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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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Metabolite profiling of agarwood (Gyrinops versteegii (Gilg.) Domke) leaves from difference growth locations using Thin Layer Chromatography Dwi Indriani Manurung; Lisna Hidayati; Nastiti Wijayanti; Tri Rini Nuringtyas
Jurnal Biologi Tropis Vol. 21 No. 2 (2021): Mei - Agustus
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.v21i2.2710

Abstract

Gyrinops versteegii (Gilg) Domke is an agarwood-producing plant originating from Eastern Indonesia. Leaves have antioxidant and anticancer activity due to their secondary metabolites. However, secondary metabolites are strongly influenced by the environment. This study aims to compare the terpenoid, phenolic, and flavonoid profiles of agarwood leaves grown in three locations, namely Bogor, Mataram, and Sambas using Thin Layer Chromatography (TLC), in order to obtain the most potential agarwood G. versteegii for further development as herbal medicine. Agarwood leaf powder was extracted using Soxhlet with 80% methanol as solvent, followed by liquid-liquid fractionation using chloroform and aquadest. The crude extract and the obtained fraction were subjected to metabolite profiling using TLC. Racing data factors from TLC were analyzed using hierarchical cluster analysis (HCA). The results showed that the Mataram sample produced higher yields for both extracts and fractions. TLC detected that the chloroform fraction contained more terpenoids, followed by phenolics and flavonoids, while the aqueous fraction contained the same number of positive bands for terpenoids and phenolics. In terms of origin, the Bogor sample showed six terpenoid positive bands higher than the other samples. A similar pattern was observed in the phenolics, while the flavonoids were the same for all samples. HCA resulted in Mataram being clustered separately from the Bogor and Sambas samples. Agarwood leaves from Mataram cannot be used to replace agarwood leaves from Bogor and Sambas as herbal ingredients.
Anti-mollusk Selectivity of Jayanti Plant (Sesbania sesban L., Merr) for the Control of Golden Snails, a Pest of Paddy Suripto Suripto; Gunawan, E.R.; Tresnani, G.; Jupri, A.
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2988

Abstract

Pest control is an essential aspect of rice cultivation. The golden snail (Pomacea speciosa) is one of the pests in rice fields. Damage to rice plants due to golden snail attacks has occurred in several provinces in Indonesia and several countries such as the Philippines, Thailand, Japan, and Malaysia. Various steps to control golden snails have been carried out, both mechanically, biologically, and chemically. However, each biological and mechanical control of golden snails is impractical to apply to very large rice fields. Meanwhile, the control of golden snails using synthetic molluscicides such as Brestan and Dimotrin is minimal because it can pollute the environment and cause the death of fish and the rice plant itself. To suppress the emergence of environmental pollution problems in overcoming this golden snail, natural molluscicides from plant materials are studied. Several plant species have been known to have anti-mollusk properties, one of which potentially is the Jayanti plant {Sesbania sesban (L.) Merr.}. This study aimed to evaluate the anti-mollusk performance of S. sesban for controlling golden snails, a pest of rice plants. The dry powder of S. sesban leaves was extracted in stages with a series of solvents of petroleum ether, chloroform, and ethanol to obtain an extract fraction that was selected as a mollucicide. Each extract fraction produced was tested for its toxicity to the gold snail, carp, rice germination, and rice plant growth. Data on the mortality of golden snail and carp fish, the percentage of germination inhibition, and rice growth were processed by probit analysis, respectively. The outputs of the analysis were LC50 of each extract fraction for golden snails and carp. The ratio of LC50 for golden snail with LC50 for carp indicated each extract fraction's physiological selectivity of anti-mollusk properties. The results showed that the highest lethal toxicity to gold snails was indicated by the extract fraction-ethanol, while to carp, it was indicated by the extract fraction-chloroform. Each extract fraction of S. sesban leaves did not inhibit the germination and growth of rice plants. The extract fraction- ethanol had the highest anti-mollusk selectivity compared to the other two fractions. Bioactive examination showed triterpene saponins from the extract of S. sesban leaves, with the highest relative levels in the ethanol fraction compared to the other two extract fractions.
Potential Carbon Content of Seagrass Species Diversity in Coastal Waters of Central Lombok Eva Rosdiana Sari; Abdul Syukur; Moh. Liwa Ilhamdi
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2773

