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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
 96   97   98   99   100 
Analysis of Local Community Ecological Knowledge on Mangrove Ecotourism Development in Talaga Yenelo, Sagea Village, North Weda District Central Halmahera District Fabanjo, M. Aban; Abdullah, Nursanti; Ahmad, M. Ali
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.v24i1.6388

Abstract

Local ecological knowledge is knowledge and beliefs that are largely derived from observations of the ecological processes of resources in the surrounding area and the various factors that influence them based on the logical interpretation of local communities. Local ecological knowledge has an important role in informing sound spatial, spatial and temporal management approaches for marine spatial planning. The aim of this research is to identify the ecological knowledge of local communities regarding the mangrove ecosystem and 2) Community perceptions regarding the management of mangrove ecotourism in Talaga Yenelo in Sagea Village and 3). The level of perception of local communities regarding Ecotourism activities. The method used in this research is determining the sample in this research using a purposive sampling method, namely respondents who participate are deliberately selected by researchers according to the criteria of research respondents. To determine people's knowledge and perceptions, it is based on a Likert scale assessment system and multiple linear regression analysis to see the influence of several independent variables on one dependent variable. The research results show that the people of Sagea and Kiya villages have better knowledge of the local ecology of mangrove forests, especially mangrove habitat, factors of mangrove damage and the impact of mangrove damage compared to the function of mangroves. with the level of utilization of the mangrove ecosystem in the villages of Sagea and Kiya varying greatly. While understanding of mangrove ecotourism activities is very minimal, they agree with the ecotourism activities carried out. Therefore, there is a need for follow-up action from the government regarding mangrove forest management based on the mangrove forest environment.
Application of Rice Straw Compost and NPK Fertilizer to Increase The Growth of Kale Land (Ipomoea reptans poir) Raksun, Ahmad; Merta, I Wayan; Mertha, Gde
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.v24i2.6391

Abstract

Kale land can grow well in various environmental conditions. Fertilization is one way that can be done to increase the growth of  Ipomoea reptans poir using both organic and inorganic fertilizers. Research on the application of rice straw compost and NPK fertilizer to increase the size of  stems and leaves of Ipomoea reptans poir has been completed in 2023. This research aims to analyze: (1) the effectiveness of using NPK fertilizer on the size of  stems and leaves of Ipomoea reptans poir, 2) the effectiveness of using rice straw compost on the size of  stems and leaves of Ipomoea reptans poir, (3) the effectiveness of the combination of using rice straw compost and NPK fertilizer on the size of stems and leaves of Ipomoea reptans poir. Two factorial design was applied in this research. The results were obtained: (1) the application of rice straw compost was significantly effective in increasing stem height, leaf length and leaf width but could not increase the rate of increase in the number of  kale land leaves, (2) NPK fertilizer treatment had a real effect on increasing the overall growth parameters observed, (3) ) the combined application of rice straw compost and NPK fertilizer did not have a significant effect on leaf width, number of leaves, leaf length and stem height of  kale land.
The Effect of Providing Different Natural Feeds on The Growth of Manfish (Pterophyllum scale) Oktavia, Suma Ardhanna Nova; Firmani, Ummul
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.v24i1.6402

Abstract

Decorative fish is a significant fishery product since it tends to be finished by exporters, one of the elaborate fish that adjusts to be sent out is manfish on the grounds that it has the excellence of variety and agile developments. The growth of manfish can be influenced by appropriate feed, so this study aims to find out what type of natural feed is suitable for the growth of manfish with artificial feed comparisons (pellets). The treatments used in this study were 100% artificial feed (petet) as control/P0, 100% Daphnia sp as 1/P1 treatment, 100% Tubifex as 2/P2 treatment, and 50% Daphnia sp and 50% Tubifex as 3/P3 treatment. The parameters observed during the study were absolute weight growth, absolute length growth, survival rate,  water quality, and feed conversion ratio. The results showed a treatment that used good natural feed in the long growth of manfish, namely P1 treatment of 100% Daphnia sp feed by showing a figure of 5.27±0.29 cm. The absolute weight growth parameters in good natural feed treatment are P1 treatment of 100% Daphnia sp with a figure of 3.20±0.34 g. The results of the study with feed conversion ratio parameters in natural feed treatment showed the results that P1 treatment experienced high fish appetite because feed needs during the study showed a figure of 11454.02 mg. The lowest survival rate was obtained in the control at 66.67% and the highest survival rate at P1 treatment at 91.67%. The measured water quality parameters are temperature, pH, salinity, and dissolved oxygen which each show numbers in the range of 27-17oC, 00/00, 7-8 and 4-5mg/L.
Isolation and Identification of Biosurfactant-Producing Bacteria in An-aerobic Palm Oil Waste Pools at PT. Aek Loba Plantation Sipahutar, Lara Santi Hemat; Rasyidah; Mayasari , Ulfayani
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.v24i1.6423

