Potency of Gastropods as Ecological Bioindicators in the Anthropogenic Waters of Geger Beach Bay, Bali
Authors
I Made Dwi Guna Wijaya , Farhan Yudhistira Kurniawan , Maria Inggrit Indrayanti Soko , Uni Putri Audia Marpaung , Made Dendy PratamaDOI:
10.29303/jbt.v26i1.11379Published:
2026-02-26Issue:
Vol. 26 No. 1 (2026): Januari-MaretKeywords:
Bioindicators, Gastropods, Geger Beach, Water QualityArticles
Downloads
How to Cite
Downloads
Metrics
Abstract
The increasing pressure of tourism and urbanization in coastal areas like Bali often leads to environmental degradation, necessitating a robust biomonitoring system. Gastropods serve as ideal ecological bioindicators due to their limited mobility and specific tolerance to environmental stress. This study aims to assess the water quality of Geger Beach Bay using gastropods as indicators. Observations were conducted at three stations—upstream, midstream, and downstream—using the quadrant transect method. Community analysis included diversity (H'), evenness (E), and dominance (C) indices, alongside physicochemical water parameters. The results showed significant variations in community structure. The downstream station recorded the highest diversity (H' = 2.47) and abundance (129 individuals) due to stable salinity, while the upstream station had the lowest diversity (H' = 1.31) despite high DO, likely due to unstable substrate. PCA analysis confirmed that DO, temperature, and salinity were the primary environmental drivers. Low salinity (15-17 ppt) and pH levels indicate freshwater dilution from nearby hotel effluent. Overall, gastropods are effective bioindicators for coastal health, providing a scientific basis for sustainable management, specifically recommending improved wastewater treatment to preserve biodiversity.
References
Brower, J. E., Zar, J. H., & von Ende, C. N. (1998). Field and laboratory methods for general ecology (4th ed.). WCB McGraw-Hill.
Hamzah, F., & Setiawan, A. (2023). The impact of local ocean acidification on coastal ecosystems and calcareous organisms. Jurnal Kelautan Tropis, 26(1), 45–58. https://doi.org/10.14710/jkt.v26i1.xxxx
Hikmiyah, E. N. M. (2025). Gastropod diversity in the coastal intertidal zone of Paciran District, Lamongan Regency [Doctoral dissertation, Maulana Malik Ibrahim State Islamic University]. Institutional Repository UIN Malang.
Krebs, C. J. (1999). Ecological methodology (2nd ed.). Benjamin/Cummings.
Litaay, M., Priosambodo, D., & Asyari, T. (2022). Diversity and distribution patterns of gastropods in the intertidal zone of Bira Beach, South Sulawesi. Spermonde, 8(1), 25–32. https://doi.org/10.20956/jks.v8i1.xxxx
Magurran, A. E. (2004). Measuring biological diversity. Blackwell Publishing.
Mulyani, N. S., & Ruswahyuni, A. (2016). Struktur komunitas gastropoda sebagai bioindikator kualitas perairan di kawasan mangrove Pantai Utara, Jawa Tengah [Gastropod community structure as a bioindicator of water quality]. Jurnal Kelautan Tropis, 21(2), 79–88. https://doi.org/10.14710/jkt.v21i2.xxxx
Nathan, Y., Siahainenia, L., & Rotinsulu, W. (2024). Abundance and diversity of gastropods in the intertidal zone of Makariki State, Central Maluku. Jurnal Ilmiah Platax, 12(1), 38–48. https://doi.org/10.35800/jip.v12i1.xxxx
Odum, E. P., & Barrett, G. W. (2005). Fundamentals of ecology (5th ed.). Thomson Brooks/Cole.
Pranoto, T., & Agustriani, F. (2019). Analisis dampak kegiatan wisata bahari terhadap kualitas perairan dan biodiversitas pesisir [Analysis of the impact of marine tourism activities on water quality]. Jurnal Kelautan Nasional, 14(1), 1–15. https://doi.org/10.15578/jkn.v14i1.xxxx
Pratiwi, M. A., Surbakti, H., & Agussalim, A. (2021). Pengaruh debit air sungai terhadap sebaran salinitas dan pH di wilayah muara [The effect of river water discharge on salinity and pH distribution]. Maspari Journal: Marine Science Research, 13(2), 89–102. https://doi.org/10.56064/maspari.v13i2.xxxx
Rahman, I., Wahida, N. S., & Al-Idrus, A. (2024). Gastropod biodiversity and the influence of environmental parameters in silvofishery mangrove land. Journal of Marine Research, 13(3), 555–567. https://doi.org/10.14710/jmr.v13i3.xxxx
Raiba, R., Ishak, E., & Permatahati, Y. I. (2022). Struktur komunitas gastropoda epifauna intertidal di perairan Desa Lampanairi [Intertidal gastropod epifauna community structure]. Jurnal Sains dan Inovasi Perikanan, 6(2), 87–102. https://doi.org/10.33772/jsip.v6i2.xxxx
Rosenberg, D. M., & Resh, V. H. (1993). Freshwater biomonitoring and benthic macroinvertebrates. Chapman & Hall.
