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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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Effect of The Addition of Hyacinths as Feed to Increase The Production of Earthworms (Lumbricus rubellus) Rohani Rohani; Karnan Karnan; Mohammad Liwa Ilhamdi
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3816

Abstract

Water hyacinth (Eichhornia crassipes) is one of Indonesia's wild plants which is considered a weed because of its rapid growth that can cause environmental problems. Generally, water hyacinth control is carried out physically/conventionally by throwing it away or burning it, causing new environmental problems. Water hyacinth has a high organic matter content, therefore water hyacinth can be used as an alternative feed to increase the production of earthworms. This study aims to determine the effect of adding water hyacinth as feed to increasing the production of earthworms (Lumbricus rubellus).This study aims to determine the effect of adding water hyacinth as feed to increasing the production of earthworms (Lumbricus rubellus). The research was conducted in the Dasan Dao hamlet, Ranggagata Village, Southwest Praya District, Central Lombok Regency, in the researcher's private house for 60 days. This type of research is an experimental research. The research design used was a completely randomized design with 4 treatments and 4 replications. Treatments were P0 (0 grams of water hyacinth), P1 (50 grams of water hyacinth), P2 (100 grams of water hyacinth), P3 (150 grams of water hyacinth). Parameters observed were the number and weight of earthworms. The results showed that the treatment had a significant effect on the weight and number of earthworms (P<0.05). The results of the treatment on the number of earthworms P0;P1;P2;P3 were 84;93.75;117.25;127.5 and the weight of earthworms was 85;102.5;118.75;124.75. The highest number and weight of earthworms were found in the P3 treatment (150 g of water hyacinth). The conclusion of this research is the addition of water hyacinth as feed can increase the number and weight of earthworms.
Pollen collected by stingless bees Tetragonula laeviceps (Smith, 1857) (Hymenoptera: Apidae: Meliponini) from Central Sulawesi Masrianih Masrianih; Fatmah Dhafir; Manap Trianto
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3885

Abstract

The diversity of pollinating insects is used as conservation management. Pollen is gametophyte from male which can give characteristics to its offspring. The pollen carried by bees can be used as an identification of feed favored by bees. This study aims to identity pollen derived from the legs of stingless bees based on the color morphological characteristics of the pollen. The methods include color identification of pollen collected by stingless bees, pollen extraction, acetolysis, and pollen identification. Pollen with the same species at the study site has a color that is not much different. Stingless bees take pollen based on the size and distance of the plant to the hive. Smell and color as a secondary binder for stingless bees. Different plant pollen species can also be influenced by the protein requirements of each stingless bee colony. It can recognize the presence of flowering plants aroud the hive. The size of pollen can affect the bees in taking plant pollen.  
The Structure of Bivalvian Community in The Coast of Elak Elak Beach, West Sekotong, West Lombok, West Nusa Tenggara As An Enrichment of Invertebrate Animal Material for Senior High School Students Inda Wahyuni; Didik Santoso; I Putu Artayasa
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3905

Abstract

Elak elak beach has a sea and a coast with a substrate texture that is very suitable as a habitat for Mollusca including bivalves. Bivalves have many roles for the environment, especially in providing food for various other species in the food chain and can be used to determine water quality. This study aims to determine the community structure and distribution pattern of bivalves in Elak Elak Beach and to see student responses to booklets. The method used in this research is the line transect and quadratic method. The results of the study of the bivalves class molluscs found in the Elak Elak Coastal Coast consisted of 11 species belonging to 7 families. The species consists of Anadara gubernaculum, Anadara granosa, Gafrarium dispar, Glycymeris pectunculus, Liconcha ornata, Lucinoma heroica, Mactra grandis, Mactra nitida, Mactra ornata, Donax faba and Trachycardium flavum. The relative abundance reaches 40% where the highest abundance of bivalves is species Mactra grandis with a relative abundance value of 39.39%. The categories of diversity (H') are medium and uniformity (E) is high, and inversely proportional to the dominance value (C) is low. The structure of the bivalves community based on abundance, diversity, uniformity and dominance that has been studied shows the condition of the West Sekotong Elak Elak Beach, West Lombok district, it can be concluded that the community structure is still in normal condition. The distribution pattern of Bivalves on Elak Elak Beach, West Sekotong is divided into 2 types, namely there are uniform and clustered which are seen based on the calculated value of the Morisita dispersion index. Students' responses to booklets are that students respond very well and students are also very positive in responding to booklets as material enrichment about invertebrate animals for senior high school students.
Larvacidal Effect of Methanol Extract from Soursop Leaves Against 3rd Instar Larvae of Culex sp. Mortality Ni Putu Maitri Vidya Cita Riesky; Syamsul Bahri; Lalu Japa
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.3906

