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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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Morphometric Measurements of Several Body Parts of Laying Phase Arabian Chickens Mohammad Hasil Tamzil; Budi Indarsih; Syamsuhaidi Syamsuhaidi
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
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.v23i2.4913

Abstract

The objective of this research was to investigate the body measurements of female Arabian chickens during the laying phase. The study utilized a sample of 95 female Arabian chickens, aged 94 weeks, which were housed in battery cages and utilized for egg production. Direct measurements were taken on each chicken, with variables including body weight, head circumference, beak length, comb height, neck length, back length, wing length, chest width, chest depth, upper thigh length, lower thigh length, shank length, shank circumference, the distance between the pubis bones, the distance between the pubic bone and sternum, and the length of the phalanges. The results of the study indicated that the body weight and morphometric measurements of the Arabian chickens were consistent with prior research. Furthermore, the size of the chest, back, neck, and wings displayed a significant correlation with body weight. Therefore, these measurements can be used as indicative markers for predicting the body weight of Arabian chickens.
The Uniqueness of Endemic Animals Canary Crab (Birgus latro) as The Largest Crab Species in The Phylum Arthropoda Krisdarwindah Mardiana; Andara Frida Sheilaliany Daely; Wahyu Irawati
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5029

Abstract

Birgus latro or walnut crab is the largest land arthropod animal in the world, this crab has a unique and complex anatomy and body morphology that supports its survival. The research objective was to describe the anatomy, morphology, habitat, behavior, role, nutrition, reproductive system, immune system, gas exchange system, blood circulation, digestive system, excretory system, and Birgus latro osmoregulation. The research method used is literature review. This type of research is a form of qualitative descriptive research with review techniques from research journals on Birgus latro in Indonesia. This research was conducted by analyzing the results of research that had been published nationally and internationally relating to the life of Birgus latro. Walnut crabs live in areas that are damp and dark and avoid the sun to reduce the occurrence of evaporation on their bodies. Hard body parts such as shells, claws, and skin contain lots of calcium and chitin for self- defense and climbing coconut trees. The circulatory system of the walnut crab is open, this crab is also an osmoregulatory animal. The advice that the author can give for the preservation of walnut crabs is to provide outreach to the community regarding the importance of maintaining and preserving the existence of walnut crabs which are almost extinct. Establishing a walnut shell conservation center must also be carried out by the government to maintain the coconut crab population, as well as cultivate walnut crabs with the right procedure.
Diversity of Ectoparasites in Native Chicken (Gallus gallus Domesticus) in Mandau Duri District, Riau Santri Komala Asyfa; Radith Mahatma
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5033

Abstract

Native chicken (Gallus gallus domesticus) is a livestock animal that is widely kept by the community because it is very easy to maintain. Native chickens are widely used as a staple food that contains animal protein. This study aims to determine the prevalence and intensity of ectoparasite attacks and describe the types of ectoparasites found in native chickens in Mandau Duri District, Riau. The research was conducted in December 2022-February 2023. This study used random sampling method. Identification of ectoparasites was analyzed descriptively with book references, data analysis was calculated by the prevalence and intensity formulas. The results of the study found three species of ticks namely Menopon gallinae, Menacanthus stramineus and Menacanthus cornutus. The calculation results showed the highest prevalence and intensity in Menopon gallinae (32.5% and 3.62), the lowest prevalence and intensity in Menacanthus cornutus (25% and 3.1). The total prevalence of ectoparasites (87.5%) was categorized as common with moderate infection and the total intensity (9.72) was categorized as moderate.
Organoleptic Tests of The Addition of Telang Flower Extract (Clitoria ternatea) on Cow's Milk Yoghurt (Bos taurus) Production in Air Tawar Village, Langkat Yusraini Baubara; Arini Shinta Zahara; Silvia Wardania
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5056

