Assessment of coral health and lifeform composition using the CoralWatch method at Tunda Island, Banten, Indonesia
DOI:
https://doi.org/10.29080/mrcm.v7i2.2567Keywords:
CoralWatch, coral bleaching, coral health, coral lifeforms, coral pigmentation, SymbiodiniumAbstract
The waters surrounding Tunda Island support coral reef ecosystems ranging from low to moderate condition, which nevertheless provide essential ecological functions for marine life and coastal communities. Coral reefs are formed through the deposition of calcium carbonate produced by reef-building corals in symbiosis with Symbiodinium. These symbiotic algae perform photosynthesis, supplying a substantial portion of the energy required by their coral hosts while contributing to coral pigmentation and overall reef health. However, coral health is increasingly threatened by environmental stressors, including rising sea temperatures and declining water quality. This study aimed to assess the health status of corals at Tunda Island, Indonesia, using the CoralWatch method based on changes in coral tissue coloration. Data were collected through random surveys at six observation stations distributed around Tunda Island. The results showed that the coral community was dominated by branching corals (36.8%), followed by boulder (26.1%), plate (25.7%), and soft corals (11.4%). Coral health assessment indicated that most colonies were under moderate physiological stress, with color Scores 3 (34.2%) and 4 (54.4%) being the most frequently recorded categories, reflecting reduced pigmentation and an increased susceptibility to bleaching. These findings provide baseline information for long-term coral reef monitoring and highlight the importance of sustainable coastal management to reduce environmental stress and maintain coral reef resilience at Tunda Island.
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References
Faizi, H., Ulumi, B., & Syafar, M. 2021. Pengembangan Ekowisata Pulau Tunda Berbasis Komunitas dalam Era Industri 4.0. Jurnal Antropologi. 23(1): 118-128. https://doi.org/10.25077/jantro.v23.n1.p118-120.2021
Pelupessy, Y. A. E. G., Prasetijo, R., Sandhika, I. M. G. S., & Rosiana, I. W. 2024. Analisa Pertumbuhan Karang dengan Metode CPCe dan Sistem Pemeliharaannya pada Program Restorasi Karang di Nusa Penida Bali. Jurnal Kelautan: Indonesian Journal of Marine Science and Technology. 17(2): 159-170. https://doi.org/10.21107/jk.v17i2.21861
Ratna, P. D., Ira, I., & Rahmadani, R. 2017. Kesehatan Karang di Perairan Kessilampe Kota Ken-dari Berdasarkan Skor Kesehatan Karang dan Densitas Symbiodinium. Omni-Akuatika. 12(3). https://dx.doi.org/10.20884/1.oa.2016.12.3.162
Taofiqurohman, A., Faizal, I., & Rizkia, K. A. 2021. Identifikasi Kondisi Kesehatan Ekosistem Terumbu Karang di Pulau Sepa, Kepulauan Seribu. Buletin Oseanografi Marina. 10(1): 23–32. https://doi.org/10.14710/buloma.v10i1.32169
Fakhrurrozi, F., Idris, I., Sereni, H. P., Mauludiyah, M., Ma'ruf, S. M. Z., Khasanah, R. I., & Munir, M. 2025. Biodiversity of Coral Reefs Ecosystem at Tunda Island, Banten, Indonesia. BIO Web of Conferences, EDP Sciences. 168: 01004. https://doi.org/10.1051/bioconf/202516801004
Faqih, M. R. U., Idris, I., Mauludiyah, M., Fakhrur-rozi, F., Maisaroh, D. S., & Joesidawati, M. I. 2025. Coral Reef Health Index on Tunda Island, Banten, Indonesia. BIO Web of Conferences, EDP Sciences. 168: 01002. https://doi.org/10.1051/bioconf/202516801002
Kamagi, J. W. A., Djamali, R., Towoliu, R. D., & Polii, A. 2022. Tingkat Kesehatan Karang Berdasarkan Coral Health Chart di Tiga Daerah Penyelaman di Taman Nasional Bunaken. Jurnal Pengelolaan Lingkungan Berkelanjutan. Journal of Environmental Sustainability Management. 205-216. http://dx.doi.org/10.20884/1.oa.2016.12.3.162
Reid, C., Marshall, J., Logan, D., & Kleine, D. 2012. Coral Reefs and Climate Change Workbook (Indonesia Edition). CoralWatch, The University of Queensland.