Rozirwan, R., Melki, M., & Apri, R. (2021). Struktur komunitas moluska (Bivalvia dan Gastropoda) di Muara Sungai Musi [Structure of mollusk communities at the mouth of the Musi River]. Jurnal Penelitian Sains, 23(1), 52–60. https://doi.org/10.56064/jps.v23i1.xxxx
Santoso, M. S., Supriyadi, S., & Kusman, M. (2021). Keanekaragaman moluska bivalvia dan gastropoda sebagai indikator kesehatan ekosistem lamun [Diversity of bivalves and gastropods as indicators of seagrass ecosystem health]. Jurnal Biologi Tropis, 21(2), 265–276. https://doi.org/10.29303/jbt.v21i2.xxxx
Sembel, L., et al. (2024). Hubungan kelimpahan gastropoda dan bahan organik total sedimen [Relationship between gastropod abundance and total organic matter]. Jurnal Biologi Tropis, 24(2), 210–219. https://doi.org/10.29303/jbt.v24i2.xxxx
Sembiring, A. A., & Purba, N. P. (2018). Hubungan indeks keanekaragaman makrozoobentos dengan kualitas air [The relationship of macrozoobenthos diversity index with water quality]. Jurnal Ilmu dan Teknologi Kelautan Tropis, 10(2), 345–356. https://doi.org/10.29244/jitkt.v10i2.xxxx
Setyobudi, E., Harianto, M., & Wardhana, W. (2017). Penerapan biomonitoring menggunakan makrozoobentos [Implementation of biomonitoring using macrozoobenthos]. Biosfera, 34(1), 22–31. https://doi.org/10.20884/1.mib.2017.34.1.412
Supratman, O., Syari, I. A., & Farhaby, A. M. (2024). Studi kesesuaian habitat untuk restocking siput gonggong [Habitat suitability study for restocking Laevistrombus sp.]. Jurnal Kelautan Tropis, 27(1), 15–24. https://doi.org/10.14710/jkt.v27i1.xxxx
Suryanti, S., & Ruswahyuni, R. (2020). Hubungan kelimpahan gastropoda dengan kandungan bahan organik pada sedimen [The relationship of gastropod abundance with organic matter content]. Buletin Oseanografi Marina, 9(2), 115–122. https://doi.org/10.14710/buloma.v9i2.xxxx
Tualangi, C., Kondoy, K. I. F., & Rondonuwu, A. B. (2023). Struktur komunitas gastropoda di zona intertidal Pantai Waloindi [Gastropod community structure in the intertidal zone]. Jurnal Biologi Tropis, 23(1), 112–119. https://doi.org/10.29303/jbt.v23i1.xxxx
Washington, H. G. (1984). Diversity, biotic and similarity indices: A review with special relevance to aquatic ecosystems. Water Research, 18(6), 653–694. https://doi.org/10.1016/0043-1354(84)90164-7
Wilhm, J. L., & Dorris, T. C. (1968). Biological parameters for water quality criteria. BioScience, 18(6), 477–481. https://doi.org/10.2307/1294272
Yanti, A. D., Febrianto, T., & Kurnianto, D. (2022). Struktur komunitas gastropoda dan bivalvia di ekosistem mangrove Perairan Desa Pangkil [Gastropod and bivalve community structure in mangrove ecosystem]. Jurnal Akuatiklestari, 5(2), 102–110. https://doi.org/10.31629/akuatiklestari.v5i2.4063
License
Copyright (c) 2026 I Made Dwi Guna Wijaya, Farhan Yudhistira Kurniawan, Maria Inggrit Indrayanti Soko, Uni Putri Audia Marpaung, Made Dendy Pratama

This work is licensed under a Creative Commons Attribution 4.0 International License.

Jurnal Biologi Tropis is licensed under a Creative Commons Attribution 4.0 International License.
The copyright of the received article shall be assigned to the author as the owner of the paper. The intended copyright includes the right to publish the article in various forms (including reprints). The journal maintains the publishing rights to the published articles.
Authors are permitted to disseminate published articles by sharing the link/DOI of the article at the journal. Authors are allowed to use their articles for any legal purposes deemed necessary without written permission from the journal with an acknowledgment of initial publication to this journal.
























