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Kota mataram,
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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 2,520 Documents
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Behavior Patterns of Betch Fish (Betta sp.) Towards Different Lamp Light Colors Prilda Rizky Hasibuan; Sri Jayanthi; Siti Rahmawati Sitorus; Rizka Fadillah Br Siregar; Agnes Lidya Syahtari Purba; Silvia Wardania; Ella Fizh Sahrin; Sahna Maulana Sitakar; Gita Prilien Aibekob; Mely Supiani; Dwi Putri Oktaviani Sinabariba
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6258

Abstract

Betta fish (Betta sp.) is a type of ornamental fish that has unique characteristics compared to other ornamental fish. This research was carried out in November 2023 with the aim of finding out the behavioral patterns of Betta fish when exposed to different types of light. This research used a quantitative method with a (RAL). The results of the research showed that there were changes in behavior in Betta fish (Betta sp.) that had been given different colored lights. The reason why fish are attracted to light is, among other things, because fish have positive phototaxis properties which cause fish to be stimulated and attracted to gather at light sources. In this research, it can be seen that the movement of betta fish moves away from the light source, because the light coming out of the lamp will become hot if it is turned on for too long. If this goes on for a long time, it is feared that the fish will become bored and also experience stress.
MicroEssensial Content Fe, Zn and Iod of Sipunculus nudus from Samboang Beach, Bulukumba District Lucky Hartanti; Warsidah; Rita Kurnia Apindiati
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.6264

Abstract

Micro minerals are a number of minerals that the body needs to carry out its functions normally, even if only in very small amounts. The high need for minerals to improve health, especially in handling stunting in children during the growth and development period, encourages the search for food sources that are cheap and easy to consume. Sipunculus nudus is a marine animal that lives immersed in sand where the waters are relatively fertile, and is often found in the East of South Sulawesi region. The aim of this research is to determine the micro mineral content of iron (Fe), zinc (Zn) and iodine (I) in the meat of S. nudus in Samboang waters. Fe and Zn were determined using an atomic absorption spectrophotometer, while iodine was determined using an HPLC instrument. The results showed that the S. nudus sample contained Fe and Zn of 221.43 ppm and 21 ppm respectively, and the mineral Iodine (I) was 14.11 ppm.
Growth Respons of Javanese Fat Tail Sheep (DEG) on Probiotic Supplementation in Diet with Different Nitrogen Source Rina Andriati; Lalu Wirapribadi; Rr. Agustien Suhardiani; Tahyah Hidjaz
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6285

Abstract

The growth performance of ruminant animals depend mainly on the quantity and quality of the feed provided. In feedlot systems, the ruminant diet consists of roughages, which are in most cases preserved as native grass or hay, and concentrate feeds as Nitrogen sources. To meet their nutritional requirements and achieve the expected growth performance, these animals must be provided with adequately balanced diets. The aim of present study was to investigate the effect of probiotic supplementation in diet with different nitrogen sources on growth performance of Javanese Fat Tail Lambs. The study was conducted experimently using 48 male lambs 6-7 month of age and average body weight 18,7±2,6 kg. The probiotic tested was EM-4, a probiotic containing Lactobacillus sp, Streptomices sp. and Sacharomyces cerevisiae, with tested levels were: zero (R0, control), 0.5 ml (R1), 1.0 ml (R2), and 1.5 ml (R3) per head per day. Two types of diets were prepared, each composed of 70% native grass and 30% concentrate with different nitrogen source, both formulated to be isoprotein and isoenergy. The experimental lambs were divided into 8 groups of 6 lambs each group, each placed randomly in 48 similar individual cages. Experimental diets were given twice a day in equal portions at 08.30 in the morning and at 16.30 in the afternoon. The amount of remaining feed was measured every day at 06.00 am. Each lamb was weighed once a week for a 120-day experimental period. Data were analyzed using ANOVA according to Randomized Block Design, and further tested by the Least Significant Difference Test. The results showed that probiotic supplementation in diet had no effect (P>0.05) on Dry Matter Intake (DMI), but could increase (P<0.05) Daily Weight Gain (PBBH), Growth Rate (LP), and reduced the Feed Conversion Rate (FCR), both in the lambs fed diet with nitrogen source from Turi (Sesbania grandiflora) leaf meal (R1) and Tofu Dreg (R2). The DEG fed R1 showed a 7.7% higher PBBH than those of fed R2. The probiotic supplementation on R1 and R2 gave the optimum effect on PBBH and FCR at the supplementation level of 1.5 ml/head/day.
Effect of Litter Size on Milk Production of Does and Pre-weaning Growth of Kids in Crosses of Boer and Peranakan Ettawa (PE) Goats Happy Poerwoto; Lalu Wirapribadi; Mohammad Ashari; Rr. Agustien Suhardiani
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6286

