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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 51 Documents
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Search results for , issue "Vol. 22 No. 4 (2022): October - December" : 51 Documents clear
Larvacidal Effect of Methanol Extract from Soursop Leaves Against 3rd Instar Larvae of Culex sp. Mortality Ni Putu Maitri Vidya Cita Riesky; Syamsul Bahri; Lalu Japa
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.3906

Abstract

The Culex genus is widely distributed in Indonesia. It is responsible for disrupting and interfering of human daily activities and also transmitting some diseases for human. Vector control strategies normally involve the use of synthetic larvacide however excessive use causes adverse effect on environmental quality and resistance to larvae. Thus, extract from soursop (Annona muricata L.) leaves may be an alternative sources of larval control agents. The present study reveals the larvicidal effect of methanol extract from soursop leaves against 3rd instar larvae of Culex sp. mortality. Experimental method with Completely Randomized Design (CRD) consisting of 6 treatments (0 ppm, 125 ppm, 250 ppm, 500 ppm, 1000 ppm and 2000 ppm) and 4 replications was carried out with Culex sp. 3rd instar larvae and the larval mortality was recorded after 48 hours since the exposure. Data were analyzed using one way ANOVA which was continued by Tukey HSD and followed by Probit analyze to determine LC50 and LC90. The results showed that the methanol extract of soursop leaves exhibited significant larvicidal activity with LC50 and LC90 values are 586,099 and 2119,645 ppm. The highest concentration increases the mortality rate of larvae. In conclusion, the soursop leaves methanol extract has a larvacide effect on the 3rd larvae of Culex sp. 
The Long-Tailed Monkey (Macaca fascicularis) Food Preferences In The Mount Pengsong Area Rifcka Aulia Hidayati; Muhlis Muhlis; M. Yamin
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.3907

Abstract

This study aims to know the type and food preference for the long-tailed monkey (Macaca fascicularis) in the Gunung Pengsong area. Data were collected using the observation method by direct observation at certain predetermined points consisting at the forest area around the settlement of Kuranji Village. This research was analyzed descriptively and qualitatively. The results of the research on the type of food Macaca fascicularis found in the forest area of ​​Mount Pengsong as many as 28 plant species, while around the settlement of Kuranji Village as many as 17 plant species. The preference of Macaca fascicularis in the forest area of Mount Pengsong was obtained as many as 5 plant species consisting of Ficus benjamina 15.2%,  Syzygium cumini 11.9%, Durio zibethinus 7.3%, Bambusa vulgaris 6.7% and Syzygium aqueum 6.6%, while the preference of Macaca fascicularis around the settlement of Kuranji Village was obtained as many as 9 plant species consisting of Muntingia calabura 17,5%, Moringa oleifera 12,4%, Syzygium cumini 11,3%, Nephelium lappaceum 10,3%, Ficus carica  8.9%, Mangifera indica 8%, Syzygium aqueum 7,9%, Ficus benjamina 6.8% and Manilkara kauki 5.7%.
The Effects of Liquid Organic Fertilizer of Vegetable Waste on The Growth of Cayenne Pepper Plants (Capsicum frutescens L.) Baiq Elita Mandalini; Prapti Sedijani; Ahmad Raksun
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.3908

Abstract

Cayenne pepper (Capsicum frustescens L.) is one of the commodities in Indonesia. The agricultural sector still relies on organic fertilizers to increase the productivity of Cayenne pepper plants. Excessive use of inorganic fertilizers will disrupt the balance of the amount of nutrients in the soil which results in plant metabolism. This study aims to determine the effect of liquid organic fertilizer from vegetable waste on the growth of cayenne pepper plants a completely randomized design (RAL) with 6 levels of treatment (0 ml, 20 ml, 40 ml, 60 ml, 70 ml and 80 ml), was used plants each with 4 repetitions and 4 fertilization times. The plant growth variables observed in this study includ plant height, number of leaves and wet weight. The data obtained were analyzed using one way Anova and further test using Duncan Multiple Range Test (DMRT) at a test level of 0.05. The results showed that the liquid organic fertilizer treatment of vegetable waste had a significant effect on the growth of cayenne pepper plants. Concentration of 80 ml of liquid organic fertilizer gave the best effect on plant height, number of leaves and wet weight among the concentrasi applied.
Biological Aspects of Charybdis hellerii In The West Tiworo Strait Waters, South Konawe, Southeast Sulawesi Amrin Amrin; Syamsul Kamri; Abdul Hamid
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.3934