Abstract

Yogurt is the oldest dairy product and is quite popular almost all over the world. Yogurt comes from pure cow's milk. Butterfly pea (Clitoria ternatea ) often referred to as butterfly pea or blue bean is a distinctive flower with a single petal in purple, blue, pink and white. Researchers wanted to see the effect of adding butterfly pea flower extract (Clitoria ternatea) to cow's milk yogurt (Bos taurus). This study employs a quantitative approach as its method. A quantitative approach was used to understand what the research subjects experienced from the color, taste, aroma and texture of the yogurt. The results of the study found that the addition of butterfly pea flower extract (Clitoria ternatea) at different levels had an effect on the organoleptic characteristics and texture of yogurt. The best practice produces organoleptic characteristics of taste (slightly sour), color (light blue), texture (slightly thick) and aroma (typical of yogurt).
Isolation of Phosphate Solubilizing Bacteria Around Bamboo (Bambusa vulgaris) Clumps Using Natural Media Trap Method Parisya Velayati Furqon; Bambang Fajar Suryadi; Ernin Hidayati
Jurnal Biologi Tropis Vol. 23 No. 4 (2023): October - December
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.v23i4.5074

Abstract

Bamboo plant is a potential source of plant growth promoting bacteria (PGPB). Phosphate solubilizing ability is an important characteristic of PGPB. This study aims to isolate phosphate solubilizing bacteria around the bamboo clumps using natural media. The bacteria around the bamboo clumps are trapped using natural media. The media consist of  70 gram cooked rice and 70 gram banana peel. The media were stored in plastic boxes with four types of treatments: 1) tightly closed, 2) covered with tissue, 3) covered with banana leaves, and 4) uncovered (open). Those plastic boxes are placed around the bamboo clump and left  for up to 5 days. The trapped phosphate solubilizing bacteria were isolated using Pikovskaya agar. A total of 17 isolates of phosphate solubilizing bacteria were successfully trapped, 8 isolates in cooked rice and 9 isolates in banana peel. The isolates showed a phosphate solubilization index, ranging from 0,2 to 1,40. The isolate NN01 has the highest ability to solubilize phosphate. This isolate was trapped in a cooked rice with an open plastic box condition. NN01 is a Gram positive rod-shaped bacterium. In this study it was revealed that the area of ​​the bamboo clumps is inhabited by various types of bacteria. The natural media of cooked rice and banana peels have a good ability to trap potential phosphate solubilizing bacteria around the bamboo clumps.
Variation of Coral Fish Communities in Coral Transplantation Sites, Kecinan Beach, Malaka Village, North Lombok Ridwan Ridwan; Nurliah Nurliah; Edwin Jefri
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5106

Abstract

Coral reefs are a very complex ecosystem with a fairly high diversity of biota, the existence of coral fish will be greatly affected by the condition of coral reefs, coral transplantation is an effort to restore coral reefs which aims to improve coral reef ecosystems. This study aims to look at the reef fish community in coral transplant media.  Data collection was carried out on January 15 – February 26, 2023. The method used in this study was a survey method. Data was collected using the Underwater Visual Census (UVC) technique and underwater cameras using SCUBA equipment. Data collection was carried out 4 times by looking at diversity, abundance, and categories based on how they eat. The results of this study obtained 6 families belonging to 13 genera and 15 species of reef fish with a total of 549 individuals. The categories of fish found consisted of 4 categories, namely 3 species of carnivores, 2 species of herbivores, 8 species of omnivores, and 2 species of corallivores. The diversity index value (H') was 1.662, the uniformity index (E) was 0.613, and the dominance index value (C) was 0.266.
The Potential Leaves of Porang (Amorphophallus muerelli blume) as Antioxidant and Antibacterial Escherichia coli and Salmonella typhi Susani Erikania; Vivi Rosalina
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.v22i1.5112

