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All Journal Jurnal Penelitian Pendidikan IPA (JPPIPA) COJ (Coastal and Ocean Journal)
Fery Kurniawan
IPB University
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Education Environmental Science Materials Science & Nanotechnology Physics Social Sciences

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Health Status of Seagrass Meadows Around the Special Economic Zone (SEZ), West Likupang, North Sulawesi Satriani; Zulhamsyah Imran; Fery Kurniawan; Perdinan; Akbar Ario Digdo
Jurnal Penelitian Pendidikan IPA Vol 10 No 1 (2024): January
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v10i1.5908

Abstract

Seagrass ecosystems offer valuable ecosystem services but are highly vulnerable to physical damage caused by human activities and rapid environmental change. Currently, there is very limited information available on monitoring and reporting the health of seagrass beds in Indonesian waters. This study aims to assess the species composition, density, diversity index, percentage of seagrass cover, health condition, and identification of threats to seagrass ecosystems around the West Likupang Special Economic Zone (SEZ), North Sulawesi. The method used was a seagrass watch with line transects and quadrant-shaped frames measuring 50x50 cm2. Transect lines were established through the seagrass ecosystem area at 50 m. There were three line transects at each station 25 m apart. Quadrant frame measuring 50x50 cm2. West Likupang has eight seagrass species including C. rotundata, E. acoroides, H. pinifolia, H. uninervis, H. ovalis, O. serrulata, S. isoetifolium, dan T. hemprichii. The health status of the seagrass is currently healthy, with a dense percentage of coverage. The identification of potential risks from anthropogenic activities such as the household disposal of waste at sea, gleaning, the use of boat anchors and propellers, and the construction of infrastructure in coastal areas, such as hotels and harbonurs, pose significant threats.
Total Suspended Solids Dynamics in Tin Mining Exploitation Areas in Northeastern Coastal Waters of Bangka Island: A Remote Sensing Approach Filialdi Nur Hidayat; Taryono Taryono; Fery Kurniawan
Coastal and Ocean Journal (COJ) Vol 10 No 1 (2026): COJ (Coastal and Ocean Journal)
Publisher : Pusat Kajian Sumberdaya Pesisir dan Lautan IPB

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/coj.v10i1.71899

Abstract

The dynamics of total Suspended Solids (TSS) are a characteristic of water quality that can be observed over time, especially in areas where water is used for extractive purposes, such as tin mining areas in Northeastern Coastal Waters of Bangka Island. This study describes the TSS dynamics that occurred in those areas which are covered by Landsat 8 Imagery (Path123/Row 061). This is interesting because the research location is a tin mining site whose exploitation activities have an impact on Total Suspended Solids in the surrounding area. The method used in this study was multispectral analysis of satellite imagery. The algorithm used was developed by Laili et al. (2015). The results show that during the 10-year study period, the dynamics of Total Suspended Solids on the Northeastern Coast of Bangka Island from 2015 to 2024 did not experience significant changes. The annual average values of Total Suspended Solids ranged from 18.48 mg/L to 18.74 mg/L. However, there is a significant difference (p-value of 0.00 on T-Test) between Total Suspended Solids levels within the tin mining area (19.15 mg/L) and those outside the tin mining area (18.64 mg/L).
Co-Authors Akbar Ario Digdo Filialdi Nur Hidayat Satriani Taryono Zulhamsyah Imran