Abstract

The marine environment has a significant role in maintaining the balance of gas exchange in the air, especially between oxygen and carbon dioxide. The potential of the marine environment for gas exchange is supported by the existence of marine ecosystems such as seagrass ecosystems. This is in accordance with the blue carbon concept which plays a role in environmental mitigation in reducing carbon through the coastal environment. Therefore, the purpose of this study was to assess the potential carbon content of the diversity of seagrass species at three locations of seagrass beds in the coastal waters of Central Lombok. The research method uses the line transect method and the ashing method. Seagrass vegetation data were analyzed using community structure analysis (diversity, uniformity and dominance). In addition, analysis of seagrass biomass and carbon content of seagrass was carried out. Furthermore, the regression analysis between seagrass density as the independent variable (X) and the carbon content of seagrass species as the dependent variable (Y). The results of the study found 8 species of seagrass found in the waters of Central Lombok with moderate diversity ranging from 1.59-1.77. The value of seagrass biomass in the waters of Central Lombok is dominated by the bottom substrate with a value of 3.38±1.58 gbk.m-2 while the upper substrate with a value of 1.69±0.98 gbk.m-2. The carbon value of seagrass in Central Lombok waters is dominated by the bottom of the substrate with a value of 1.39±0.22 tonC/Ha while the upper substrate is 0.72±0.13 tonC/Ha. Meanwhile, the results of the calculation of the Pearson's correlation (r) between the density of each type of seagrass as an independent variable (X) and the carbon content of each type of seagrass as the dependent variable (Y) shows the equation y = 10,608x + 70,155 with a correlation coefficient of 0.64 which belongs to the category medium and the coefficient of determination (r2) is 0.41. The conclusion of this study is that there is no significant relationship between the density of each type of seagrass and the carbon of each type of seagrass as indicated by the value of Fcount (4.17) < Ftable (6.60) with a value of =0.05 so that H0 is accepted and Ha is rejected.
Clove (Syzygium aromaticum) and brown algae (Sargassum sp.) Supplementation on Nutritional Content of Payangka Fish Nugget (Ophieleotris aporos (Bleeker) Wisda Nurjannah Abdullah; Revolson Alexius Mege; Arrijani Arrijani; Yermia Semuel Mokosuli
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2919

Abstract

Payangka fish (Ophieleotris aporos (Bleeker)) is one of the most common fish species in Lake Tondano, North Sulawesi. Due to the availability of this fish throughout the year, it is one of the types of fish consumed by many people. However, the economic value tends to be below. This study diversified payangka fish into nuggets with clove spice (Syzygium aromaticum) and brown seaweed (Sargassum sp) supplementation. The research conducted aims to obtain a proximate profile and fatty acid content of payangka nugget. The research method used is an experimental laboratory method. The study consisted of preparing payangka fish, making payangka nuggets supplemented with clove and seaweed extracts, proximate analysis by gravimetric method and analysis of fatty acid content by gas chromatography method. The results showed that the supplemented payangka nugget had 67% water content, 0.80% ash content, 0.05% total fat, and 10.50% crude fiber. Omega 3 content is 4.75%, while Omega 6 content is 34.16%. Payangka fish nuggets that were supplemented had a higher nutritional content than those without supplementation. Payangka fish nuggets supplemented with clove extract and brown seaweed contain good dietary content.
Habitat Characteristic of The Long-Tail Monkeys (Macaca fascicularis) at Natural Tourism Park (NTP) Pengsong Mount, West Lombok Ratu Mas Tara Indriani; M. Yamin; I Putu Artayasa
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2732