Abstract

Boerawa goats (Boer x PE Crossbred) which currently have been spread and farmed in various region of Indonesia need to be monitored their productivity and development continously. The aim of this experiment was to investigating the Doe's milk production and pre-weaning growth of the Boer x PE crossbred kids on different litter sizes. The experiment was conducted at MBB Goat Breeding Farm in Klebuh Village, Praya Tengah District, Central Lombok Regency. A total of 62 PE goat doe’s consisting of 15 single kidding and 47 twins kidding doe’s, each with their crossbred Boer x PE kids, were observed intensively by measuring their performance directly. Each doe’s was fed 250 g of concentrate mix (75%) and soybean meal (25%) and Ca & P minerals (0.5%) with chopped Elephant Grass basalt diet fed ad libitum. The results showed that the milk production of single kidding doe’s was lower than that of twin kidding doe’s (972 vs 814 ml/head/day). Birth weight and weaning weight of single kid were much higher (P<0.05) than twins. Birth weight (3.18 vs 2.45 kg), weaning weight (11.56 vs 8.33 kg), and daily weight gain (136.32 vs 88.63 kg), for (single kid vs. twin) respectively. The use of milk and the loss of body weight of the doe’s for the formation of every 1 g of body weight in single kid is relatively higher than those of twins.
Diversity of Orchids (Orchidaceae) in Bonjol Subdistrict, West Sumatra Yulia Indriani; Elfrida; Ekariana S Pandia
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6290

Abstract

Bonjol District, West Sumatra has a very high diversity of flora, one of the flora found in Bonjol District is orchids (Orchidaceae). However, there is no data that explains the diversity of orchid plants in Bonjol District, so researchers are interested in using this as research. This research aims to find out what types of orchids are found in Bonjol District, the diversity index of orchid plants (Orchidaceae) and the dominance index of the most dominant orchid plants in Bonjol District, West Sumatra. The research was carried out using an exploratory method with direct observation of orchid plants in the field. The sampling method used was purposive sampling, namely taking samples with certain considerations. Sampling was carried out at 2 stations, namely residential areas and forests. Data analysis used the Shannon-Wiener diversity index. The research results showed that the diversity of orchid species (Orchidaceae) in Bonjol District, West Sumatra was classified as moderate, with a total Shannon-Wiener diversity index H' = 1.4117. In Bonjol District, West Sumatra, there are 31 types of orchids from 17 genera, the most frequently found species are Bulbophyllum gibbosum with 35 individuals, while the species found least frequently are Nervelia crociformis and Eria discolor, each with 2 individuals. Then, in the results of calculating the dominance index value for orchids (Orchidaceae) in Bonjol District, West Sumatra, the result was D= 0.044, which means that no species dominates.
Effectiveness of Chicken Manure Flower Extract (Tagetes ercta L.) Against Mortality and Antifeedant in Chili Aphid Pests Myzus persicae sulz Hotni Doani Purba; Helen J. Lawalata; Utari Satiman; Aser Yalindua; Christny F. E. Rompas
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i2.6291

Abstract

This research was motivated by the chicken dung flower plant (Tagetes erecta L.) which is one of the plants that is often found in several areas in North Sulawesi, containing active chemical compounds such as alkaloids, terpenoids, saponins, tannins and flavonoids which can improve health. improve health. improve health. improve health. improve health. improve health. used as a vegetable protector. This study aims to determine the effectiveness of chicken manure flower extract on the mortality and antifeedant effect of chili aphids Myzus persicae sulz. This examination utilized an exploratory technique utilizing the leaf separate strategy utilizing a Totally Randomized Plan (CRD) design comprising of 4 treatments and 4 replications. Each treatment was given chicken manure flower extract with respective concentrations, namely P0 (0%), P1 (5%), P2 (10%), and P3 (15%). The results showed that the administration of chicken manure flower extract had a significant effect on the death of the chili aphid Myzus persicae sulz. The higher the extract from chicken manure flowers the higher the death rate of chili aphids Myzus persicae sulz and chicken manure flowers have an antifeedant effect at a concentration of 15%. So it can be concluded that giving chicken manure flower extract is effective in increasing the mortality of Myzus persicae sulz at a concentration of 15%, namely an average of 4.75 birds and has an antifeedant effect at a concentration of 15.%, namely an average of 0.350 grams.
The Carbon Stocks Estimation on The Green Belt of Mataram City Aditya Riizki Kurniawan; Andi Chairil Ichsan; Markum
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6304

