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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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Identification of Morphology and Morphometry of Fresh Water Fish Cultivated in Meurandeh Teungoh Village, Langsa City M. Ali Akbar; Khairunnisa; Arini Shinta Zahara; Mardiah; Muliani Tiana Sari; Nurul Adha; Setyoko
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.v23i2.4629

Abstract

Aquaculture is a fishery activity that produces fish with human intervention to gain profit. Freshwater fish is one of the fishery cultivation commodities that have economic value. Langsa City is one of the cities that has developed freshwater aquaculture. The village in Langsa city that has tried to cultivate freshwater fish is the village of Meurandeh Teungoh. This activity aims to identify the morphology and morphometry of freshwater fish species located in Meurandeh Teungoh Village, Langsa Lama District, Langsa City, Langsa District, Aceh. The methods used in this research are quantitative. Based on the research results, it was found that there were 8 types of freshwater fish consisting of the claridae, pangasidae, anabantidae, cyprinidae, and cichlidae tribes.
Relationship between Coral Fish Community Structure with Chlorophyll-A Content and Sea Surface Temperature in the Conservation Area Suaka Alam Perairan (SAP) Raja Ampat, West Papua Muhammad Rizky Adipratama; Mauludiyah Mauludiyah; Dian Sari Maisaroh; Wiga Alif Violando; Ofri Johan; Idris; Paryono; Sadikin Amir
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.v23i2.4639

Abstract

The The waters of Raja Ampat have a healthy coral reef ecosystem and a wide variety of species so it has a high abundance of coral reef fish. One of the indicators of fertility level in water is chlorophyll-a and its high and low are influenced by sea surface temperature. The purpose of this study was to determine the relationship between chlorophyll-a content and sea surface temperature using satellite imagery data on the community structure of reef fish in the waters of SAP Raja Ampat. The coral reef fish data collection method used UVC (Underwater Visual Census) while the chlorophyll-a content and sea surface temperature used spatial analysis. The results showed that the reef fish diversity index value was 4,1 - 4,6 in the high category, uniformity 0,88-0,96 in the high category, dominance 0,014 - 0,026 in the low category, for abundance 244.340 ind/ha – 403.520 ind/ha and biomass 131,45 kg/ha - 204 kg/ha. The chlorophyll-a content obtained was 0,366 mg/m3 – 0,511 mg/m3 and the sea surface temperature obtained was 30,717°C – 31,899°C. The results of the relationship of reef fish community structure with chlorophyll-a content and sea surface temperature do not have a significant correlation.
Identification of Bacterial Contamination in River Water Lulut in East Banjarmasin District M. Anshori Mahboby
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.v23i2.4383

Abstract

Many people use river water for washing, bathing and some even still use traditional latrines. River water is starting to get polluted because it is contaminated with waste, especially bacterial contamination that occurs as a result of various kinds of waste from community activities around the river. Bacterial pollution in rivers is very dangerous if river water is used continuously by the community. The city of Banjarmasin accounts for the most diarrhea in South Kalimantan. The purpose of this study was to determine the value of contamination and the type of coliform bacteria in the water of the Martapura River, Sungai Lulut Village, East Banjarmasin District. The method used in this research is descriptive observation. All samples were positive with an average MPN value of >1100 MPN/g and were classified as rod-shaped gram-negative bacteria (bacillus) and suspected specifics of Escherichia Coli. The test results showed that the waters of the Martapura river, Lulut River Village, East Banjarmasin District, were contaminated with coliform bacteria that had passed the threshold of class 1 (1000 MPN/g) river requirements.
Distribution of Marine debris in Coral Reef Ecosystems on Mules Island, Sawu Marine National Park Idris Idris; Fakhrurrozi Fakhrurrozi; Desna Bagus Suhendar; Akbar Rochyadi; Rhojim Wahyudi; Chandrika Eka Larasati
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.v23i2.4618