Abstract

Pengsong Mount Natural Tourism Park (NTP) is a habitat for long-tailed monkeys (Macaca fascicularis) in West Lombok. This study aims to determine the habitat characteristics of Macaca fascicularis in Pengsong Mount Natural Tourism Park (NTP), West Lombok. The object of this research is the long-tailed monkey (Macaca fascicularis) and all vegetation observed in the habitat of this species. Habitat characteristic data was collected using the plot method placed on an observation transect. Vegetation data taken includes vegetation at the level of seedlings, saplings, poles, and trees. Data on the physical conditions of the habitats collected included air temperature, air humidity, soil moisture, and soil pH. The data on the activity of the long-tailed monkeys studied were the daily activities of the monkeys in their habitat. The results showed that the habitat characteristics of long-tailed monkeys in Pengsong Mount Natural Tourism Park (NTP) is overgrown by 25 types of plants belonging to 15 families, has an average air temperature of 27.670C, an average air humidity of 650C, an average soil moisture of 55.67%, and the average pH of 5.2. The value of plant diversity in the Pengsong Mount Natural Tourism Park (NTP) area is 2.623 so that the value of plant diversity is classified as moderate. The value of plant evenness in the Pengsong Mount Natural Tourism Park (NTP) area is 0.815 so that the value of plant evenness is high.
Analysis of sea cucumber food habits (Holothuroidea) in Tanjung Gosale village Guraping subdistrict North Oba city Tidore Islands Yuyun Abubakar; Fajria Dewi Salim
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2977

Abstract

This study aims to find out the composition of sea cucumber types in Tanjung Gosale Guraping Village, find out the composition of sea cucumber food types in Tanjung Gosale Guraping Village and determine the food habits of sea cucumber types (main food, supplements, and incidental foods) contained in the stomach contents of sea cucumbers. The research procedure is carried out measurements of the length and weight of sea cucumbers using a measuring bar and analytical scales. Then the sea cucumber is dissected to be taken by the stomach, then analyzed the food contained in the stomach. Before the stomach is dissected first done weighing the weight of the stomach using analytical scales and measurements of the length of the stomach using the bar. The stomach of sea cucumbers that have been surgically then carried out observations of the contents of the stomach per individual in a microscope to find out the types of food organisms contained in the stomach of the sea cucumber. The results showed that the composite.
The Biological Parameters as an Indicators of Water Quality for a Tourism Area Spot in Jurang Sate Primary Canal Central of Lombok, Indonesia Baiq Dini Najia Dzurrahmi; Agil Al Idrus; Lalu Japa
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2900

Abstract

Jurang Sate primary canal is one of the the main irrigation canal in central Lombok which  supplies water from the main network, namely Jangkok, Sesaot, and Keru Feeder weir to several secondary canal and to irrigated tertiary plots. The local community use the Jurang Sate Primary canal in a variety of daily activities, and nowadays it is used as a means of water tourism. The purpose of this study was to determine the water quality for ectourism area spot of the Jurang Sate primary canal based on biological parameters, namely the total Coliform bacteria, and the diversity of phytoplankton species. Measurement of coliform bacteria parameters and phytoplankton diversity was carried out ex-situ. The results showed that the total Coliform bacteria count in each sample calculated with MPN index was in the range of 170-110000 MPN/100 ml. The phytoplankton identified in this study were 24 species, 15 orders, and 6 classes. Phytoplankton species diversity index value of 1.32 (medium category). The water of the primary channel of Jurang Sate was categorized in moderately polluted. The conclusion of this research is the water of the Jurang Sate primary canal is not ideal for water tourism activity.
Growth Performance Sargassum sp. Cultivated in Labuan Ijuk, Moyo Hilir Sumbawa Besar Regency, Nusa Tenggara Barat Nunik Cokrowati; Dewi Nur'aeni Setyowati; Salnida Yuniarti Lumbessy; Erwansyah Erwansyah
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2936

