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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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Analysis of Water Quality in the Mandaong River for Development of Freshwater Fish Cultivation M. Abjan Fabanjo; Inayah Inayah
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.v21i3.2785

Abstract

The Mandaong River is a river flow that originates from the springs of Mount Sibela which until now has not been known with certainty the upstream point of the Mandaong River. This river flows through 3 (three) villages, namely Mandaong Village which is a downstream area, Makean Village Village and Papaloang Village which is an area of the Mandaong River body. Taking into account the position of the Mandaong River which flows from the mountains through plantations and settlements, it is estimated that it will receive some input from both natural processes and from the activities of the surrounding community such as bathing, washing, excavating sand, agriculture and settlements. Disposal of domestic waste, organic and inorganic waste so that there will be a decrease in the quality of river water in the form of physical, chemical and biological aspects. This study aims to determine the water quality of the Mandaong river based on physical, chemical and biological parameters and to determine the status of the water quality of the Mandaong river for the development of freshwater fish farming. The method of collecting water quality data on physical and chemical parameters was measured directly in the field and water samples were taken for further testing in the laboratory. For macroinvertebrate sampling by using nets /nets hand, the laying of nets is carried out systematically on the left, middle and right bank of the river at each predetermined station. Based on the results of measurements of the water temperature in the Mandaong river, it ranges from 25°C–27°C, Flow Speed ranges from 1.02–2.06, River depth ranges from 45–97 cm. and water pH ranged from 6.76-7.31, DO content ranged from 6.31-6.78, BOD content ranged from 0.10-5.63, nitrate content ranged from 0.361-2.068, phosphate content ranged from 4.506 –6.753, ammonia content in the range of 0.002, detergent content in the range of 50. Family Biotic Index (FBI) values ranged from 3.36-4.16. The FBI index value shows that the water quality of the Mandaong River is in the very good category with the level of pollution not polluted by organic matter at stations 1 and 2, while at station 3 it is in the very good category with a slightly polluted level of organic matter. Based on the results of research and discussion, it can be concluded from this study that the testing of physical, chemical and biological parameters in research on the Mandaong river shows that the level of river water pollution is included in the very good category. Therefore, the water quality of the Mandaong River can be developed for freshwater fish farming activities.
The Effect of Young Papaya Seed Extract on the Number of Male Mice Spermatozoes (Mus musculus) Tannya Efritzka Louise Calame; Kusmiyati Kusmiyati; I Wayan Merta
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.v21i3.2786

Abstract

Papaya fruit has many benefits, one of which is papaya seed can be used as antifertility drugs especially young papaya seeds. This is because young papaya seeds contain secondary metabolites of alkaloid glycosides and proteolytic enzymes such as papain which can interfere with spermatogenesis. This aims to determine the effect of young papaya seed extract of a mice number spermatozoa. Mice were randomly selected to represent 4 dose groups: control group (P0), extract 30mg/BW (PI), extract 60mg/BW (PII) and extract 90mg/BW (PIII). Each treatment group was carried out with six repetitions. The treatment was given intravenously by injecting it in the tail of the mice for 15 consecutive days. The observed spermatozoa quality variables is a number of spermatozoa. Data analysis used one way ANOVA significance test 5% (p<0,05) and continued  with the LSD (Least Significant Difference) 95% confidence. The result of the study on the quality of spermatozoa showed a significant effect at the doses of 60mg/BW (PII) and 90mg/BW (PIII). The higher dose of young papaya seed extract, it increasingly affects the number of sperm. The research concluded that the extract of young papaya seeds has a significant impact of a mice number spermatozoa (Mus musculus).
Effect of Addition of Fermented Liquid on Silage Quality of Turi Leaves (Sesbania grandiflora) and Cassava Tubers (Manihot esculenta) as Fish Feed Ingredients Daniel Wyclif Maatuil; Jacob L. A. Uktolseja; Desti Christian Cahyaningrum
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.v21i3.2945