Abstract

Mules Island and its surroundings are included in the Savu Sea National Park (TNP) area and administratively included in the Manggarai Regency, East Nusa Tenggara Province (NTT). The waters of the area have a high potential for coral reef ecosystem resources and are important support for the marine life. However, the current condition of anthropogenic pressure continues to increase due to an increase in the number of people living on the coast and small islands. One of the pressures that are currently a big issue is the existence of marine debris, where studies related to its impact and distribution on coral reef ecosystems are still very few. The purpose of this study was to determine the distribution and types of marine debris in the coral reef ecosystem on Nucamolas Island and its surroundings. Observations were made on 1-3 November 2021 at 12 stations. The research method used is the belt transect method with an area of 500 m2. Data collection was assisted by SCUBA diving equipment at a depth of 5-7 m on the coral reef flat. The results of this study found that the dominant marine debris in the coral reef ecosystem was organic waste (64.3%) and a group of macro debris (71,4%). Based on the type, the dominant species found were logs (37%), which physically damaged the coral, especially when currents and waves were moving. The distribution of marine debris at the study site was only found at 8 stations while the other 4 were not found.
Implementation of Smart Patrol in the Management of the Lipan and Rakit Island Marine Protected Areas Agus Rhismanda; Aan Saputra; Abdul Muis; Saptono Waspodo; Muhammad Haikal Abdurachman
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.v23i2.4622

Abstract

Smart Patrol application-based surveillance and monitoring activities are a form of patrol to communities that utilize conservation areas. This activity aims to determine the pattern of utilization and the level of community compliance with zoning in the Marine Conservation area of Lipan Island and Rakit Island. This research was carried out in January-December 2021 with a total patrol of 25 times / year, involving 3 Supervisory community groups (POKMASWAS): Kuda Laut, Karya Abadi and Lestari Bahari. The results of this study showed that there were 50 utilization points by 121 people from various villages: Labuhan Sangoro, Teluk Santong, Labuhan Aji, Labuhan Jambu, and Labuhan Kuris. In general, the fishing gear used is dominated by Gill Nets (28%) and Arrows (20%) with the composition of the catch being Reef fish (57%) and Small Pelagic fish (31%). Meanwhile, based on the level of fishermen's compliance in each zoning in the core zone, including the good category (76%), the utilization zone (97%) and the rehabilitation zone (98%) are in the excellent category
The Behavioral Diversity of Domestic Cats Living in Gampong Meurandeh and Gampong Teungoh Silvia Wardania; Putri Ayu Angelica Purba; Hanna Omi Kristefani Silaban; Sahna Maulana Sitakar; Roida Lisnawati; Nia Zunita
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.v23i2.4628

Abstract

Family felidae, the order of carnivores, includes Felis Domestica. Domestic cats can be kept as pets, wild domestic cats typically cluster in close proximity to human settlements. Feral domestic cats typically make use of human food resources that have been left over. As a result, the purpose of this research is to determine the variety of domestic cat behaviors in the area of Gampong Meurandeh and Gampong Teungoh in the Langsa Lama District of Langsa City in Aceh. The method used to observe the average daily behavior of domestic cats is by using survey methods and scan sampling carried out at 15 minute intervals. There were three categories of the observed cat's daily behavior: affiliative behavior, self-preservation, and negative behavior. Based on the study's findings, differences in daily behavior based on Gampong differences and time differences were dominated by self-care behavior, then affiliative behavior and then negative behavior. The morning and afternoon feeding times of the cats and humans in the two villages were not significantly different.
The Production and Organoleptic Test of Onion Peel Eco enzyme Adelina Maryanti; Fitri Wulandari
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.v23i2.4708

Abstract

Eco enzyme is a fermented organic waste liquid that can be used as a cleaning agent, natural fertilizer and effective pesticide. The organic waste, including vegetable residues and fruit pulp, can be processed into eco enzymes. Household activities are one source of organic waste by leftover cooking spices such as onion peels. Peoples don’t know the utilizing and treatment of organic waste such as onion peels. It has many usefullness. Onion peel is high in antioxidants and bioactive substances such as flavonoids and quarcetinwhich is very good for immune system maintenance. Furthermore, it contains allicin substances which have antimicrobial activity as antibacterial and antifungal agents. Onion peel can be used as a natural pesticide and fertilizer. Onion peels utilities can be processedby produceeco enzymes. This research aims to learn how to produce eco enzymes using onion peel as a source of household organic waste and how its organoleptic characteristics. The kind of study carried out is an investigation of the study's formulation are sugar: onion peel: water (1:3:10). The method used in this research is qualitative within the characteristic organoleptic test.The result of this research through mixing all the ingredients and three monts of fermentation to produce eco enzyme. The organoleptic characteristics of onion peel eco enzyme were sour of aroma, dark brown liquid and 98% of volume
The Effect of Felt Pressure and Adhesive Lath Weight on The Physical and Mechanical Properties of The Combination of Petung Bamboo and Sengon Laminated Boards Febriana Tri Wulandari; Radjali Amin
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.v23i2.4735

