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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 2,562 Documents
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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.
Analysis of the Suitability and Supporting Capacity of Mangrove Ecotourism in Yenelo Lake, Sagea Village, North Weda District, Central Halmahera Regency M. Abjan Fabanjo; Nursanti Abdullah
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.4109

Abstract

The mangrove area around Lake Yonelo is a unique and potential area, but the area tends to be threatened by increasing mining activities in the area. Management of the mangrove area around Lake Yenelo as an ecotourism area is an alternative form as an innovative effort to maintain environmental functions as a provider of environmental services in order to remain sustainable. The purpose of this study was to determine the suitability of the tourist area and the carrying capacity of the area as well as the types of activities in the mangrove ecotourism area. The method used is a survey method, using the analysis of the tourism suitability index (IKW) and the carrying capacity of the area (DDK). The results of the analysis of the suitability index of the Yenelo Lake area are classified as very suitable for developing mangrove ecotourism activities, while the results of the analysis of the carrying capacity of the area are 412 people/day with the carrying capacity of the utilization of 42 people/day with the types of activities, namely tracking, picnicking, sitting relaxed, photography and education in along 844 m of mangrove area. The contribution of this type of activity will provide new job opportunities for the community around the mine which will certainly affect the welfare level of the community around the mine in the North Weda District.
Anti-Ovipositor Power of Jayanti Plant (Sesbania sesban) for Integrated Control of Cabbage Pest (Plutella xylostella) Suripto Suripto; Hilman Ahyadi; Rachmawati Noviana Rehayu
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.4120

Abstract

Cabbage harvest failure is often caused by failure to control cabbage pests. Cabbage pest control by eradicating Plutella xylostella larvae is considered less effective because the cabbage plant has been damaged due to infection with P. xylostella eggs and larvae. Thus, the control target needs to be shifted to prevent P. xylostella amago from laying eggs (ova-positioning) on cabbage plants. This study aims to determine the anti-ovipositor power of Sesbania sesban leaf extract against P. xylostella. The leaves of S. sesban were air-dried and then ground. The dry powder (simplicia) of S. sesban leaves was extracted with water as the sole solvent. The water-extract of S. sesban leaves was tested for anti-ovipositor against P. xylostella in situ on cabbage plants according to a completely randomized block design. Experimental groups were made according to variations in extract concentration. Complete randomization was carried out on experimental units in each group according to the variation in the length of exposure to the extract before access to the ovipositor was opened (Cages were opened after 1,2,3,4,5 and 6 days from the time of extract spraying). Each experimental unit consisted of 4 cabbage plants as replicates. The treatment was given by spraying a solution of S. sesban leaf extract with a concentration according to the group evenly on the entire leaf surface of each cabbage plant. The observed research variable was the number of P. xylostella eggs per cabbage plant after the cage of cabbage plant unit was opened. The results showed that the leaf extract of S. sesban could inhibit P. xylostella as an ovipositor to lay its eggs on cabbage plants effectively for up to three days. With concentrations of 1.83 to 2.14 ppm, the aqueous extract of S. sesban leaves did not inhibit P. xylostella egg laying, but with concentrations of 478.63 to 1283.88 ppm it could inhibit 50 to 100%.
Study of Morphological and Morphometric Characteristics of Worker Bees Tetragonula clypearis in North Lombok Regency, West Nusa Tenggara Province, Indonesia Erwan Erwan; Munaris Munaris; Muhammad Muhsinin
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.4132

Abstract

This study aimed to describe the morphometric characteristics of the worker bee Tetragonula clypearis in Salut Village, District Kayangan, North Lombok Regency. The research material used was worker bee Tetragonula clypearis taken from 40 stup in two livestock groups, namely 20 stup in the Harapan Keluarga group and 20 stup in the Tunas Muda group in Salut Village, Kayangan District, North Lombok Regency. Each stup took three samples of worker bees for morphometric analysis (n=120). Morphological characters were observed under a stereo microscope connected to an Optilab camera. The character of T. clypearis is the thorax is black and hairy, and there are six hair bands on the mesoscutum and dark brown tibia. Metasoma has a variety of colours, ranging from pale yellow with black stripes, yellow and black, and pale yellow. The morphometric measurements included body length, head width, wing length, genna width, second flagellomere diameter, and body weight. The results showed that the seven morphometric measurement variables of the worker bee Tetragonula clypearis did not show significant differences (P>0.05) in the two cultivation groups. The value of the diversity coefficient <15% indicates that the morphometrics of the worker bee Tetragonula clypearis is uniform in both cultivation groups in Salut Village, District, Kayangan, North Lombok Regency.
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.
Diversity of Soil Fauna in the Sesaot Nature Tourism Forest, West Lombok Mohammad Liwa Ilhamdi; Agil Al Idrus; Muhamad Syazali
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.4142

Abstract

The Sesaot Nature Tourism Forest Area is a tourist area and an area that is used for the production of several plantation commodities, along with increasing human activities in the Sesaot Nature Tourism Forest area, it raises questions related to the state of its ecosystem, one aspect that reflects the state of the ecosystem, namely the diversity of soil fauna. The sample locations are divided into three paths based on the characteristics of the ecosystem, namely the waterway which is niche points located along the river flow, the middle lane in the form of a path around a forest area filled with large tree stands, and the edge lane which is a path located in the middle of the river around residential areas and rice fields. The purpose of this study was to determine the index of diversity, evenness of species, and species richness of soil fauna in the Sesaot Nature Tourism Forest. Sampling of soil fauna using the pitt fall trap method is placed along 3 predetermined paths. The results showed that in the Sesaot Nature Tourism Forest, there were at least 30 types of soil fauna dominated by the Formicidae family. The highest soil fauna diversity index was found in the waterway with 2.24, followed by the edge lane at 2.22, and the middle lane at 1.13. The evenness value of soil surface fauna species in the Sesaot Nature Tourism Forest in the waterway is 0.66, followed by 0.65 in the edge lane, and 0.33 in the waterway. The highest value of species richness (Margalef index) was found in the waterway with 3.26, followed by the edge and middle lane with 2.69.
Etnobotany of Traditional Medicine Plants in the Wawo District, Bima Regency in 2022 Sri Wahyuningsih; Abdul Syukur; Khairuddin Khairuddin
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.v22i4.4144

Abstract

Ethnobotany is the study of the traditional use of various kinds of plants by rural communities. Ethnobotany has a very important role to understand the relationship between people and plants. This study aims to determine the number of species medicinal plants and how to use traditional medicinal plants in Wawo distrrict, Bima Regency. This research is descriptive exploratory. Data collection techniques by means of interviews, observation, documentation, and experience. Determining the initial information in this study was carried out by purposive sampling method continued with the snowball sampling method until the data was saturated. Data analysis uses qualitative and quantitative analysis. We documented 83 species belonging to 37 families. The most abundant families are Zingiberaceae (13 species), and Fabaceae (6 species). There are 8 ways to use it, namely that is, by drinking without boiling (18%), boiled before drinking (40%), smeared (20%), dripped (5%), rubbed (8%), blown (3%), gargle (3%), sprayed (3%), the method of utilizing medicinal plants which is most often used by the people of In the Wawo district by boiling before drinking with the highest percentage, which is 40%. The percentages of medicinal plant diversity based on habitus were 55% trees, 6% lianas, 12% small trees, and 25% herbs. There is a need for written documentation regarding knowledge about the use of medicinal plants in In the Wawo Disrict and can be passed on to the younger generation, as well as the need for bioactive research so that traditional use by the community can be scientifically proven.

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