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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 43 Documents
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Search results for , issue "Vol. 22 No. 1 (2022): January - March" : 43 Documents clear
Overview of The Ethnobotany on The Use of Plants as Potential Botanical Pesticides in Indonesia Whisnu Febry Afrianto; Rivandi Pranandita Putra; Yasri Syarifatul Aini
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3266

Abstract

Ethnobotany of Indonesian communities utilizes plants as botanical pesticides. Recently, there has been no comprehensive data and information related to the ethnobotany of plants as potential botanical pesticides on a nationwide scale. This paper aimed to depict an overview of ethnobotany as botanical pesticides in Indonesia. The comprehensive literature was collected from the 29 published articles and theses (doctoral, master's, and bachelor's degrees) in English and Bahasa Indonesia. After the data was validated, only 27 papers were related to the study topic. Most literature data is from the western part of Indonesia (Oriental Realm): Java (n=10); followed by Kalimantan (n=7), and Sumatra (n=4). The results showed that 149 plant species were used as botanical pesticides. It consists of 130 species as an insecticide, 12 as a fungicide, 8 as a bactericide, 8 as a molluscicide, 3 as a rodenticide, and 2 as a nematicide. These species were dominated by the Compositae family (14 species) and plant parts used from leaf parts (38.9%). However, 11 species have two to four functions: Archidendron pauciflorum, Areca catechu, Artocarpus heterophyllus, Caryota mitis, Cerbera manghas, Jatropha curcas, Melia azedarach, Morinda citrifolia, Pangium edule, Piper betle, and Piper ningrum. The data of ethnobotany can be used as database information for further research regarding the bioprospecting, formulation, efficacy, and conservation for sustainable use. Furthermore, the development of botanical pesticides is also an alternative to reduce synthetic/chemical pesticides to provide sustainable agriculture.
Analysis of Cyanide (CN) in Seagrass as a Bioindicator in Sekotong West Lombok Alwani Alwani; Agil Al Idrus; M. Yamin
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3271

Abstract

Seagrass is one of the aquatic plants that can be used as a bioindicator in the waters. This research aims to determine the morphological structure of seagrass as bioindicators and the amount of cyanide content in seagrass plants in the waters of Sekotong, West Lombok. This research was conducted in July - August 2021 at Pewaringan Beach, Sekotong, West Lombok. Determination of the sample point is done by purposive sampling. Data were collected using line transect method simple random sampling  at three points. Data analysis was carried out on seagrass plants with complete roots, stems, and leaves using a spectrophotometer at BLKPK NTB Province. The results showed that the characteristics of seagrass in the three research locations had a slightly muddy sandy substrate and slightly sandy muddy, an average leaf  length of 21.5 cm, an average leaf  width of 1.10 cm, an average stem length of 9.4 cm, diameter the average stem is 0.74 cm, the average root length is 7.29 and the average root diameter is 0.25 cm. The ANOVA test showed that the significant value was <0.05, so there was a significant difference in the morphology of the seagrass. The cyanide content in the waters of Pewaringan Beach was found to be on average 12,341 mg/kg or 0.495 mg/L. According to the Ministry of Health of the Republic of Indonesia No. 57 of 2016 the standard cyanide content in waters is 0.5 mg/L. So that the cyanide content in the waters of Pewaringan Beach is still within safe limits.
Difference Long Irradiation on The Growth Rate of Kappaphycus Alvarezii Lulu Lutfiati; Nunik Cokrowati; Fariq Azhar
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3292

Abstract

The study aimed to find out the long-standing difference in irradiation to the growth rate of Kappaphycus alvarezii in controlled containers. The method used is experimental. This study used a Complete Randomized Design (RAL) using four (4) treatments with 3 repeats, namely the treatment of P1 control (without irradiation), P2 (8 hours of irradiation), P3 (10-hour irradiation), P4 (12-hour irradiation). The data were analyzed using analysis of variance (ANOVA) at a rate of 5% with a confidence interval of 95% and continued with the Duncan test. In this study, the average results of absolute weight and the highest specific daily growth rate at P4 treatment of 25.67±1.53 gr, 3.30±0.06%, followed by P3 treatment 21±2 gr, 3.11±0.09%, P2 treatment 16±1 gr, 2.87±0.06%, and lowest P1 treatment 12.33±2.08 gr, 2.63±0.15%. The average value of light intensity in each treatment is P1 1053±41.00 lux, P2 1256±27.71 lux, P3 1479±0.58 lux, and P4 1668±34.64 lux. Water quality parameters during maintenance are in the normal limit range for seaweed maintenance. D treatment produces the highest growth value this is because the light is an energy source in the process of photosynthesis, in chlorophyll plants, photosynthesis is the main process determining the rate of growth. The quality and amount of light that enters affects the growth of seaweed. This research concluded that the maintenance of Kappaphycus alvarezii in controlled containers with different irradiation had a significant effect on growth. 12 hours irradiation (P4) gave the best growth with an absolute weight of 16.00 g, and a specific growth rate of 4.06% per day and gave the highest chlorophyll-a value of 2.72 mg/l. Meanwhile, the highest phycoerythrin value was found in (P1) without irradiation, which was 4.58 mg/l.
Utilization of Bioflok on Vaname Shrimp (litopenaeus vannamei) Cultivation Sudirto Malan; M. Abjan Fabanjo
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3330