Abstract

Sengon wood as a construction material has several weaknesses, namely its specific gravity of 0.33 which is included in the light specific gravity (0.29-0.56) with a strong class III-IV. To increase the strength of sengon wood by making sengon wood into laminated boards combined with bamboo laminates. The aim of this study was to examine the effect of labur weight, compression pressure and their interactions on the physical and mechanical properties of the laminated boards of a combination of sengon wood and petung bamboo and to determine the strength class of the laminated boards based on their physical and mechanical properties. The research method used was the experimental method with a factorial Completely Randomized Design (CRD) experiment with 2 factors with 4 treatments and 3 replications. Based on the results of the study, it can be concluded that labur weight, felt pressure and their interactions have no significant effect on the physical properties of the laminated board combination of sengon wood and petung bamboo while the mechanical properties have a significant effect. All tests of physical and mechanical properties comply with SNI 01-6240-2000 and JAS 234-2007 standards. Based on the results of testing the physical and mechanical properties, the laminated board combination of sengon wood and petung bamboo is included in the strength class III which can be used for protected heavy construction.
The Diversity of Anuran Species in the Talago Waterfall, Tanjung Raya, Agam, West Sumatera Wulandari Wulandari; Fitra Arya Dwi Nugraha; Rijal Satria; Yusni Atifah
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.v23i2.4736

Abstract

Changing the function of habitat into a tourism area will have an impact on the diversity of Anuran species. This condition is currently happening in the Talago Nagari Paninjauan Waterfall Area, Tanjung Raya District, Agam Regency, West Sumatra. This study is therefore important for revealing the diversity of Anuran species before the impact to this habitat increase in the future. This study used the VES (Visual Encounter Survey) sampling technique, and information on various localities and the microhabitat of each species was recorded. A total 48 individuals, with 12 species belonging to six families of Anuran was collected. Species diversity in the Talago Waterfall area shows a medium level of diversity, with an index of 2.2653, a medium species richness index of 2.8414. In this area, no dominant species were found with a low dominance index (0.1207). If the level of tourism activity in the Talago Waterfall area increases, it will have an effect in the future by causing habitat disruption and the presence of Anura; thus, related parties must be able to take appropriate action on tourism activities in the area. 
Antimicrobial Activity of Gotu Kola (Centella asiatica) Leaf Extract as an Alternative to Herbal Beverage Nadya Treesna Wulansari; A.A.Istri Mas Padmiswari; Kadek Buja Harditya
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.v23i2.4817

Abstract

Pathogenic microorganisms include Aspergillus sp., Escherichia coli and Staphylococcus aureus. Antibiotic administration during the treatment of contagious illnesses may cause bacterial resistance. Treatment with herbal medicine, made from natural ingredients, is an option to prepare for this. A plant known as gotu kola (Centella asiatica) has the capacity to become a herbal beverage. The intention of this research was to discover whether gotu kola leaves, a herbal beverage, had any antimicrobial properties. This study was categorized as an experimental study with an entirely random approach. This study performing an analysis of variance on the data, the Duncan's Multiple Range Test was conducted. The findings demonstrated that Staphylococcus aureus and Escherichia coli bacteria could not grow when exposed to gotu kola leaf extract. Gotu kola leaf preparation has the ability to stop Staphylococcus aureus and Escherichia coli from growing. The greatest average hindrance of 9.67 ± 0.36 mm and 10.12 ± 1.12 mm against Escherichia coli and Staphylococcus aureus bacteria was obtained by 100% concentrated infusion from the leaves of gotu kola. Alkaloids, flavonoids, and tannins are examples of the gotu kola leaf extract's metabolite components that can increase the inhibitory power of the herb. However, the Aspergillus sp. in this research was not inhibited by the gotu kola extract. The body structure of the Aspergillus sp. and length of storing of the gotu kola extract are probable causes for there was not inhibitory effect.

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