Malik, A., & Anzani, L. 2023. Pengaruh Perbedaan Modul Transplantasi Karang Terhadap Pertumbuhan Karang di Pulau Pramuka. Juvenil: Jurnal Ilmiah Kelautan dan Perikanan. 4(2): 90-103. https://doi.org/10.21107/juvenil.v4i2.19675
Souhoka, J. 2013. Condition and Biodiversity of Hard Coral at Gangga Island, North Sulawesi Gangga Island. ILMU KELAUTAN: Indonesian Journal of Marine Sciences. 18(4): 213-224. https://doi.org/10.14710/lr.v%25vi%25i.7166
Ati, A. S., Ramadhan, M. A. R., Awal, M. A., & Rechtisia, R. 2022. Struktur Komunitas Ikan dan Terumbu Karang Pulau Tunda, Kabupaten Serang, Banten. Bioma. 18(1): 15-23. https://doi.org/10.21009/bioma18%281%29.3
Moira, V. S., Luthfi, O. M., & Isdianto, A. 2020. Analysis of Relationship between Chemical Oceanography Conditions and Coral Reef Ecosystems in Damas Waters, Trenggalek, East Java. Journal of Marine and Coastal Science. 9(3). https://doi.org/10.20473/jmcs.v9i3.22294
Krisnawati, S., & Hidayah, Z. 2020. Pemetaan Terumbu Karang Pulau Gili Ketapang Probolinggo. Juvenil: Jurnal Ilmiah Kelautan dan Perikanan. 1(4): 437-450.
Naiu, C. A., Sahami, F. M., & Hamzah, S. N. 2014. Kondisi Terumbu Karang di Perairan Desa Bintalahe Kecamatan Kabila Bone Kabupaten Bone Bolango Provinsi Gorontalo. NIKe: Jurnal Ilmiah Perikanan dan Kelautan. 2(1). https://doi.org/10.37905/.V2I1.1248
Barus, B. S., Prartono, T., & Soedarma, D. 2018. Pengaruh Lingkungan terhadap Bentuk Pertumbuhan Terumbu Karang di Perairan Teluk Lampung. Jurnal Ilmu dan Teknologi Kelautan Tropis. 10(3): 699-709 https://doi.org/10.29244/jitkt.v10i3.21516
Hanafi, H., Fitriani, N. A., Athar, M. R., Hindami, R., Aulia, I. H., Rachmawati, S. F., Ir-reniza, K. Y., Anggiaputra, N. S. B., Syahrodji, P. S. E., Fadlan, A. N. M., Jeriansyah, J., Riyanti, R., & Arbanto, B. 2024. Identification of Coral Bleaching Attack Level using Coral Health Chart Method in Menjangan Kecil, Karimunjawa. Jurnal Biologi Tropis. 24(2): 888–897. https://doi.org/10.29303/jbt.v24i2.6877
Abdullah, R., Karlina, I., Kurniawan, D., Putra, R. D., & Mulyono, A. 2023. Variasi dan Komposisi Bentuk Pertumbuhan Karang (Life Form) di Perairan Bintan Timur. Jurnal Kelautan: Indonesian Journal of Marine Science and Technology. 16(1): 70–79. https://doi.org/10.21107/jk.v16i1.15212
Panero, M., Galbraith, G. F., Srinivasan, M., & Jones, G. P. 2023. Roles of Depth, Current Speed, and Benthic Cover in Shaping Gorgonian Assemblages at the Palm Islands (Great Barrier Reef). Coral Reefs. 42(5): 1045-1057. https://doi.org/10.1007/s00338-023-02411-6
Siebeck, U. E., Marshall, N. J., Klüter, A., & Hoegh-Guldberg, O. 2006. Monitoring Coral Bleaching Using a Colour Reference Card. Coral Reefs. 25(3): 453–460. https://doi.org/10.1007/s00338-006-0123-8
Anderson-King, K. D., Wayman, C., Stephenson, S., Heron, S. F., Lough, J. M., McWilliam, M., Richardson, L. E., Scott, M. E., & Cantin, N. E. 2023. Branching Coral Growth and Visual Health During Bleaching and Recovery On the Central Great Barrier Reef. Coral Reefs. 42(5): 1113–1129. https://doi.org/10.1007/s00338-023-02403-6
Hughes, T. P., Kerry, J. T., Connolly, S. R., Baird, A. H., Eakin, C. M., Heron, S. F., Hoey, A. S., Hoogenboom, M. O., Jacobson, M., Liu, G., Pratchett, M. S., Skirving, W., & Torda, G. 2019. Ecological Memory Modifies the Cumulative Impact of Recurrent Climate Extremes. Nature Climate Change. 9(1): 40–43. https://doi.org/10.1038/s41558-018-0351-2
Rahardjo, C., & Anzani, L. 2023. Analisis Kondisi Terumbu Karang Akibat Pengaruh Aktivitas Pariwisata Bahari di Pulau Tunda Menggunakan Software CPCe. Pena Akuatika: Jurnal Ilmiah Perikanan dan Kelautan. 22(1): 33-40. https://doi.org/10.31941/penaakuatika.v22i1.2566
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