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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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Correlation of Oceanographic Parameters with Yellowfin Tuna Catch in Fisheries Management Areas (WPP) 573 and 713 Sativa, Denianto Yoga; Muhammad Maulana Aldian Putra; Ida Ayu Ketut Marini
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8794

Abstract

Oceanographic parameters are related to the distribution of fish in the waters. The purpose of this study was to analyze the distribution trends of sea surface temperature (SST) and chlorophyll-a (CHL) and to determine the spatial-temporal correlation with the catch of yellowfin tuna. This research took place in WPP 573 and 713 between the north and south of the Alas Strait. Remote sensing methods and statistical regression analysis for SST and CHL in 2023 over 12 months. The penetration results of Aqua MODIS in 2023 show the highest fluctuation SST trend in December (30.71°C), the lowest in August (27.3°C). The highest CHL distribution occurred in December (37.81 mg/m3), and the lowest in February (0.66 mg/m3). The results of linear regression analysis between SSTs; CHL; SST and CHL, for yellowfin tuna fishing, obtained a correlation coefficient (r) of 0.421 each; 0,476; 0.623. Conclusions: 1). The relationship between SST and CHL with yellowfin tuna is in the strong category; 2). The fluctuating catch of yellowfin tuna causes the CHL and SST trends to change every month. CHL and SST values were highest in December, but they did not have a major effect on catches.
The Impact of Pesticide Wastewater on Environmental Health: A Bibliometric Analysis Putri, Dhea Kasnelia; Yuniarti, Elsa
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8798

Abstract

Pesticide wastewater is water containing dissolved or dispersed pesticide residues that can threaten environmental health. This study aims to assess the impact of pesticide wastewater on environmental health. The method employed was a literature review of the Scopus database using the keywords “pesticide AND wastewater AND health.” Data were analyzed with VOSviewer to map the interrelationships among keywords. The results revealed three maps with four color clusters highlighting the keywords “pesticide,” “wastewater,” and “health.” In conclusion, bibliometric analysis is effective for identifying research themes and guiding future studies. The implications of these findings are that bibliometric analysis can enhance understanding of research trends on pesticide wastewater and foster the development of more in‑depth studies and more effective pesticide wastewater management strategies.
The Knowledge Level of Hypertension Stage 2 Patients at Harapan Keluarga Hospital Regarding Complications in the Form of Aortic Aneurysm Sinaga, Keysha Angelica; Arsatt, Maz Isa Ansyori; Rahmat, Basuki; Wedayani, Anak Agung Ayu Niti
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8807

Abstract

Hypertension is a major contributor to cardiovascular complications, including aortic aneurysms, which can be fatal if left untreated. This study aims to examine the relationship between the level of hypertension, particularly stage 2, and the incidence of aortic aneurysm. A retrospective cohort analysis was conducted using medical records of 24 patients diagnosed with varying degrees of hypertension and aortic aneurysm at Harapan Keluarga Hospital in December 2024. Statistical analysis using the chi-square test revealed a significant association between hypertension severity and the incidence of aortic aneurysm (p = 0.000), with an odds ratio of 2.001 (95% CI: 2.010–2.229). These findings emphasize the need for enhanced patient education and preventive strategies, particularly among those with hypertension stage 2, to mitigate the risk of aneurysm-related complications.
Diversity of Weeds in Rice Cultivation (Oryza sativa L.) in Tahoa Village, Kolaka District, Kolaka Regency Maretik, Maretik; Fitra, Ramad Arya; Saif, Marfira; Yanti, Yanti; Mehora, Sutrisnawati; Handayani, Fitrianti
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8809