Abstract

Vaname shrimp (Litopenaeus vannamei) cultivation is a promising business. Biofloc technology is an alternative to solve the problem of intensive aquaculture waste. Biofloc technology is able to provide additional protein feed for cultivated animals so that it can increase growth, besides that this technology is also effective in reducing inorganic nitrogen waste from leftover feed and manure. The purpose of this study was to determine the effect of different doses of biofloc on the growth rate of Vannamei Shrimp (Litopenaeus vannamei) and the effect of different doses of biofloc on the survival of Vannamei shrimp (Litopenaeus vannamei). The method used is the experimental method. Experiments carried out in this study were to determine the effect of biofloc with different doses on the growth rate of white shrimp. The study design was a completely randomized design with four treatments and three replications, treatment A (commercial feeding without the addition of biofloc), treatment B (giving commercial feed with the addition of 15 mL of biofloc) C (feeding commercially with the addition of 20 mL of biofloc). ) and D (addition of 20 mL of biofloc without commercial feeding). Vaname shrimp seed stocking density for each treatment amounted to 15 fish/container. The application of biofloc had a significant effect on the growth rate of daily specific average weight and the increase in length of Vaname shrimp seeds (p<0.05). The highest growth rates in weight and length were obtained in treatment B (commercial feeding with the addition of 10 mL of biofloc) of 0.55±0.02%/day and 3.7±0.01 cm, respectively. The addition of biofloc did not show any significant effect on the survival rate of Vaname shrimp fry (p>0.05).
The Effect of Chitosan Extracted from Green Mussel Shells Perna viridis on Sonneratia caseolaris Mangrove Syrup Preservation Muhammad Sholahuddin Al Ayyubi; Farikhah Farikhah; Nur Maulida Safitri
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3353

Abstract

Green mussels (Perna viridis) are one of the prospective aquatic resources that can be developed into a high-value commodity. Their shells, on the other hand, are rarely used and discarded; despite the fact that the shells are contain chitosan, which can be used as a food preservative.The purpose of this study is to examine the effect of chitosan administration from green mussel shells on Sonneratia caseolaris mangrove syrup at various concentrations. The experimental design used Completely Randomized Design (CRD) with 7 treatments within 3 replications. The study lasted 30 days in order tho find the best concentration of chitosan as a preservative. The McFarland method was used to evaluate the total dissolved density (Brix), the acidity (pH), the organoleptic study (aroma and color), and the bacterial density. The following treatments were used in this study: P1 to P5 (the addition of 0.1-0.5 ml of green mussel sheel chitosan solution); P6 (the negative control or without the addition of green mussel shell chitosan solution); and P7 (the positive control with the addition of 0.1 ml sodium benzoate (C7H5NaO2) as commercial preservative). The results showed that the average value of total dissolved density P1-P7 varied between 22-22.46 (Brix); acidity (pH) of P1-P7 ranged between 2-3,1; and the organoleptic test obtained points 5 (neutral) on the aroma and color test. As a conclusion, chitosan derived from green mussel shellsP. viridis is promising agent to be utilized as a preservative in S. caseolaris mangrove syrup.
The Identification of Soil Insect in The Karandangan Natural Tourism Forest Immy Suci Rohyani; Yunda Sulistiani
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3387

Abstract

Live insects rely on their habitat. Soil serves as a place to live, defense and a source of food for soil insects. Soil insects act as decomposers of organic materials and can be used as indicators of soil fertility and determinants of the stability of an ecosystem. This study aims to identify the types of insects found in the Kerandangan Nature Tourism Park Forest. This research is descriptive exploratory, sampling by purposive sampling with pitfall trap method. The results obtained 18 families 27 genera with the number of individuals as many as 520 individuals. Formicidae had the most number of individuals, namely 297 individuals. The genera with the highest number of individuals were Oechophylla (154), Streblognathus (89), Alphitobius (75), Gryllus (48), Macrotermes (48).
Bivalve Diversity Associated with Seagrasses in The Southern Coastal Waters of Central Lombok Lalu M. Faatih Basmalah; Abdul Syukur; Khairuddin Khairuddin
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3611