Abstract

Utilization of Turi leaves (Sesbania grandiflora) and cassava tubers (Manihot esculenta) as a protein source to replace some fish meal can be done by silage of the two ingredients. This silage fermentation process requires adding inoculum from the fermented liquid to obtain good quality silage. This study aims to determine the effect of fermented liquid on the quality of silage made from Turi leaves and cassava tubers for fish feed ingredients through parameters of Titration End Point and pH levels. The research treatment was the addition of fermented liquid for four days with a sugar content of 1% (CT4-1%) in the treatment silage (S_CT4-1%), compared to the initial silage (SA) and the negative control silage (SKN). The results showed a significant (P<0.05) addition of CT4-1% fermented liquid, namely Titration End Point S_CT4-1% a significant increase of 281.9% from 18.33 mL in SA to 70.00 mL in treatment. The pH condition significantly decreased from 5.35 in SA to 4.17 in the treatment. Titration End Point on SKN only increased by 90.9% from 18.33 mL to 35.00 mL, with pH only dropping from 5.35 to 4.31. Study concuded that CT4-1% produced excellent quality silage of Turi leaves and cassava tubers based on TAT and pH levels. This quality can increase the chance of silage of Turi leaves and cassava tubers treated with CT4-1% as a partial substitute for fish meal in fish feed manufacture.
Histochemical Test of root, petiole and leaf of Kelembak (Rheum officinale Baill.) Nurhasanah Nurhasanah; Dyah Iriani
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.v21i3.2858

Abstract

Kelembak (Rheum officinale Baill.) is perennial shrub with pharmacological activities, and well-known as one of traditional herbal medicine used widely in the world. The phytochemical study, as well as histochemical test, is pivotal to determine the potency of herbs used for disease treatment. Based on its secondary metabolite content.  Histochemical test of R.officinale vegetative organs had not been reported. This study aims to determine the content of compounds in the vegetative organs of kelembak and provide information on the anatomical position of each compound in root, petiole and leaf. The preparation of histochemical test used freehand section method. Each sample was made in three replications for this test. A total of four secondary metabolites were examined in this study, i.e. alkaloid, tannin, lipid and flavonoid. The positive content of each compound was indicated by the coloration change. The specimens were then observed and photographed using light microscope.  The results showed that the root, petiole and leaf showed positive content of alkaloids, tannins, lipids and flavonoids. However, the anatomical position of each secondary metabolites are different among root, petiole and leaf. The results of this study provide the first information of histochemistry vegetative organs of Rheum officinale.
Production Performance of Peking Ducks with Feeding of Fermented Yeast Culture Pineapple Peel (Saccharomyces cereviceae) Bulkaini Bulkaini; Djoko Kisworo; Budi Indarsih; I K Sumadi
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.v21i3.3034

Abstract

Poultry production performance is reflected by body weight gain, ration conversion and carcass percentage. This study was conducted with the aim of knowing the optimum level of use of fermented pineapple peel in the ration on production performance and carcass percentage of male Peking ducks. The research material was male Peking duck aged 3 weeks with initial body weight of 343.90 ± 0.90 g. 240 male Peking ducks were placed randomly in battery cages based on a Completely Randomized Design with 6 treatments and 5 replications, namely P0=ration without fermented pineapple peel (FPP); P1=the ration contains 5% FPP; P2=ration contains 10% FPP; P3=the ration contains 15% FPP; P4= ration contains 20% FPP and P5=the ration contains 25% FPP.  Based on One way ANOVA analysis and Duncan's test, it was found that the use of fermented pineapple peel 10% significantly (P<0.05) increased the final body weight (1.693g/head), body weight gain (1.350 g/head), and carcass percentage (55.25%). From the results of the study, it can be concluded that the optimum level of use of fermented pineapple peel with yeast culture on body weight gain, slaughter weight, carcass weight and carcass percentage, respectively: 8.80%; 8.40%; 7.25% and 9.50%.
The Effect Hormone BAP (6-Benzyl Amino Purine) on the Growth of Potato Axillary Shoots (Solanum Tuberosum L.) in Vitro Dila Lailatul Arafah; Diana Hernawati; Egi Nuryadin
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.v21i3.2823