Abstract

The study on the biological aspects of Charybdis hellerii (A. Milne-Edwards, 1867) in the world and Indonesia were very limited. This study aims to measure the sex ratio, gonad development, carapace width and body weight relationship, condition factor, the first size sexual maturity, and fecundity. This study was conducted from July to September 2020 in the western of the Tiworo Strait, South Konawe, SoutheastSulawsei. The C. hellerii samples were bycatch of the blue swimming crab using collapsible traps. The results of sex ratio based on a period show significantly different (p<0,05) with a ratio of 1:1, except Agust. Gonad development males and females dominated mature, while ovigerous females dominated immaturely. The carapace width and body weight relationships between males and females exhibited a strong and positive relationship (r>0,75) with a pattern of growth allometric negative. Condition factor males significantly different (p<0,05) from females and ovigerous females. The first size carapace width sexual maturity male and female respectively were 61,86 mm and 48,90 mm. Fecundity of C. hellerii ranging from 18706 to 506876. These data on biological aspects can contribute to the sustainable management of C. hellerii in the Tiworo Strait.
Physical, Chemical, and Microbiological Quality Analysis of Home Ice Cubes, Beams, and Crystals in Gang Lebar, Wonocolo, Surabaya Anisa Shofiyana Azhari; Esti Tyastirin; Hanik Faizah
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.4093

Abstract

Ice cubes are complementary products made from frozen water. If ice cubes have been contaminated by chemical compounds or microorganisms, it will cause various health problems. The purpose of this study was to determine the quality of ice cube, block and crystal houses in the Gang Lebar area, Wonocolo, Surabaya. The physical parameters of ice cubes observed were color, smell and taste. The chemical parameters analyzed were Fe and pH. Microbiological parameters were tested by Total Plate Count (TPC), Most Probable Number (MPN), and Salmonella contamination test. The results showed that by observing the physical parameters of the color of the ice cubes, 1 sample of ice cubes was obtained which met the quality requirements of SNI 3839: 2019, namely sample K1, on the physical observation of smell and taste, 1 sample was obtained which did not meet the requirements, namely the ice block sample. Analysis of pH and Fe chemical parameters showed that all samples met the quality requirements of SNI 3839: 2019 in the pH test. Meanwhile, the Fe test of all samples was declared ineligible. Microbiological analysis of ice cubes showed that 1 sample did not meet the requirements. Furthermore, the results of the MPN coliform test stated that 1 sample met the quality requirements with a value of 7 APM/100mL in sample K1. The Salmonella contamination test found 1 positive sample containing Salmonella, namely in the ice block sample.
In Vitro Evaluation of Seagrass Extracts as a Prevention of Microfouling Formation Keti Fitri; Sri Puji Astuti; Ahmad Jupri; Faturrahman Faturrahman
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.4097

Abstract

Microfouling is the attachment and colonization of bacteria and microalgae on the surface of objects immersed in the sea. So far, the control of biofouling on the surface of marine hulls has been using paints containing Tributylin Organotin (TBT) which have adverse effects on non-target organisms and are not friendly to the environment. The development of environmentally friendly antifouling paint is a solution to overcome the growth of biofouling. This study aimed to evaluate in vitro extract of Thalassia hemprichii as an anti-microfouling agent. Extraction of bioactive from Thalassia hemprichii was carried out by maceration. The filtrate is divided into five kinds of concentration, namely 0%, 25%. 50%, 75%, and 100% were then added to paint A as an anti-microfouling agent. The observed variables were microfouling biomass and the density of bacteria and microalgae attached to the steel plate. The results showed that with increasing concentration applied to the plate caused a decrease in the number of bacteria. The average decrease in each bacterial concentration was 84 x 10^6 CFU/mL, 65 x 10^6 CFU/mL, 41.5 x 10^6 CFU/mL, 28.7 x 10^6 CFU/mL, and 15.8 x 10^6 CFU/mL, respectively. Microalgae attached to the steel plate also experienced a reduction with the average values sequentially being 37 x 10^4 cells/mL, 14 x 10^4 cells/mL, 8 x 10^4 cells/mL, 5 x 10^4 cells/mL, and 2 x 10^4 cells/mL. Likewise, the microfouling biomass on steel plate also decreased in amount with the average values being 99.27 mg, 93.4 mg, 66.43 mg, 59.13 mg and 30.2 mg, respectively. Thus, Thalassia hemprichii extract has the potential to prevent the formation of microfouling.
Factors Related to Outcome and Length of Hospital Stay for Elderly Patients with COVID-19 at Mataram University Hospital in 2020-2021 Komang Pranayoga Prandhana Putra Nartha; Prima Belia Fathana; Rina Lestari
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.4136

Abstract

Indonesia is one of the countries with the highest mortality rate for COVID-19 cases. The elderly group contributed the highest COVID-19 death outcome, which was 48.9% of the total COVID-19 death cases in Indonesia. This study aims to determine the factors related to outcome and length of stay of elderly patients with COVID-19 at the Mataram University Hospital in 2020-2021. This study is a cross-sectional study using the consecutive sampling method obtained from the medical records of elderly patients with confirmed COVID-19 that had met the inclusion and exclusion criteria at the Mataram University Hospital. Univariate and bivariate data analysis using chi-square test. The results showed that 66.7% of the elderly with death outcomes were aged 60-70 years, 77.8% were male, 88.9% had >1 comorbidity and 66.7% had a critical illness degree. Based on length of hospital stay, 53.3% of the elderly with length of hospital stay >14 days were >70 years old, 73.3% were male, 73.3% had >1 comorbidity, and 46.7% had moderate disease. Factors related to the outcome were comorbidities (p=0.015) and disease degree (p<0.001). Factors related to the length of hospital stay were age (p=0.049) and comorbidities (p=0.029). There is a significant relationship between comorbidities and disease severity with the outcome. There is a significant relationship between age and comorbidities with the length of hospital stay.
Identification of Types of Fish Captured by Fishermen at TPI Wuryantoro Wonogiri that are Consumed by the Community Tri Wiharti; Nur Rokhimah Hanik
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.4137

