Article Per Year (5 Year)
p-Index From 2021 - 2026
0.408
P-Index
This Author published in this journals
All Journal Bioscientist : Jurnal Ilmiah Biologi Jurnal Biosilampari: Jurnal Biologi
Putri Lisya Anggraini
Universitas Bengkulu
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Social Sciences

Published : 2 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 2 Documents
Search

 1 
Assessment of Carbon Storage and Ecological Functions of Beach Sheoak (Casuarina equisetifolia) in Muara Cemara, Pantai Panjang, Bengkulu City Putri Lisya Anggraini; Darmi; Rizwar; Meliya Wati; Siti H. Norfahmi
Bioscientist : Jurnal Ilmiah Biologi Vol. 14 No. 2 (2026): June
Publisher : Department of Biology Education, FSTT, Mandalika University of Education, Indonesia.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33394/bioscientist.v14i2.18906

Abstract

This study aimed to estimate the aboveground biomass, carbon stock, and carbon dioxide (CO₂) sequestration of coastal she-oak (Casuarina equisetifolia) stands in Muara Cemara, Pantai Panjang, Bengkulu City, and to describe their ecological functions based on field observations. The study was conducted in September 2025 using a non-destructive method based on the allometric equation ln Y = –2.177 + 2.523(ln DBH). Data were collected from 17 systematically established plots, each measuring 20 m × 20 m. The results showed that the stands had an aboveground biomass of 2.37 ± 0.63 t ha⁻¹, a carbon stock of 1.09 ± 0.20 t C ha⁻¹, and CO₂ sequestration of 4.01 ± 1.06 t CO₂ ha⁻¹. The 21–30 cm diameter class contributed the largest proportion of total biomass and carbon stock, indicating the important role of medium-sized trees in carbon accumulation. Ecologically, C. equisetifolia may contribute to reducing coastal erosion, stabilizing sandy substrates, improving microhabitat conditions, and supporting coastal habitat functions. These findings indicate that C. equisetifolia stands have potential as a complementary component of coastal carbon storage, climate change mitigation, and ecosystem-based coastal management in sandy coastal environments.
Kelimpahan Fitoplankton sebagai Bioindikator Lingkungan Perairan di Sungai Uram, Kabupaten Lebong Meliya Wati; Novia Duya; Gress Pinesta; Putri Lisya Anggraini; Khonita R. Diani; Darmi; Rizwar
Jurnal Biosilampari : Jurnal Biologi Vol 8 No 2 (2026): Biosilampari: Jurnal Biologi
Publisher : Universitas PGRI Silampari

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62112/biosilampari.v8i2.674

Abstract

Phytoplankton are primary producers that respond rapidly to environmental changes and therefore have considerable potential as bioindicators of aquatic ecosystem conditions. This study aimed to analyze the abundance and community structure of phytoplankton and evaluate their ecological significance as bioindicators in the Uram River, Lebong Regency, Bengkulu Province. Sampling was conducted at four stations representing different habitat characteristics along the river continuum, including upstream, dam-influenced, settlement-associated, and downstream segments. Phytoplankton samples were collected using a plankton net and identified microscopically. Community analysis included abundance, Shannon-Wiener diversity, evenness, and dominance. A total of 52 phytoplankton species belonging to eight classes were identified, with Bacillariophyta as the dominant group, contributing 46.2% of the total species composition. The highest abundance was recorded at Station I (2,316.6 ind/L), while the highest diversity index was observed at Station III (H' = 3.380). High evenness values (0.855–0.898) and low dominance values (0.072–0.097) indicated a relatively stable community structure. Variations in phytoplankton composition among stations reflected differences in habitat conditions influenced by flow velocity, substrate characteristics, riparian vegetation, and human activities. These findings demonstrate that phytoplankton are effective bioindicators for assessing ecological conditions and provide baseline information for aquatic resource management and biomonitoring programs in the Uram River.
Co-Authors Darmi Gress Pinesta Khonita R. Diani Meliya Wati Novia Duya Rizwar Siti H. Norfahmi