Article Per Year (5 Year)
p-Index From 2020 - 2025
0.61
P-Index
This Author published in this journals
All Journal MANAJEMEN HUTAN TROPIKA Journal of Tropical Forest Management Journal of Tropical Life Science : International Journal of Theoretical, Experimental, and Applied Life Sciences
Aadrean
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Environmental Science

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
Measuring Effectiveness of SMART Patrol in Biodiversity Protection of Rimbang Baling and Bukit Betabuh, Sumatra Fardilla, Antika; Novarino, Wilson; Widodo, Febri Anggriawan; Hendra, Jon; Aadrean
Jurnal Manajemen Hutan Tropika Vol. 30 No. 2 (2024)
Publisher : Institut Pertanian Bogor (IPB University)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.7226/jtfm.30.2.180

Abstract

The main authorities and practitioners face crucial challenges in safeguarding wildlife and conservation areas due to massive direct anthropogenic disturbances, such as illegal logging, habitat conversion into human development areas, and wildlife poaching. Therefore, measuring the effectiveness of wildlife and habitat protection is essential for wider conservation intervention. This study aimed to examine patrol effectiveness using measurable effort and parameters of SMART-based data collection in Rimbang Baling and Bukit Betabuh, Sumatra. We conducted a series of planned SMART-based data collections in designated patrol blocks of Rimbang Baling from 2014 to 2018. We implemented catch per unit effort (CPUE) measurement by the number of detected illegal activities and then a generalized linear model (GLM) to assess the relationship between patrol efforts and threat numbers. This study covered 209 patrols within 2,129 patrol days, 13,153.05 patrol hours, and 14,864 km. The CPUE value decreased from 0.381 to 0.191. Our GLM showed that patrol efforts significantly reduced threat numbers. This study provides new knowledge regarding SMART-based data collection and its ability to increase the effectiveness of patrols in promoting better protection and threat reduction in conservation areas in Indonesia.
Authentication of Barbonymus spp. From Lake Singkarak Using DNA Barcoding: Authentication of Barbonymus spp. From Lake Singkarak using DNA Barcoding Salis, Viola Mutiara; Roesma, Dewi Imelda; Tjong, Djong Hon; Syaifullah; Aadrean; Dahelmi
Journal of Tropical Life Science Vol. 14 No. 3 (2024)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/jtls.14.03.15

Abstract

The local community distinguishes between Barbonymus belinka (Balingka) and Barbonymus schwanefeldii (Kapiek) in Lake Singkarak based on size due to the morphological similarities between the two species. From previous reports, B. belinka (Balingka) is a fish endemic to Lake Singkarak, West Sumatra, while B. schwanefeldii has a wider distribution, including Sumatra, Kalimantan, and Java. Consequently, molecular identification is necessary to discern between the species and to understand the DNA barcode characteristics of fish belonging to the genus Barbonymus in Lake Singkarak. One molecular technique utilized for species identification is DNA barcoding, which focuses on the COI (Cytochrome Oxidase Subunit I) gene. Liver tissue samples from Balingka and Kapiek fish from Lake Singkarak were used in the study. Based on 585 bp of COI gene sequences and 30 comparison sequences from BOLD system and GenBank NCBI, seven samples from Lake Singkarak show a genetic distance of 0–1.2% from B. schwanefeldii populations elsewhere, with 15 differing nucleotide bases. Moreover, samples from Lake Singkarak show a genetic distance of 7.7–8.2% from B. belinka in the BOLD system from Aceh, with 42 differing nucleotide bases. Furthermore, two specific bases are present in B. schwanefeldii from Lake Singkarak. Based on the results of this research, it is known that all samples from Lake Singkarak, including Balingka and Kapiek, belong to the same species, namely B. schwanefeldii.
Unraveling Genetic Relationship and Morphological Divergence of Rasbora tornieri (Ahl, 1922) across Sumatra Island: Genetic and Morphological Study of Rasbora tornieri Prawira, Furqan; Syaifullah; Tjong, Djong; Aadrean; Maideliza, Tesri; Roesma, Dewi
Journal of Tropical Life Science Vol. 15 No. 1 (2025)
Publisher : Journal of Tropical Life Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.11594/

Abstract

Previous research indicates that the genetic diversity of Rasbora tornieri (Ahl, 1922) from the Musi River population in South Sumatra is notably low compared to populations from Borneo. Historical river connections between Sumatra and Borneo likely influence this low genetic diversity. However, the distribution of Rasbora tornieri across multiple geographic locations in Sumatra may contribute to significant genetic and morphological variations within this species. This study aims to elucidate the phylogenetic relationships and morphological variation of Rasbora tornieri across its known distribution in Sumatra. A comprehensive approach integrating molecular and morphological analyses was employed. Mitochondrial genes, Cytochrome c Oxidase subunit 1 (COI, 655 bp) and Cytochrome B (Cyt B, 629 bp), were sequenced, and morphological assessments were conducted. Phylogenetic and genetic diversity analyses revealed high genetic differentiation among populations. Morphological variations were statistically supported by the Mann-Whitney test, Principal Component Analysis (PCA), and Unweighted Pair Group Method with Arithmetic Mean (UPGMA) clustering, further highlighting population divergence. These findings indicate that geographic isolation and environmental factors influence the genetic and morphological diversity of Rasbora tornieri. Understanding these variations is crucial for conservation efforts, particularly amid habitat degradation and overfishing. This study provides valuable insights into freshwater fish biodiversity in Southeast Asia
Co-Authors Dahelmi Dewi Imelda Roesma Djong Hon Tjong Fardilla, Antika Hendra, Jon Prawira, Furqan Roesma, Dewi Salis, Viola Mutiara Syaifullah Tesri Maideliza Tjong, Djong Widodo, Febri Anggriawan Wilson Novarino