Abstract

Porang are known as plants that have high economic value. This plant was produced tubers which are widely used by industry as paper adhesives, cotton fabric paint, wool and the flour can be used as a substitute for agar. The Increased of this plant cultivation produced leaves which were not utilized. This study sought to determine whether porang leaves could be used as an antioxidant and antibacterial against Salmonella thypii and Escherichia coli.  Porang leaves extract was determine as antioxidant used DPPH method with quercetin as a standard and extract concentrations of 100 ppm, 200 ppm, 300 ppm, 400 ppm, 500 ppm. Antibacterial test using disc diffusion method with positive control of ciprofloxacin 5 μg/disk, negative control of DMSO 10% and extract concentration of 10%, 20%, 40%, 80% and 100%. The results of this study indicate that porang leaves have potential as antioxidants and antibacterials. Porang leaves extract had the greatest antibacterial activity against Salmonella thypii at concentration of 100% with inhibition zone of 11.10 mm in the strong category. While the Escherichia coli bacteria at concentration of 100% was 8.10 mm in the medium category. Porang leaf extract has weak antioxidant activity with an IC50 value of 466.07 ppm compared to the standard quercetin IC50 value of 11.23 ppm with a very good category.
Clipping Pada Aneurisma Intrakranial I Made Arya Yogiswara Mahayasa; Ilsa Hunaifi; Stephanie Elizabeth Gunawan; Setyawati Asih Putri
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5174

Abstract

An aneurysm is an abnormal formation of a blood vessel. Aneurysms are divided into 4 according to their shape (saccular, microaneurysm, giant, and fusiform). The formation of an aneurysm is caused by many factors (patient risk factors, hemodynamic stress, and involvement of cytokines and inflammatory mediators as well as macrophages, T cells, and mast cells). The diagnosis of an aneurysm is carried out with the help of tools such as MRA and CT angiography. In providing management of an unruptured aneurysm, consideration is needed by taking into account many factors, to facilitate this consideration, an assessment can be carried out first, it can be carried out using a scoring system called Unruptured Intracranial Aneurysm Treatment Score (UIATS). One of the time-proven aneurysm management is to perform aneurysm clipping. Clipping has advantages such as having a low recurrence rate and has disadvantages such as being invasive with the need to perform craniotomy. Complications that can arise from doing clipping in aneurysms such as infection, allergic reactions to anesthetic drugs, stroke, seizures, cerebral edema. Prognosis of management using the clipping method is good.
Community Structure and Ecological Conditions of Sea Cucumbers (Holothuroidea) in The Coastal Village of Pasokan, Walea Besar District, Central Sulawesi Ilyas H. Husain; Chairunnisah J. Lamangantjo
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5216

Abstract

Sea cucumber communities in the wild have different population sizes because there is a high species interaction within the community. Based on the biological organization that is used to express community structure, species diversity is unique to the community level. The objective is to ascertain the structure of sea cucumber communities along the coast of Pasok Village in the Walea Besar District of Central Sulawesi. Data are collected using transect lines, which are divided into three observation stations with ten sampling plots at each. The research method is descriptive-quantitative. The community structure can be known from the domination index (ID), diversity index (H'), and abundance index (J) used to process the data. The results of the study found the diversity index showed the numbers 1.092, 1.056 and 1.089. The dominance of Holothuria scraba species was 0.2 Indv/m2, Holothuria atra 0.14 Indv/m2, and Bohadscia marmorata 0.08 Indv/m2. The highest abundance value belonged to the species Holothuria atra 0.377 Indv/m2 and the lowest to Bohadscia marmorata 0.305 indv/m2. The results showed that the structure of the Holothuroidea community in Pasokan Pantai Village, Walea Besar District, Central Sulawesi, was in the present category.
Biodiversity of Migrant Birds in the Limboto Lake Region, Gorontalo Province Mustamin Ibrahim; Ilyas H. Husain; Tutin Pratiwi Langaru
Jurnal Biologi Tropis Vol. 23 No. 3 (2023): July - September
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.v23i3.5246

Abstract

The bird population in Indonesia is rich in diversity, this is based on the number of bird populations and environmental conditions that are still maintained so as to allow the birds to live. This study aims to describe the types of migratory birds in Lake Limboto. The method used in this study is the count point method and with 4 observation points for 7 days on different days. The starting point of the observations is carried out alternately for each station so that there are variations in the observation time at each station. Overall, the classification of migratory birds in the Limboto Lake area is classified as moderate with an index carbon index value of 1.79. Migratory birds found in the Lake Limboto area are 9 species of migratory birds belonging to 7 families with a total of 706 individuals. The highest index value H'= 1.63 is at station 1, the diversity index value is moderate and the lowest hidden index H'= 0 is at station 4, the index value is relatively low.

Page 72 of 257 | Total Record : 2562

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