to be done because there was no efficient and effective technology that can break the dormancy problem yet. The objective of this research was to determine the effect of sanding and seeds submersion in various concentration of KNO3 to break the dormancy of sugar palm seeds. The experiment was performed in Greenhouse of Agriculture Faculty of Mataram University from June to September 2015. The experiment was conducted in 2x3 factorial experiments on Completely Randomized Design (CRD) with five replications. First factor was sanding (A):  A1 = without sanding dan A2 = sanding and second factor was submersion in various concentration of KNO3 (N): N1 = 0.4%, N2 = 0.5%, and N3 = 0.6%. Results of this study indicated that both treatments gave significant effect in breaking the dormancy of sugar palm seeds. Sanding and submersion in 0.5% KNO3 resulted in single significant effect on all parameters except embryonic axis. The interaction between both treatments only showed significant effect on rotten seeds.
Morphological Variations of Nepenthes mirabilis (Lour.) Druce in the Peat Swamp Habitat Singgih Tri Wardana
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4958

Abstract

Nepenthes mirabilis is a type of lowland Nepenthes. Nepenthes mirabilis has morphological variations in size and color in its natural habitat. This study was conducted with the aim to determine the morphological variations of Nepenthes mirabilis in peat swamp habitat including stems, leaves and pitchers. This research was carried out in Pulu Beruang Village, Tulung Selapan District, Ogan Komering Ilir, South Sumatera. The research method used exploration method. Determination of the observation sample using a random plot method selected by purposive sampling. The parameters observed in this study were the morphological characteristics of Nepenthes mirabilis stems, leaves and sacs as well as environmental factors. Research results, Nepenthes mirabilis has a round stem shape (teres), red and green in color. The leaves are lanceolate, stalked, the edges of the leaves are flat and smooth, the upper surface of the leaves is green or reddish. Waist-shaped pouch, yellowish green in color with red striated and green with red spots.
New Data of Morphological Variation in Microhyla gadjahmadai Atmaja et al., 2018 (Anura: Microhylidae) from West Sumatra Shinta Triana Putri; Rijal Satria; Reki Kardiman; Fitra Arya Dwi Nugraha
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4962

Abstract

Microhyla gadjahmadai was first described by Atmaja et al. in 2018. For the newly described species category, there is not much information explaining this species and there has been no further research after this species was described, especially in West Sumatra. This study aims to provide information on variations in the morphological characteristics of M. gadjahmadai in West Sumatra, through morphological and morphometric analysis of 8 samples (1 adult male and 7 adult females) found in Puncak Anai (Dempo Anailand), Kanagarian Guguak, District 2x11 Timber Planting, Padang Pariaman Regency, West Sumatra. This study used the Visual Encounter Survey (VES) method. The result of the present study shows that no significant morphological differences between the holotype and paratype of Microhyla gadjahmadai and other specimens from West Sumatera. However, the present study reported that the morphological variations of this species.
Evaluation of Chili Nazla IPB as An Ornamental Chilli for Releasing Variety Abdul Hakim; Muhamad Syukur; Sobir; Awang Maharijaya; Syarifah Iis Aisyah; Dewi Sukma; Arya Widura Ritonga; Muhammad Ridha Alfarabi Istiqlal; Sulassih; Bagas Akmala Putra; Arum Sholikhah
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4976

Abstract

Chili (Capsicum annuum L.) exhibits a wide range of variations in terms of crown shape, fruit shape, fruit color, leaf color, leaf shape, and taste. While chili is commonly known as a food plant, it also serves as an attractive ornamental plant. Specifically, ornamental chili plants are desired to possess specific traits, such as compact growth, high fruit yield, and a variety of fruit colors within a single plant. This study aims to comprehensively describe the quantitative and qualitative superiority of the Nazla IPB variety in terms of its characteristics. The research was conducted in the Leuwikopo Darmaga experimental garden's greenhouse, located in Bogor, utilizing a randomized complete block design with four replications. The Nazla IPB variety, which is an open-pollinated (OP) cultivar, stands out due to its short plant height, ranging from 17.83 to 26.42 cm, making it highly suitable for ornamental purposes. Furthermore, the chili plants of the Nazla IPB variety possess a compact crown shape, enhancing their visual appeal, coupled with their short stature (ranging from 21.83 to 26.69 cm). The primary distinguishing features of the ornamental chili variety Nazla IPB include: 1) the color of the leaves, which transition from green (Green 137 C) to purple (Purple N186 A); 2) the black color of the young chili fruit (Black 203 A); 3) the fruit shape of Nazla IPB, which can be described as moderately triangular; and 4) the fruit undergoes a color transformation from black to dark green and finally to red. Nazla IPB has potential to serve as an attractive decorative plant option.
Can Landuse Intensification Decrease Soil Carbon Stock in Upstream Sumber Brantas Watershed? Anita Dwy Fitria; Syahrul Kurniawan
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): 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.v23i3.4979

Abstract

Upper Brantas watershed with volcanic ash soil has potentially high carbon stock. However, land-use intensification in the upstream watershed area is the potential deterioration of soil quality, mainly degradation. The study aimed to assess the effect of land-use intensification in the upper Sumberbrantas watershed on soil carbon stock. The study was conducted in the upper Sumber brantas watershed, particularly in Kali kungkuk micro watershed, Batu City, East Java – Indonesia. Soil samples were taken at 0-30 cm and 30-100 cm on 4 land uses (i.e., forest, agroforestry, cropland, and shrubland) with three replications. The variable measured include basal area, standing litter mass, soil bulk density, and soil organic C. The results showed that land-use intensification strongly impacted soil carbon stock at 0-30 cm and 30-100 cm depth of soil. The soil carbon stock degradation of around 60% to 67% in the intensive cropping systems and in the post-cropping cultivation was covered by a shrub as compared to the forest soil, especially at a depth of 0–30 cm. The correlation value (p<0.05) between the basal area (0.65) and standing litter mass (0.42) on soil carbon stock, especially at a depth of 0-30 cm, indicated that the basal area and standing litter mass increase soil carbon stock. The result was in line with the soil bulk density by ANOVA test at a depth of 0-30 cm and 30-100 cm showing the effect (p<0.05) where intensive land use consisting of treeless (i.e., cropland and shrubland) increases the soil bulk density.

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