Abstract

Biosurfactant-producing bacteria are bacteria that have alternative energy sources, namely surfactants which contain hydrophilic and hydrophobic groups based on their molecular structure so that they can survive between different polar and hydrogen bonding fluids. Palm oil mill liquid waste is waste in the form of water or liquid, oil and organic solids produced from the processing of palm oil. The purpose of this study was to determine the genera of biosurfactant-producing bacteria found in palm oil wastewater in the an-aerobic pond of PT. Aek Loba plantation and to find out the bacterial species with the highest emulsification index. This study used descriptive methods and identification of bacteria through morphological characterization, gram staining tests and biochemical tests. Bacteria were isolated from palm oil wastewater by dilution method 10-4, 10-5 and 10-6. Bacterial emulsification index is calculated by emulsification test. In this study, 8 biosurfactant-producing bacterial isolates were found, consisting of 2 Proteus genus isolates, 2 Enterobacter genus isolates, 2 Bacillus genus bacterial isolates and 2 Pluralibacter genus isolates. The bacteria that had the highest emulsification index was Pluralibacter gergoviae with an emulsion index of 43% which was identified by molecular testing.
The Effect of The Number of Section on The Growth of Vanilly Plant Cuttings (Vanilla planivolia Andrews) Badaria, Badaria; Amane, Gusmin Syarif; Elsabet, Elsabet; Yanti, Yanti; Aba, La
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.v24i1.6424

Abstract

The vanilla plant (Vanilla planifolia Andrews) is one of a spice plants that has economic value and the global demand for vanilla continues to increase along with the development of industries that rely on vanilla raw materials. One of the factors that contributing to the vanilla low production is the limited availability of cuttings as a source of section. One effort required to increase vanilla plant production is by using good section as well as paying attention to the number of segments on vanilla plant cuttings. This research aims to determine the effect of the number of segments on the growth of vanilla plant cuttings (Vanilla planifolia Andrews). The experimental design used in this research was a Completely Randomized Design (CRD) which consisted of 5 treatments and 3 replications so that there were 15 treatment units, namely R1 = 1 segment, R2 = 2 segments, R3 = 3 segments, R4 = 4 segments, and R5 = 5 segments. The observational data from the treatment was processed statistically. If the results of the analysis have a real effect then a further test is carried out with BNJ at a real level of 5%. The parameters observed were shoot height (cm), number of leaves (strands), and shoot diameter (cm). The results of the research showed that the treatment of the number of cutting segments had a very significant effect on the growth parameters of shoot height, number of leaves and shoot diameter of vanilla plant seedlings with the best treatment obtained in the R4 treatment (4 segments).
Community of Plants for Traditional Medicine in Kerandangan Natural Tourism Park West Lombok Nanisfi, Maulidatin; 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.v24i1.6425

Abstract

The development of modern medicine, with its various advantages and disadvantages, has eroded people's knowledge about the use of traditional medicine. Thus, it is important to conduct research on the use of natural resources (plants) as traditional medicine by the community. This application used a qualitative method, with observation and interviews to obtain in-depth information about the behavior of the Kerandangan Hamlet Community in utilizing plants as traditional medicine. The results showed that the local community of Kerandangan still uses traditional medicine from surrounding plants that have been taught from generation to generation to cure various diseases. Various species, families, and parts of plants were used by the community of Kerandangan as traditional medicine. Finally, the level of diversity of medicinal plant species was found to in a moderate level.
Inventory of Orchid Species in Customary Forest Area of Cipta Karya Village, Sungai Betung District, Bengkayang Regency Putri Indahsari, Dwi; Linda, Riza; 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.v24i1.6429

Abstract

Orchids are one of the flowering plants that have many species and are widely distributed, as well as having different attractions and characteristics in each species and habitat. The aim of this research to inventory the types of orchids in Customary Forest Area of Cipta Karya Village, Bengkayang Regency. The research was conducted using the cruise method. The characteristics observed were the morphology of orchids such as roots, pseudobulbs, stems, leaves, and flowers. The inventory results found 13 species of orchids. Epiphytic orchids were found more commonly in this area, with a total of  9 species, while terrestrial orchids were found with 4 species. The epiphytic orchid species foundware composed of Appendicula sp., Bulbophyllum sp., Coelogyne speciosa, Cymbidium sp., Dendrobium crumenatum, Dendrobium anosmum, Luisia sp., Micropera pallida and Oberonia sp. The terrestrial orchid species found ware composed of Acanthephippium javanicum, Malaxis latifolia, Nephelaphyllum pulchrum, and Spathoglottis plicata.
Effects of Doses Goat Manure and NPK Fertilizer on Growth and Yield of Pakcoy Alvita, Alifah Manda; Fatmawaty, Andi Apriany; Muztahidin, Nur Iman; M., Kartina 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.v24i1.6440