Abstract

The Culex genus is widely distributed in Indonesia. It is responsible for disrupting and interfering of human daily activities and also transmitting some diseases for human. Vector control strategies normally involve the use of synthetic larvacide however excessive use causes adverse effect on environmental quality and resistance to larvae. Thus, extract from soursop (Annona muricata L.) leaves may be an alternative sources of larval control agents. The present study reveals the larvicidal effect of methanol extract from soursop leaves against 3rd instar larvae of Culex sp. mortality. Experimental method with Completely Randomized Design (CRD) consisting of 6 treatments (0 ppm, 125 ppm, 250 ppm, 500 ppm, 1000 ppm and 2000 ppm) and 4 replications was carried out with Culex sp. 3rd instar larvae and the larval mortality was recorded after 48 hours since the exposure. Data were analyzed using one way ANOVA which was continued by Tukey HSD and followed by Probit analyze to determine LC50 and LC90. The results showed that the methanol extract of soursop leaves exhibited significant larvicidal activity with LC50 and LC90 values are 586,099 and 2119,645 ppm. The highest concentration increases the mortality rate of larvae. In conclusion, the soursop leaves methanol extract has a larvacide effect on the 3rd larvae of Culex sp. 
The Long-Tailed Monkey (Macaca fascicularis) Food Preferences In The Mount Pengsong Area Rifcka Aulia Hidayati; Muhlis Muhlis; M. Yamin
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.3907

Abstract

This study aims to know the type and food preference for the long-tailed monkey (Macaca fascicularis) in the Gunung Pengsong area. Data were collected using the observation method by direct observation at certain predetermined points consisting at the forest area around the settlement of Kuranji Village. This research was analyzed descriptively and qualitatively. The results of the research on the type of food Macaca fascicularis found in the forest area of ​​Mount Pengsong as many as 28 plant species, while around the settlement of Kuranji Village as many as 17 plant species. The preference of Macaca fascicularis in the forest area of Mount Pengsong was obtained as many as 5 plant species consisting of Ficus benjamina 15.2%,  Syzygium cumini 11.9%, Durio zibethinus 7.3%, Bambusa vulgaris 6.7% and Syzygium aqueum 6.6%, while the preference of Macaca fascicularis around the settlement of Kuranji Village was obtained as many as 9 plant species consisting of Muntingia calabura 17,5%, Moringa oleifera 12,4%, Syzygium cumini 11,3%, Nephelium lappaceum 10,3%, Ficus carica  8.9%, Mangifera indica 8%, Syzygium aqueum 7,9%, Ficus benjamina 6.8% and Manilkara kauki 5.7%.
The Effects of Liquid Organic Fertilizer of Vegetable Waste on The Growth of Cayenne Pepper Plants (Capsicum frutescens L.) Baiq Elita Mandalini; Prapti Sedijani; Ahmad Raksun
Jurnal Biologi Tropis Vol. 22 No. 4 (2022): 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.v22i4.3908

Abstract

Cayenne pepper (Capsicum frustescens L.) is one of the commodities in Indonesia. The agricultural sector still relies on organic fertilizers to increase the productivity of Cayenne pepper plants. Excessive use of inorganic fertilizers will disrupt the balance of the amount of nutrients in the soil which results in plant metabolism. This study aims to determine the effect of liquid organic fertilizer from vegetable waste on the growth of cayenne pepper plants a completely randomized design (RAL) with 6 levels of treatment (0 ml, 20 ml, 40 ml, 60 ml, 70 ml and 80 ml), was used plants each with 4 repetitions and 4 fertilization times. The plant growth variables observed in this study includ plant height, number of leaves and wet weight. The data obtained were analyzed using one way Anova and further test using Duncan Multiple Range Test (DMRT) at a test level of 0.05. The results showed that the liquid organic fertilizer treatment of vegetable waste had a significant effect on the growth of cayenne pepper plants. Concentration of 80 ml of liquid organic fertilizer gave the best effect on plant height, number of leaves and wet weight among the concentrasi applied.
Growth and Survival Rate of Striped Eel Catfish Fingerlings (Plotosus lineatus) at Different Sizes: Growth and Survival Rate of Striped Eel Catfish Fingerlings Asriyana Asriyana; Halili Halili; Abdul Muis Balubi; Asnawati Asrari; Raudhatul Mahdaniah
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3913

Abstract

Striped eel catfish (Plotosus lineatus) are fish that live in coastal waters but there are also those that live in river mouths. This study aimed to determine the growth and survival rate of striped eel catfish fingerlings at different sizes in controlled media. This study used a completely randomized design (CRD) with three treatments (different sizes) and three replications, so there were nine experimental containers. The treatments used were treatment A: maintenance of fingerlings size (3.5-4.0 cm); treatment B: maintenance of fingerlings size (4.9-5.6 cm); and treatment C: maintenance of fingerlings size (7.0-8.0). During maintenance, absolute length gain, relative growth rate, specific growth rate, and fingerlings survival were determined. The results showed that fingerling size had a significant effect on growth performance and survival. Fingerlings measuring 4.9-5.6 cm had the highest growth performance, while fingerlings measuring 7.0-8.0 cm showed the highest survival rate than other sizes. This indicates that the fingerlings measuring 4.9-5.6 cm and 7.0-8.0 cm are suitable for aquaculture.
Identification of Apis dorsata Bee Nesting Plants in Natural Forest of Lalang Village Sanggau Regency Kiki Supriyadi; Gusti Hardiansyah; Fathul Yusro; Yeni Mariani
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3917

