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All Journal Jurnal Biologi Tropis JESASI
Farid Yasidi
Universitas Halu Oleo
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Earth & Planetary Sciences Economics, Econometrics & Finance Education Immunology & microbiology Physics Public Health Social Sciences

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Population Structure of Mangrove Snails (Terebralia sulcata) Around the Nickel Mining Area of Pomalaa, Southeast Sulawesi Muhammad Fajar Purnama; Farid Yasidi; Dedy Oetama; Haslianti Haslianti; Salwiyah Salwiyah; La Ode Abdul Rajab Nadia
Jurnal Biologi Tropis Vol. 26 No. 2 (2026): 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.v26i2.11850

Abstract

Nickel mining in Pomalaa, Southeast Sulawesi, potentially alters mangrove ecological dynamics, specifically affecting benthic biota. This study analyzes the population structure of the mangrove snail (Terebralia sulcata) using purposive systematic sampling across reference, transition, and mining-impacted zones. Data were collected via transect quadrat methods (5x5 m²) during January 2024–January 2025. Water quality analysis indicated significant elevations in dissolved Ni and organic loads (COD/BOD) in impacted areas. Population structure revealed a unimodal distribution dominated by the 35–45 mm class, with limited juvenile recruitment in stressed sites. The length-weight relationship (LWR) exhibited a strong negative allometric pattern (b = 2.02), indicating faster shell length growth as an adaptive response to environmental stressors. Despite a stable condition factor (Kn = 1.124), spatial disparities were evident through a progressive decline in density and biomass toward impacted stations. This study provides a significant scientific contribution by establishing T. sulcata as a sensitive bioindicator for nickel pollution. The findings emphasize that mining-derived stressors negatively correlate with biological performance, highlighting the necessity for policy-driven bioindicator monitoring and the integration of benthic health assessments into coastal management protocols within nickel industrial zones to mitigate long-term ecological degradation.
EDU-BAHARI: Sosialisasi Potensi Keanekaragaman Hayati Laut Sulawesi Tenggara untuk Mewujudkan Generasi Muda Berwawasan Bahari di MAN 1 Kendari Latifa Fekri; Hasan Eldin Adimu; Muhammad Taswin Munier; Farid Yasidi
JESASI (JURNAL EDUKASI, SAINS, DAN INOVASI) Vol. 3 No. 1 (2026): JESASI (Jurnal Edukasi, Sains, dan Inovasi) February - July 2026
Publisher : PT. CASA CENDEKIA MEDIA

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.66225/jesasi.v3i1.53

Abstract

Pengabdian kepada masyarakat ini bertujuan meningkatkan literasi kelautan, pemahaman terhadap keanekaragaman hayati laut Sulawesi Tenggara, serta jiwa kepemimpinan bahari siswa MAN 1 Kendari. Program ini dilatarbelakangi oleh besarnya potensi sumber daya laut Sulawesi Tenggara yang belum sepenuhnya diimbangi dengan literasi kelautan generasi muda. Metodologi kegiatan menggunakan pendekatan edukasi partisipatif dan pembelajaran berbasis pengalaman, meliputi persiapan, penyusunan modul Edu-Bahari, sosialisasi interaktif berbasis media visual lokal, diskusi analisis kasus pencemaran pesisir, evaluasi pre-test dan post-test, serta pembentukan komite siswa. Kegiatan melibatkan 50 siswa kelas X dan XI. Hasil evaluasi menunjukkan peningkatan pengetahuan yang signifikan, dari nilai rata-rata 54,20 pada pre-test menjadi 86,50 pada post-test, dengan skor N-gain 0,705 dalam kategori tinggi. Kesimpulannya, Edu-Bahari efektif memperkuat wawasan bahari siswa. Kontribusi penelitian ini adalah menyediakan model edukasi partisipatif berbasis sekolah untuk pengenalan biodiversitas laut dan literasi Blue Economy.
Co-Authors Dedy Oetama Hasan Eldin Adimu Haslianti Haslianti, Haslianti La Ode Abdul Rajab Nadia Latifa Fekri Muhammad Fajar Purnama Muhammad Taswin Munier Salwiyah Salwiyah