Abstract

Sargassum sp. is an alginate-producing brown alga that is used in the food, drug, and cosmetic industries. Sargassum sp. can be found in the waters of West Nusa Tenggara, namely on the islands of Lombok and Sumbawa. Sargassum sp. has not been cultivated in the waters of West Nusa Tenggaracurrently, Sargassum sp. is only exploited from nature. So it is necessary to cultivate efforts in the waters of West Nusa Tenggara. The waters of Labuan Ijuk, Sumbawa Besar Regency, have the potential as a location for the development of Sargassum sp. This study aimed to study the growth performance of Sargassum sp. with different initial seedling weights by using the bottom-off method. The research method used is the experimental method with the experimental design is a completely randomized design. The treatment in this study consisted of five treatments with four replications. Treatment A with 50 gr seed weight, B 75 gr seed weight, C 100 gr seedling weight, D 125 gr seedling weight, and E 150 gr seedling weight. Data analysis using ANOVA and 5% BNJ follow-up test. The results showed that the highest absolute weight was obtained in treatment E, which was 39.75 g, as well as the highest specific weight was obtained in treatment E, which was 36.81%. The lowest absolute weight was obtained in treatment C, 24.25 g, with the lowest specific weight also being 26.47%. This research concludes the optimum growth of Sargassum sp. obtained in cultivation using an initial seed weight of 150 gs.      
Characteristics of Host Trees as Habitat for Ephiphytic Orchids in the Cibereum waterfall Path, Mount Gede Pangrango, West Java Bela Prapitasari; Ardyan Pramudya Kurniawan
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2857

Abstract

An epiphytic orchid is one type of orchid that has the characteristics of habitat attached to the host tree. Mount Gede Pangrango, especially in the Cibereum waterfall, Selabintana, is a tropical forest area with many large host trees with a lush canopy, causing the epiphytic orchid species to form be abundant in the area. This study aims to determine the type and characteristics of the host tree used as a habitat for epiphytic orchids in the Cibereum waterfall path. The research method is to make ten plots on the right and left sides of the path, with each plot measuring 500x5 m and the distance between plots is 100 m. The results showed that on the Cibereum waterfall path, 33 species of host trees were found, consisting of 20 families. At the same time, the types of orchids found were 31 species from 12 genera. Almost all of the orchid hosts are trees, except for Brassaiopsis glomerulata are shrubs and Cyathea sp are poles. The characteristics of host trees as habitat for epiphytic orchids are: 4-51 m tall, trunk diameter 7-89 cm, canopy width 0-20 m, bark thickness 0-1.2 cm, bark texture rough to medium, generally colored brown, has no sap except for Ficus variegata, the surface of the trunk contains moss, and the epiphytic orchid growth zone on the host tree is mostly found in zones III and IV.
Identification of Pests and Diseases on Anthurium Plants (Anthurium andraeanum) in Sewu Kembang Tourism Village, Karanganyar Nur Rokhimah Hanik; Rohmad Faoji
Jurnal Biologi Tropis Vol. 21 No. 3 (2021): September - 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.v21i3.2973

Abstract

Anthurium ornamental plants are currently very popular among ornamental plant lovers, both from the charm of the type and color and the high price. Although pests and diseases in anthurium are not very disturbing, if left unchecked it will greatly interfere with the beauty, inhibit growth and be detrimental to collectors and sellers/entrepreneurs of these ornamental plants. The purpose of this study was to determine the types of pests and diseases that attack anthurium plants. This research was carried out in the Sewu Kembang Nglurah Tourism Village, Tawangmangu Regency, Karanganyar Regency, for 30 days from Saturday, September 4 to October 3, 2021. This study used 20 samples of Anthurium plants. The tools used were cellphone cameras and stationery. The variables that will be observed are pests and diseases that attack Anthurium. This research used observation and interview methode, the data obtained were analyzed by qualitative descriptive. The results of this study found several pests and diseases on anthurium plants that caused the plant leaves and flowers to have holes, shriveled, yellowed spots, slimy, and caused stunted growth. The pests found were caterpillars and snails, while the diseases included fungus, chlorisis, leaf rust, anthracnose, curly leaves, and burnt leaves.

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