Article Per Year (5 Year)
p-Index From 2020 - 2025
1.513
P-Index
This Author published in this journals
All Journal Jurnal Dimensi Minda Baharu Jurnal Pembelajaran dan Biologi Nukleus BioEksakta : Jurnal Ilmiah Biologi Unsoed SIMBIOSA
Fauziah Syamsi, Fauziah
Unknown Affiliation
Agriculture, Biological Sciences & Forestry Arts Humanities Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Education Environmental Science Immunology & microbiology Languange, Linguistic, Communication & Media Veterinary Other

Published : 11 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 11 Documents
Search

 1   2 
Population Structure and Anthropogenic Pressure of Sea Urchin Utilisation (Diadema setosum) on Shallow Coral Reefs of Dedap Island, Batam Manihuruk, Pitrin Octca; Efendi, Yarsi; Syamsi, Fauziah
JURNAL PEMBELAJARAN DAN BIOLOGI NUKLEUS Vol 11, No 3: Jurnal Pembelajaran Dan Biologi Nukleus September 2025
Publisher : Universitas Labuhanbatu

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36987/jpbn.v11i3.7920

Abstract

Background: Diadema setosum is a key species in maintaining coral reef stability through its role in controlling algal growth. However, exploitation for consumption and trade of its gonads by coastal communities has generated anthropogenic pressures that threaten population sustainability. This study aims to assess the population structure and utilisation pressure on   D. setosum in the shallow coral ecosystem of Dedap Island, Batam City. Methodology: Observations were carried out at five stations using a 50-metre belt transect method with 5×5 m quadrat plots. Data were analysed through descriptive statistics to determine density and distribution, while correlation and regression analyses were applied to examine the influence of environmental parameters (temperature, dissolved oxygen, salinity, and pH). Structured quantitative interviews with local fishermen were conducted to obtain information on harvesting practices. Results: The population density ranged from 0.180 to 0.292 ind/m², with a clustered distribution pattern observed at stations farther from human activity. Regression results indicated that temperature significantly increased density, while dissolved oxygen and pH had significant negative effects. Fishermen reported daily harvesting during low tide with yields of 2–3 kg of gonads per person. These findings demonstrate exploitation pressure on D. setosum, underscoring the need for ecosystem-based management. Contribution: The novelty of this study lies in integrating ecological surveys with socio-economic data, offering comprehensive insights for locally adapted conservation strategies.
Co-Authors Alfajri, Desman Amelia Amelia Ardiansyah, Rio Destaria Sudirman Nurhaty, Destaria Sudirman Dini Anggraini, Dini Erwin Ashari, Erwin Fenny Agustina, Fenny Lani Puspita, Lani Manihuruk, Pitrin Octca Masni Masni Nurhaty Purnama Sari, Nurhaty Purnama Rahman Hasibuan, Rahman Rahmi Rahmi Ramses Firdaus, Ramses Savitri, Yulia Wiryawan, Mahardika Yarsi Efendi, Yarsi