Abstract

Greenhouse Gases is a phenomenon where infrared radiation from sunlight is partly trapped in the atmosphere by greenhouse gases such as carbon dioxide (CO2), nitrogen oxide (N2O), and other gases, so that it can cause an increase in the temperature of the earth's surface. which results in climate change. This research aims to estimate carbon reserves in the Lingkar Selatan Green Belt of Mataram City. This research uses quantitative descriptive methods. The data collected is vegetation data. Vegetation data is collected by measuring the diameter and height of all vegetation or using the census method. Carbon stocks are estimated using allometric equations. The carbon reserves in the vegetation on the Lingkar Selatan Green Belt are 112.63 tons with 1432 individuals, with a stake level of 0.67 tons, a pole level of 13.75 tons, and a tree level of 98.13 tons. The highest amount of carbon reserves was found in the Canary (Canarium indicum) type at 33.91 ton and the lowest was in the matoa (Pometia pinnata) at 0.0012 ton.
Anatomical Identification of Leaf Stomatal Cell Types in The Family Euphorbiacea Miduk Leonardo Tambun; Sirem Suri; Lili Anna Sari Siregar; Siti Rhadiatun Mardiah; Tri Mustika Sarjani
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.6305

Abstract

Stomata, which are specialized cells on the surface of leaves, undergo modification to form structures containing two guard cells. These cells play a crucial role in facilitating the exchange of water vapor and gases between the plant's internal environment and the surrounding atmosphere. Typically located on plant parts exposed to air, such as leaves, stems, and rhizomes, stomata distribution varies among different species. While some plants exhibit stomata on both upper and lower leaf surfaces, others, like water lilies, exclusively feature stomata on the upper side.The objective of the current investigation was to analyze the stomatal anatomy of various plant species within the Euphorbiaceae family. Employing a qualitative descriptive approach, the study aimed to characterize and interpret the stomatal types present on the leaves of Euphorbiaceae plants in the Langsa City region. The findings revealed the presence of five Euphorbiaceae species in Langsa City, including Euphorbia mili (jade fern), Jatropha curcas (Jatropha curcas), Codiaeum variegatum 'Norma' (norma puring), Codiaeum variegatum Bi (jet puring), and Codiaeum finger (finger puring), all of which exhibited parasitic stomatal types.
Form and Type of Familum in The Tuber Family Adelia Putri; Aura Alfisyahrin; Diah Khairani; Lusia Selvina Br Hutabarat; Tri Mustika Sarjani
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): Special Issue
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.v23i2.6309

Abstract

Starch is a type of polysaccharide formed from the polymerization of glucose. Starch is also known as starch which is a widespread reserve polysaccharide in plants. Starch is also defined as a complex carbohydrate which is very important as a food source. The purpose of this research is to determine the shape and type of starch in the tuber family. This research was conducted using descriptive methods. The purpose of this study is to describe and describe the characteristics of the forms and types of starch.Based on the results of observations, it can be concluded that the starch in taro, cassava, porang and jicama tubers has a concentric type and has regular and irregular round shapes, while potato tubers have an eccentric type and are oval or oblong in shape.Potato tubers have the highest starch of the five tubers because potatoes have a dense starch structure and contain a lot of starch or starch.
Effect of Ecoenzyme Application for Cayenne Pepper Storage Ratna Dewi Eskundari; Suwaji Handaru Wardoyo; Alya Febrina Azzahra
Jurnal Biologi Tropis Vol. 23 No. 1 (2023): Special Issue
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.v23i1.6311

Abstract

Cayenne pepper is one of vegetables that is consumed almost every day by every household. However, cayenne pepper is characterized by not being long-lasting, so efforts are needed to extend the shelf life of cayenne peppers. Ecoenzyme is known as a multipurpose solution that has antimicrobial properties, so it is thought that ecoenzyme can be used as a natural preservative, for example to extend the shelf life cayenne pepper. This research aims to determine the effectiveness of ecoenzyme solutions in extending the shelf life of cayenne pepper. The research was carried out using fruit-derived ecoenzyme solution and vegetable-derived ecoenzyme solution, with treatment without dilution, ecoenzyme solutions with a concentration of 75%, and ecoenzyme solutions with a concentration of 50%. The results of the research showed that at full concentration without dilution, fruit-derived or vegetables-derived ecoenzyme solution can extend the shelf life of cayenne pepper to 10 days. It is hoped that these results will be useful for post-harvest purposes of cayenne pepper, both on a household and larger scale.

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