Abstract

The research aimed to know influence giving doses of goat manure fertilizer and NPK 16:16:16 fertilizer on the growth and result of plant pakcoy. This research completed in the experiment land Faculty of Agriculture, University of Sultan Ageng Tirtayasa at Sindangsari village, Pabuaran district Serang regency Banten Province and Laboratory of Soil and Agroclimate Faculty of Agriculture, University of Sultan Ageng Tirtayasa. The research used a factorial Randomized Group Design consist two factors. The first factor was a dose of goat manure fertilizer (P) consists of four levels; 141 g/polybag, 212 g/polybag, and 283 g/polybag, and 354 g/polybag. The second factor was a NPK 16:16:16 fertilizer; 1.1 g/polybag, 2.1 g/polybag, 3.2 g/polybag, and 4.2 g/polybag. The results of research showed the giving goat manure fertilizer a dose of 354 g/polybag gave influence a real of the plant height parameter, number of leaves, root length, and fresh weight of plant. The results of research showed the giving NPK 16:16:16 fertilizer a dose of 3.2 g/polybag gave influence a real of all observation parameters.
Carcass Characteristics of Male Peking Ducks with Fermented Yeast (Saccharomyces cereviceae) Culture Pineapple Peel Feed Bulkaini , Bulkaini; Kisworo, Djoko; Wulandani, Baiq Rani Dewi; Fahrullah , Fahrullah; Sutaryono, Yusuf Ahkyar; Sumadi, I Ketut; Ariana, Tirta
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.v24i2.6446

Abstract

The male Peking duck is a type of meat duck that has great potential to be developed as a producer of carcasses and primal carcass cuts. The research was carried out with the aim of finding out the best level of addition of pineapple peel fermented yeast (Saccharomyces cereviceae) culture to the percentage of carcasses and carcass primal cuts of male Peking ducks. The material used in this research was 240 male Peking ducks with an initial weight of 343.90 ± 0.90 g. The ration used contains 16% crude protein, with a metabolic energy (ME) of 2.900 kcal/kg. The cage system used is a battery colony cage measuring 200 cm x 60 cm x 50 cm with 30 plots. Each plot contained eight male Peking ducks which were kept until 8 weeks of age. The research data were analyzed using One Way Anova based on a Completely Randomized Design with a unidirectional pattern and followed by the Duncan Multiple Range Test (DMRT) using the SPSS version 16 program. The research results showed that the treatment with the addition of 10% fermented pineapple peel in the ration (P2) could produce a male Peking duck carcass percentage of 55.52% higher than the P0 treatment (54.94%); P1 (54.11%); P3 (53.85%); P4 (53.61%) and P5 (52.07%), while in primal carcass cuts the highest percentage was found in the chest at 37.17%, followed by the back (22.67%), wings (13.96%), lower thighs (13.72%) and upper thighs (12.43%).  Conclusion: The addition of yeast (Saccharomyces cereviceae) culture fermented pineapple peel at a level of 10% in the ration can produce a higher percentage of carcasses and carcass primal cuts of male Peking ducks compared to other treatments.
Inventory of Macroscopic Fungi in Oil Palm Plantations in Pantok West Borneo Bonifasius, Bonifasius; Yeni, Laili Fitri; Fajri, Hayatul
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.v24i1.6449

Abstract

Fungi are one of the abundant biodiversity both in Indonesia and in the world, so there are still many species of fungi that have not been successfully identified or known for their benefits. The purpose of this study was to determine the species of macroscopic fungi that can be collected in oil palm plantations in Pantok, West Kalimantan. This study used a qualitative approach, mushroom sampling using the plot method with roaming techniques, all species of macroscopic fungi found in oil palm plantations were recorded morphological characteristics and position of discovery in the observation sheet, then measured environmental factors, and the mushrooms obtained were preserved. Sample identification was carried out by matching morphologies including cup type and edges, cup color, stalk color and surface, stalk mounting type on the cup, and substrate.  Using a mushroom identification book that refers to McKnight & McKnight (1987), Roberts & Shelley (2013), Moor and O'Sullivan (2014), and Laessoe (2013). The field data analysis used is descriptive analysis by describing the species of macroscopic fungi found in oil palm plantations. As for the data validity checking technique on the identification results using the website https://www.indexfungorum.org/ to see the validity of the scientific name of each fungus found. In this study there were 17 species of macroscopic fungi found, these fungi belonged to 1 phylum, namely the Basidiomycota phylum and consisted of 11 families, namely the Polyporaceae, Boletaceae, Entolomataceae, Ganodermataceae, Marasmiaceae, Omphalotaceae, Psathyrellaceae, Schizophyllaceae, Tricholomataceae, and Pluteaceae families. The environmental factors of this study were less favorable for fungal growth. From the results of this study it can be concluded that the diversity of fungi in oil palm plantations in Pantok, West Kalimantan is quite varied, this is influenced by environmental factors in the plantation.

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