Abstract

Rice weeds are one of the pest organisms that can reduce production yields.rice because own allelophaty which are parasitic and kill plants directly.The existence of weeds has received little attention from the community in Tahoa Village, even though their existence can damage rice plants (Oryza sativa L.). Purpose of this research can provides information related to the diversity of weed types and their evenness in ricecultivation in Tahoa Village, Kolaka. Sampling was carried out bymaking a plot size of 1 mx 1 m as many as 27 plots divided into 3 stations. The data obtained will be analyzed descriptively and quantitatively and then displayed in the form of tables anddocumentation. Based on the results of the study in Tahoa Village, Kolaka District, Kolaka Regency, 6 families, 8 genera and 8 species were found, namely Digitalia ciliaris, Cynodondactylon, Paspalum scropiculatum L, Alternanthera sessilis L, Sphenoclea zeylanica Geartn., Oldenlandia corymbosaL, Ludwigia octovalvis And Fimbristylis miliacea L. Based on the research results, the most species found were Sphenoclea zeylanica Geartn.. The diversity index (H') of the three stations, namely H'(1.62) states that the diversity of the research location is classified as moderate. The evenness index (E) of the three stations, namely E (0.78) states that the weed evenness index at the research location is classified as high. This is because these weeds have high adaptability to environmental changes both in drought and rain conditions. However, further study is needed regarding the physiology of the weeds found to obtain information regarding their parasitic nature on rice plants.
Investigation of Flavonoid Levels of Black Rice from Rice (Oryza sativa L.) on Sumba Island Ghello, Jennilien Merinda; Bani, Gregorio Antonny
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8817

Abstract

Rice (Oryza sativa L.) is Indonesia’s main cereal crop and is classified into three types based on color: white, red, and black. Among these, black rice has the highest antioxidant content. As a secondary metabolite, antioxidant levels vary depending on regional characteristics. On Sumba Island in East Nusa Tenggara, black rice known as Wojalaka grows across four districts with distinct environmental conditions. This study aimed to evaluate the flavonoid content of Wojalaka black rice from these districts. Using UV-Vis spectrophotometry, ground rice samples were extracted via methanol maceration and analyzed through linear regression. The flavonoid levels found were West Sumba (Lamboya) 74.03 µg/L; Southwest Sumba (Kodi) 67.67 µg/L; Central Sumba (Umbu Ratunggai) 31.65 µg/L; and East Sumba (Matawai) 132.16 µg/L. The highest flavonoid concentration was observed in Matawai at 132.16 µg/L, while the lowest was in Umbu Ratunggai at 31.65 µg/L. These results indicate that flavonoid content depends on habitat conditions the drier the environment where the rice grows, the higher its flavonoid levels.
Management Plan for Gili Tangkong, Gili Nanggu and Gili Sudak Marine Conservation Area (MCA) West Lombok District Husni, Syarif; Yuniarti, Salnida; Junaidi, Muhammad
Jurnal Biologi Tropis Vol. 25 No. 1 (2025): Januari - Maret
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.v25i1.8821

Abstract

Ecologically, conservation areas play an important role in protecting the sustainability of ecosystems, where natural resources are able to maintain their reciprocal relationship and interdependence between marine biota and their physical environment. The purpose of this study is to describe the planning in the management of the Gita Nada Marine Conservation Area by identifying all problems and solutions to achieve them. The method used in this study is a qualitative method. The type of data used is secondary data from literature studies, articles and websites of the NTB Fisheries and Marine Service, the West Lombok Regency Marine and Fisheries Service and the Central Statistics Agency (BPS). Data analysis was carried out using the Zieobjective Oriented Project Planning (ZOOP) Method, a project planning method that is oriented towards goals. Based on the results of the study, it can be concluded that the problems in the management of the Gita Nada Marine Conservation Area (MCA) are over-exploitation of fish resources, degradation of mangroves and coral reefs and limited funding sources for supervision and monitoring. The planning program carried out includes institutional bio-physical and socio-economic surveys, socialization and advocacy for the management of the Gita Nada MCA, preparation of regulations for community-based coastal and marine resource management, rehabilitation of coastal ecosystems, facilitation of facilities and infrastructure, empowerment of coastal communities, and periodic supervision and monitoring.
Community Structure of Macroalgae in the Coastal Waters of Klui Beach, North Lombok Ario Kusuma, Dipo; Japa, Lalu; Raksun, Ahmad
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8841

Abstract

Macroalgae or also called seaweed are defined as macroscopic marine algae. This study aims to analyze the structure of macroalgae community in the coastal waters of Klui Beach, North Lombok. Samplings were conducted by using the combination of line transect and quadrat method. The macroalgae data collected were analyzed for calculating of species diversity index, eveness index, dominance index, and importance value index. The results showed that the community of macroalgae in the coastal water of Klui Beach consists of 11 species. The community of macroalgae of the coastal water of Klui Beach had species diversity index value of 1,661 (moderate category), evenness index value of 0,693 (relatively non-uniform category). However, the species  dominance index value was 0,246 which indicates that there was no dominance species. Ulva intestinalis was the species with the highest importance value (81,93%). This species was also recorded as the highest density. Environmental protection efforts must be considered in the development of tourism areas for the sustainability of macroalgae community in the coastal waters of Klui Beach, North Lombok.
Optimizing Bioelectricity Production from Thermophilic Bioelectrogens Consortium Using Agricultural Waste in Microbial Fuel Cells Apriansa, Apriansa; Irdawati, Irdawati
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8853

