Kepadatan dan Pola Distribusi Kima (Tridacnidae) di Perairan Pulau Lemukutan Kalimantan Barat
DOI:
https://doi.org/10.26418/lkuntan.v9i1.99890Keywords:
Giant Clams, Density, Abundance, Distribution Patterns, Lemukutan IslandAbstract
Lemukutan Island is a marine conservation area in Bengkayang Regency, West Kalimantan, with high marine resource potential. Besides supporting tourism activities such as diving and snorkeling, its waters host ecologically important giant clams (Tridacnidae), which function as natural biofilters in reef ecosystems. However, information regarding the biodiversity and population status of giant clams in this area remains limited. This study aimed to assess the density and distribution patterns of giant clams in the waters of Lemukutan Island. Field data were collected in July 2025 at four observation stations representing the eastern and western parts of the island using the belt transect method (50m x 5 m). Data analysis included calculations of density, relative abundance, and distribution patterns using the Morisita Index. A total of 329 individuals belonging to three species were recorded: Tridacna crocea, T. maxima, and T. squamosa. T. crocea was the most dominant species at all stations, with the highest average density (0.231 ind/m²) and relative abundance (14.732%). In contrast, T. squamosa showed the lowest average density (0.067 ind/m²). Station 2 exhibited the highest overall density (0.254 ind/m²) and relative abundance (16.241%) compared to other stations. The distribution pattern of giant clams was predominantly clumped. However, a more uniform distribution of T. crocea and T. maxima was observed at Stations 3 and 4. Variations in density and distribution were closely associated with coral reef availability and water quality conditions. These findings provide baseline data to support sustainable conservation and management of giant clams in Lemukutan Island waters.References
Arbi, U.Y. 2017. Kepadatan Dan Kondisi Habitat Kerang Kima (Cardiidae: Tridacninae) Di Beberapa Lokasi Di Perairan Sulawesi Utara. BAWAL Widya Riset Perikanan Tangkap, 3(2):139-148.
Azkar, M., Z. Zibar, D.W. Sari. 2024. Wisata Pulau Lemukutan Kabupaten Bengkayang. Jurnal Kelautan Dan Pesisir, 1(1): 13–23.
Brower, J., J. Zar, C. Von Ende. 1998. Field and Laboratory Methods of General Ecology (4th ed.). Ohio: McGraw-Hill.
Fazillah, M.R., C. Octavina, M. Agustiar, M. Akhyar. 2020. Population Structure of Giant Clams (Tridacnidae) In Aceh Besar District Waters. Tomini Journal of Aquatic Science, 1(2): 73–80.
Gumilar, I., M. Fauzi, I. Riyantini, Sunarto. 2023. Biodiversity and Distribution Patterns of Clams (Tridacninae) on Coral Reefs in Kayu Angin Bira Island, Indonesia. Asian Journal of Fisheries and Aquatic Research, 25(4): 117–126.
Iriansyah, I., R.F. Tapilatu, H. Hendri. 2021. Abundance, Distribution Patterns and Habitat Conditions of Giant Clam (Family: Tridacnidae). Musamus Fisheries and Marine Journal, 3(2): 95–106.
Iskandar, R., E. Ishak, D. Oetama. 2023. Density and Composition of Species Clam (Tridacna sp.) Based on Coral Cover Conditions in Wawosunggu Waters, Konawe Regency. Jurnal Biologi Tropis, 23(2): 282–288.
Krebs, C.J. 1989. Ecological Methodology. New York: Harper & Row.
Lachapelle, E.C. 2020. Current Topics in Molluscan Aquaculture. In M. A. Rice (Ed.). Proceedings of AFS: Current Topic in Molluscan Aquaculture, 9–22.
Lee, R.P.T., Y.R. Lin, C.Y. Huang, F.H. Nan. 2024. Effects of Nutrient Source, Temperature, and Salinity on the Growth and Survival of Three Giant Clam Species (Tridacnidae). Animals, 14(7): 1054.
Ma, H., Y. Zhang, Y. Zhang, S. Xiao, C. Han, S. Chen, Z. Yu. 2019. The Complete Mitochondrial Genome of The Giant Clam, Tridacna maxima (Tridacnidae Tridacna). Mitochondrial DNA Part B: Resources, 4(1): 1051–1052.
Nugroho, B.A., A. Fauzi, A. Suciyati, A. 2025. Pola Persebaran Kerang Kima (Tridacnidae) di Karang Tebabinga, Perairan Pulau Derawan, Kalimantan Timur. Jurnal Moluska Indonesia, 9(1): 18–24.
Odum, E.P. 1993. Fundamentals of Ecology (Second Ed). Philadelphia: Saunders Company.
Oktapyani, E., N. Idiawati, S.I. Nurdiansyah. 2020. Kepadatan dan Pola Distribusi Kima (Tridacna crocea) di Perairan Pulau Kabung Kalimantan Barat. Jurnal Laut Khatulistiwa, 3(3): 91–96.
Rizkifar, M.A., Y.N. Ihsan, H. Hamdani, S. Sunarto. 2019. Kepadatan dan Preferensi Habitat Kima (Tridacnidae) di Kepulauan Pulau Semak Daun Provinsi DKI Jakarta. Jurnal Perikanan Dan Kelautan, 10(1): 74–83.
Rubiyanti, I., F. Yulianda, Z. Imran. 2019. Analisis Kesesuaian Wisata Bahari. Pariwisata, 6(2): 136–140.
Sukmajaya, A., M.S.J. Sofiana, S. Helena. 2025. Kepadatan dan Pola Distribusi Kima (Tridacnidae) di Perairan Timur Pulau Penata Besar Kabupaten Bengkayang Kalimantan Barat. Jurnal Laut Khatulistiwa, 8(2): 124–133.
Van Wynsberge, S., S. Andréfouët, N. Gaertner-Mazouni, C.C.C. Wabnitz, M. Menoud, G. Le Moullac, P. Levy, A. Gilbert, G. Remoissenet. 2017. Growth, Survival and Reproduction of The Giant Clam Tridacna maxima (Röding 1798, Bivalvia) in Two Contrasting Lagoons in French Polynesia. PLoS ONE, 12(1): 1–20.