Abstract

Bivalves have an important role for the aquatic environment, namely as bioindicators of environmental health and water quality associated with seagrass. Bivalves are a class of molluscs associated with seagrass. This study aims to analyze the diversity of bivalves, and the relationship of environmental factors to the habitat of bivalves. The method used in this research is the line transect and quadratic method. The research approach was through observation, data collection for seagrass and bivalves using quadrant and transect methods. Data analysis used descriptive statistical analysis, ANOVA, and Pearson correlation. The results of the study found 16 species belonging to 7 families (Veneroidae, Arcidae, Cardidae, Tellinidae, Pinnadae and Pteriidae). The highest bivalves diversity index (H') was found at Kuta Mandalika Beach at 2.40 and the lowest at Gerupuk Beach at 2.02. The ANOVA results showed that the richness and abundance of seagrass-associated bivalves in the study area was determined by the environmental characteristics of the seagrass, especially the substrate. Second, seagrass can be a suitable substrate for bivalves to survive. The results of this study can be a reference for future researchers and a source of information for study purposes and for the development of science, especially in the field of invertebrate zoology.
Income and Efficiency Analysis of Maize Farming in Pringgabaya District East Lombok Regency Aeko Fria Utama FR; Dudi Septiadi; Muhammad Nursan
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3471

Abstract

East Lombok Regency is one of the maize development areas in NTB Province, however, maize productivity in that area is still relatively low due to the inefficient use of production inputs.The aims of this research are to; 1) analyze the income of corn farming in Pringgabaya District, East Lombok Regency; 2) analyze the factors that influence corn production in Pringgabaya District, East Lombok Regency; 3) analyze the level of economic efficiency in the use of production factors in corn farming in Pringgabaya District, East Lombok Regency. The research method used is descriptive method with a quantitative approach. The location of the research was carried out in Bagek Papan Village and Pringgabaya Village, Pringgabaya District, East Lombok Regency. Respondents in this study were farmers who cultivate corn in paddy fields as many as 30 respondent farmers. Data collection techniques used in this study are survey and interview techniques. Analysis of the data used in corn farming is farm income analysis, Cobb-Douglass production function analysis and efficiency analysis of production factors. The results showed that the income of farmers obtained from corn farming in Pringgabaya District, East Lombok Regency in 2021 was IDR 11,671,745 per arable area or IDR 15,559,705 per hectare. The factors that affect production that have a significant (significant) effect on production are land area at a significant level of 5% and NPK fertilizer at a significant level of 10%. Meanwhile, other variables, namely labor, seeds, urea, TSP and pesticides had no significant effect at the 5% and 10% levels. The production factors used in corn farming in Pringgabaya District, East Lombok Regency are not and have not been efficient to cultivate, this can be seen from the efficiency criteria that have not and none have achieved efficiency with a value of NPMx/Px = 1.
Application of Dry Probiotic Rabal (Yeast and Lactic Acid Bacteria) to Prevent Mas (Motile Aeromonas Septicemia) Disease in Catfish (Clarias sp.) Lukman Anugrah Agung; Imas Rohmawati; Eltis Panca Ningsih
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3524

Abstract

Catfish is one of the important fish commodities in Indonesia. There is some problem that becomes trouble in catfish culture, and the most trouble which cause losses in catfish culture is a disease, especially motile aeromonads septicemia (MAS). The purpose of the study was to analyze the effectiveness of giving dry rabal probiotics for the prevention of motile Aeromonas septicemia (MAS) in catfish (Clarias sp.). This experiment consisted of four treatments, namely catfish farming with the addition of dry rabal probiotics with concentrations of 0%, 5%, 10% and 15%. Catfish (6.03±0.38 g) were reared in a rearing tank with a volume (41x50x57 cm) with a density of 15 fish/aquarium for 50 days. Probiotic bacteria were given daily through feed, while the pathogenic bacteria A. hydrophila was infected on day 51. The results showed that the treatment of giving dry rabal probiotics through feed was effective in improving the immune, and increasing the survival of African catfish. The 10% (C) rabal probiotic treatment gave the best results with the highest survival rate of 75.56 ± 3.85%.
Stingless Bee Beekeeping as a Coping Strategy of Poor Households to Cope with Impacts of Disasters in Lombok Island, Indonesia Baiq Yulfia Elsadewi Yanuartati; Rinda Desan; Syarifuddin Syarifuddin; Ni Made Wirastika Sari; Muhammad Nursan
Jurnal Biologi Tropis Vol. 22 No. 1 (2022): January - March
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.v22i1.3531

Abstract

Communities in Lombok, especially North Lombok, have faced several disasters in recent years. The disasters include the Earthquake in 2018 and the Covid-19 pandemic that began in 2020, having a social and economic adverse impact. During these disasters, Trigona (stingless bee) was observed of being an income activity that was quickly recovered. This study looks at how Trigona helped beekeepers as a coping strategy after facing disasters. A qualitative study was conducted in North Lombok by conducting interviews using open questions with interview guidance. The interviews involved 35 beekeepers as participants and two key informants who were related to the activities of beekeepers in the society. The data was analyzed qualitatively and the findings were presented descriptively. This study found that Trigona was a household business that was able to help farmers coped with the impacts of disasters in North Lombok. The beekeeping could recover soon after the 2018 earthquakes, and was survived during pandemi because it was supported by five livelihood assets, which were available around them, easy to access, easy to use, and/or profitable. The assets included natural, human, social, physical, and financial assets for both beekeeping and livelihoods. Trigona beekeeping was also supported by institutions, both formal and informal.

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