Abstract

Potatoes are one of the foodstuffs that contain lots of carbohydrates, minerals, and vitamins. To develop potato cultivation, superior varieties are needed that produce high yields, are resistant to pests, and have good tuber quality. The growth of potato plantlets in the in vitro subculture process is determined by many factors, one of which is the administration of growth regulators and the concentration of growth regulators. The type of media or nutrients used also affects the growth and development of the explants and seedlings produced. This study aims to trigger the growth of potato plantlets so that their growth is optimal. The method used is a true experimental quantitative method with a one-factor Completely Randomized Design (CRD) design, namely variations in BAP concentration consisting of 5 treatments with 5 replications. Data collection techniques through observation or observation. Parameters observed were number of shoots, number of leaves, number of roots, and plantlet height. The data analysis technique used is the one way ANOVA test and for the average difference between treatments, the HSD (Honestly Significant Difference) test at 5% level is used. Based on the results of the study, it was known that there was an effect of giving the hormone BAP (6-Benzyl Amino Purine) on the growth of potato axillary shoots (Solanum tuberosum L.) in vitro. The results showed that there was a significant effect on the number of shoots (P = 0.007) with an average of 1.64 pieces, the number of leaves (P = 0.002) with an average of 1.42 pieces, the number of roots (P = 0.000) with an average of 1. an average of 1.70 pieces, and plantlet height (P=0.000) with an average of 2.65 cm. It was concluded that treatment D (1.5 ppm BAP) was the best treatment in increasing the growth of potato plantlets.
Diversity of Soil Arthropods in Suranadi Nature Park, Lombok, and its role on science lesson in elementary and secondary school Mohammad Liwa Ilhamdi; Muhammad Syazali
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.v21i3.2990

Abstract

The absence of data related to Arthropoda classes other than the orders Lepidoptera and Odonata in Suranadi Nature Park raises the need for studies on these fauna. This study aims to analyze the soil arthropod community and its role in science lessons in primary and secondary schools. This descriptive research was carried out from May to December 2019. Samples were collected in three paths, namely the forest edge, the middle of the forest and the waterway using the pit fall trap method. The collected samples were identified to species taxon at the Biology Laboratory of the Faculty of Teacher Training and Education, Mataram University. To obtain data on species diversity, an analysis was carried out using the Shannon-Wiener equation. There are 33 species of soil arthropods found. They consist of 3 species from the order Blattodea, 2 species from the order Orthoptera, 4 species from Araneae, 11 species from the order Coleoptera, 10 species from the order Hymenoptera, 1 species each from the orders Homoptera, Tysanura and Diptera. The most abundant species is Platidema sp of the order Coleoptera. Based on the results of the analysis, the diversity index of soil Arthtopoda species in Suranadi Nature Park is 2,628. The qualitative analysis shows that there are 2 elementary and junior high school science topics that are suitable to be taught using the concept of soil arthropod diversity at Suranadi Nature Park.
The Utilization Of Beehive Wax a Combination of Nutmeg Extract (Myristica fragrans Houtt.) and Langsat (Lansium domesticum L.) as Aromatherapy and Mosquito Repellent Thesia Megi Kurniawati Rettob; Edieli Zebua; Ilham Saputra Butar-butar; Febiola Gabriela Tular; Yermia S. 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.v21i3.2938