Abstract

Significant economic and population growth around the world has led to various problems, especially fossil fuel scarcity, energy production, as well as an increase in the volume of organic waste (agricultural, municipal, and industrial waste). As an alternative energy source, Microbial Fuel Cell (MFC) was chosen due to its promising prospects. The use of thermophilic bacteria and consortiums were chosen for their potential advantages in MFC systems. This study aims to explore the potential of thermophilic bioelectrogenous bacterial isolates of Sungai Sapan Aro (SSA) consortium 14&16 in producing bioenergy using various agricultural waste substrates (corn cob, rice straw, rice husk, and glucose as control). The results showed no significant difference in the use of agricultural waste substrates in the MFC system. Quantitatively, corn cobs produced voltages almost equivalent to glucose (control), while rice straw and rice husk produced lower voltages. The resulting voltages were glucose (0.59467 V), corn cob (0.57633 V), rice straw (0.43300 V), and rice husk (0.40400 V). The results of this study show better performance compared to previous studies in the field of electricity generation through MFCs.
Agroforestry Management in Realizing Sustainable Farming Systems in Dry Lands of Dompu Regency from an Ontological Perspective Yusuf, M.; Hemon, Farid; Sukartono, Sukartono
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8859

Abstract

Agroforestry management in dry land in Dompu Regency is important and strategic in efforts to improve resource sustainability and community welfare, namely by combining forestry and agricultural elements to create a sustainable and adaptive farming system to environmental changes. This paper aims to: (1) describe the concept and role of agroforestry in dry land farming; (2) analyze agroforestry management in realizing a sustainable farming system in Dompu Regency from an ontology perspective, and (3) analyze agroforestry models that can be developed in dry land farming in Dompu Regency. The method used in this study is a literature review: Data is analyzed descriptively. The results of the study indicate that: (1) Agroforestry is an integrated land management approach that integrates elements of forestry, agriculture, and livestock in one system to produce ecological and economic benefits simultaneously. (2) The application of agroforestry in Dompu Regency requires a multidimensional approach based on a comprehensive ontological understanding, covering physical and biological aspects, time dynamics, socio-economics, as well as axiological and epistemological dimensions; and (3) Several agroforestry models that have the potential to be developed in the dry land areas of Dompu Regency include: alley cropping (alley planting), silvopasture (combining trees and livestock), multistrata (tiered) systems, and intensive yard gardens. The selection of the right model must be adjusted to the biophysical characteristics of the land, the socio-economic conditions of the community, and the capacity of local institutions so that its implementation can run optimally and sustainably.
Identification of Butterfly Larval Host Plants in the Taman Wisata Alam (TWA) Gunung Tunak, Central Lombok Jupri, Ahmad; Cahyani, Inda Nur; Supardiono, Supardiono; Hidayati, Lilik
Jurnal Biologi Tropis Vol. 25 No. 2 (2025): April-Juni
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.v25i2.8863

Abstract

Host plants play an important role in the survival of butterflies, especially in the larval phase which is highly dependent on certain types of plants to obtain nutrients and essential chemicals. Various efforts need to be made to preserve the diversity of butterflies in the Gunung Tunak TWA Area through identification of butterfly larval host plants. This study was conducted to identify the diversity of butterfly larval host plants in the Gunung Tunak Nature Tourism Park, Central Lombok, NTB. Data collection was carried out using the exploration method for four days in two main locations, namely the breeding area and the observation route. The identification results found seven species of host plants, namely Pagoda (Clerodendrum japonicum), Biduri (Calotropis gigantea), Beringin (Ficus hispida), Aristukia (Aristolochia tagala), Bunga Air Mata Pengantin (Antigonon leptopus), Jeruk Purut (Citrus hystrix), and Jeruk Lemon (Citrus limon). Four of the seven plants found are hosts for butterfly larvae of the Nymphalidae family. Aristukia plants were only found in limited numbers, which may affect the survival of the protected butterfly species, Troides helena. These results emphasize the importance of conserving host plants to support the sustainability of butterfly populations in this area.

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