Abstract

Apis dorsata is known as a forest bee that is very productive in producing honey. These bees can make nest combs only by relying on tree branches or branches. This study aims to identify the type of plant where Apis dorsata nests in the natural forest of Lalang Village, Meliau District, Sanggau Regency. This research was conducted using a survey method through interviews with respondents and site surveys to identify and measure tree height, tree diameter, and branch-free stems of the plant species where Apis dorsata bees nest. The data obtained is further analyzed and the results are presented in the form of tables and graphs. The results of our study found that there were 16 species of plants belonging to 8 families as Apis dorsata beehives. The family and names of these plants are Dipterocarpaceae (Anisoptera marginata, Shorea laevis, Dryobalanops lavevis, Dryobalanops beccarii, Anisoptera megistocarpa, Shorea parvifolia, Shorea leprosula), Fabaceae (Inga sp, Millettia borneensis, Koompassia sp, Koompassia excelsa), Apocaceae (Alstonia pneumatophora), Datiscaceae (Octomeles sumatrana), Lauraceae (Litsea sp), Malvaceae (Pterocymbium tubulatum), and Moraceae (Artocarpus sp). The dominant family is Dipterocarpaceae. The total height of Apis dorsata honeycomb trees is the most dominant (75%) in Lalang Village ranging from ±65-90 m, 10 species of sympodial branching (62.5%), and 68.75% of the trunk diameter found ranged from 50-159 cm.
Analisys of lead (Pb) Heavy Metal Content in Climbing Perch Fish (Anabas testudineus) Derived from Rawa Taliwang Lake, West Sumbawa Regency 2021 Lili Mantika Shoalichin; Khairuddin Khairuddin; M. Yamin
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3923

Abstract

Rawa Taliwang Lake as an Nature Park in West Sumbawa Regency have an economic value for the fishermens and fish traders from Climbing Perch fish (Anabas testudinesu). Consuming Heavy metals content in climbing perch fish will be damaged human body. This research aims to analysis of lead (Pb) heavy metal content in climbing perch fish (Anabas testudineus) derived from Rawa Taliwang Lake, West Sumbawa Regency 2021. This research was conducted for two months, starting from September - October 2021. Sampling was carried out by purposive sampling method at 2 research stations. Fish samples were taken are 2 fishes from each station using traditional rattan fish trap. The fish species taken were climbing perch fish. The research sample was then analyzed in the West Nusa Tenggara Health, Testing and Calibration Laboratory. The data analysis was carried out by taking muscle tissue from headsnake fish and then analyzing the content of heavy metal in the from lead using AAS (Atomic Absorbtion Spectrophotometry). The measurement result showed that heavy metal content of lead in climbing perch fish from Rawa Taliwang Lake 0,1 mg/kg (ppm) or still under the maximum standard  by Food and Drug Supervisory Agency (BPOM) No.5 of 2018 concerning the Maximum Limit of Heavy Metal Contamination in Processed Food which is 0,2 mg/kg.
The Effectiveness of Using Planting Media Based on Biotechnology Agents on the Growth of Wijayakusuma (Epiphyllum oxypetalum (DC.)Haw.) Hesti Fitria Dewi; Ida Yayu Nurul Hizqiah; Cartono Cartono; Mimi Halimah
Jurnal Biologi Tropis Vol. 22 No. 3 (2022): 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.v22i3.3931

Abstract

Wijayakusuma ornamental plant (Epiphyllum oxypetalum (DC.) Haw.) is a plant that is easily propagated by cuttings. To overcome this problem, it is necessary to pay attention to the planting media used. This study aims to determine the effectiveness of providing planting media based on biotechnology agents on the growth of Wijayakusuma ornamental plants. This study is a quasi-experimental quantitative study using a Randomized Block Design, this study used six treatments with four replications. Follow-up test using Duncan's Post-Hoc Test at a level of 5% using SPSS version 26 program. The results of the analysis of various studies stated that planting media based on biotechnological agents with a mixture of burnt husks, cocopeat, raw husks, andam, livestock manure and liquid fertilizer obtained results < 0.05 which means that it has a significant effect on the parameters measured, such as the number of leaves, stem height, and plant root length. These results indicate that the effectiveness of using growing media containing potassium, calcium, phosphorus, through the fermentation process, contains biotechnological agents such as rhizobium, mycorrhizae, and phytohormones that affect plant growth. The most optimal composition of planting media based on biotechnology agents for plants based on Duncan's Post-Hoc test results is T2 treatment with a composition of growing media based on biotechnology agents + roasted husk growing media. Then there is no relationship between climatic factors with the growth of ornamental plants Wijayakusuma. Wijayakusuma plants grow well in places that are not exposed to direct sunlight, normal environmental temperature and humidity, moist soil that is neither too wet nor too dry, and optimal soil pH.

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