Abstract

Mosquitoes often being the vector of some diseases, such as dengue hemorrhagic fever. To prevent these diseases vectored by mosquitoes, we could use mosquito repellent. But based on some research, these mosquito repellents on the market contain some dangerous chemicals, for example, Dichlorvos, Porpoxure, and synthetic pyrethroid. These kinds of chemicals can cause some side effects that are not good for health, ranging from headaches, nausea, to cancer and organ dysfunction. Therefore, it is necessary to have a mosquito repellent that is safer for health with minimal side effects. This research is an experimental type of research that aimed to determine the effectiveness of anti-mosquito in the form of an aromatherapy candle made of the beehive with the consistency of pala pulp extract and langsat seed extract. Pala pulp extract and langsat seed extract were obtained from the maceration method and then processed by Rotary Evaporator.  The concentrations used are Pala pulp extract: langsat seed extract. I: 0,5gr:0,25gr, II: 5gr:2,5gr. Both of the concentrations will be blend into 200gr of solid candle that will be melt. A test was made on some adult mosquitoes. Mosquitoes are being bred. The mosquitoes were placed on a cage that had been build by the researchers first. The measurement scale on this research is the mortality rate of the mosquitoes counted from the second we light up the anti-mosquito aromatherapy candle. There are two types of data analysis on this research, includes the anti-mosquito test and organoleptic test. The first concentration test's result shows that there is a very minimal effect on the mosquitoes. when the test was run, there were five adult mosquitoes inside the cage, an observation was done for 10 minutes counted from the time the candle was lit up. At the first 2 minutes 10 seconds, there is 1 mosquito that died, and the rest of the time for 10 minutes there was no other  mosquito died. The second concentration test's result shows a really big impact on the mortality rate of the mosquito. There were seven adult mosquitoes inside the cage when the test was run. And for 10 minutes, 6 mosquitos died. This means that the second concentration was the most effective amount of the concentration to apply on the candle. Hopefully, the result of this research could be useful for society in terms of environment-friendly anti- mosquito usage.
Diversity Insects of Spring in Mutis Timau Nature Reserve, TTS District, NTT Province Chatarina Gradict Semiun; Gaudensius U. U. Boli Duhan
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.v21i3.2942

Abstract

Insect diversity is believed to be used as a bio-indicator of spring quality, this study aimed at determining the spring insect diversity around the Mutis Timau Nature Reserve. The study was conducted from June to August 2019. Insects were caught by using the yellow pan trap and hand sorting. The diversity of spring insects was determined based on the Shannon-Wiener diversity index (H'), species richness index (R1), species dominance index (D), and evenness index (E). The results showed that 16 species belong to 11 families, and five orders of insects. The families included Gryllidae, Gryllotalpidae, Tetrigidae, Formicidae, Pompilidae, Apidae, Ochteridae, Veliidae, Hydrometridae, Nepidae, Coenagrionidae, Libellulidae, Carabidae, and Coccinellidae. The Shannon-Wiener species diversity index and the wealth index of the species of springs were classified as moderate (H '= 2.12 and R1 = 4.19). There was no type of spring insects dominated (D = 0.23). All springs insects were found to have almost the same level of evenness (E<1), with a value of 0.76. Abiotic factors such as pH and soil temperature were within the tolerance range of spring insects.  
Effects of Sargassum crassifolium Extract Formula as Biostimulant on Growth and Yield of Glycine max L. Merill Zozy Aneloi Noli; Muhammad Azwar
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.v21i3.2842

Abstract

The research about the Effect of Sargassum crassifolium Extract Formula as Biostimulant to Increase Growth and Yield of Glycine max L. Merill was conducted from February until June 2020 at the warehouse of Plant Physiology Laboratory, Department of Biology, Faculty of Mathematics and Natural Sciences, Andalas University, Padang. The research aims to evaluate the effectiveness of liquid and powder extract formula of S. crassifolium as biostimulant on the growth and yield of soybean (Glycine max L. Merill). The research was conducted by an experimental method arrange in a Completely Randomized Design (CRD). The experiment consisted of 3 treatments. Each treatment was laid out with nine replications. The treatments tested were control, liquid extract (0.4%), powder extract (1.6 g/L). The results showed that the application of liquid extract gave a higher tendency towards the improvement of the root system, fresh and dry weight, chlorophyll content, and 100 seeds weight of soybean plant. While the powder extracts shown the best result on the total seed weight. Both of extract formula had the potential to be used to increase growth and yield of soybean.

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