Abstract

Research with the title “Identification of Types of Fish Captured by fishermen at TPI Wuryantoro Wonogiri that are consumed by the community”.The aims of this study are: to identify the types of fish caught by fishermen at TPI Wuryantoro that are consumed by the community as student learning materials in the Vertebrate Animal Systematic Course, Biology Education Study Program, Faculty of Teacher Training and Education, Veterans University Bangun Nusantara Sukoharjo in 2021. In In this study, fish sampling was carried out at the Wuryantoro fish auction, Gajah Mungkur Wonogiri reservoir, while identification was carried out in the laboratory of the Biology Education Study Program, FKIP Univet Bantara Sukoharjo. The results of the identification of the types of fish caught by fishermen at TPI Wuryantoro, Gajah Mungkur Wonogiri reservoir. There are 7 types of fish, of which 7 species of fish were found to be in 1 class, namely the Ostheichthyes class, included in 2 sub-classes, namely the Teleostei and acthynopterigii subclasses, included in 4 orders, and 7 families. The fish are: red snapper (Lutjanus argntimaculatus), catfish (Clarias batrachus), tilapia (Oreochromis niloticus), Tawes Fish (Barbonymus gonionotus), betutu fish (Oxyeleotris marmorat), cursed fish / cork (Channa striata), catfish (Pangasius hypophthalmus). Fisherman's catch at TPI Wuryantoro Gajah Mungkur Wonogiri reservoir, can be used as study material for students of the Vertebrate Animal Systematic course.
The Relationship of Plant Types Familia Araceae on The Mountain Sidole Track Central Sulawesi Based on Morphological Character Samsurizal M. Suleman; I Made Budiarsa; Achmad Ramadhan; Moh. Iqbal; I Komang Suletra
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.4138

Abstract

The Araceae family plant in the Mount Sidole has a diversity and variety of life forms. The purpose of this study is to describe the family relationship of Araceae family based on morphological characters. Sampling using the path method (belt transect) with free collection techniques. The size of the track used is 10 m wide and ± 15 km long along the Sidole Mountain climbing track at an altitude of 400-1780 m above sea level. Morphological data measurement refers to 37 meristic and qualitative characters. Processing data using the File Editor Program (PFE) and analyzed with the Multivariate Statistical Package (MVSP) program. Determination of similarity index with the Simple Matching Coefficient method and kinship between types using the Unweighted Pair-Group Method Using Arithmetic Average (UPGMA). The results of specimen collection are 26 species. Based on the dendrogram of Familia Araceae divided into three groups. Group I are 9 species of hemiepipitic groups which cluster at a coefficient of 76%, namely Amydrium medium, Pothos scandens, Epipendrum sp., Scindapsus treubii, S. pictus, Rhaphidophora sp., R. sylvestris, R. lobbii and R. puberula. Group II are 8 species of geophytes grouping at 77% coefficient, namely Colocasia oresbia, C. esculenta, Xanthosoma violaceumm, X. sagittifolium, Apoballis mutata, Alocasia sp., A. longiloba and A. Macrorrhizos. Group III are 9 species of geophytes grouping at 82% coefficient, namely Spathiphyllum commutatum, Schismatoglottis inculta, S. lancifolia, S. wallichii, S. asperata, S. cadieri, S. calyptrata and S. calyptrata ssp flagelliforme and Aglaonema nitidum.
The Abundance and Diversity of Plankton in the Waters of the Tasilaha Lagoon Helpano Village, South Banawa, Donggala Regency Moh. Sabran; Syech Zainal; Aan Febriawan
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): October - December
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.v22i4.4139

Abstract

Plankton are organisms (animals and plants) that live floating or floating in the water column, their movement is influenced by currents. The role of plankton is very important in aquatic ecosystems, especially phytoplankton which are primary producers. This research is a quantitative descriptive study using purposive sampling method with a field and laboratory survey approach. The purpose of the study was to describe the abundance and diversity of plankton in the waters of the Tasilaha Lagoon. This research was conducted in June – July 2022. The results of the study were 31 types of plankton consisting of 17 types of phytoplankton and 14 types of zooplankton. The abundance of phytoplankton species obtained ranged from 366–5,597 cells/liter and zooplankton 623–5,515 individuals/liter. The value of the phytoplankton diversity index was 2.44–2.55 and the zooplankton ranged from 2.19–2.31.

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